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US3777757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sucking wound plug and chest aspirator
Assignee: Individual
•
Filing: 1971-01-08
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Granted: 1973-12-11
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Expires: 1991-01-08
Abstract
Abstract A unique inflatable bag catheter is provided having a pliable elongated bag disposed generally at the distal end thereof. A cylindrical end portion of the distal end may be formed with a plurality of apertures for the passage of fluids into the catheter from a space immediately adjacent the distal end. A terminal-most portion of the distal end of the catheter may be formed with a cushioning device to prevent damage to delicate internal portions of the body such as the lungs. A hand pump portion of the catheter may be threadedly and removably engaged with an inflatable balloon portion of the catheter. One-way valves may be provided in both the inflatable balloon portion of the catheter and the hand pump portion of the catheter to insure that fluids sucked in from the distal end of the catheter will travel only away from the distal end toward the proximal end of the catheter. One one-way valve may be disposed on either side of the hand pump which may comprise an elastomeric bulb. A conduit may be connected with the inflatable balloon for directing inflating fluids thereto. The free terminal end of the conduit may be fitted with threading corresponding with threading on the inflatable balloon portion of the catheter. Because of this arrangement, the hand pump may be attached initially to the conduit for inflating the balloon and then may be removed to be reconnected with the inflatable balloon portion of the catheter for evacuating fluids from within a body cavity. When the hand pump is threadedly engaged with the conduit for inflating the balloon, another one-way valve may be threadedly engaged within a free end portion of the elastomeric bulb portion of the catheter to convert the pump from a suction device to one for pressurizing of the inflatable balloon. In one alternative embodiment, a valved face mask may be provided to require a user to forceably exhale so as to increase the compression force on internal drainage fluids which force, in turn, permits the expulsion of undesirable internal fluids through the catheter by the pumping action of the chest wall.
Inventors
- 👤 R Gray
- 👤 J Caswell
- 👤 W Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:58
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61M16/00; A61M16/06; A61M25/00; A61M25/01; A61M25/02; A61M25/10; A61M25/1011; A61M16/0683; A61M2025/0213; A61M2025/0233; A61M2025/028; A61M2039/027; A61M2039/0273; A61M2039/0276; A61M2039/0297; A61M2205/00; A61M2205/02; A61M2205/0216; A61M2210/00; A61M2210/10; A61M2210/101
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
111 words
Apparatus comprising: catheter means having a distal end and a proximal end; inflatable bag means disposed at said distal end of said catheter means; inflating tube means for directing inflating fluid to said inflatable bag means; cushioning means presented on a terminal-most portion of said distal end of said catheter means; suction forming means for drawing fluid in through said distal end of said catheter means; and first one-way valve means disposed in said catheter means and operable to pass fluid from said distal end of said catheter toward said proximal end of said catheter in response to overpressure being transmitted thereagainst by fluid disposed within and adjacent said distal end.
Claim 2
Dependent Claim
111 words
Apparatus comprising: catheter means having a distal end and a proximal end; inflatable bag means disposed at said distal end of said catheter means; inflating tube means for directing inflating fluid to said inflatable bag means; cushioning means presented on a terminal-most portion of said distal end of said catheter means; suction forming means for drawing fluid in through said distal end of said catheter means; and first one-way valve means disposed in said catheter means and operable to pass fluid from said distal end of said catheter toward said proximal end of said catheter in response to overpressure being transmitted thereagainst by fluid disposed within and adjacent said distal end.
Claim 3
Dependent Claim
62 words
An apparatus according to claim 1, wherein said inflatable bag means has end walls having areas generally larger than the cross-secTional areas of a chest wall perforation to be sealed and said inflatable bag means has a generally cylindrical portion extending between said end walls so that said generally cylindrical portion engages snugly within various irregular surfaces of said chest wall perforation.
Claim 4
Dependent Claim
42 words
An apparatus according to claim 1, wherein said suction forming means comprises hand pump means; and said hand pump means forms a portion of a continuous closed fluid passageway extending from said distal end to said proximal end of said catheter means.
Claim 5
Dependent Claim
29 words
An apparatus according to claim 3, wherein said hand pump means comprises an elastomeric bulb formed as a part of said catheter and disposed intermediate the terminal ends thereof.
Claim 6
Dependent Claim
23 words
An apparatus according to claim 4, wherein said first one-way valve means comprises one valve disposed on each side of said elastomeric bulb.
Claim 7
Dependent Claim
40 words
An apparatus according to claim 5, wherein a first portion of said catheter including said proximal end presents said elastomeric bulb and is detachably connected with a remaining second portion of said catheter which second portion includes said distal end.
Claim 8
Dependent Claim
201 words
An apparatus according to claim 6, wherein a first end of said first portion of said catheter is formed with a first female threading and a first end of said second catheter portion is formed with a first male threading corresponding with said first female threading; a second end of said first portion of said catheter being formed with second female threading; a first end of said inflating tube means being formed with male threading corresponding with said second female threading of said second portion of said catheter; a second one-way valve means being removably engageable within said first female threading of said first portion of said catheter; and whereby said first portion of said catheter may be initially threadedly engaged with said inflating tube means for directing fluid to said inflatable bag means with said second one-way valve means being engaged within said first female threading of said first portion of said catheter and may then be removed from said inflating tube means and threadedly engaged within said second portion of said catheter for sucking fluids in through said distal end of said catheter and expelling said fluids through said proximal end after said second one-way valve has been removed.
Claim 9
Dependent Claim
112 words
A combined plug and chest aspirator for sealing wounds penetrating the chest wall cavity, comprising: an inflatable bag catheter; tube means for conducting fluid to said inflatable bag; cushion means disposed at the terminal-most portion of a distal end of said catheter; hand pump means provided on said catheter; a first one-way valve disposed in said catheter between said hand pump means and a proximal end of said catheter; a second one-way valve disposed in said catheter between said hand pump means and said distal end of said catheter; and said first and said second valves operable to pass fluid from said distal end of said catheter toward said proximal end thereof.
Claim 10
Dependent Claim
112 words
A combined plug and chest aspirator for sealing wounds penetrating the chest wall cavity, comprising: an inflatable bag catheter; tube means for conducting fluid to said inflatable bag; cushion means disposed at the terminal-most portion of a distal end of said catheter; hand pump means provided on said catheter; a first one-way valve disposed in said catheter between said hand pump means and a proximal end of said catheter; a second one-way valve disposed in said catheter between said hand pump means and said distal end of said catheter; and said first and said second valves operable to pass fluid from said distal end of said catheter toward said proximal end thereof.
Claim 11
Dependent Claim
127 words
A combined plug and chest aspirator according to claim 8, wherein said catheter comprises a first portion and a second portion; said first portion having said hand pump and said first one-way valve; said second portion having said inflatable bag and said second one-way valve; a first end of said first portion being provided with female threading; a first end of said second portion being formed with male threading corresponding with said last mentioned female threading; a free end of said tube means for conducting fluid to said inflatable bag having male threading; and said first portion of said catheter being formed with female threading at a second end thereof corresponding with said male threading formed on said tube means for conducting fluid to said inflatable bag.
Claim 12
Dependent Claim
71 words
An apparatus according to claim 8, wherein said inflatable bag comprises two generally radially extEnding end walls and a generally cylindrical surface extending therebetween; and whereby the outer periphery of said end walls extend beyond the peripheral extent of a body perforation and said cylindrical surface is operable to engage flush against an irregular surface of the marginal edges defining the perforation in response to the inflation of said inflatable bag.
Claim 13
Dependent Claim
15 words
An apparatus according to claim 9, wherein said hand pump means comprises an elastomeric bulb.
Claim 14
Dependent Claim
33 words
An apparatus according to claim 11, wherein each said one-way valve comprises two radially extending end walls having axially aligned apertures; and a valve disc is spring biased against one of said apertures.
Claim 15
Dependent Claim
39 words
An apparatus according to claim 11, wherein a second one-way valve means is releasably engaged within said first portion of said catheter; and whereby said elastomeric bulb may be converted from a suction forming to a pressure forming means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |