Appliance for storing, distributing and placing surgical fasteners

• US 20060122636A1
• Filed: 09/30/2005
• Published: 06/08/2006
• Est. Priority Date: 10/06/2004
• Status: Active Grant

• Current Assignee: Sofradim Production
• Original Assignee: Sofradim Production
• Inventors: Bailly, Pierre, Therin, Michel
• Granted Patent: US 7,833,234 B2
• Time in Patent Office: Days
• US Class Current: 606/142
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/0419 H-fasteners

Abstract

The present invention relates to an appliance for storing, distributing and placing couched I-shaped surgical fasteners, comprising a handgrip body equipped with at least one control means, and an elongate element (C) attached and fixed to the handgrip, in which appliance the elongate element (C) is made up of a body (20) of tubular overall shape containing:

• • near its distal end, a magazine slide (22) itself containing couched I-shaped fasteners having an anchoring bar, a catching bar and a connecting strip, said magazine slide (22) being displaceable in the elongate element (C) by a control rod (24) which can be actuated by the control means of the handgrip and, on the other hand, secured to a slotted and longitudinal hollow ejection barrel projecting from the distal end of said magazine slide (22) and able to project from the elongate element (C),
  • and, in its tubular body (20), on the one hand, means (23) for distributing the stored fasteners one by one, this distribution involving the transfer of the anchoring bar of the first fastener into a receiving seat arranged in the continuation of the ejection barrel (50) and, on the other hand, an ejection plunger which can be displaced by the control means of the handgrip and which is arranged in alignment with the ejection barrel so as to push the anchoring bar of the first fastener into the latter, characterized in that: the distal part of the anchoring bar of the fasteners is of conical shape, and the distal end of this distal part is of hemispherical shape, the surface of the distal end of the ejection barrel is arranged in a plane substantially perpendicular to the longitudinal axis of the tubular body. The present invention relates also to a surgical fastener.

Claims

1. Appliance (1) for storing, distributing and placing couched I-shaped surgical fasteners (A), comprising a handgrip body (B) equipped with at least one control means (8, 10), and an elongate element (C) attached and fixed to the handgrip (4), in which appliance the elongate element (C) is made up of a body (20) of tubular overall shape containing:

near its distal end, a magazine slide (22) itself containing couched I-shaped fasteners (A) having an anchoring bar (2), a catching bar (3) and a connecting strip (4), said magazine slide (22) being displaceable in the elongate element (C) by a control rod (24) which can be actuated by the control means (8, 10) of the handgrip (6) and, on the other hand, secured to a slotted and longitudinal hollow ejection barrel (50) projecting from the distal end of said magazine slide (22) and able to project from the elongate element (C),

and, in its tubular body (20), on the one hand, means (23, 41) for distributing the stored fasteners (A) one by one, this distribution involving the transfer of the anchoring bar (2) of the first fastener into a receiving seat (55) arranged in the continuation of the ejection barrel (50) and, on the other hand, an ejection plunger (42) which can be displaced by the control means (8, 10) of the handgrip (6) and which is arranged in alignment with the ejection barrel (50) so as to push the anchoring bar (2) of the first fastener into the latter,

characterized in that;

the distal part (2a) of the anchoring bar (2) of the fasteners (A) is of conical shape, and the distal end (2c) of this distal part (2a) is of hemispherical shape,

the surface of the distal end of the ejection barrel (50) is arranged in a plane substantially perpendicular to the longitudinal axis of the tubular body (20).

2. Appliance (1) according to claim 1, characterized in that the ejection barrel (50) is made of plastic and is moulded in one piece with the magazine slide (22).

3. Appliance (1) according to claim 1, characterized in that the fastener (A) is made of biocompatible plastic.

4. Appliance (1) according to claim 3, characterized in that the fastener (A) is made of bioabsorbable plastic.

5. Appliance (1) according to claim 4, characterized in that the bioabsorbable plastic is a lactic acid polymer.

6. Appliance (1) according to claim 1, characterized in that the length of the projecting part of the ejection barrel (50) at the moment of ejection is less than or equal to 3 mm.

7. Appliance (1) according to claim 1, characterized in that the total length L′

of the fastener (A) in its operating position is less than or equal to 10.5 mm.

8. Appliance (1) according to claim 1, characterized in that the total height H of the fastener (A) in its operating position is less than or equal to 6.1 mm.

9. Appliance (1) according to claim 1, characterized in that the handgrip (4) is provided with a double non-return system (12, 13, 14, 19a, 19b, 19c) ensuring appropriate use of the appliance and avoiding its becoming jammed.

10. Appliance (1) according to claim 1, characterized in that the elongate element C comprises a step-by-step system (23) able to move the stored fasteners A by a step P having a value equal to the length L of the catching bar (3) of a fastener A, this step-by-step system (23) comprising a rack (28) effecting a drawer movement upon each ejection and being equipped with a shuttle (32) which is mounted so as to slide on this rack (28), this shuttle (32) cooperating with fixed notches (35) of the magazine slide (22) in order to advance by a step P on the rack (28) upon each ejection.

11. Surgical fastener (A) in the shape of a couched I, comprising an anchoring bar (2), a catching bar (3) and a connecting strip (4), characterized in that the distal part (2a) of the anchoring bar (2) of the fastener (A) is of conical shape, and the distal end (2c) of this distal part (2a) is of hemispherical shape.

12. Assembly comprising at least one couched I-shaped surgical fastener (A) and an appliance (1) for storing, distributing and placing such fasteners, comprising a handgrip body (B) equipped with at least one control means (8, 10), and an elongate element (C) attached and fixed to the handgrip (4), in which appliance the elongate element (C) is made up of a body (20) of tubular overall shape containing:

near its distal end, a magazine slide (22) itself containing the couched I-shaped fasteners (A) having an anchoring bar (2), a catching bar (3) and a connecting strip (4), said magazine slide (22) being displaceable in the elongate element (C) by a control rod (24) which can be actuated by the control means (8, 10) of the handgrip (6) and, on the other hand, secured to a slotted and longitudinal hollow ejection barrel (50) projecting from the distal end of said magazine slide (22) and able to project from the elongate element (C),

and, in its tubular body (20), on the one hand, means (23, 41) for distributing the stored fasteners (A) one by one, this distribution involving the transfer of the anchoring bar (2) of the first fastener into a receiving seat (55) arranged in the continuation of the ejection barrel (50) and, on the other hand, an ejection plunger (42) which can be displaced by the control means (8, 10) of the handgrip (6) and which is arranged in alignment with the ejection barrel (50) so as to push the anchoring bar (2) of the first fastener into the latter,

characterized in that;

the distal part (2a) of the anchoring bar (2) of the fasteners (A) is of conical shape, and the distal end (2c) of this distal part (2a) is of hemispherical shape,

the surface of the distal end of the ejection barrel (50) is arranged in a plane substantially perpendicular to the longitudinal axis of the tubular body (20).