Suture sleeve with circumferential lead locking device

• US 5,746,722 A
• Filed: 02/05/1997
• Issued: 05/05/1998
• Est. Priority Date: 02/05/1997
• Status: Expired due to Term

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Gubbin, Douglas H., Pohndorf, Peter J.
• Primary Examiner(s): Kamm, William E.
• Assistant Examiner(s): EVANISKO, GEORGE ROBERT
• Application Number:
  US08/795,425
• Time in Patent Office: 454 Days
• Field of Search: 607/132, 607/119, 604/174, 604/175, 604/178, 604/179, 604/283
• US Class Current: 604/175
• CPC Class Codes: A61M 2025/028 having a mainly rigid support structure
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61N 1/057 Anchoring means; Means for fixing the head inside the heart
• CPC Class Codes: A61N 2001/0582 Suture sleeves

Abstract

A suture sleeve for facilitating the ligature of an implanted catheter or lead to a patient'"'"'s vein or underlying tissue having a longitudinal sleeve throughbore for receiving the lead body extending through a sleeve body and a movable locking member manually actuable between a locked and an unlocked position. The throughbore of the movable locking member is aligned with throughbores of the sleeve body, and the movable locking member and transverse channel are shaped to bias the movable locking member to the unlocked position. The locking member is movable laterally in a locking direction in a transverse channel extending laterally across the sleeve body with respect to the sleeve throughbore to a locked position that diminishes the movable locking member throughbore thereby compressing the lead body and applying a relatively uniform pressure in a band extending around its circumference, thereby minimizing lead body shear stresses. The locked position is maintained by engagement of mating fixed locking detents on the sleeve body and movable locking detents on the movable locking member. The locking member is unlocked by applying release force, preferably through the jaws of a forceps, against fixed rails on one side of the sleeve body transverse channel and against movable rails on the side of the locking member extending through the transverse channel on the other side of the sleeve body to release the locking detents and allow the locking member to move laterally in the channel to the unlocked position. When the locking member is in both the locked and the unlocked positions, the locking member throughbore is in substantial coaxial alignment with the longitudinal throughbores in the sleeve body, which are elongated in the transverse channel direction, thereby minimizing bending of the lead body in either position.

Claims

1. A suture sleeve adapted to secure a flexible, elongated structure having a predetermined outer diameter to a patient'"'"'s body tissue, comprising:

a sleeve body having a longitudinal throughbore dimensioned to fit over and receive said outer diameter of said elongated structure allowing relative movement of said sleeve body over said elongated structure, said sleeve body having a transverse channel intersecting said longitudinal throughbore;

a locking member movable within said transverse channel between an unlocked position and a locked position and having a longitudinal lock member throughbore having a throughbore diameter dimensioned to receive said outer diameter of said elongated structure in said locked and unlocked positions;

said locking member upon being moved by an applied locking force in a locking direction moving from said unlocked position wherein its throughbore diameter exceeds the predetermined outer diameter and allows relative movement of said locking member and said sleeve body over said elongated structure to said locked position wherein said locking member throughbore diameter is reduced substantially evenly about its circumference to less than said predetermined diameter, thereby exerting force relatively evenly around the outer surface of said elongated structure within said locking member throughbore to substantially increase frictional resistance against relative movement of the suture sleeve and the elongated structure; and

first and second collar pieces, each collar piece having a collar piece throughbore dimensioned to receive said elongated structure and affixed to one end of said sleeve body with the collar piece throughbore in substantial coaxial alignment with said sleeve body longitudinal throughbore, each of said collar pieces being made of a resilient material and being of a length dimension sufficient to reduce substantial bending of the elongated structure extending through the sleeve body throughbore.

2. A suture sleeve in accordance with claim 1, wherein said sleeve body comprises end sections and wherein said first and second collar pieces are fitted over said end sections of said sleeve body and are provided with at least one suture receiving groove formed therein adapted to receive a suture.

3. A suture sleeve in accordance with claim 1, wherein said transverse channel is shaped to exert compressive force on said locking member in said locked position to diminish said locking member throughbore diameter.

4. A suture sleeve adapted to secure a flexible, elongated structure having a predetermined outer diameter to a patient'"'"'s body tissue, comprising:

a sleeve body having a longitudinal throughbore dimensioned to fit over and receive said outer diameter of said elongated structure allowing relative movement of said sleeve body over said elongated structure, said sleeve body having a transverse channel intersecting said longitudinal throughbore;

a locking member movable within said transverse channel between an unlocked position and a locked position and having a longitudinal lock member throughbore having a throughbore diameter dimensioned to receive said outer diameter of said elongated structure in said locked and unlocked positions;

said locking member upon being moved by an applied locking force in a locking direction moving from said unlocked position wherein its throughbore diameter exceeds the predetermined outer diameter and allows relative movement of said locking member and said sleeve body over said elongated structure to said locked position wherein said locking member throughbore diameter is reduced substantially evenly about its circumference to less than said predetermined diameter, thereby exerting force relatively evenly around the outer surface of said elongated structure within said locking member throughbore to substantially increase frictional resistance against relative movement of the suture sleeve and the elongated structure, wherein said transverse channel is shaped to exert compressive force on said locking member in said locked position to diminish said locking member throughbore diameter and wherein;

said movable locking member has opposing walls and a plurality of movable locking elements formed in said opposing walls thereof; and

said transverse channel is formed with like dimensioned opposing walls and a like plurality of fixed locking elements formed therein adapted to be engaged by said plurality of movable locking elements in said locked position.

5. A suture sleeve adapted to secure a flexible, elongated structure having a predetermined outer diameter to a patient'"'"'s body tissue, comprising:

a sleeve body having a longitudinal throughbore dimensioned to fit over and receive said outer diameter of said elongated structure allowing relative movement of said sleeve body over said elongated structure, said sleeve body having a transverse channel intersecting said longitudinal throughbore;

a locking member movable within said transverse channel between an unlocked position and a locked position and having a longitudinal lock member throughbore having a throughbore diameter dimensioned to receive said outer diameter of said elongated structure in said locked and unlocked positions;

said locking member upon being moved by an applied locking force in a locking direction moving from said unlocked position wherein its throughbore diameter exceeds the predetermined outer diameter and allows relative movement of said locking member and said sleeve body over said elongated structure to said locked position wherein said locking member throughbore diameter is reduced substantially evenly about its circumference to less than said predetermined diameter thereby exerting force relatively evenly around the outer surface of said elongated structure within said locking member throughbore to substantially increase frictional resistance against relative movement of the suture sleeve and the elongated structure, wherein said transverse channel is shaped to exert compressive force on said locking member in said locked position to diminish said locking member throughbore diameter; and

wherein;

said transverse channel extends laterally across the longitudinal throughbore of said sleeve body and is bordered by spaced apart longitudinally extending sides and laterally extending ends having at least one fixed detent formed therein;

said locking member is formed with longitudinally extending sides and laterally extending ends and is sized to fit within said transverse channel, said laterally extending ends further comprising at least one movable locking detent disposed on at least one end of said locking member for engagement with said at least one fixed locking detent in said locking mechanism.

6. A suture sleeve adapted to secure a flexible, elongated structure having a predetermined outer diameter to a patient'"'"'s body tissue, comprising:

a sleeve body having a longitudinal throughbore dimensioned to fit over and receive said outer diameter of said elongated structure allowing relative movement of said sleeve body over said elongated structure, said sleeve body having a transverse channel intersecting said longitudinal throughbore;

a locking member movable within said transverse channel between an unlocked position and a locked position and having a longitudinal lock member throughbore having a throughbore diameter dimensioned to receive said outer diameter of said elongated structure in said locked and unlocked positions;

said locking member upon being moved by an applied locking force in a locking direction moving from said unlocked position wherein its throughbore diameter exceeds the predetermined outer diameter and allows relative movement of said locking member and said sleeve body over said elongated structure to said locked position wherein said locking member throughbore diameter is reduced substantially evenly about its circumference to less than said predetermined diameter thereby exerting force relatively evenly around the outer surface of said elongated structure within said locking member throughbore to substantially increase frictional resistance against relative movement of the suture sleeve and the elongated structure, wherein said transverse channel is shaped to exert compressive force on said locking member in said locked position to diminish said locking member throughbore diameter; and

wherein;

said sleeve body is formed with said transverse channel extending from said transverse channel opening formed in an upper exterior surface of said sleeve body and to a further lower channel opening in a lower exterior surface of said sleeve body and is formed with first release means located adjacent the upper transverse channel opening against which a release force may be applied when said movable locking member is in the locked position without interference therewith; and

said movable locking member is formed with second release means positionable in relation to said lower transverse channel opening when said movable locking member is in said locked position against which said release force may be applied when said movable locking member is in the locked position without interference with said sleeve body.

7. A suture sleeve adapted to secure a flexible, elongated structure having a predetermined outer diameter to a patient'"'"'s body tissue, comprising:

a sleeve body having a longitudinal throughbore dimensioned to fit over and receive said outer diameter of said elongated structure allowing relative movement of said sleeve body over said elongated structure said sleeve body having a transverse channel intersecting said longitudinal throughbore;

a locking member movable within said transverse channel between an unlocked position and a locked position and having a longitudinal lock member throughbore having a throughbore diameter dimensioned to receive said outer diameter of said elongated structure in said locked and unlocked positions;

said locking member upon being moved by an applied locking force in a locking direction moving from said unlocked position wherein its throughbore diameter exceeds the predetermined outer diameter and allows relative movement of said locking member and said sleeve body over said elongated structure to said locked position wherein said locking member throughbore diameter is reduced substantially evenly about its circumference to less than said predetermined diameter thereby exerting force relatively evenly around the outer surface of said elongated structure within said locking member throughbore to substantially increase frictional resistance against relative movement of the suture sleeve and the elongated structure wherein said transverse channel is shaped to exert compressive force on said locking member in said locked position to diminish said locking member throughbore diameter; and

wherein;

said sleeve body is formed with upper and lower exterior surfaces and said transverse channel extending from said transverse channel opening formed in said upper exterior surface and to a further lower channel opening in said lower exterior surface and is formed with at least one upper rail adjacent the upper transverse channel opening against which a release force may be applied when said movable locking member is in the locked position; and

said movable locking member is formed with an upper member surface adapted to be recessed below said upper rail in said locked position and at least one lower rail adapted to extend through said lower transverse channel opening when said movable locking member is in said locked position, whereby said release force may be applied between said upper rail and said lower rail when said movable locking member is in the locked position to effect movement of said movable locking member in an unlocking direction with respect to said sleeve body.

8. A suture sleeve adapted to secure a flexible, elongated structure having a predetermined outer diameter to a patient'"'"'s body tissue, comprising:

a sleeve body having a longitudinal throughbore dimensioned to fit over and receive said outer diameter of said elongated structure allowing relative movement of said sleeve body over said elongated structure, said sleeve body having a transverse channel intersecting said longitudinal throughbore;

a locking member movable within said transverse channel between an unlocked position and a locked position and having a longitudinal lock member throughbore having a throughbore diameter dimensioned to receive said outer diameter of said elongated structure in said locked and unlocked positions;

said locking member upon being moved by an applied locking force in a locking direction moving from said unlocked position wherein its throughbore diameter exceeds the predetermined outer diameter and allows relative movement of said locking member and said sleeve body over said elongated structure to said locked position wherein said locking member throughbore diameter is reduced substantially evenly about its circumference to less than said predetermined diameter, thereby exerting force relatively evenly around the outer surface of said elongated structure within said locking member throughbore to substantially increase frictional resistance against relative movement of the suture sleeve and the elongated structure, wherein said transverse channel is shaped to exert compressive force on said locking member in said locked position to diminish said locking member throughbore diameter; and

wherein;

said sleeve body is formed with upper and lower opposed exterior surfaces and said transverse channel extending from said transverse channel opening formed in said upper exterior surface and to a further lower channel opening in said lower exterior surface and is formed with first and second elongated upper rails extending alongside said upper transverse channel opening against which a release force may be applied when said movable locking member is in the locked position; and

said movable locking member is formed with an upper surface shaped to be recessed below said upper rail in said locked position and first and second lower rails adapted to extend through said lower transverse channel opening when said movable locking member is in said locked position, whereby said release force may be applied between said first and second upper and lower rails when said movable locking member is in the locked position to effect movement of said movable locking member in an unlocking direction with respect to said sleeve body.

9. A suture sleeve adapted to secure a flexible, elongated structure having a predetermined outer diameter to a patient'"'"'s body tissue, comprising:

a sleeve body having a longitudinal throughbore dimensioned to fit over and receive said outer diameter of said elongated structure allowing relative movement of said sleeve body over said elongated structure, said sleeve body having a transverse channel intersecting said longitudinal throughbore;

a locking member movable within said transverse channel between an unlocked position and a locked position and having a longitudinal lock member throughbore having a throughbore diameter dimensioned to receive said outer diameter of said elongated structure in said locked and unlocked positions;

said locking member upon being moved by an applied locking force in a locking direction moving from said unlocked position wherein its throughbore diameter exceeds the predetermined outer diameter and allows relative movement of said locking member and said sleeve body over said elongated structure to said locked position wherein said locking member throughbore diameter is reduced substantially evenly about its circumference to less than said predetermined diameter, thereby exerting force relatively evenly around the outer surface of said elongated structure within said locking member throughbore to substantially increase frictional resistance against relative movement of the suture sleeve and the elongated structure, wherein;

said sleeve body is formed with said transverse channel extending from said transverse channel opening formed in an upper surface of said sleeve body and to a further lower channel opening in a lower surface of said sleeve body and is formed with first release means located adjacent the upper transverse channel opening against which a release force may be applied when said movable locking member is in the locked position without interference therewith; and

said movable locking member is formed with second release means positionable in relation to said lower transverse channel opening when said movable locking member is in said locked position against which said release force may be applied when said movable locking member is in the locked position without interference with said sleeve body.

10. A suture sleeve adapted to secure a flexible, elongated structure having a predetermined outer diameter to a patient'"'"'s body tissue, comprising:

a sleeve body having a longitudinal throughbore dimensioned to fit over and receive said outer diameter of said elongated structure allowing relative movement of said sleeve body over said elongated structure, said sleeve body having a transverse channel intersecting said longitudinal throughbore;

a locking member movable within said transverse channel between an unlocked position and a locked position and having a longitudinal lock member throughbore having a throughbore diameter dimensioned to receive said outer diameter of said elongated structure in said locked and unlocked positions;

said locking member upon being moved by an applied locking force in a locking direction moving from said unlocked position wherein its throughbore diameter exceeds the predetermined outer diameter and allows relative movement of said locking member and said sleeve body over said elongated structure to said locked position wherein said locking member throughbore diameter is reduced substantially evenly about its circumference to less than said predetermined diameter, thereby exerting force relatively evenly around the outer surface of said elongated structure within said locking member throughbore to substantially increase frictional resistance against relative movement of the suture sleeve and the elongated structure, wherein;

said sleeve body is formed with upper and lower surfaces and said transverse channel extending from said transverse channel opening formed in said upper surface of said sleeve body and to a further lower channel opening in said lower surface of said sleeve body and is formed with at least one upper rail adjacent the upper transverse channel opening against which a release force may be applied when said movable locking member is in the locked position; and

said movable locking member is formed with an upper surface adapted to be recessed below said at least one upper rail in said locked position and at least one lower rail adapted to extend through said lower transverse channel opening when said movable locking member is in said locked position, whereby said release force may be applied between said upper rail and said lower rail when said movable locking member is in the locked position to effect movement of said movable locking member in an unlocking direction with respect to said sleeve body.

11. A suture sleeve adapted to secure a flexible, elongated structure having a predetermined outer diameter to a patient'"'"'s body tissue, comprising:

a sleeve body having a longitudinal throughbore dimensioned to fit over and receive said outer diameter of said elongated structure allowing relative movement of said sleeve body over said elongated structure, said sleeve body having a transverse channel intersecting said longitudinal throughbore;

a locking member movable within said transverse channel between an unlocked position and a locked position and having a longitudinal lock member throughbore having a throughbore diameter dimensioned to receive said outer diameter of said elongated structure in said locked and unlocked positions.

said locking member upon being moved by an applied locking force in a locking direction moving from said unlocked position wherein its throughbore diameter exceeds the predetermined outer diameter and allows relative movement of said locking member and said sleeve body over said elongated structure to said locked position wherein said locking member throughbore diameter is reduced substantially evenly about its circumference to less than said predetermined diameter, thereby exerting force relatively evenly around the outer surface of said elongated structure within said locking member throughbore to substantially increase frictional resistance against relative movement of the suture sleeve and the elongated structure, wherein;

said sleeve body is formed with upper and lower surfaces and said transverse channel extending from said transverse channel opening formed in said upper surface of said sleeve body and to a further lower channel opening in said lower surface of said sleeve body and is formed with first and second elongated upper rails extending alongside said upper transverse channel opening against which a release force may be applied when said movable locking member is in the locked position; and

said movable locking member is formed with an upper surface shaped to be recessed below said upper rail in said locked position and first and second lower rails adapted to extend through said lower transverse channel opening when said movable locking member is in said locked position, whereby said release force may be applied between said first and second upper and lower rails when said movable locking member is in the locked position to effect movement of said movable locking member in an unlocking direction with respect to said sleeve body.

12. A suture sleeve adapted to secure a flexible, elongated structure having a predetermined outer diameter to a patient'"'"'s body tissue, comprising:

a sleeve body having a longitudinal throughbore dimensioned to fit over and receive said outer diameter of said elongated structure allowing relative movement of said sleeve body over said elongated structure, said sleeve body having a transverse channel intersecting said longitudinal throughbore;

a locking member movable within said transverse channel between an unlocked position and a locked position and having a longitudinal lock member throughbore having a throughbore diameter dimensioned to receive said outer diameter of said elongated structure in said locked and unlocked positions;

said locking member upon being moved by an applied locking force in a locking direction moving from said unlocked position wherein its throughbore diameter exceeds the predetermined outer diameter and allows relative movement of said locking member and said sleeve body over said elongated structure to said locked position wherein said locking member throughbore diameter is reduced substantially evenly about its circumference to less than said predetermined diameter, thereby exerting force relatively evenly around the outer surface of said elongated structure within said locking member throughbore to substantially increase frictional resistance against relative movement of the suture sleeve and the elongated structure, wherein;

said sleeve body is formed with upper and lower surfaces and separated by generally parallel side walls, said transverse channel extending from said transverse channel opening formed in said upper surface of said sleeve body and to a lower channel opening in said lower surface of said sleeve body and is bordered by channel end walls and side walls, wherein said channel side walls are formed with inwardly projecting lower, elongated sections such that said lower channel opening is narrower in width than the width of said upper channel opening; and

said movable locking member is formed with generally parallel side and end walls and upper and lower surfaces dimensioned to fit within said upper transverse channel opening and to be forced toward said lower channel opening when a locking force is applied thereto and with a longitudinally extending section therein extending through said lower surface to said locking member throughbore, thereby dividing said locking member into at least two sections extending from said upper surface thereof, such that in movement of said locking member to said locked position, said elongated sections exert compressive force against said two sections of said locking member to draw them together and diminish said locking member throughbore diameter.

13. A suture sleeve in accordance with claim 12, wherein:

said sleeve body is formed with first and second elongated upper rails extending alongside said upper transverse channel opening against which a release force may be applied when said movable locking member is in the locked position; and

said movable locking member is formed with an upper surface shaped to be recessed below said upper rail in said locked position and first and second lower rails adapted to extend through said lower transverse channel opening when said movable locking member is in said locked position, whereby said release force may be applied between said first and second upper and lower rails when said movable locking member is in the locked position to effect movement of said movable locking member in an unlocking direction with respect to said sleeve body.