Gas-sealed instruments for use in laparoscopic surgery
First Claim
1. An instrument for use in laparoscopic procedures in a body cavity insufflated with a gas, the instrument comprising:
- a static portion including;
;
a handle, andan elongate outer tube having a bore, a proximal portion attached to the handle, and a distal portion adapted for inserting into the body cavity;
a moving portion including;
an operating lever pivotally mounted in the handle, andan elongate operating rod mounted in the bore of the elongate outer tube, and axially slidable relative thereto in response to the operating lever; and
a flexible sealing means for preventing the gas from escaping from the body cavity via the static portion, the flexible sealing means including;
an outer portion fixedly attached to at least one of the handle and the elongate outer tube of the static portion,an inner portion disposed about part of at least one of the operating lever and elongate operating rod of the moving portion, the inner portion being movable relative to the outer portion, anda flexible mid portion interconnecting the outer portion and the inner portion, the flexible mid portion permitting the inner portion to move relative to the outer portion.
5 Assignments
0 Petitions
Accused Products
Abstract
An gas-sealed instrument for use in laparoscopic procedures in a gas-insufflated body cavity. The instrument comprises a static portion, a moving portion, and a flexible seal for preventing gas from escaping from the body cavity through the static portion. The static portion includes a handle, and an elongate outer tube having a bore, a proximal portion attached to the handle, and a distal portion adapted for inserting into the body cavity. The moving portion includes an operating lever pivotally mounted in the handle, and an elongate operating rod mounted in the bore of the elongate outer tube, and sliding axially relative thereto in response to the operating lever. The flexible seal includes an outer portion attached to the static portion, an inner portion disposed about part of the moving portion, and a flexible mid portion between the outer portion and the inner portion. A rigid seal may be substituted for the flexible seal.
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Citations
38 Claims
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1. An instrument for use in laparoscopic procedures in a body cavity insufflated with a gas, the instrument comprising:
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a static portion including;
;a handle, and an elongate outer tube having a bore, a proximal portion attached to the handle, and a distal portion adapted for inserting into the body cavity; a moving portion including; an operating lever pivotally mounted in the handle, and an elongate operating rod mounted in the bore of the elongate outer tube, and axially slidable relative thereto in response to the operating lever; and a flexible sealing means for preventing the gas from escaping from the body cavity via the static portion, the flexible sealing means including; an outer portion fixedly attached to at least one of the handle and the elongate outer tube of the static portion, an inner portion disposed about part of at least one of the operating lever and elongate operating rod of the moving portion, the inner portion being movable relative to the outer portion, and a flexible mid portion interconnecting the outer portion and the inner portion, the flexible mid portion permitting the inner portion to move relative to the outer portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification