# US 12,213,842 B2 · Apparatus for preventing device deployment failure

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- Number: US 12,213,842 B2
- Document ID: US12213842B2
- Status: Granted
- Kind: B2
- Application number: 18/188,761
- Filed: 2023-03-23
- Published: 2023-07-13
- Granted: 2025-02-04
- Earliest claimed: 2020-02-21
- Assignees: Teleflex Life Sciences Limited
- Applicants: Teleflex Life Sciences LLC
- Inventors: Kevin Alexander Lessard; Christopher Zaler; Jolene Cutts; Alexander Charles Gordon; Maheshwara Rao; Mitchell C. Barham
- Web page: https://patentgrep.com/patent/US12213842B2

## CPC

- A61B 17/320016: {Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes (A61B10/0233, A61B17/29, A61B17/3207 take precedence)}
- A61B 90/03: {Automatic limiting or abutting means, e.g. for safety}
- A61B 17/00234: {for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)}
- A61B 17/0401: {Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors (A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811)}
- A61B 17/0469: {Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery}
- A61B 17/0482: {Needle or suture guides (guides for drills, pins or wire A61B17/17; guides for puncturing needles A61B17/3403)}
- A61B 17/06: Needles {; Sutures; Needle-suture combinations}; Holders or packages for needles or suture materials
- A61B 17/3415: {for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters (A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06)}
- A61B 17/3468: {for implanting or removing devices, e.g. prostheses, implants, seeds, wires (devices for implanting seeds A61M37/0069)}
- A61B 90/08: {Accessories or related features not otherwise provided for}
- A61B 17/29: Forceps for use in minimally invasive surgery
- A61B 18/14: Probes or electrodes therefor
- A61B 2017/00274: {Prostate operation, e.g. prostatectomy, turp, bhp treatment}
- A61B 2017/00407: {Ratchet means}
- A61B 2017/0409: {Instruments for applying suture anchors}
- A61B 2034/301: {for introducing or steering flexible instruments inserted into the body, e.g. catheters or endoscopes}
- A61B 2090/034: {abutting on parts of the device itself}
- A61B 2090/0807: {Indication means}
- A61B 2090/0811: {for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

An apparatus for preventing deployment failure or damage of a movable portion of a treatment device via a force limiting element in the treatment device.

## Claims

### Claim 1

An apparatus for manipulating tissue within a subject to treat a medical condition, the apparatus comprising:
a first movable assembly coupled to a needle;
a second movable assembly coupled to a suturing component, wherein the first movable assembly and the second movable assembly are configured to move relative to each other;
a force limiting element coupled to the second movable assembly and a proximal portion of the suturing component, wherein the force limiting element is configured to maintain a position of the second movable assembly relative to the first movable assembly; and
an implant configured for deployment within the tissue, the implant comprising one or more anchor members connected to a tensioning element.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the suturing component comprises an elongate tubular member defining an inner lumen configured to accommodate a suture.

### Claim 3 (depends on 1)

The apparatus of claim 1, wherein the first movable assembly is configured to move proximally relative to the second movable assembly.

### Claim 4 (depends on 1)

The apparatus of claim 1, wherein the force limiting element comprises a spring.

### Claim 5 (depends on 4)

The apparatus of claim 4, wherein a portion of the suturing component is configured to extend through a lumen defined by coils of the spring.

### Claim 6 (depends on 4)

The apparatus of claim 4, wherein the spring is a tension spring configured to extend in response to an increase in frictional force received at a distal end of the needle.

### Claim 7 (depends on 1)

The apparatus of claim 1, wherein the force limiting element comprises a latch configured to reversibly couple with a complementary notch defined by the second movable assembly.

### Claim 8 (depends on 7)

The apparatus of claim 7, wherein the latch is configured to disengage from the notch in response to an increase in frictional force received at a distal end of the needle.

### Claim 9 (depends on 1)

The apparatus of claim 1, wherein manipulating comprises retracting, lifting, compressing, displacing, approximating, supporting, remodeling, repositioning, ablating, or altering at least a portion of the tissue.

### Claim 10 (depends on 1)

The apparatus of claim 1, wherein the tissue comprises a prostate gland.

### Claim 11 (depends on 1)

The apparatus of claim 1, wherein a portion of the suturing component extends through a passage defined by the second movable assembly.

### Claim 12 (depends on 11)

The apparatus of claim 11, further comprising a friction element configured to conditionally prevent the suturing component from moving proximally through the passage.

### Claim 13 (depends on 12)

The apparatus of claim 12, wherein a cross section of the suturing component is greatest at the friction element.

### Claim 14

A cartridge for delivering an implant, comprising:
a housing;
a movable assembly positioned within the housing and coupled to a suturing component, the suturing component comprising a suture and an elongate tubular member defining an inner lumen configured to accommodate the suture, wherein the movable assembly is configured to move relative to the housing; and
a force limiting element coupled to the movable assembly and a proximal portion of the suturing component, the force limiting element configured to absorb frictional forces received at a distal portion of the suturing component during delivery of the implant to a tissue.

### Claim 15 (depends on 14)

The cartridge of claim 14, wherein the force limiting element comprises a latch configured to reversibly couple with a complementary notch defined by the movable assembly.

### Claim 16 (depends on 14)

The cartridge of claim 14, wherein the force limiting element comprises a spring.

### Claim 17 (depends on 14)

The cartridge of claim 14, further comprising a needle and an elongate assembly, wherein the needle is configured to slide longitudinally through the elongate assembly during delivery of the implant.

### Claim 18

An apparatus for manipulating tissue within a subject to treat a medical condition, the apparatus comprising:
a first movable assembly coupled to a needle;
a second movable assembly coupled to a suturing component, wherein the first movable assembly and the second movable assembly are configured to move relative to each other;
a force limiting element coupled to the second movable assembly and a proximal portion of the suturing component, wherein the force limiting element is configured to maintain a position of the second movable assembly relative to the first movable assembly, wherein the force limiting element comprises a spring, and a portion of the suturing component is configured to extend through a lumen defined by coils of the spring.
