# US 9,872,702 B2 · Natural orifice surgery system

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- Number: US 9,872,702 B2
- Document ID: US9872702B2
- Status: Granted
- Kind: B2
- Application number: 15/016,080
- Filed: 2016-02-04
- Published: 2016-06-02
- Granted: 2018-01-23
- Earliest claimed: 2010-10-01
- Assignees: Applied Medical Resources Corporation
- Applicants: Applied Medical Resources Corporation
- Inventors: Kevin K. Dang; Jeremy J. Albrecht; Blaze Brown; Adam Hoke; Adeeb Saiduddin; Gary M. Johnson; Jacob J. Filek
- Web page: https://patentgrep.com/patent/US9872702B2

## CPC

- A61B 17/3423: {Access ports, e.g. toroid shape introducers for instruments or hands (access sites for liquids A61M39/0247)}
- A61B 1/32: Devices for opening or enlarging the visual field, e.g. of a tube of the body
- A61B 17/0218: {for minimally invasive surgery (A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)}
- A61B 17/0293: {with ring member to support retractor elements}
- A61B 17/3421: {Cannulas}
- A61B 17/3431: {being collapsible, e.g. made of thin flexible material (A61B17/3423 takes precedence)}
- A61B 2017/00557: {inflatable (A61B2017/22051 takes precedence)}
- A61B 2017/00889: {antimicrobial, disinfectant}
- A61B 2017/00907: {for light}
- A61B 2017/0225: {flexible, e.g. fabrics, meshes, or membranes}
- A61B 2017/3419: {Sealing means between cannula and body}
- A61B 2017/3429: {having a unitary compressible body, e.g. made of silicone or foam}
- A61B 2017/3443: {with means for adjusting the length of a cannula}
- A61B 2017/3445: {used as instrument channel for multiple instruments}
- A61B 2017/345: {for introduction into a natural body opening}
- A61B 2017/3452: {for the rectum, e.g. for hemorrhoid surgery}
- A61B 2017/3466: {for simultaneous sealing of multiple instruments}
- A61B 2017/347: {Locking means, e.g. for locking instrument in cannula}
- A61B 2017/3482: {inside}
- A61B 2017/3486: {Balloon}
- A61B 2017/3492: {against the outside of the body}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Embodiments of a surgical access port system that comprises a retractor that is adapted for being coupled to a cap and that is particularly useful in natural orifice surgery are described. The retractor comprises an outer ring, wherein the outer ring is configured to be disposed proximate the natural orifice of the patient and substantially surround the orifice; a tubular body; a funnel segment extending between and coupling the outer ring and the tubular body, wherein the funnel segment provides a diametric reduction between the relatively large diameter of the outer ring and the relatively smaller diameter of the tubular body, which is sized to fit within a natural orifice with minimal distention of the orifice; and an inflatable member disposed around the distal end of the tubular body, the inflatable member sized and configured to fit snugly around the tubular body in the deflated condition and to expand against the wall of the natural orifice in the inflated state to thereby stabilize and retain the retractor within the orifice.

## Claims

### Claim 1

A surgical access system adapted for performing laparoscopic surgical procedures at a natural orifice comprising:
an outer ring, wherein the outer ring is configured to be disposed proximate the natural orifice of the patient and substantially surround the orifice;
a tubular body having a proximal end, a distal end, a longitudinal axis and a fixed length and diameter adapted to accommodate the anatomy of the natural orifice, wherein the tubular body defines a generally cylindrical passage large enough to accommodate at least two laparoscopic instruments there through;
a funnel segment extending between and coupling the outer ring and the proximal end of the tubular body, wherein the funnel segment comprises an inner surface that can provide a bearing surface for an obturator used to advance to the retractor into a body cavity and provides a diametric reduction between the relatively large diameter of the outer ring and the relatively smaller diameter of the tubular body, which is sized to fit within a natural orifice with minimal distention of the orifice;
a removable cap, wherein the cap is adapted to engage with the outer ring;
an inflation port disposed within the funnel segment;
an inflatable member circumferentially disposed around the distal end of the tubular body;
a channel connecting the inflatable member to the inflation port; and
an obturator comprising a proximal bearing surface sized and configured to bear against the inner surface of the funnel segment, an indent disposed along the periphery of the proximal bearing surface sized and configured to provide clearance for the inflation port, and a distal dilation surface sized and configured to expand the natural orifice,
wherein the inflatable member is configured upon to expand upon inflation circumferentially outward from the distal end of tubular body to engage the wall of the natural orifice and to thereby secure the tubular body within the natural orifice.

### Claim 2 (depends on 1)

The surgical access system of claim 1, wherein the tubular body comprises a substantially flexible material.

### Claim 3 (depends on 2)

The surgical access system of claim 2, wherein the flexible material is selected from the group consisting of a KRATON® material, a PELLETHANE® material and a silicone rubber material.

### Claim 4 (depends on 1)

The surgical access system of claim 1, wherein the tubular body comprises a polycarbonate.

### Claim 5 (depends on 1)

The surgical access system of claim 1, wherein the generally cylindrical passage is sufficiently large such that two or more surgical instruments positioned there through can be translated or pivoted relative to one another.

### Claim 6 (depends on 1)

The surgical access system of claim 1, wherein the tubular body comprises one or more coatings.

### Claim 7 (depends on 6)

The surgical access system of claim 6, wherein the coating comprises an anti-microbial coating.

### Claim 8 (depends on 1)

The surgical access system of claim 1, wherein the tubular body comprises two or more interlocking sections.

### Claim 9 (depends on 1)

The surgical access system of claim 1, wherein the tubular body comprises at least one window.

### Claim 10 (depends on 1)

The surgical access system of claim 1, wherein the tubular body comprises at least one perforation.

### Claim 11 (depends on 1)

The surgical access system of claim 1, wherein the funnel segment has a substantially linear taper between the relatively large diameter and the relatively smaller diameter.

### Claim 12 (depends on 1)

The surgical access system of claim 1, wherein the funnel segment has a curved profile between the relatively large diameter and the relatively smaller diameter.

### Claim 13 (depends on 1)

The surgical access system of claim 1, wherein the tubular body is formed from a relatively flexible material and the funnel segment and the outer ring are formed from a relatively rigid material.

### Claim 14 (depends on 1)

The surgical access system of claim 1, wherein the cap comprises a sealable access surface.

### Claim 15 (depends on 14)

The surgical access system of claim 14, wherein the sealable access surface is a gel pad.

### Claim 16 (depends on 1)

The surgical access system of claim 1, wherein the cap comprises at least one gas port.

### Claim 17 (depends on 1)

The surgical access system of claim 1, wherein the inflatable member assumes a toroid shape upon inflation.

### Claim 18 (depends on 1)

The surgical access system of claim 1, wherein the inflatable member assumes a disc shape upon inflation.