Device for delivering adhesive
This document relates to delivery devices for dispensing fluid materials, including high viscosity fluids such as high viscosity surgical adhesives. For example, methods and materials for an integrated system of containing and permitting point of use delivery of a high viscosity adhesive fluid onto a planar surface of tissue during a surgical procedure are provided.
1. A delivery device for applying two or more drops of a high viscosity surgical adhesive to an anatomical tissue surface, wherein said delivery device comprises:
(a) an actuator portion comprising an actuator and a push rod, wherein said actuator portion is configured to advance said push rod when a user actuates said actuator,
(b) a cartridge housing configured to receive a cartridge containing said high viscosity surgical adhesive, wherein said cartridge housing is attached to said actuator portion such that said push rod is capable of advancing into said cartridge when said cartridge is positioned within said cartridge housing, and
(c) a tip releasably engaged to said cartridge housing, wherein said tip comprises two or more channels and two or more tubular members, wherein at least a portion of each of said two or more tubular members is disposed within said channels, wherein at least a portion of at least one of the two or more channels has a non-linear shape, and wherein said tubular members are configured to allow said high viscosity surgical adhesive to move from said cartridge to said anatomical tissue surface when said user actuates said actuator,
wherein a single actuation of said actuator is capable of dispensing a single drop of said high viscosity surgical adhesive from a distal tip of each of said tubular members at the same time, wherein the volume of each of said dispensed drops is substantially similar.
2. The delivery device of claim 1 , wherein said high viscosity surgical adhesive has a viscosity that is from 200 cP to 2,000 cP.
3. The delivery device of claim 1 , wherein said tip comprises three channels and three tubular members, wherein each tubular member is at least partially disposed within one and only one channel, and wherein each channel has disposed therein at least a portion of one and only one tubular member.
4. The delivery device of claim 3 , wherein at least a first tubular member of the three tubular members has a serpentine shape.
5. The delivery device of claim 4 , wherein said distal tips of said tubular members are configured in a linear line and are sequentially spaced apart from each other at a substantially similar distance, and wherein said tubular members have substantially similar lengths.
6. The delivery device of claim 5 , wherein said tip comprises a spacing gauge configured to allow said user to align a second set of dispensed drops a predefined distance from a first set of dispensed drops.
7. The delivery device of claim 6 , wherein a distal tip of said spacing gauge is positioned, from said linear line, at a distance similar to said substantially similar distance.
8. The delivery device of claim 1 , wherein said tip comprises a spacing gauge configured to allow said user to align a second set of dispensed drops a predefined distance from a first set of dispensed drops.
9. The delivery device of claim 1 , wherein said cartridge comprises a distal end, a proximal end, and a plunger located within said cartridge near to said proximal end, wherein said proximal end comprises a seal, and wherein said push rod is configured to engage said plunger.
10. The delivery device of claim 9 , wherein a distal end of said push rod comprises a seal piercing element.
11. A delivery device for applying two or more drops of a high viscosity surgical adhesive to an anatomical tissue surface, wherein said delivery device comprises:
(a) a push rod,
(b) an actuator, wherein said actuator is configured to advance said push rod when a user actuates said actuator,
(c) a cartridge housing portion configured to house a cartridge containing said high viscosity surgical adhesive, wherein said push rod is capable of advancing into said cartridge when said cartridge is positioned within said cartridge housing, and
(d) a tip located at a distal end of said delivery device, wherein said tip comprises two or more channels and two or more tubular members, wherein at least about 25% of a length of each of said two or more tubular members is disposed within said channels, wherein at least a portion of at least one of the two or more channels is an open channel, and wherein said tubular members are configured to allow said high viscosity surgical adhesive to move from said cartridge to said anatomical tissue surface when said user actuates said actuator,
wherein a single actuation of said actuator is capable of dispensing a single drop of said high viscosity surgical adhesive from each of said tubular members at the same time, wherein the volume of each of said dispensed drops is substantially similar.
12. The delivery device of claim 11 , wherein said high viscosity surgical adhesive has a viscosity that is from 200 cP to 2,000 cP.
13. The delivery device of claim 11 , wherein said cartridge comprises a distal end, a proximal end, and a plunger located within said cartridge near to said proximal end, wherein said proximal end comprises a seal, and wherein said push rod is configured to engage said plunger.
14. The delivery device of claim 13 , wherein a distal end of said push rod comprises a seal piercing element.
15. The delivery device of claim 14 , wherein said seal piercing element comprises at least six extensions.
16. The delivery device of claim 14 , wherein said seal piercing element is configured to pierce said seal of said proximal end of said cartridge.
17. The delivery device of claim 11 , wherein said cartridge comprises a distal end and a proximal end, wherein said distal end comprises a seal, and wherein a distal portion of said delivery device comprises a piercing element configured to pierce said seal of said distal end of said cartridge as said cartridge is advanced from one location within said cartridge housing toward the distal end of said cartridge housing.
18. The delivery device of claim 17 , wherein said delivery device comprises an actuator ring configured to advance said cartridge from one location within said cartridge housing toward the distal end of said cartridge housing as said actuator ring is rotated.