# US 10,369,259 B2 · Endoluminal vacuum therapy device

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- Number: US 10,369,259 B2
- Document ID: US10369259B2
- Status: Granted
- Kind: B2
- Application number: 14/405,110
- Filed: 2013-03-15
- Published: 2015-05-28
- Granted: 2019-08-06
- Earliest claimed: 2012-06-03
- Applicants: Daniel Eduard Kleiner
- Inventors: Daniel Eduard Kleiner
- Web page: https://patentgrep.com/patent/US10369259B2

## CPC

- A61M 1/916: {specially adapted for deep wounds}
- 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)}
- A61M 1/84: {Drainage tubes; Aspiration tips (for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32)}
- A61M 1/915: {Constructional details of the pressure distribution manifold}
- A61F 13/05: specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
- 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)}
- A61M 1/92: {with liquid supply means}
- A61M 2210/106: Small intestine
- A61M 2210/1064: Large intestine
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

There are provided devices for applying negative pressure to a wound in an endoluminal surface of a patient to facilitate healing of the wound and methods for use of the devices. The device (69, 94, 134, 140, 156, 164) comprises a flexible porous element with an outer face defined between opposite proximal and distal ends of the porous element. A suction tube (30) for being connected to a suction source externally of the patient's body is in fluid communication with the porous element (14) to apply the negative pressure to the wound via the outer face of the porous element. In some embodiments, the porous element has a longtitudinal passageway (16) for passage of bodily substances of the patient along the lumen defining the endoluminal surface through the porous element. In such embodiments, the device may also have at least one absorbent element (70, 80) for absorbing the bodily substances and which is disposed forwardly or rearwardly of the porous element (14). Embodiments of the device may also include a drainage tube (22) for collection and drainage of bodily substances from the patient and which is received in the longtitudinal passageway (16) of the porous element. In other embodiments, the porous element can be in the form of a mat wrapped around a feeding or other insertion tube. The porous element of a device embodied by the invention may also include one or more irrigation channels (85, 86) for delivery of an irrigation fluid into or though, the porous element. The porous element and/or absorbent element(s) may be sponge(s).

## Claims

### Claim 1

A device for applying a negative pressure to an endoluminal surface in the body of a patient to treat a wound in the endoluminal surface, comprising:
a flexible porous element with a peripheral outer face defined between opposite proximal and distal ends of the porous element;
an absorbent element for absorbing bodily substances within a bodily lumen formed by the endoluminal surface and which is disposed forwardly or rearwardly of the porous element whereby the porous element and the absorbent element are arranged end to end next to each other, a respective juncture being defined between the porous element and the absorbent element; and
a suction tube for being connected to a suction source externally of the patient's body and which is in fluid communication with the porous element to apply the negative pressure to the wound via the outer face of the porous element upon operation of the suction source, wherein at least one internal longitudinal passageway extends through the porous element from the proximal end to the distal end of the porous element and into the absorbent element through the juncture for passage of the bodily substances through the device from the lumen formed by the endoluminal surface, the juncture being otherwise sealed against egress of the bodily substances from the absorbent element into the porous element.

### Claim 2 (depends on 1)

The device according to claim 1, wherein the through passageway extends entirely through the absorbent element.

### Claim 3 (depends on 1)

The device according to claim 1, wherein the absorbent element is joined to the adjacent said proximal or distal end of the porous element.

### Claim 4 (depends on 1)

The device according to claim 1, wherein the absorbent element is disposed forwardly of the porous element.

### Claim 5 (depends on 1)

The device according to claim 1, wherein the absorbent element is disposed rearwardly of the porous element.

### Claim 6 (depends on 1)

The device according to claim 1, further comprising a drainage tube for collection and drainage of the bodily substances from the patient, wherein the drainage tube is received in the through passageway of the porous element.

### Claim 7 (depends on 6)

The device according to claim 6, wherein the drainage tube projects from the proximal and distal ends of the porous element, the interior of the drainage tube is defined by a surrounding side wall of the tube, and a plurality of through openings are provided in the side wall forward of the proximal end of the porous element.

### Claim 8 (depends on 7)

The device according to claim 7, wherein a plurality of further through openings are provided in the side wall of the drainage tube rearwardly of the distal end of the porous element.

### Claim 9 (depends on 1)

The device according to claim 1, wherein the porous element is cylindrical with a single longitudinal said through passageway, the through passage passageway being defined generally centrally within the porous element.

### Claim 10 (depends on 1)

The device according to claim 1, further comprising an expandable element arranged for expanding the porous element to press the outer face of the porous element against the wound.

### Claim 11 (depends on 10)

The device according to claim 10, wherein the expandable element is an inflatable inner core or is fabricated from a resilient material biased to an expanded normal resting state.

### Claim 12 (depends on 1)

The device according to claim 1, further comprising at least one irrigation channel for delivery of an irrigation fluid into, or through, the porous element.

### Claim 13 (depends on 1)

The device according to claim 1, wherein the porous element is fabricated from an absorbent material.

### Claim 14 (depends on 1)

The device according to claim 1, wherein the porous element and the absorbent element are each a respective sponge.

### Claim 15 (depends on 14)

The device according to claim 14, wherein the sponges are the same or different.

### Claim 16

A method for treating a wound in an endoluminal surface in the body of a patient, comprising:
providing a device for applying the negative pressure to the wound, the device having a flexible porous element with a peripheral outer face for contact with the wound and which is defined between opposite proximal and distal ends of the porous element, an absorbent element for absorbing bodily substances within a bodily lumen formed by the endoluminal surface and being disposed forwardly or rearwardly of the porous element whereby the porous element and the absorbent element are arranged end to end next to each other, a respective juncture being defined between the porous element and the absorbent element, and a suction tube for being connected to a suction source externally of the patient's body and which is in fluid communication with the porous element to apply the negative pressure to the wound via the outer face of the porous element upon operation of the suction source;
locating the device in position in the lumen formed by the endoluminal surface; and
applying the negative pressure to the wound via the outer face of the porous element, at least one internal longitudinal passageway extending through the porous element from the proximal end to the distal end of the porous element and into the absorbent element through the juncture for passage of the bodily substances through the device from the lumen, the juncture being otherwise sealed against egress of the bodily substances from the absorbent element into the porous element.

### Claim 17 (depends on 16)

The method according to claim 16, wherein the said passageway extends entirely through the respective said absorbent element.

### Claim 18 (depends on 17)

The method according to claim 17, wherein the said absorbent element is joined to adjacent said the proximal or distal end of the porous element.

### Claim 19 (depends on 16)

The method according to claim 16, wherein the device comprises said absorbent element disposed forwardly of the porous element.

### Claim 20 (depends on 16)

The method according to claim 16, wherein the device comprises said absorbent element disposed rearwardly of the porous element.

### Claim 21 (depends on 16)

The method according to claim 16, wherein the device further comprises a drainage tube received in the through passageway of the porous element for the passage of the bodily substances along the drainage tube to externally of the subject.

### Claim 22 (depends on 16)

The method according to claim 16, wherein the porous element is fabricated from an absorbent material.

### Claim 23 (depends on 16)

The method according to claim 16, wherein the porous element and the at least one absorbent element are each a respective sponge.

### Claim 24 (depends on 1)

The device according to claim 1, wherein the through said passageway provides for said passage of the bodily substances through the porous element separately from any exudate drawn from the wound into the porous element through its said outer face by the applied negative pressure, and, wherein the device is configured for being positioned internally in the body of the patient such that the porous element is directed along the lumen.

### Claim 25 (depends on 12)

The device according to claim 12, wherein the at least one irrigation channel comprises an irrigation channel arranged to deliver the irrigation fluid for irrigation of the suction tube.

### Claim 26 (depends on 6)

The device according to claim 6, further comprising an irrigation channel for delivery of irrigation fluid for irrigation of the drainage tube.

### Claim 27 (depends on 12)

The device according to claim 12, wherein the at least one irrigation channel comprises an irrigation channel for delivery of the irrigation fluid to an outer peripheral region of the porous element adjacent the outer face of the porous element.