# US 11,304,869 B2 · Portable system for the prophylaxis of deep vein thrombosis

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,304,869 B2
- Document ID: US11304869B2
- Status: Granted
- Kind: B2
- Application number: 16/785,945
- Filed: 2020-02-10
- Published: 2020-08-13
- Granted: 2022-04-19
- Earliest claimed: 2019-02-13
- Assignees: Bio Compression Systems, Inc.
- Applicants: Bio Compression Systems, Inc.
- Inventors: Robert Freidenrich; Jonathan Ross
- Web page: https://patentgrep.com/patent/US11304869B2

## CPC

- A61H 1/00: Apparatus for passive exercising (A61H5/00 takes precedence); Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H 9/0092: {Cuffs therefor}
- A61H 2201/0103: inflatable
- A61H 2201/0157: portable
- A61H 2201/1207: with electric or magnetic drive
- A61H 2201/1409: Hydraulic or pneumatic means
- A61H 2201/165: Wearable interfaces
- A61H 2201/1688: disposable
- A61H 2201/169: Physical characteristics of the surface, e.g. material, relief, texture or indicia
- A61H 2201/501: connected to external computer devices or networks
- A61H 2201/5071: Pressure sensors
- A61H 2205/106: for the lower legs
- A61H 2209/00: Devices for avoiding blood stagnation, e.g. Deep Vein Thrombosis [DVT] devices
- A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N)

## Abstract

A kit is disclosed for facilitating the supply and return of a system for stimulating venous and arterial circulation in a patient to prevent deep vein thrombosis, which includes a left and right set of inflatable garment sleeves that are disposable, a pair a rechargeable battery powered pump assemblies for inflating the sleeves and that are reusable, a power supply adapter for recharging the pump assemblies and that is reusable, and a shipping carton for returning the pump assemblies and adapter to a supplier after the patient is ambulatory and the risks of deep vein thrombosis have ended.

## Claims

### Claim 1

A system for stimulating venous and arterial circulation in a patient to prevent deep vein thrombosis, comprising:
a) a first disposable garment sleeve configured to be wrapped around a left calf of the patient and having a compartmented air chamber formed in an interior surface thereof;
b) a second disposable garment sleeve configured to be wrapped around a right calf of the patient and having a compartmented air chamber formed in an interior surface thereof;
c) a first reusable pump assembly for pressurizing the air chamber in the first garment sleeve, wherein the first pump assembly includes a housing adapted to be detachably secured to an exterior surface of the first garment sleeve;
d) a second reusable pump assembly for pressurizing the air chamber in the second garment sleeve, wherein the second pump assembly includes a housing adapted to be detachably secured to an exterior surface of the second garment sleeve;
e) a dual cord power supply adapter for recharging a first rechargeable battery in the first pump assembly and a second rechargeable battery in the second pump assembly at the same time;
f) a tray having recesses for packaging the first and second pump assemblies and the dual cord power supply adapter together;
g) a shipping carton for enclosing the tray containing the first and second pump assemblies and the power supply adapter together and for returning the first and second pump assemblies and the power supply adapter to a supplier after the patient is ambulatory; and
h) a supply carton for initially delivering the first and second garment sleeves and the shipping carton enclosing the tray containing the first and second pump assemblies and the power supply adapter to the patient, wherein each of the pump assemblies includes an electronic compliance meter associated with a processor that stores and reports information on demand regarding a length of time each one of the pump assemblies was in use to allow the supplier to monitor and control an inventory of used pump assemblies that have been returned, wherein the compliance meter in each one of the pump assemblies generates an audible reporting code that includes successive series of sounds, wherein each of the successive series of sounds represents a corresponding ordinal place holder, which taken together indicates a number of hours that each one of the pump assemblies was used, so that a first one of the series of sounds represents a first numeral and a second one of the series of sounds represents a second numeral.

### Claim 2 (depends on 1)

A system as recited in claim 1, wherein the interior surface of each garment sleeve is fabricated from a non-woven polyester material.

### Claim 3 (depends on 1)

A system as recited in claim 1, wherein the exterior surface of each one of the garment sleeves is fabricated from a nylex fabric.

### Claim 4 (depends on 1)

A system as recited in claim 1, wherein each one of the pump assemblies has an alarm feature to indicate a low battery power condition.

### Claim 5 (depends on 4)

A system as recited in claim 4, wherein each one of the pump assemblies has a means to shut down the system at a critically low battery power to avoid battery damage.

### Claim 6 (depends on 1)

A system as recited in claim 1, wherein the processor in each one of the pump assemblies is programmed to command each one of the pump assemblies to inflate the air chamber in a respective garment sleeve to a preset pressure and the air chamber will deflate after a predetermined period of time.

### Claim 7 (depends on 6)

A system as recited in claim 6, wherein the processor in each one of the pump assemblies is programmed to command each one of the pump assemblies to inflate the air chamber in a respective garment sleeve to a preset pressure of 50 mm Hg+/−10 mm Hg and hold that pressure for 15 seconds, whereupon the solenoid valve will open to allow the air chamber to deflate and be without pressure for 45 seconds.

### Claim 8 (depends on 6)

A system as recited in claim 6, wherein each one of the pump assemblies has an alarm feature to indicate a low inflation pressure condition.

### Claim 9 (depends on 6)

A system as recited in claim 6, wherein each one of the pump assemblies has an alarm feature to indicate a high inflation pressure condition.

### Claim 10

A system for stimulating venous and arterial circulation in a patient to prevent deep vein thrombosis, comprising:
a) a first garment sleeve configured to be wrapped around a left calf of the patient and having an air chamber formed in an interior surface thereof;
b) a second garment sleeve configured to be wrapped around a right calf of the patient and having an air chamber formed in an interior surface thereof;
c) a first pump assembly for pressurizing the air chamber in the first garment sleeve; and
d) a second pump assembly for pressurizing the air chamber in the second garment sleeve, wherein each pump assembly includes an electronic compliance meter associated with a processor that stores and reports information on demand regarding a length of time each one of the pump assemblies was in use, wherein the compliance meter in each one of the pump assemblies generates an audible reporting code that includes successive series of sounds, wherein each of the successive series of sounds represents a corresponding ordinal place holder, which taken together indicates a number of hours each one of the pump assemblies was used, wherein a first series of sounds represents a first numeral in the number of hours the pump assembly was used and a second series of sounds represents a second numeral in the number of hours the pump assembly was used.