US3717145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold pressure bandage
Assignee: Individual
•
Filing: 1971-05-03
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Granted: 1973-02-20
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Expires: 1991-05-03
Abstract
Abstract A cold bandage made of various sizes and shapes for application to various portions of the body of a patient, which patient may be either animal or human. The bandage includes outer enclosing means containing at least one bag of volatile refrigerant with an opening in that bag to enhance vaporization of the refrigerant. Where the outer enclosing means are in the form of an envelope, sealed gas tight, with at least one bag opening into the interior of that envelope, the bandage will become inflated by virtue of the refrigerant volatilizing and intimately conform to the portion of the body to which the bandage is applied, thus providing both reduced temperature and pressure. The bandage is highly desirable for use to relieve a traumatized area, reduce inflamatory edema and pain, rapidly decrease hemorrhage, reduce the possibility of infection, minimize tissue damage, and effectively treat burns, among many other applicatory uses.
Inventors
- 👤 W Berndt
- 👤 H Hardenbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:31
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/10; A61D; A61D9/00; A61F2007/0001; A61F2007/0054; A61F2007/0056; A61F2007/0058; A61F2007/0091; A61F2007/0092; A61F7/02; A61F2007/0244; A61F2007/0249; A61F2007/0268; Y; Y10; Y10S; Y10S128/00; Y10S128/20
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
62 words
In a cold bandage, a bag for holding a volatile refrigerant, an outer container for removably covering said bag comprising a sterile fabric wrapped around the bag a plurality of times with the ends of the wrapped fabric projecting freely beyond the bag, and said bag being of temperature insulating material and open at one end to facilitate volatilization of the refrigerant.
Claim 2
Dependent Claim
62 words
In a cold bandage, a bag for holding a volatile refrigerant, an outer container for removably covering said bag comprising a sterile fabric wrapped around the bag a plurality of times with the ends of the wrapped fabric projecting freely beyond the bag, and said bag being of temperature insulating material and open at one end to facilitate volatilization of the refrigerant.
Claim 3
Dependent Claim
62 words
In a cold bandage, a bag for holding a volatile refrigerant, an outer container for removably covering said bag comprising a sterile fabric wrapped around the bag a plurality of times with the ends of the wrapped fabric projecting freely beyond the bag, and said bag being of temperature insulating material and open at one end to facilitate volatilization of the refrigerant.
Claim 4
Dependent Claim
62 words
In a cold bandage, a bag for holding a volatile refrigerant, an outer container for removably covering said bag comprising a sterile fabric wrapped around the bag a plurality of times with the ends of the wrapped fabric projecting freely beyond the bag, and said bag being of temperature insulating material and open at one end to facilitate volatilization of the refrigerant.
Claim 5
Dependent Claim
25 words
The bandage of claim 1, wherein the material of which the bag is made comprises a sandwich laminate of felt, gas porous rubber, and felt.
Claim 6
Dependent Claim
29 words
The bandage of claim 1, wherein the material of which the bag is made comprises two layers of plastic film, one of which is embossed with trapped air bubbles.
Claim 7
Dependent Claim
54 words
In a cold bandage, an outer container of the compartmental envelope-type, a bag for holding a volatile refrigerant removably disposed in a compartment of said outer container, and said bag being of temperature insulating material and being open at one end to facilitate volatilization of the refrigerant, said compartment being inflatable by volatilizing refrigerant.
Claim 8
Dependent Claim
54 words
In a cold bandage, an outer container of the compartmental envelope-type, a bag for holding a volatile refrigerant removably disposed in a compartment of said outer container, and said bag being of temperature insulating material and being open at one end to facilitate volatilization of the refrigerant, said compartment being inflatable by volatilizing refrigerant.
Claim 9
Dependent Claim
33 words
The bandage of claim 4, wherein the compartment nearest the skin of a patient is open at the top, and including a sheet of relatively thick foam insulation selectively insertable in said compartment.
Claim 10
Dependent Claim
58 words
The bandage of claim 4, wherein the outer container has a plurality of compartments, and including pockets formed in said container each to receive a refrigerant bag, a gas-tight closure for at least one of said compartments, and at least one of said pockets being located in said closable compartment whereby the same is inflated by volatilizing refrigerant.
Claim 11
Dependent Claim
20 words
The bandage of claim 6, including a plurality of refrigerant bags of varying insulating properties selectively insertable in said pockets.
Claim 12
Dependent Claim
23 words
The bandage of claim 6, wherein the closure equipped compartment is farthest from the skin of a patient when the bandage is applied.
Claim 13
Dependent Claim
26 words
The bandage of claim 6, wherein the compartment nearest the skin of a patient is open at the top for the selective reception of added insulation.
Claim 14
Dependent Claim
46 words
The bandage of claim 6, shaped to fit over the back of a patient''s head and upper neck, and including hollow head strap means in open communication with the inflatable compartment whereby said head strap means are also inflated along with the inflation of said compartment.
Claim 15
Dependent Claim
43 words
The bandage of claim 6, shaped to fit over the back of a patient''s head and upper neck rearwardly of the medulla oblongata and extend forwardly on each side of the head sufficiently to overlie portions of the respective carotid artery and branches.
Claim 16
Dependent Claim
20 words
The bandage of claim 11, including head and neck strap means to maintain the bandage in position on a patient.
Claim 17
Dependent Claim
81 words
The bandage of claim 1, wherein said outer container comprises a plurality of sheets of material secured together at least along the bottom and up both sides of the container, a pair of adjacent sheets being connected by spaced vertical seams to form pockets each removably receiving a refrigerant bag, the front sheet and an inner sheet forming an inflatable compartment, gas-tight closure means affording access to said inflatable compartment, and at least one said pocket being in said inflatable compartment.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |