# US 2025/0375348 A1 · Adjustable-size backboard for a mechanical cpr device

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- Number: US 2025/0375348 A1
- Document ID: US20250375348A1
- Status: Published application
- Kind: A1
- Application number: 19/300,522
- Filed: 2025-08-14
- Published: 2025-12-11
- Earliest claimed: 2020-10-29
- Assignees: Physio-Control, Inc.
- Applicants: Physio-Control, Inc.
- Inventors: Marcus Ehrstedt; Thomas Falk; Anders Nilsson; David Linville; Eric Sandrup; Jonas Lagerstrom; Sara Lindroth
- Web page: https://patentgrep.com/patent/US20250375348A1

## CPC

- A61H 31/004: {Heart stimulation}
- A61H 31/008: {Supine patient supports or bases, e.g. improving air-way access to the lungs}
- A61H 31/006: {Power driven}
- A61H 2201/0107: modular
- A61H 2201/0157: portable
- A61H 2201/0161: Size reducing arrangements when not in use, for stowing or transport
- A61H 2201/0192: Specific means for adjusting dimensions
- A61H 2201/0196: automatically adjusted according to anthropometric data of the user
- A61H 2201/1607: Holding means therefor
- A61H 2201/1626: Holding means therefor
- A61H 2201/5007: computer controlled
- A61H 2201/5097: wireless
- 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

An adjustable-size backboard for a chest compressions device having a first connector, a second connector, and an adjustable elongated portion extending between the first connector and the second connector. The first connector is structured to attach to a first leg of a chest compression device. The second connector is structured to attach to a second leg of the chest compression device. The adjustable elongated portion includes a first portion that extends from the first connector and a second portion. The second portion is between the first connector and the second connector and is structured to slide relative to the first portion.

## Claims

### Claim 1

An adjustable-size backboard for a chest compression device, the adjustable-size backboard comprising:
a first connector structured to attach to a first leg of a chest compression device;
a second connector structured to attach to a second leg of the chest compression device; and
an adjustable elongated portion extending between the first connector and the second connector, the adjustable elongated portion including a first portion extending from the first connector and a second portion between the first connector and the second connector and structured to slide relative to the first portion.

### Claim 2 (depends on 1)

The adjustable-size backboard of claim 1, in which the second portion is structured to slide within the first portion.

### Claim 3 (depends on 2)

The adjustable-size backboard of claim 2, wherein the first portion having a compartment for receiving the second portion.

### Claim 4 (depends on 1)

The adjustable-size backboard of claim 1, in which the second portion extends from the second connector.

### Claim 5 (depends on 1)

The adjustable-size backboard of claim 1, the adjustable elongated portion further including a locking mechanism for selectively locking and unlocking the second portion relative to the first portion.

### Claim 6 (depends on 5)

The adjustable-size backboard of claim 5, the locking mechanism including a clamp configured to enter one or more recesses on either the first portion or the second portion to lock the second portion relative to the first portion and to exit the one or more recesses to unlock the second portion relative to the first portion.

### Claim 7

A mechanical cardio-pulmonary resuscitation (CPR) device, comprising:
a compression mechanism configured to perform successive CPR compressions to a chest of a patient, the compression mechanism comprising a piston, and a driver coupled to the piston and configured to extend the piston toward the chest of the patient and to retract the piston away from the chest of the patient;
support legs configured to support the chest compression mechanism at a distance from the chest of the patient; and
an adjustable-size backboard configured to be placed underneath the patient,, the adjustable-size backboard comprising:
a first connector structured to attach the adjustable-size backboard to a first leg of the support legs,
a second connector structured to attach the adjustable-size backboard to a second leg of the support legs, and
an adjustable elongated portion extending between the first connector and the second connector, the adjustable elongated portion including a first portion extending from the first connector and a second portion between the first connector and the second connector and structured to slide relative to the first portion.

### Claim 8 (depends on 7)

The mechanical CPR device of claim 7, in which the second portion is structured to slide within the first portion.

### Claim 9 (depends on 8)

The mechanical CPR device of claim 8, wherein the first portion having a compartment for receiving the second portion.

### Claim 10 (depends on 7)

The mechanical CPR device of claim 7, in which the second portion extends from the second connector.

### Claim 11 (depends on 7)

The mechanical CPR device of claim 7, the adjustable elongated portion further including a locking mechanism for selectively locking and unlocking the second portion relative to the first portion.

### Claim 12 (depends on 11)

The mechanical CPR device of claim 11, the locking mechanism including a clamp configured to enter one or more recesses on either the first portion or the second portion to lock the second portion relative to the first portion and to exit the one or more recesses to unlock the second portion relative to the first portion.