Medical devices and related methods

Patent metadata

Field	Value
Publication number	US-12490961-B2
Application number	US-202217729076-A
Country	US
Kind code	B2
Filing date	Apr 26, 2022
Priority date	Apr 28, 2021
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A medical device includes an operating member, a hub, and an end effector. The operating member includes an actuation portion. The hub includes a channel receiving the actuation portion of the operating member. The actuation portion of the operating member moves within the channel. The end effector is movable between a closed configuration and an open configuration. Distal extension of the operating member transitions the end effector to the open configuration, and proximal retraction of the operating member transitions the end effector to the closed configuration. The medical device is formed through an additive manufacturing process.

First claim

We claim:

1 . A medical device, comprising:
an operating member that includes an actuation portion; a hub that includes a channel receiving the actuation portion of the operating member, wherein the actuation portion of the operating member is movable within the channel; and an end effector, wherein the end effector is movable between a closed configuration and an open configuration, wherein the operating member is extendable distally to transition the end effector to the open configuration and extend the actuation portion, wherein the operating member is retractable proximally to transition the end effector to the closed configuration and retract the actuation portion, and wherein the medical device is formed through an additive manufacturing process, wherein the end effector includes a first arm and a second arm, wherein each of the first arm and the second arm includes a control portion that extends within the hub to interact with the actuation portion, wherein the control portions of the first and second arms each includes an extension surface and a retraction surface offset from the extension surface, wherein the hub includes indentations and the control portions include extensions within the indentations, to pivotably hold the control portions within the hub, wherein a distal portion of the actuation portion includes two prongs offset from each other, wherein each prong includes an extension face, a retraction face, an angled face, and an opening, wherein distal extension of the actuation portion is configured to (i) cause the extension face of one prong to contact the extension surface of one of the first and second arms and (ii) transition the one of the first and second arms to the open configuration, and wherein proximal retraction of the actuation portion is configured to (i) cause the retraction face of the one prong to contact the retraction surface of the other one of the first and second arms and (ii) transition the other one of the first and second arms to the closed configuration.

2 . The medical device of claim 1 , wherein the retraction surfaces of the first and second arms are positioned within the openings in the prongs in the open configuration.

3 . The medical device of claim 1 , wherein the operating member includes a ring portion, and wherein the hub includes a widened channel portion with proximal and distal stop surfaces that are configured to abut the ring portion to limit proximal and distal movement of the operating member.

4 . The medical device of claim 1 , wherein the operating member includes a threaded coupling portion configured to couple the medical device to a drive element.

5 . The medical device of claim 1 , wherein the medical device is formed of metal.

6 . The medical device of claim 1 , wherein the additive manufacturing process includes depositing successive layers of material on a build platform and selectively sintering portions of the layers to form the medical device.

7 . The medical device of claim 6 , wherein the selective sintering is performed with a laser source.

8 . The medical device of claim 1 , wherein the additive manufacturing process includes forming one or more support structures, and separating the one or more support structures from the medical device using a wire electrical discharge machining process.

9 . The medical device of claim 8 , wherein the medical device is exposed to one or more post-processing procedures after separation of the one or more support structures.

10 . The medical device of claim 1 , wherein the medical device is approximately 1 cm in length.

11 . A medical device, comprising:
an operating member including an actuation portion, wherein a distal portion of the actuation portion includes two prongs offset from each other, and wherein each prong includes an extension face and a retraction face; a hub that includes a channel receiving the actuation portion of the operating member, wherein the actuation portion of the operating member is movable within the channel; and a first arm and a second arm that are movable between a closed configuration and an open configuration, wherein each of the first arm and the second arm includes a control portion that extends within the hub to interact with the actuation portion of the operating member, and wherein the control portions of the first and second arms each includes an extension surface and a retraction surface offset from the extension surface, wherein the actuation portion is extendable distally to cause the extension face of one prong to contact the extension surface of one of the first and second arms and transition the one of the first and second arms to the open configuration, and wherein the actuation portion is retractable proximally to cause the retraction face of the one prong to contact the retraction surface of the other one of the first and second arms and transition the other one of the first and second arms to the closed configuration.

12 . The medical device of claim 11 , wherein each of the two prongs includes an opening, wherein the retraction surfaces of the first and second arms are positioned within openings in the prongs in the open configuration.

13 . The medical device of claim 11 , wherein the operating member includes a ring portion and a coupling portion configured to couple the medical device to a drive element, and wherein the hub includes a widened channel portion with proximal and distal stop surfaces that are configured to abut the ring portion to limit proximal and distal movement of the operating member.

14 . The medical device of claim 11 , wherein the medical device is formed of a metallic material via an additive manufacturing process.

15 . A method of operating a medical device, comprising:
delivering the medical device to a treatment site, wherein the medical device includes:
an operating member including an actuation portion, wherein a distal portion of the actuation portion includes two prongs offset from each other, and wherein each prong includes an extension face and a retraction face;
a hub that includes a channel receiving the actuation portion of the operating member, wherein the actuation portion of the operating member moves within the channel; and
a first arm and a second arm that are movable between a closed configuration and an open configuration, wherein each of the first arm and the second arm includes a control portion that extends within the hub to interact with the actuation portion, and wherein the control portions of the first and second arms each includes an extension surface and a retraction surface offset from the extension surface;
transitioning the first arm and the second arm to the open configuration, wherein transitioning the first arm and the second arm to the open configuration includes distally extending the operating member such that the extension face of one prong contacts the extension surface of one of the first and second arms and transitions the one of the first and second arms to the open configuration; and transitioning the first arm and the second arm to the closed configuration, wherein transitioning the first arm and the second arm to the closed configuration includes proximally retracting the operating member such that the retraction face of the one prong contacts the retraction surface of the other one of the first and second arms and transitions the other one of the first and second arms to the closed configuration.

Assignees

• Boston Scient Scimed Inc

Inventors

• Ryan Liam
• English James Michael
• Hannon Robert
• O'Rourke John
• Mirigian Mark David
• Scutti James J

Classifications

• Y02P10/25

  Process efficiency · CPC title

• A61B2017/2933

  camming or guiding means · CPC title

• A61B2017/2931

  with releasable head · CPC title

• A61B2017/00526

  Methods of manufacturing · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title