Device and method for moving fill material to an implant

• US 20070161962A1
• Filed: 01/09/2006
• Published: 07/12/2007
• Est. Priority Date: 01/09/2006
• Status: Abandoned Application

• Current Assignee: Warsaw Orthopedic Incorporated (Medtronic Plc)
• Original Assignee: Warsaw Orthopedic Incorporated (Medtronic Plc)
• Inventors: White, John, Schwender, James, Edie, Jason
• Application Number:
  US11/327,888
• Publication Number:
  US 20070161962A1
• Time in Patent Office: Days
• US Class Current: 604/257
• CPC Class Codes: A61F 2/4455 for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages intervertebral discs A61F2/442
• CPC Class Codes: A61F 2/4601 for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
• CPC Class Codes: A61F 2/4603 for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2002/2835 Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
• CPC Class Codes: A61F 2002/30235 tubular, e.g. sleeves
• CPC Class Codes: A61F 2002/30332 Conically- or frustoconically-shaped protrusion and recess
• CPC Class Codes: A61F 2002/30405 made by screwing complementary threads machined on the parts themselves
• CPC Class Codes: A61F 2002/30581 having a pocket filled with fluid, e.g. liquid
• CPC Class Codes: A61F 2002/30601 telescopic
• CPC Class Codes: A61F 2002/30617 Visible markings for adjusting, locating or measuring
• CPC Class Codes: A61F 2002/4627 with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
• CPC Class Codes: A61F 2002/4629 connected to the endoprosthesis or implant via a threaded connection
• CPC Class Codes: A61F 2220/0025 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2250/0097 Visible markings, e.g. indicia
• CPC Class Codes: A61M 2025/0675 Introducing-sheath slitters
• CPC Class Codes: A61M 25/0662 Guide tubes

Abstract

Devices and methods for inserting an implant within a patient. The device may generally include an insertion body, a supply reservoir, and a delivery device. The insertion body can be used for moving and positioning the implant within the body. In one embodiment, implant is mounted to the end of the body prior to movement and positioning. Fill material is maintained within the supply reservoir. Delivery device functions to move the fill material from the supply reservoir, through the insertion body, and to the implant. The device thus provides for both movement and placement of the implant, and a mechanism for delivering fill material to the implant.

Claims

1. A device to move fill material to an implant comprising:

an elongated rigid insertion body having a distal end spaced apart from a proximal end, the distal end having a threaded connection mechanism to attach directly to the implant;

a channel extending through the insertion body from the distal end to the proximal end;

a supply reservoir operatively connected to the channel to hold an amount of the fill material; and

a delivery device to move the fill material from the supply reservoir, through the channel, and out of the distal end to the implant.

2. The device of claim 1, wherein a section of the delivery device is sized to fit within and move through the proximal end of the insertion body to move the fill material from the supply reservoir through the distal end.

3. The device of claim 1, wherein the delivery device further comprises a handle to manipulate the connected insertion body and the implant.

4. The device of claim 1, wherein the supply reservoir is positioned distant from the channel.

5. The device of claim 1, further comprising a trigger mechanism to control the actuation of the delivery device.

6. The device of claim 1, further comprising a feedback mechanism operatively connected with the delivery device to limit a rate of the fill material that is delivered through the distal end.

7. The device of claim 1, further comprising a second supply reservoir operatively connected to the channel to hold a second amount of the fill material, the delivery device operatively connected to the second supply reservoir to move the fill material from the second supply reservoir, through the channel, and out of the distal end to the implant.

8. The device of claim 1, further comprising a spacer positioned between the delivery device and the distal end to move the fill material through the distal end.

9. A device to move fill material to an implant comprising:

an elongated rigid insertion body having a distal end and a spaced apart proximal end, the distal end having a connection mechanism to attach directly to the implant;

a channel extending through the insertion body from the distal end to the proximal end, the channel sized to contain the fill material; and

an elongated rigid delivery device having a first end and a second end, the first end sized to fit within the proximal end of the insertion body and fit through the channel and move the fill material within the channel out of the distal end of the insertion body and to the implant.

10. The device of claim 9, further comprising the proximal end of the insertion body and the first end of the delivery device being threaded for threadingly engaging the insertion body and the delivery device.

11. The device of claim 9, wherein the distal end of the insertion body has a tapered configuration that fits within an aperture in the implant.

12. The device of claim 9, further comprising a spacer positioned within the channel between the delivery device and the distal end, the spacer sized to move along the channel and move the fill material out of the distal end.

13. A method of placing an implant within a patient and moving fill material to the implant, the method comprising the steps of:

prior to insertion of the implant, placing fill material within a supply reservoir;

connecting a distal end of an insertion body to the implant;

manipulating the insertion body to position the implant within the patient;

while the insertion body is still attached to the implant, moving the fill material from the supply reservoir through the insertion body and to the implant; and

thereafter, disconnecting the insertion body from the implant and removing the insertion device from the patient.

14. The method of claim 13, wherein the step of connecting the distal end of the insertion body to the implant comprises threading the distal end onto the implant.

15. The method of claim 13, wherein the step of connecting the distal end of the insertion body to the implant comprises press fitting the distal end into an aperture in the implant.

16. The method of claim 13, wherein the step of manipulating the insertion body comprises connecting a delivery device to the insertion body and controlling movement of the implant and the insertion body through manipulations of the delivery device.

17. The method of claim 13, wherein the step of moving the fill material from the supply reservoir through the insertion body and to the implant comprises inserting and moving an instrument through a section of the insertion body and moving the fill material to the implant.

18. The method of claim 13, wherein the step of moving the fill material from the supply reservoir through the insertion body and to the implant comprises actuating a trigger on the delivery device to apply a pressure to the fill material in the supply reservoir.

19. The method of claim 13, wherein the step of moving the fill material from the supply reservoir through the insertion body and to the implant comprises actuating a handle with each actuation moving a predetermined amount of the fill material from the supply reservoir into the insertion device.

20. The method of claim 13, further comprising re-connecting the insertion body to the implant and moving additional fill material from the supply reservoir to the implant.

21. The method of claim 13, further comprising simultaneously moving the fill material to the implant and contacting the implant with the distal end to position the implant within the patient.

22. The method of claim 13, further comprising moving the fill material from a second supply reservoir through the insertion body and to the implant.

23. A method of placing an implant within a patient and moving fill material to the implant, the method comprising the steps of:

prior to insertion of the implant, placing fill material within a supply reservoir;

manipulating an insertion body connected to the supply reservoir and positioning the implant within the patient;

while positioning the implant, moving the fill material from the supply reservoir through the insertion body and to the implant; and

thereafter, removing the insertion device from the patient.

24. The method of claim 23, further comprising press fitting a distal end of the insertion body into an aperture in the implant.