Extensible internal bolster for a medical device
First Claim
1. A medical device comprising:
- a tubular body;
at least two bolster arms, each including a first end hingedly connected to a distal end of the tubular body and a free second end, wherein the at least two bolster arms are selectively deployable between a first position wherein the at least two bolster arms are substantially in-line with an axis of the medical device and a second position wherein the at least two bolster arms are substantially deflected from the axis of the medical device to enable securement of the medical device within a patient'"'"'s body;
webbing disposed between adjacent bolster arms;
a plunger slidable within the tubular body to move the bolster arms between the first position and the second position; and
a locking mechanism configured to lock axial movement of the plunger relative to the tubular body.
0 Assignments
0 Petitions
Accused Products
Abstract
An internal bolster for use securing a medical device, such as a feeding tube, within a body of a patient is disclosed. In one embodiment, a feeding tube includes an internal bolster, comprising one or more bolster arms that each include a first end hingedly connected to a distal end of the medical device and a free second end. The bolster arms are selectively deployable between a first position wherein the bolster arms are substantially in-line with an axis of feeding tube, and a second position wherein the bolster arms are substantially deflected from the axis of the feeding tube to enable securement of the feeding tube within a stoma or other opening defined in the body. Various means for selectively moving the bolster arms between the first and second positions are disclosed. Related methods of use are also disclosed.
-
Citations
21 Claims
-
1. A medical device comprising:
-
a tubular body; at least two bolster arms, each including a first end hingedly connected to a distal end of the tubular body and a free second end, wherein the at least two bolster arms are selectively deployable between a first position wherein the at least two bolster arms are substantially in-line with an axis of the medical device and a second position wherein the at least two bolster arms are substantially deflected from the axis of the medical device to enable securement of the medical device within a patient'"'"'s body; webbing disposed between adjacent bolster arms; a plunger slidable within the tubular body to move the bolster arms between the first position and the second position; and a locking mechanism configured to lock axial movement of the plunger relative to the tubular body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method, comprising:
-
providing a medical device comprising; a tubular body; a first bolster arm hingedly connected to a distal end of the tubular body; a second bolster arm hingedly connected to the distal end of the tubular body; a plunger slidable within the tubular body to move the first bolster arm and the second bolster arm between a first closed configuration in which the first bolster arm and the second bolster arm are positioned close together to a second open configuration in which the first bolster arm and the second bolster arm are spaced apart; and a locking mechanism configured to lock axial movement of the plunger relative to the tubular body; positioning the medical device in a patient'"'"'s body through a stoma, a distal portion of the medical device positioned inside the patient'"'"'s body, wherein the positioning is performed while the first bolster arm and the second bolster arm are in the first closed configuration; deploying the first bolster arm and the second bolster arm to the second open configuration to secure the distal portion of the medical device within the patient'"'"'s body; and locking the locking mechanism such that the plunger is locked in a position that holds the first bolster arm and the second bolster arm in the second open configuration. - View Dependent Claims (15, 16, 17, 18)
-
-
19. A medical device comprising:
-
a tubular body; at least two bolster arms, each including a first end hingedly connected to a distal end of the tubular body and a free second end, wherein the at least two bolster arms are selectively deployable between a first position wherein the at least two bolster arms are substantially in-line with an axis of the medical device and a second position wherein the at least two bolster arms are substantially deflected from the axis of the medical device to enable securement of the medical device within a patient'"'"'s body; a plunger slidable within the tubular body to move the bolster arms between the first position and the second position, the plunger comprising; a central channel configured as a feeding channel through which a patient may be fed; and an engagement surface for deploying the at least two bolster arms from the first position to the second position, the engagement surface including a radially extending annular lip proximate a distal end of the plunger, wherein the plunger is positioned such that the first end of each of the at least two bolster arms is between the annular lip and an O-ring disposed about the medical device in the second position; and a locking mechanism configured to lock axial movement of the plunger relative to the tubular body.
-
-
20. A medical device comprising:
-
a tubular body; a reinforcing collar disposed radially about at least a portion of a distal end of the tubular body; at least two bolster arms, each including a first end hingedly connected to the distal end of the tubular body and a free second end, wherein the at least two bolster arms are selectively deployable between a first position wherein the at least two bolster arms are substantially in-line with an axis of the medical device and a second position wherein the at least two bolster arms are substantially deflected from the axis of the medical device to enable securement of the medical device within a patient'"'"'s body; a plurality of spines, each of the at least two bolster arms including at least one spine of the plurality of spines; a plunger slidable within the tubular body to move the bolster arms between the first position and the second position; and a locking mechanism configured to lock axial movement of the plunger relative to the tubular body.
-
-
21. A medical device comprising:
-
a tubular body; at least two bolster arms, each including a first end hingedly connected to a distal end of the tubular body and a free second end, wherein the at least two bolster arms are selectively deployable between a first position wherein the at least two bolster arms are substantially in-line with an axis of the medical device and a second position wherein the at least two bolster arms are substantially deflected from the axis of the medical device to enable securement of the medical device within a patient'"'"'s body; at least one elongate wire member interconnecting each of the at least two bolster arms with a movable trigger external to the patient'"'"'s body, wherein movement of the trigger causes the wire member to reversibly deploy the at least two bolster arms from the first position to the second position; and a locking mechanism configured to lock axial movement of the plunger relative to the tubular body.
-
Specification