Variable length pneumostoma management system for treatment of chronic obstructive pulmonary disease

• US 8,474,449 B2
• Filed: 02/18/2009
• Issued: 07/02/2013
• Est. Priority Date: 02/19/2008
• Status: Expired due to Fees

• Current Assignee: Portaero, Inc
• Original Assignee: Portaero, Inc
• Inventors: Tanaka, Don, Wiesman, Joshua P., Plough, David C.
• Primary Examiner(s): Ostrup, Clinton T
• Application Number:
  US12/388,469
• Publication Number:
  US 20090205650A1
• Time in Patent Office: 1,595 Days
• Field of Search: 128/200.24, 128/200.25, 128/202.27, 128/205.12, 128/205.19, 128/205.24, 604/45, 604/174, 604/175, 604/180, 604/304, 604/307, 604/386
• US Class Current: 128/200.24
• CPC Class Codes: A61B 2017/00809 Lung operations
• CPC Class Codes: A61K 9/007 Pulmonary tract; Aromatherapy
• CPC Class Codes: A61M 1/04 Artificial pneumothorax apparatus
• CPC Class Codes: A61M 11/00 Sprayers or atomisers specially adapted for therapeutic purposes in general B05B; aerosol containers B65D83/14
• CPC Class Codes: A61M 11/005 using ultrasonics spraying or atomising liquids using ultrasonic vibrations in general B05B17/06
• CPC Class Codes: A61M 11/042 electrical
• CPC Class Codes: A61M 13/00 Insufflators for therapeutic or disinfectant purposes , i.e. devices for blowing a gas, powder or vapour into the body hand-held units in which gas flow is produced by muscular energy at the moment of use B05B11/062
• CPC Class Codes: A61M 15/0085 using ultrasonics spraying or atomising liquids using ultrasonic vibrations in general B05B17/06
• CPC Class Codes: A61M 15/009 using medicine packages with incorporated spraying means, e.g. aerosol cans pocket atomiser of the injector type A61M11/08
• CPC Class Codes: A61M 15/02 with activated or ionised fluids, e.g. electrohydrodynamic [EHD] or electrostatic devices; Ozone-inhalators with radioactive tagged particles
• CPC Class Codes: A61M 16/0816 Joints or connectors
• CPC Class Codes: A61M 16/0833 T- or Y-type connectors, e.g. Y-piece
• CPC Class Codes: A61M 16/202 electrically actuated
• CPC Class Codes: A61M 2039/0252 for access to the lungs
• CPC Class Codes: A61M 2039/0276 for introducing or removing fluids into or out of the body
• CPC Class Codes: A61M 2202/0208 Oxygen
• CPC Class Codes: A61M 2202/025 Helium
• CPC Class Codes: A61M 2202/064 Powder
• CPC Class Codes: A61M 2205/075 Bulb type
• CPC Class Codes: A61M 2205/7518 bacterial
• CPC Class Codes: A61M 2205/7536 : allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
• CPC Class Codes: A61M 25/02 : Holding devices, e.g. on the body
• CPC Class Codes: A61M 25/04 : in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 25/10 : Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00
• CPC Class Codes: A61M 27/00 : Drainage appliance for wounds or the like , i.e. wound drains, implanted drains negative pressure wound therapy devices A61M1/90; implements for holding wound open A61B17/02 ; middle ear drainage A61F11/202
• CPC Class Codes: A61M 39/02 : Access sites
• CPC Class Codes: A61M 39/0247 : Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Abstract

A flexible pneumostoma management device maintains the patency of a pneumostoma while controlling the flow of material through the pneumostoma. The pneumostoma management device includes flange attaches to the chest of the patient to secure the device in position. The pneumostoma management device also includes a tube which enters the pneumostoma to allow gases to escape the lung. The length of the tube is selected to match the dimensions of the pneumostoma of a patient. In order to manufacture devices having different tube lengths, the tube is formed at a longer length than required, cut to size and tipped. The tube may be formed by molding or extrusion.

Claims

1. A pneumostoma management device adapted to allow gases to exit parenchymal tissue of a lung through a pneumostoma in a chest of a patient, wherein the pneumostoma management device comprises:

an extruded tube having a first length and adapted to be cut to a second selected length sufficient to pass into the parenchymal tissue of the lung through the pneumostoma,

the extruded tube having a lumen, a proximal end and a distal end,

the distal end of the extruded tube having at least one opening adapted to admit gases from the parenchymal tissue of the lung;

a flange connected to the proximal end of the extruded tube such that an opening in the flange communicates with the lumen of the extruded tube,

the flange projecting a sufficient distance from the extruded tube to preclude passage of the flange into the pneumostoma, and

a filter disposed over the opening in the flange and secured to one of the flange and the extruded tube such that gases passing through the lumen of the tube passes through the filter.

2. The pneumostoma management device of claim 1, wherein the tube is connected substantially centrally to the flange.

3. The pneumostoma management device of claim 1, wherein the distal end of the tube is rounded over to provide an atraumatic tip.

4. The pneumostoma management device of claim 1, wherein the flange is made from the proximal end of the tube by heating the proximal end of the tube and deforming it to create the flange.

5. The pneumostoma management device of claim 1, further comprises one or more apertures in a wall of the tube proximate to the distal end of the tube and adapted to admit gases from the pneumostoma.

6. The pneumostoma management device of claim 1 further comprising:

a flexible patch for securing the pneumostoma management device to the chest of the patient;

wherein the patch is larger in area than the flange; and

wherein the patch has an aperture therethrough the aperture being larger than the diameter of the tube and smaller than the diameter of the flange such that the tube may be passed through the aperture and the flange may be secured to the patch.

7. The pneumostoma management device of claim 1 further comprising:

a flexible patch for securing the pneumostoma management device to the chest of the patient;

wherein the patch is larger in area than the flange;

wherein the patch has an aperture therethrough the aperture being larger than the diameter of the tube and smaller than the diameter of the flange such that the tube may be passed through the aperture and the flange may be secured to the patch; and

wherein the patch comprises a hydrocolloid adhesive for adhering the patch to the chest of the patient.

8. The pneumostoma management device of claim 1, wherein the filter is substantially flush with the flange.

9. The pneumostoma management device of claim 1, wherein the flange, filter and adhesive coating is less than 5 mm in thickness in combination.

10. A medical device for venting gases from parenchymal tissue of a lung of a patient through a stoma formed between skin of the patient and a lung of the patient, wherein the medical device comprises:

an extruded tube having a first length and adapted to be cut to a second selected length sufficient to pass into the parenchymal tissue of the lung through the chest wall,

the extruded tube having a lumen, a proximal end and a distal end,

the distal end of the extruded tube having at least one opening adapted to admit gases from the parenchymal tissue of the lung into the lumen;

a flange projecting radially from the proximal end of the extruded tube;

the flange having an opening which communicates with the lumen of the extruded tube; and

a filter secured over the opening in the flange such that gases in the lumen of the tube exit the lumen of the tube by passing through the filter.

11. The medical device of claim 10, wherein the tube is an extruded thermoplastic elastomer tube.

12. The medical device of claim 10, wherein the tube is an extruded tube and wherein the flange is made from the proximal end of the extruded tube by heating the proximal end of the tube and deforming it to create the flange.

13. The medical device of claim 10, wherein the tube is an extruded tube and wherein the distal end of the tube is rounded over to provide an atraumatic tip.

14. The medical device of claim 10, wherein the tube is an extruded tube and wherein:

the flange is made from the proximal end of the extruded tube by heating the proximal end of the tube and deforming it to create the flange;

the distal end of the tube is rounded over to provide an atraumatic tip.

15. The medical device of claim 10, further comprising one or more side openings in the tube adjacent the distal end of the tube and adapted to admit gases from the lung.

16. The medical device of claim 10 further comprising a thin flexible adhesive patch attached to the flange and adapted to secure the medical device to the chest of the patient.

17. The medical device of claim 10 further comprising a hydrocolloid patch attached to the flange and adapted to secure the medical device to the chest of the patient.

18. The medical device of claim 10, wherein the filter is substantially flush with the flange.

19. A medical device for venting gases from parenchymal tissue of a lung of a patient through a stoma formed between the skin of the patient and the lung of the patient, wherein the medical device comprises:

an extruded tube having a first length and adapted to be cut to a second selected length sufficient to pass into the parenchymal tissue of the lung through the chest wall,

the extruded tube having a lumen, a proximal end and a distal end,

the distal end of the extruded tube having at least one opening adapted to admit gases from the parenchymal tissue of the lung into the lumen;

a flange projecting radially from the proximal end of the extruded tube and adapted to prevent the distal end of the medical device from passing into the stoma;

the flange having an opening which communicates with the lumen of the extruded tube; and

a hydrophobic filter secured over the opening in the flange such that gases in the lumen of the tube exit the lumen of the tube by passing through the filter.