Bone material dispensing system with locking member

Patent metadata

Field	Value
Publication number	US-10687880-B2
Application number	US-201816026647-A
Country	US
Kind code	B2
Filing date	Jul 3, 2018
Priority date	Jul 3, 2018
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

A bone material dispensing device is provided. The bone material dispensing device comprises a housing having a proximal end, a distal end, and a longitudinal axis. The proximal end having a first opening and the distal end having a second opening. The first opening and the second opening configured to slidably receive at least a portion of a plunger. A locking member is provided that is pivotably connected to an upper surface of the housing and extends adjacent to the upper surface of the housing. The locking member comprises a locking surface extending adjacent to the distal end of the housing configured to engage a portion of a tubular member, a funnel, or a combination thereof. The locking member is movable in a locking position to lock the portion of the tubular member, the funnel, or the combination thereof with the housing. A bone material dispensing system and a method of implanting bone material with the bone material dispensing system are also provided.

First claim

What is claimed is:

1. A bone material dispensing device comprising a housing having a proximal end, a distal end, and a longitudinal axis, the proximal end having a first opening and the distal end having a second opening, the first opening and the second opening configured to slidably receive at least a portion of a plunger; and a locking member pivotably connected to an upper surface of the housing and extending adjacent to the upper surface of the housing, the locking member comprising a locking surface extending adjacent to the distal end of the housing configured to engage a portion of a tubular member, a funnel, or a combination thereof the locking member being movable in a locking position to lock the portion of the tubular member, the funnel, or the combination thereof with the housing.

2. The bone material dispensing device of claim 1 , wherein the locking member is movable in a downward position, which is the locking position and an upward position, which is an unlocking position to unlock the portion of the tubular member, the funnel, or the combination thereof from the housing.

3. The bone material dispensing device of claim 1 , wherein the locking member includes an interior surface comprising a stanchion at a proximal end, and a portion of the upper surface of the proximal end of the housing includes a recess, the stanchion and the recess configured for engagement with a first resilient member.

4. The bone material dispensing device of claim 1 , wherein the locking member includes an intermediate portion, the intermediate portion comprises a pivot point engaged with the upper surface of the housing.

5. The bone material dispensing device of claim 1 , wherein a distal end of the locking member includes the locking surface, the locking surface comprising a flange.

6. The bone material dispensing device of claim 1 , wherein the tubular member comprises a proximal opening, a distal opening and a channel disposed therebetween, the proximal opening, the distal opening and the channel of the tubular member configured to receive at least the portion of the plunger.

7. The bone material dispensing device of claim 6 , wherein the tubular member is movable in a first position to align the proximal opening of the tubular member with the second opening of the housing to allow the tubular member to receive at least the portion of the plunger to dispense the bone material, and the tubular member is movable in a second position to misalign the proximal opening of the tubular member with the second opening of the housing to prevent the tubular member from receiving at least the portion of the plunger.

8. The bone material dispensing device of claim 1 , wherein the tubular member and/or the funnel is configured to engage a cannula.

9. The bone material dispensing device of claim 8 , wherein the cannula comprises a folding cannula.

10. The bone material dispensing device of claim 9 , wherein the folding cannula has a diameter smaller than a diameter of the distal opening of the tubular member so as to allow at least a portion of the folding cannula to be held within the tubular member.

11. The bone material dispensing device of claim 8 , wherein (i) the funnel is configured to partially enclose the tubular member; or (ii) the funnel comprises a distal end having a tip geometry, the distal end tip geometry of the funnel being indented.

12. The bone material dispensing device of claim 1 , wherein the housing comprises a trigger assembly configured to allow incremental slidable movement of the plunger to dispense the bone material.

13. The bone material dispensing device of claim 12 , wherein the trigger assembly comprises a driving handle, a stationary handle, a driving pawl, a passive pawl, a second resilient member disposed between a first portion of the housing and the passive pawl, and a third resilient member concentric to the plunger and the second resilient member, and disposed between a second portion of the housing and the driving pawl, the driving handle configured to contact the driving pawl when the driving handle is moved toward the stationary handle, wherein movement of the driving handle toward the stationary handle causes the driving pawl to engage the plunger and compress the third resilient member and allow incremental slidable movement of the plunger.

14. The bone material dispensing device of claim 13 , wherein movement of the driving handle toward the stationary handle causes the second resilient member to be compressed against the first portion of the housing by the passive pawl.

15. The bone material dispensing device of claim 1 , wherein the plunger comprises a proximal end and a distal end, the proximal end including a stopper.

16. A bone material dispensing system comprising a bone material dispensing gun comprising a housing having a proximal end, a distal end, and a longitudinal axis, the proximal end having a first opening and the distal end having a second opening, the first opening and the second opening configured to slidably receive at least a portion of a plunger, and a locking member pivotably connected to an upper surface of the housing and extending adjacent to the upper surface of the housing, the locking member comprising a locking surface extending adjacent to the distal end of the housing, the locking member being movable in a locking position to lock the portion of the tubular member, the funnel, or the combination thereof with the housing; and a tray engageable with the bone material dispensing gun for loading the bone material dispensing gun with bone material.

17. The bone material dispensing system of claim 16 , wherein the tray is engagable with a distal end of the tubular member and the plunger.

18. The bone material dispensing system of claim 17 , wherein the tray comprises a slot configured to receive the tubular member, a ledge on a lower surface of the tray configured to receive a portion of the plunger, an upper surface configured for dispensing the bone material, and a groove defined from the upper surface configured to receive a cannula.

Assignees

• Warsaw Orthopedic Inc

Inventors

• Deridder Steven D
• Goosby Ralph D
• Vasquez Erick
• Dewey Jonathan M

Classifications

• A61B17/8816

  characterised by the conduit, e.g. tube, along which fluid flows into the body or by conduit connections · CPC title

• A61F2/4601 Primary

  for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity · CPC title

• A61B2017/00407

  Ratchet means · CPC title

• A61B17/8822

  characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum · CPC title

• A61B17/8819 Primary

  characterised by the introducer proximal part, e.g. cannula handle, or by parts which are inserted inside each other, e.g. stylet and cannula (A61B17/8825 takes precedence) · CPC title