# US 11,911,053 B2 · Stone fragment capture systems for lithotripsy systems

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- Number: US 11,911,053 B2
- Document ID: US11911053B2
- Status: Granted
- Kind: B2
- Application number: 17/400,499
- Filed: 2021-08-12
- Published: 2022-02-17
- Granted: 2024-02-27
- Earliest claimed: 2020-08-14
- Assignees: Gyrus ACMI, Inc.
- Applicants: Gyrus Acmi, Inc.
- Inventors: Charles Baker; David Bloem; Richard M. Braga; Arthur J. Bertelson; Brian Schneider
- Web page: https://patentgrep.com/patent/US11911053B2

## CPC

- A61B 17/22: Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B 17/22012: {in direct contact with, or very close to, the obstruction or concrement (for removing obstructions in blood vessels by laser A61B18/245)}
- A61B 17/320758: {with a rotating cutting instrument, e.g. motor driven (A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002)}
- A61M 1/60: {Containers for suction drainage, adapted to be used with an external suction source (containers not adapted for subjection to vacuum A61M1/69)}
- A61M 1/79: {Filters for solid matter (specially adapted for dental use A61C17/065)}
- A61M 39/06: Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M 39/12: for joining a flexible tube to a rigid attachment
- A61B 2017/0034: {adapted to be inserted through a working channel of an endoscope}
- A61B 2017/22011: {Combined types of vibration, e.g. ultrasonic and electrohydraulic}
- A61B 2017/22014: {the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire}
- A61B 2017/22025: {applying a shock wave (A61B2017/22091 takes precedence)}
- A61B 2017/22079: {with suction of debris}
- A61B 2217/005: with suction drainage system
- A61M 2039/0666: {Flap-valve}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

A lithotripsy device can comprise a handpiece, a lithotripsy probe extending from the handpiece, an energization source configured to deliver an energy to a distal end of the lithotripsy probe, a suction passage extending from the distal end of the probe and through the handpiece, and a capture device comprising a container comprising a storage space, an entry port configured to couple to the handpiece at the suction passage, and an exit port, and a capture element connected to the container and configured to facilitate capture of stone fragments within the storage space. A method can comprise fragmenting stones with a lithotripsy device, drawing a vacuum through the lithotripsy device to pull stone fragments and waste fluid therethrough, pulling the vacuum through a stone capture device connected to the lithotripsy device, depositing stone fragments within the stone capture device using a capture element, and drawing the vacuum through the device.

## Claims

### Claim 1

A lithotripsy device comprising:
a handpiece;
a lithotripsy probe extending from the handpiece;
an energization source coupled to the handpiece configured to deliver an energy to a distal end of the lithotripsy probe;
a suction passage extending from the distal end of the lithotripsy probe and through the handpiece;
a capture device coupled to the handpiece, the capture device comprising:
a container comprising:
a wall defining a storage space within the container;
an entry port configured to couple to the handpiece at the suction passage; and
an exit port; and
a capture element connected to the container and configured to facilitate capture of stone fragments within the storage space, wherein the capture element is configured to allow stone fragments of a first size to pass therethrough and stone fragments larger than the first size to be collected in the container;
a first sealing element disposed at the entry port;
a second sealing element located at an outlet of the container; and
a chassis, wherein the container is removable from the chassis and the second sealing element is located at the exit port, wherein the chassis comprises:
a seat for receiving the container; and
a bypass suction passage circumventing the seat, the bypass suction passage extending between the first sealing element and the second sealing element:
wherein a first fluid path is formed through the first sealing element, the bypass suction passage and the second sealing element when the container is not positioned in the seat; and
wherein a second fluid path is formed through the first sealing element, the container and the second sealing element when the container is positioned in the seat.

### Claim 2 (depends on 1)

The lithotripsy device of claim 1, wherein the capture element comprises at least one of (i) a filter comprising a variable sized opening disposed in the container and extending across the exit port, (ii) a baffle disposed between the entry port and the exit port configured to deflect stone fragments away from the exit port or (iii) an elongate tube extending from the entry port to direct stone fragments toward the capture element within the container.

### Claim 3 (depends on 2)

The lithotripsy device of claim 2, wherein the container comprises a first portion having the entry port and a second portion having the exit port, wherein the first and second portions are separable to be able to access the storage space.

### Claim 4 (depends on 3)

The lithotripsy device of claim 3, wherein the capture element comprises the filter and the filter is coupled to the second portion.

### Claim 5 (depends on 2)

The lithotripsy device of claim 2, wherein the capture element comprises the filter and the filter is manually adjustable to change a size of the variable sized opening passing through the filter.

### Claim 6 (depends on 2)

The lithotripsy device of claim 2, wherein the capture element comprises the filter and the filter comprises at least one of (i) an iris valve having a variable diameter orifice defining the variable sized opening or (ii) first and second mesh screens, the first mesh screen being rotatably adjustable relative to the second mesh screen to produce a plurality of variable sized openings.

### Claim 7 (depends on 1)

The lithotripsy device of claim 1, wherein the first sealing element comprises a flapper valve or a sliding valve.

### Claim 8 (depends on 1)

The lithotripsy device of claim 1, wherein the first sealing element is biased to a closed position.

### Claim 9 (depends on 1)

The lithotripsy device of claim 1, further comprising a third sealing element, wherein the third sealing element comprises a vacuum port configured to allow an instrument to be inserted into the handpiece of the lithotripsy probe while the capture device is coupled to the handpiece.

### Claim 10 (depends on 9)

The lithotripsy device of claim 9, wherein the vacuum port is axially aligned with at least one of (i) the suction passage extending from the distal end of the lithotripsy probe and through the handpiece or (ii) the entry port of the container, the exit port of the container being offset from the vacuum port and the entry port.

### Claim 11 (depends on 9)

The lithotripsy device of claim 9, wherein the vacuum port comprises a self-sealing valve.

### Claim 12 (depends on 1)

The lithotripsy device of claim 1, further comprising a tube connecting the entry port with the handpiece.

### Claim 13 (depends on 1)

The lithotripsy device of claim 1, further comprising a waste container fluidly coupled to the exit port to collect fluid and stone fragments passing through the capture device.

### Claim 14 (depends on 1)

The lithotripsy device of claim 1, wherein the container includes first and second actuators to toggle the first and second sealing elements, respectively.

### Claim 15 (depends on 1)

The lithotripsy device of claim 1, wherein the first and second sealing elements are mounted to the container such that the container can be removed from the chassis with the entry port and the exit port sealed.

### Claim 16

A lithotripsy device comprising:
a handpiece;
a lithotripsy probe extending from the handpiece;
an energization source coupled to the handpiece configured to deliver an energy to a distal end of the lithotripsy probe;
a suction passage extending from the distal end of the lithotripsy probe and through the handpiece;
a capture device coupled to the handpiece, the capture device comprising:
a container comprising:
a wall defining a storage space within the container;
an entry port configured to couple to the handpiece at the suction passage; and
an exit port; and
a capture element connected to the container and configured to facilitate capture of stone fragments within the storage space, wherein the capture element is configured to allow stone fragments of a first size to pass therethrough and stone fragments larger than the first size to be collected in the container;
a first sealing element disposed at the entry port; and
a second sealing element located at an outlet of the container;
wherein the second sealing element comprises a vacuum port configured to allow an instrument to be inserted into the handpiece of the lithotripsy probe while the capture device is coupled to the handpiece.

### Claim 17 (depends on 16)

The lithotripsy device of claim 16, wherein the vacuum port is axially aligned with at least one of (i) the suction passage extending from the distal end of the lithotripsy probe and through the handpiece or (ii) the entry port of the container, the exit port of the container being offset from the vacuum port and the entry port.

### Claim 18 (depends on 16)

The lithotripsy device of claim 16, wherein the vacuum port comprises a self-sealing valve.

### Claim 19 (depends on 16)

The lithotripsy device of claim 16, further comprising:
a tube connecting the entry port with the handpiece; and
a waste container fluidly coupled to the exit port to collect fluid and stone fragments passing through the capture device.

### Claim 20 (depends on 16)

The lithotripsy device of claim 16, wherein the capture element comprises at least one of (i) a filter comprising a variable sized opening disposed in the container and extending across the exit port, (ii) a baffle disposed between the entry port and the exit port configured to deflect stone fragments away from the exit port or (iii) an elongate tube extending from the entry port to direct stone fragments toward the capture element within the container.

### Claim 21 (depends on 20)

The lithotripsy device of claim 20, wherein the container comprises a first portion having the entry port and a second portion having the exit port, wherein the first and second portions are separable to be able to access the storage space.

### Claim 22 (depends on 21)

The lithotripsy device of claim 21, wherein the capture element comprises the filter and the filter is coupled to the second portion.

### Claim 23 (depends on 20)

The lithotripsy device of claim 20, wherein the capture element comprises the filter and the filter comprises at least one of (i) an iris valve having a variable diameter orifice defining the variable sized opening or (ii) first and second mesh screens, the first mesh screen being rotatably adjustable relative to the second mesh screen to produce a plurality of variable sized openings.

### Claim 24 (depends on 16)

The lithotripsy device of claim 16, wherein the first sealing element comprises a flapper valve or a sliding valve and the first sealing element is biased to a closed position.
