Claims
- 1. A method for trephination and irrigation of the frontal sinus cavity comprising the steps of:
making an incision in soft tissue covering the frontal bone defining a wall of the frontal sinus cavity; placing a skin protective drill guide through the incision to engage the frontal bone, the drill guide having a lumen therethrough; drilling a trephine hole in the frontal bone by passing a trephination instrument through the lumen in the drill guide; withdrawing the trephination instrument from the drill guide; inserting a guide pin through the lumen of the drill guide and into the trephine hole; removing the drill guide; inserting an irrigation cannula over the guide pin and into the trephine hole; and supplying irrigation fluid into the frontal sinus through the irrigation cannula.
- 2. A method for protecting soft tissue while drilling into underlying bone, comprising the steps of:
making an incision in the soft tissue; inserting a protector sleeve into the incision to engage the bone, the sleeve having a lumen therethrough; inserting a drill into the protector sleeve lumen; and drilling into the bone with the protector sleeve protecting the soft tissue from the drill.
- 3. A skin protective drill guide for use in bone trephination after incision of overlying soft tissue, comprising:
a tubular sleeve having first and second open ends and a lumen therebetween, said lumen having an inside diameter sized to accept a drill; and a handle affixed to said tubular sleeve and extending from said sleeve to permit said sleeve to be placed through the incision with said first open end engaging the bone.
- 4. The skin protective drill guide as recited in claim 3, wherein said first open end carries teeth for engaging the bone.
- 5. A trephination and irrigation kit, comprising:
an irrigation cannula having a proximal end, a distal end and a lumen therethrough of a selected diameter; a guide pin having an outside diameter smaller than said cannula lumen diameter to permit said irrigation cannula to be passed over said guide pin; a protective sleeve having a lumen therethrough of a diameter larger than said guide pin outside diameter to permit said guide pin to be inserted through said protective sleeve; and a trephination instrument having an outside diameter smaller than said protective sleeve lumen diameter to permit said trephination instrument to be inserted through said protective sleeve.
- 6. A method for providing fluid communication into a cavity covered by a bony surface under skin, comprising:
a) inserting a guide tube distal end into an incision and proximate the bony surface; b) inserting a drill into the guide tube and placing the drill against the bony surface; c) drilling through the bony surface to provide a hole with access to the cavity. d) withdrawing the drill from the guide tube; e) placing a guide pin coaxially into the guide tube, into the hole; and f) axially withdrawing the guide tube from the incision, while leaving the guide pin in the hole; g) coaxially inserting a cannula over the guide pin and approximating the cannula distal open end into engagement with the hole to provide fluid communication between the cannula and the cavity; and h) withdrawing the guide pin.
- 7. A surgical method for protecting soft tissue while drilling, comprising:
making an incision in the soft tissue, inserting a protector sleeve into the incision; inserting a drill into the protector sleeve lumen; and drilling into the body through the protector sleeve.
- 8. A method for maintaining the location of a trephination hole, comprising:
making an incision in the skin; inserting a protector sleeve into the incision; inserting a drill into the protector sleeve lumen; drilling into the body through the protector sleeve, thereby making a trephination hole; and withdrawing the drill from the protector sleeve lumen.
- 9. The method of claim 8, further comprising:
inserting a pin into the protector sleeve lumen and into the trephination hole.
- 10. The method of claim 9, further comprising:
withdrawing the protector sleeve while leaving the pin in the trephination hole.
- 11. A trephination and irrigation set, comprising:
a cannula having a proximal end, a distal end and lumen therethrough of a selected diameter; a guide pin having an outside diameter smaller than said cannula lumen diameter; and a drill guide having a handle and protective sleeve having a lumen therethrough of a diameter larger than said guide pin outside diameter.
- 12. The set of claim 11, further including: a drill having a selected outside diameter smaller than said protective sleeve lumen diameter.
- 13. The set of claim 12 wherein said cannula has an outside diameter less than said drill selected outside diameter.
- 14. The set of claim 11, wherein said cannula outside diameter tapers from a larger diameter proximate said proximal end to a smaller diameter proximate said distal end.
- 15. The set of claim 11, wherein the protective sleeve has an open end carrying teeth or serrations.
- 16. A guiding soft tissue protector for receiving a drill, comprising:
a tubular sleeve having first and second open ends and a lumen therebetween, said lumen having an inside diameter sized to accept the drill; and a handle affixed to said tubular sleeve.
- 17. The protector of claim 16, wherein one of said open ends includes teeth or serrations.
- 18. A trephination location maintaining set, comprising:
a guiding soft tissue protector for including a tubular sleeve having first and second open ends and a lumen therebetween, said lumen having an inside diameter, and a handle affixed to said tubular sleeve; and a guide rod having first and second rounded ends and an outside diameter smaller than said protector lumen inside diameter.
- 19. A method of drilling into a frontal sinus cavity having a depth defined between a posterior wall and a frontal wall having a thickness comprising the steps of
providing a drill guide having a distal end for engaging the bone and a proximal end carrying an abutment surface with a predetermined distance between; providing a powered drill having a distal drilling tip and a proximal abutment surface with a predetermined distance therebetween greater than the predetermined distance of the drill guide to define an extension distance less than the depth of the sinus cavity plus the thickness of the frontal bone and greater than the thickness of the frontal bone; placing the distal end of the drill guide in engagement with the frontal bone; and drilling a hole in the frontal bone by inserting the powered drill through the drill guide whereby the distal drilling tip is prevented from engaging the posterior wall by engagement of the powered drill abutment surface with the drill guide abutment surface.
Parent Case Info
[0001] This application claims priority to U.S. provisional application Ser. No. 60/083,762, filed May 1, 1998, the entire disclosure of which is incorporated herein by reference.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60083762 |
May 1998 |
US |
Divisions (1)
|
Number |
Date |
Country |
Parent |
09305342 |
Apr 1999 |
US |
Child |
09851150 |
May 2001 |
US |