SURGICAL PORT ASSEMBLY

• US 20100113886A1
• Filed: 08/31/2009
• Published: 05/06/2010
• Est. Priority Date: 07/21/2004
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: MacDonald, Jeffrey H., Rende, Frank, DeBisschop, Mark J., Konik, Anatoly, Abrams, Michael, Gutelius, Patrick N., Battles, Christopher, Shikhman, Oleg, Rottenberg, Dan, Piskun, Gregory
• Granted Patent: US 8,961,407 B2
• Time in Patent Office: Days
• US Class Current: 600/231
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 2017/3441 with distal sealing means
• CPC Class Codes: A61B 2017/3447 Linked multiple cannulas
• CPC Class Codes: A61B 2017/3466 for simultaneous sealing of multiple instruments
• CPC Class Codes: A61B 2017/349 Trocar with thread on outside

Abstract

A surgical port comprising a body and first and second cannula extending from the body and movable with respect to the body via an instrument inserted through the respective cannula. The cannulas can extend distally from the body and can include one or more seals. A port assembly and first and second instruments manipulatable in a crossed configuration are also disclosed.

Claims

1-47. -47. (canceled)

48. A surgical port comprising:

a body composed at least in part of a first material;

a membrane composed at least in part of a second different material and supported by the body, at least a portion of the membrane being flexible; and

first and second cannulas extending from the membrane and being movable with respect to the body via movement of an instrument inserted therethrough.

49. The port of claim 48, wherein the membrane is composed of stretchable material, the membrane enabling pivoting and twisting of the cannnulas to alter the position of instruments inserted therethrough.

50. The port of claim 49, wherein the body has a transverse dimension at a proximal portion greater than a transverse dimension at a distal portion.

51. The port of claim 50, wherein the body includes a tissue engaging portion, the tissue engaging portion having an irregular outer surface portion to enhance gripping of the tissue adjacent the opening.

52. The port of claim 50, wherein the body is composed of a rigid material.

53. The port of claim 48, wherein the body includes a flexible wire, the wire being expandable.

54. The port of claim 53, wherein the wire is automatically expandable.

55. The port of claim 53, wherein the wire is expandable by engagement by an expandable member.

56. The port of claim 48, wherein the cannulas have a proximal opening adjacent the membrane and a distal opening extending distally of the body.

57. The port of claim 55, wherein the first cannula has an inner lumen greater in transverse dimension than an inner lumen of the second cannula.

58. The port of claim 48, further comprising a stiffening member positioned within the first cannula.

59. The port of claim 55, wherein the stiffening member comprises a rigid tube coaxially positioned within the lumen.

60. The port of claim 48, wherein the first cannula includes a seal at the distal end thereof.

61. The port of claim 48, wherein the membrane is attached to an outer surface of the body.

62. The port of claim 61, wherein the membrane is attached by a swaged ring.

63. The port of claim 48, further comprising first and second cannula extensions, the first cannula extension connected to the first cannula and the second cannula extension connected to the second cannula.

64. The port of claim 63, wherein the cannula extensions are connected to the respective cannula by a swaged ring.

65. The port of claim 63, wherein the cannula member has a first seal and the cannula extension has a second seal.

66. The port of claim 60, wherein the first cannula includes a valve positioned therein.

67. A surgical port comprising:

a body;

a cannula support, the cannula support extending substantially transversely to the body; and

a plurality of cannulas connected to the cannula support by a pivotable joint to enable pivoting of the cannulas with respect to the support.

68. The port of claim 67, wherein the support comprises a rigid plate and the joint is a ball joint.

69. The port of claim 67, wherein a proximal end of the cannulas extends from the pivotable joint.

70. The port of claim 67, wherein a distal end of the cannnulas extends from the pivotable joint.

71. The port of claim 67, wherein the support is movable with respect to the body.

72. A surgical port comprising:

a body portion;

a support mounted within the body portion; and

first and second cannulas extending from the support at a respective first and second juncture, the first and second cannulas being flexible with respect to the support at the respective first and second juncture.

73. The surgical port of claim 72, wherein the support is attached to an outer surface of the body portion.

74. The surgical port of claim 72, wherein a proximal end of the first and second cannulas is adjacent the support.

75. A surgical port comprising:

a body;

first and second members movable with respect to the body; and

a first cannula and a second cannula extending from the body,

wherein the first and second members are independently movable to change the orientation of the respective cannula.

76. The port of claim 75, wherein the first member comprises a first plate composed at least in part of metal and the second member comprises a second plate composed at least in part of metal.

77. The port of claim 76, wherein the first plate has an opening therethrough to allow passage of the second cannula.

78. The port of claim 75, wherein the first plate is positioned distally of the second plate.

79. A surgical port comprising:

a body having a wall;

first and second cannulas extending from the body and being movable with respect to the body via movement of an instrument inserted therethrough, wherein at least portions of the body wall are deformable by pressure exerted by the instrument thereon; and

a support engagable with the body to increase the rigidity of at least portions of the body.

80. The surgical port of claim 79, wherein the support comprises a wire.

81. The support of claim 80, wherein the wire is embedded in the wall of the body.

82. In combination a surgical port and first and second instruments for performing a surgical procedure, the combination comprising:

a port having first and second cannulas extending therefrom, the cannulas mounted to the port to provide at least a pivoting range of motion such that orientation of the cannulas is changeable; and

a first instrument insertable through the first cannula and a second instrument insertable through the second cannula, the first and second instruments each having a distal shaft portion angled with respect to a more proximal shaft portion and the instruments manipulatable in a crossed configuration with the distal ends of the instrument pointable toward each other.

83. The combination of claim 82, wherein the port has a body and the cannulas extend distally from the body.

84. The combination of claim 83, wherein the first and second instruments each have first and second jaws, at least the first jaw being movable with respect to the second jaw.

85. The combination of claim 84, wherein the jaws of the instruments are rotatable with respect to the more proximal shaft portion by an actuator remote from the jaws.

86. The combination of claim 82, wherein the first and second cannulas are flexible.

87. The combination of claim 82, wherein the port includes a cannula carrier, and the first and second cannulas are pivotable with respect to the cannula carrier.

88. The combination of claim 82, wherein the port includes a proximal region having a transverse dimension larger than a transverse dimension of a more distal region.

89. The combination of claim 82, wherein the port includes a cannula carrier supporting the first and second cannulas, and a proximal opening in the first cannula is adjacent the cannula carrier.

90. In combination a surgical port, a first instrument, and a flexible endoscope for performing a surgical procedure, the combination comprising:

a port having first and second cannulas extending therefrom, the cannulas mounted to the port to provide at least a pivoting range of motion such that orientation of the cannulas is changeable; and

a first instrument insertable through the first cannula for performing an operative step on tissue; and

a flexible endoscope insertable through the second cannula for visualization of the surgical site.

91. The combination of claim 90, further comprising a rigid member having a passage, the rigid member at least partially positioned within the second cannula to angle the cannula to thereby angle the scope.

92. The combination of claim 91, wherein the rigid member is secured to the port at an angle to maintain the angled position of the second cannula.

93. A method for performing a minimally invasive surgical procedure, the method comprising the steps of:

positioning a port with respect to a patient, the port having first and second cannulas extending therefrom,

inserting a first instrument through the first cannula;

inserting a second instrument through the second cannula, wherein, at least during a portion of the surgical procedure, a distal tip of the second instrument points toward a distal tip of the first instrument; and

moving at least the first instrument to change the orientation of the cannulas and to position the first and second instruments in a crossed configuration.

94. The method of claim 93, further comprising the step of inserting a flexible endoscope through a third cannula of the port.

95. The method of claim 94, further comprising the step of securing the port to the patient.

96. The method of claim 94, further comprising the step of securing the third cannula in an angled position.