Guide wire seal for reamer irrigator aspirator system

Patent metadata

Field	Value
Publication number	US-10646235-B2
Application number	US-201715794115-A
Country	US
Kind code	B2
Filing date	Oct 26, 2017
Priority date	Oct 26, 2017
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

A system for reaming a medullary canal of a bone, comprises a reamer device including an elongated member and a reamer head rotatably coupled to a distal end of the elongated member and a drive shaft sized and shaped to be inserted through the elongated member so that a first connector at a distal end of the drive shaft is engagable with the reamer head, rotation of the drive shaft rotates the reamer head relative to the elongated member, the drive shaft including a channel extending longitudinally therethrough and a hole extending laterally therethrough from a first opening through a first side wall of the drive shaft to a second opening through a second side wall of the drive shaft in combination with a seal configured to be inserted through the hole of the drive shaft so that the seal extends across the channel of the drive shaft.

First claim

What is claimed is:

1. A system for reaming a medullary canal of a bone, comprising:
a reamer device including an elongated member and a reamer head rotatably coupled to a distal end of the elongated member, the elongated member including a lumen extending therethrough;
a drive shaft sized and shaped to be inserted through the lumen of the elongated member so that a first connector at a distal end of the drive shaft is engagable with the reamer head, the drive shaft extending longitudinally from a proximal end coupleable to a driving tool to the distal end including the first connector so that rotation of the drive shaft via the driving tool rotates the reamer head relative to the elongated member, the drive shaft including a channel extending longitudinally therethrough and a hole extending laterally therethrough from a first opening through a first side wall of the drive shaft to a second opening through a second side wall opposite the first side wall; and
a seal configured to be inserted through the hole of the drive shaft so that the seal extends across the channel of the drive shaft to permit passage of a guide wire therethrough while preventing fluid from flowing therepast.

2. The system of claim 1 , wherein the drive shaft includes a second connector proximate the proximal end thereof for connection to a proximal end of the reamer device.

3. The system of claim 2 , wherein the hole extends through the drive shaft distally of the second connector so that, when the drive shaft is inserted into the elongated member, the hole is covered by a portion of the reamer device.

4. The system of claim 2 , wherein the second connector is defined via an increased diameter portion of the drive shaft.

5. The system of claim 4 , wherein the hole extends through the increased diameter portion of the drive shaft.

6. The system of claim 1 , wherein the seal is sized and shaped so that, when the seal is inserted into the hole, the seal engages the first and second openings.

7. The system of claim 1 , wherein exterior surfaces of the seal are substantially flush with an exterior surface of the drive shaft.

8. The system of claim 1 , wherein the seal includes a first lip along a first exterior surface and a second lip along a second exterior surface for engaging the first and second openings, respectively.

9. The system of claim 1 , further comprising a carrier housing the seal, the carrier sized and shaped to be inserted through the hole so that the carrier engages the first and second openings of the hole.

10. The system of claim 9 , the carrier including a first set of biasing elements configured to engage the first and second openings when the carrier is in a desired position within the hole.

11. The system of claim 9 , wherein the carrier includes a second biasing element configured to engage a portion of the hole so that the seal is pressed against a proximal surface of the hole.

12. A system for reaming a medullary canal of a bone, comprising:
a reamer device including an elongated member and a reamer head rotatably coupled to a distal end of the elongated member, the elongated member including a lumen extending therethrough;
a drive shaft sized and shaped to be inserted through the lumen of the elongated member so that a connector at a distal end of the drive shaft is engagable with the reamer head, the drive shaft extending longitudinally from a proximal end coupleable to a driving tool to the distal end including the connector so that rotation of the drive shaft via the driving tool rotates the reamer head relative to the elongated member, the drive shaft further including a channel extending longitudinally therethrough; and
a seal engagable with the proximal end of the drive shaft via a carrier housing the seal, the carrier mountable to the proximal end so that the seal is pressed thereagainst to permit a guidewire to be passed therethrough while preventing a fluid to flow proximally therepast.

13. The system of claim 12 , wherein the carrier extends from a proximal end to a distal end and includes a channel extending therethrough, the carrier mountable over the proximal end of the drive shaft so that the seal is fixed between a shoulder of the channel of the carrier and the proximal end of the drive shaft in alignment with the channel of the drive shaft.

14. The system of claim 12 , wherein the seal is substantially disc-shaped.

15. The system of claim 12 , wherein the carrier includes a plurality of longitudinally extending perforations extending along a distal portion thereof so that, when the carrier is pressed distally against the drive shaft, the perforations tear to release the carrier from the proximal end of the drive shaft.

16. The system of claim 12 , wherein the carrier includes a plurality of longitudinal slots extending along a distal portion thereof so that, when the carrier is pressed distally against the drive shaft, distal segments of the carrier defined via the longitudinal slots are moved radially outward to release the carrier from the proximal end.

17. The system of claim 16 , wherein each of the distal segments include a tab extending radially inward for engaging a corresponding groove along the proximal end of the drive shaft when the carrier is mounted thereover.

18. The system of claim 12 , wherein the carrier is integrally formed with the seal.

19. The system of claim 12 , wherein a portion of the carrier is sized and shaped to be received within the proximal end of the drive shaft via a friction fit.

20. The system of claim 12 , wherein the seal is configured is an O-ring sized and shaped to seal about a guidewire inserted therethrough.

Assignees

• Depuy Synthes Products Inc

Inventors

• Kiersh Jeff
• Shane Christopher
• Kerr Sean
• Moses Timothy P

Classifications

• F16C1/107

  Sealing details · CPC title

• A61B2018/0063

  Sealing · CPC title

• A61B17/1646

  with sealing means · CPC title

• A61B17/1631

  Special drive shafts, e.g. flexible shafts (A61B17/1642, A61B17/164 take precedence) · CPC title

• A61B17/1717

  for applying intramedullary nails or pins · CPC title