Device for delivery of liquid and gel-like surgical materials and methods for use thereof
First Claim
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1. A device for delivery of a liquid or gel-like surgical material into a body cavity comprising:
- a) an elongated structural member adapted for engagement with a conventional syringe;
b) a cannula assembly capable of engagement with the syringe;
c) a saddle portion in which the syringe is seated and which permits flow communication of the surgical material through the cannula assembly; and
d) a drive mechanism in communication with the elongated structural member for advancing the surgical material through the cannula assembly wherein the surgical material has a viscosity greater than about 50,000 centipoise.
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Abstract
The present invention provides a novel apparatus for delivering a liquid or gel-like surgical material to a target site within a body cavity. The apparatus is characterized in part by an elongated structural member adapted for engagement with a conventional syringe and cannula assembly. In preferred embodiments of the present invention, devices of the invention further comprise a highly flexible applicator tip which permits application of the surgical material at variable delivery angles and even against gravity. Methods also are disclosed for applying the surgical material to the target site using. devices of the present invention.
92 Citations
37 Claims
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1. A device for delivery of a liquid or gel-like surgical material into a body cavity comprising:
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a) an elongated structural member adapted for engagement with a conventional syringe;
b) a cannula assembly capable of engagement with the syringe;
c) a saddle portion in which the syringe is seated and which permits flow communication of the surgical material through the cannula assembly; and
d) a drive mechanism in communication with the elongated structural member for advancing the surgical material through the cannula assembly wherein the surgical material has a viscosity greater than about 50,000 centipoise. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A device for delivery of a liquid or gel-like surgical material into a body cavity comprising:
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a) an elongated structural member adapted for engagement with a conventional syringe;
b) a cannula assembly capable of engagement with the syringe;
c) a saddle portion in which the syringe is seated and which permits flow communication of the surgical material through the cannula assembly;
d) a drive mechanism in communication with the elongated structural member for advancing the surgical material through the cannula assembly;
e) an applicator tip attached to a distal end of the cannula assembly; and
f) a secondary mechanism for air bolus priming of the syringe wherein the secondary mechanism disengages the elongated structural member upon actuation. - View Dependent Claims (16, 17, 18)
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19. A device for delivery of a liquid or gel-like surgical material into a body cavity comprising:
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a) an elongated structural member adapted for engagement with a conventional syringe;
b) a cannula assembly capable of engagement with the syringe;
c) a saddle portion in which the syringe is seated and which permits flow communication of the surgical material through the cannula assembly;
d) one or more pivot levers in communication with the elongated structural member for advancing the surgical material through the cannula assembly;
e) an applicator tip attached to a distal end of the cannula assembly; and
f) a secondary mechanism for air bolus priming of the syringe wherein the secondary mechanism disengages the elongated structural member upon actuation. - View Dependent Claims (20)
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21. A device for delivery of a liquid or gel-like surgical material into a body cavity comprising:
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a) an elongated structural member adapted for engagement with a conventional syringe;
b) a cannula assembly capable of engagement with the syringe;
c) a saddle portion in which the syringe is seated and which permits flow communication of the surgical material through the cannula assembly;
d) one or more pivot levers in communication with the elongated structural member for advancing the surgical material through the cannula assembly;
e) an applicator tip attached to a distal end of the cannula assembly; and
f) a secondary mechanism for air bolus priming of the syringe wherein the secondary mechanism disengages the elongated structural member upon actuation and wherein the elongated structural member communicates with a spring-reinforced assembly to prevent syringe plunger expansion and permit air bolus priming and wherein the spring-reinforced assembly comprises a cylindrical rod about which a flat or rounded coil is fitted.
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22. A method of delivering a surgical material to a target site within a body cavity comprising:
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providing a device comprising an elongated structural member adapted for engagement with a conventional syringe, a cannula assembly capable of engagement with the syringe, a saddle in which the syringe is seated and which permits conduit with the cannula assembly, and a mechanism in communication with the elongated structural member for advancing the surgical material through the cannula assembly;
loading the surgical material into the syringe;
engaging the syringe with the cannula assembly and seating the syringe in the saddle of the device;
inserting the cannula portion of the device into the body cavity;
positioning the distal tip of the cannula within proximity of the target site;
applying the surgical material having a viscosity greater than 50,000 centipoise directly to the target site; and
withdrawing the apparatus from the body cavity. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A method of delivering a surgical material to a target site within a body cavity comprising:
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providing a device comprising an elongated structural member adapted for engagement with a conventional syringe, a cannula assembly capable of engagement with the syringe, a saddle in which the syringe is seated and which permits conduit with the cannula assembly;
a drive mechanism in communication with the elongated structural member for advancing the surgical material through the cannula assembly, an applicator tip attached to a distal end of the cannula assembly and a secondary mechanism which permits air bolus priming of the syringe and which disengages the elongated structural member upon actuation;
loading the surgical material into the syringe;
connecting the syringe to the cannula assembly and seating the syringe in the saddle of the device;
inserting the cannula portion of the device into the body cavity;
positioning the distal tip of the cannula within proximity of the target site;
applying the surgical material to the target site wherein the surgical material has a viscosity greater than about 50,000 centipoise;
optionally replacing the syringe with the same or another syringe containing an additional volume of surgical material; and
withdrawing the apparatus from the body cavity.
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30. A method of reducing adhesions between bodily tissues at a target anatomical site within a body cavity comprising:
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providing a device comprising an elongated structural member adapted for engagement with a conventional syringe, a cannula assembly capable of engagement with the syringe, a surface on which the syringe is seated and which permits flow communication of the surgical material through the cannula assembly;
a mechanism in communication with the elongated structural member for advancing an adhesion barrier material through the cannula assembly, a flexible applicator tip attached to a distal end of the cannula assembly for advancing an adhesion barrier material there through and a secondary mechanism which permits priming of the syringe and which disengages the elongated structural member upon actuation;
loading the syringe with the adhesion barrier material;
connecting the syringe to the cannula assembly and seating the syringe in the device;
inserting the cannula portion of the device into the body cavity;
locating the distal tip of the cannula within proximity of the target anatomical site;
applying the adhesion barrier material to the target anatomical site; and
withdrawing the apparatus from the body cavity. - View Dependent Claims (31, 32, 33)
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34. A method for sealing a bodily organ or tissue at a target anatomical site within a body cavity comprising:
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providing a device comprising an elongated structural member adapted for engagement with a conventional syringe, a cannula assembly capable of engagement with the syringe, a surface on which the syringe is seated and which permits flow communication of the surgical material through the cannula assembly;
a mechanism in communication with the elongated structural member for advancing an anatomical filler material through the cannula assembly, an applicator tip attached to a distal end of the cannula assembly and a secondary mechanism which permits priming of the syringe and which disengages the elongated structural member upon actuation;
loading the syringe with the anatomical filler material;
connecting the syringe to the cannula assembly and seating the syringe in the device;
inserting the cannula portion of the device into the body cavity;
locating the distal tip of the cannula within proximity of the target anatomical site;
applying the anatomical filler material to the target anatomical site wherein the anatomical filler material has a viscosity greater that 50,000 centipoise; and
withdrawing the apparatus from the body cavity. - View Dependent Claims (35, 36, 37)
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Specification