Grasping apparatuses for holding needles and related methods
This disclosure includes needle holders and related methods. Some holders use or include an elongated handle having a proximal portion and a distal portion, a first jaw member coupled to the distal portion of the handle, a second jaw member pivotally coupled to the first jaw member, and a lever pivotally coupled to the handle and coupled to the second jaw member such that the lever can be actuated by a user's thumb to selectively open and close the jaw members. In some holders, the handle extends proximally beyond the lever such that the lever can be actuated by the user's thumb to selectively open and close the jaw members while the handle is grasped within the user's hand. In some holders, the handle is defined by an elongated housing defining an interior volume configured to receive at least a portion of the lever when the jaw members are closed.
1. A needle holder comprising:
an elongated handle having a proximal portion and a distal portion, the proximal portion defining a gripping surface and having a length and a width, and where the gripping surface defines a cross-sectional perimeter of the proximal portion of the elongated handle;
a first jaw member coupled to the distal portion of the handle;
a second jaw member pivotally coupled to the first jaw member along an axis that is parallel to the width of the proximal portion of the handle;
a lever pivotally coupled to the handle and coupled to the second jaw member, a proximal portion of the lever including a first protruding portion that extends proximally away from the first and second jaw members, and a second protruding portion that extends proximally away from the first and second jaw members, the first and second protruding portions spaced apart from each other to define a thumb recess that opens proximally away from the first and second jaw members, the thumb recess sized to receive a distal portion of a user's thumb; and
a releasable locking mechanism configured to selectively resist opening of the jaw members when the jaw members are closed, the releasable locking mechanism comprising a first lock portion coupled to the elongated handle, a second lock portion coupled to the lever, and a plurality of teeth, where a first portion of the plurality of teeth is coupled to the first lock portion and a second portion of the plurality of teeth is coupled to the second lock portion;
where the first lock portion is contained within the cross-sectional perimeter of the proximal portion of the elongated handle;
where, when the first and second jaws are closed, the handle extends proximally beyond the lever such that the lever can be actuated by a user's thumb, when the user's thumb extends toward the first and second jaw members, to selectively open and close the jaw members while the gripping surface of the handle is grasped within the user's hand; and
where, when the first and second jaws are closed, the width of the proximal portion of the handle along a majority of the length between the lever and a proximal end of the handle is larger than an average width of the handle between the most-proximal portion of the lever and the first jaw member.
2. The needle holder of claim 1 , where the handle extends proximally beyond the lever a distance of at least 5 centimeters (cm) when the jaw members are closed.
3. The needle holder of claim 1 , where the first jaw member is fixed relative to the handle.
4. The needle holder of claim 1 , where the second jaw member is fixed relative to the lever.
5. The needle holder of claim 1 , where the handle is ringless.