Wedge operated retainer device and methods
This invention relates generally to retainers and methods of using retainers. In particular, the invention relates to a suture retainer adapted for application on a subject by use of an introducing device, such as a catheter. The suture retainer comprises two elements, such as wedge-shaped or substantially wedge-shaped elements, that are positioned such that the elements are juxtaposed with respect to each other. In operation the two elements are engaged by a spring which forces the two elements into contact. Additionally, a housing can be provided.
1. A suture retainer comprising:
a unitary first retainer body member extending from a first proximal end to a first distal end, the first retainer body member comprising:
a first flange forming a majority of the first distal end;
a first channel formed through the first flange; and
a first suture contact surface extending proximally from the first channel;
a unitary second retainer body member extending from a second proximal end to a second distal end the second retainer body member comprising:
a second flange forming a majority of the second proximal end;
a second channel formed through the second flange; and
a second suture contact surface extending distally from the second channel, wherein the first suture contact surface and the second suture contact surface define a suture contact axis; and
a unitary coiled biasing member surrounding at least a majority of the first and second suture contact surfaces and extending between the first flange and the second flange, the coiled biasing member being adapted to bias the first and second contact surfaces toward each other,
wherein the first proximal end is slidably disposed in the second channel and the second distal end is slidably disposed in the first channel,
and further wherein the suture retainer has a first position in which the suture contact surfaces are at a first distance from each other and a second position in which the suture contact surfaces are at a second distance from each other, the suture retainer being adapted to retain a suture between the first and second suture contact surfaces when in the first position, the first and second channels forming a movement guide permitting relative movement between the first and second contact surfaces along a movement axis not perpendicular to the suture contact axis.
2. The suture retainer of claim 1 wherein the coiled biasing member is formed about an axis situated unorthoganally to the suture contact axis.
3. The suture retainer of claim 1 further comprising a housing in which the first and second body members are disposed.
4. The suture retainer of claim 1 further comprising a housing surrounding the coiled biasing member.
5. The suture retainer of claim 1 wherein the coiled biasing member is adapted to be moved to a position permitting rotational movement between the first and second body members.
6. The suture retainer of claim 5 wherein the coiled biasing member is adapted to be moved to a position permitting rotational movement between the first and second body members to permit assembly or disassembly of the suture retainer.
7. The suture retainer of claim 6 wherein the first body member comprises a notch further permitting rotational movement between the first and second body members.
8. The suture retainer of claim 1 further comprising a threaded tool engagement member extending from the proximal end of the first retainer body member.
9. The suture retainer of claim 8 further including a second tool engagement surface provided on the second proximal end adapted to engage a second tool with the second retainer body member.
10. The suture retainer of claim 1 further comprising a protuberance extending from the first contact surface.
11. The suture retainer of claim 10 wherein the protuberance comprises a tooth.
12. The suture retainer of claim 1 further comprising third and fourth substantially parallel suture contact surfaces defining a second suture contact axis, the third and fourth suture contact surfaces being at a first distance from each other to retain a suture when the suture retainer is in the first position and at a second distance from each other when the suture retainer is in the second position.
13. The suture retainer of claim 12 further comprising a ridge separating the first and third suture contact surfaces.
14. A suture retainer according to claim 1 , wherein the first suture contact surface and the second suture contact surface are substantially planar.