Toolkit for implanting an intracorporeal lead such as for cardiac pacing or sensing

• US 8,142,446 B2
• Filed: 09/17/2008
• Issued: 03/27/2012
• Est. Priority Date: 09/18/2007
• Status: Active Grant

• Current Assignee: Sorin CRM USA (MicroPort Scientific Corp.)
• Original Assignee: Sorin CRM USA (MicroPort Scientific Corp.)
• Inventors: Shan, Nicolas
• Primary Examiner(s): Jackson, Gary
• Assistant Examiner(s): STRANSKY, KATRINA MARIE
• Application Number:
  US12/212,429
• Publication Number:
  US 20090076522A1
• Time in Patent Office: 1,287 Days
• Field of Search: 606/129, 604/160, 604/523, 604/167.03, 604/161, 604/164.05, 60416701-16706, 607/122
• US Class Current: 606/129
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/0662 Guide tubes
• CPC Class Codes: A61M 39/0693 including means for seal penetration
• CPC Class Codes: A61N 1/372 Arrangements in connection with the implantation of stimulators

Abstract

A toolkit for implanting an intracorporal lead, preferably a cardiac sensing/pacing lead. This toolkit includes a guide-catheter (10), having a sheath (12) with an internal lumen (42) opened at its distal and proximal ends, and cuttable along a generatrix in order to allow extracting of the guide-catheter after use. A hemostatic valve (14) is mounted at the proximal end (40) of the guide-catheter, for selectively filling, or not, the internal lumen of the guide-catheter at its input end. The valve is frangible in at least two parts, each dissociable from the guide-catheter at both sides around a median axial plane. The valve comprising a mobile element sliding on the guide-catheter between two extreme positions, with an opened position where the proximal end (40) of the guide-catheter (10) freely emerges out of the valve so as to allow access to said internal lumen, and a closed position where this proximal end of the guide-catheter is filled in a tight manner.

Claims

1. A toolkit for setting in place an intracorporal lead, comprising:

a guide-catheter, having a sheath including a distal end, a proximal end, and an internal lumen opened at the distal and proximal ends, and a generatrix, said sheath being able to be opened along the generatrix so as to allow removal of the guide-catheter after use thereof;

a hemostatic valve able to selectively fill the internal lumen of the guide-catheter at the input end, said valve comprising an element mobile longitudinally slidable along the guide-catheter between an opened position where the proximal end of the guide-catheter freely emerges out of the valve to provide an access to the internal lumen of the guide-catheter, and a closed position where said proximal end of the guide-catheter is filled in a tight manner, said valve being frangible into at least two parts dissociable from each other along a median axial plane, wherein;

the sheath comprises a rigidified reinforced sheath, adapted for being cut along said generatrix by means of a cutting tool comprising a blade;

the guide-catheter presents a constant diameter in its region receiving the valve;

the frangible valve is mounted at the proximal end of the guide-catheter, and is fitted between said at least two parts of the frangible valve; and

the dissociation of said at least two parts of the frangible valve provide free access to the guide-catheter.

2. The toolkit of claim 1, wherein the guide-catheter is essentially devoid of a bell for coupling with its proximal end.

3. The toolkit of claim 1, wherein the valve further comprises a central inner cavity able to receive the proximal end of the guide-catheter, and, at the distal side of said inner cavity, a material providing a circumferential tightness with the sheath of the guide-catheter.

4. The toolkit of claim 3, wherein the valve further comprises, at the proximal side of the inner cavity, a closure deformable between a first non-stressed position, where said closure fills said inner cavity at the proximal side, and a second distended position, where the closure is crossable by the sheath of the guide-catheter while ensuring a circumferential tightness with the sheath, the non-stressed position corresponding to said closed position, and the distended position corresponding to said opened position.

5. The toolkit of claim 4, wherein the valve further comprises an internal part embedded therein, said internal part being made of an elastically deformable material, said internal part including said material providing circumferential tightness at its distal side, and said deformable closure at its proximal side.

6. The toolkit of claim 3, wherein the valve further comprises a lateral way communicating with a radial derivation of the internal cavity.

7. The toolkit of claim 1, wherein the valve is freely mobile in axial rotation around the guide-catheter.

8. The toolkit of claim 1, wherein the valve comprises at least one prehension winglet spreading in an axial plane.

9. The toolkit of claim 1, wherein the guide-catheter further comprises at least one prehension winglet spreading in an axial plane.

10. The toolkit of claim 1, wherein the valve further comprises means for locking said valve in at least one position selected from among an opened position and a closed position.

11. The toolkit of claim 10, wherein said locking means further comprises a cooperating fittings respectively provided on the valve body and on an axial extension of the guide-catheter.