Acetabular cup having a wireless communication device

• US 8,641,771 B2
• Filed: 09/29/2006
• Issued: 02/04/2014
• Est. Priority Date: 09/29/2006
• Status: Expired due to Fees

• Current Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Original Assignee: DePuy Synthes Products LLC (Johnson & Johnson)
• Inventors: Caylor, Edward J. III
• Primary Examiner(s): Isabella, David
• Assistant Examiner(s): Sharma, Yashita
• Application Number:
  US11/537,359
• Publication Number:
  US 20080133022A1
• Time in Patent Office: 2,685 Days
• Field of Search: 623/18.12, 623/22.21, 623/20.14
• US Class Current: 623/22.28
• CPC Class Codes: A61B 2560/0219 of externally powered implanted units
• CPC Class Codes: A61B 5/03 Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs A61B5/205 takes precedence
• CPC Class Codes: A61B 5/076 Permanent implantations telemetry using implanted circuitry A61B5/0031; implanted stimulators for therapy A61N1/3605, A61N1/362, A61N1/372
• CPC Class Codes: A61B 5/4528 Joints A61B5/4533, A61B5/4538 take precedence
• CPC Class Codes: A61B 5/6846 specially adapted to be brought in contact with an internal body part, i.e. invasive
• CPC Class Codes: A61F 2/30771 applied in original prostheses, e.g. holes or grooves
• CPC Class Codes: A61F 2/3094 Designing or manufacturing processes
• CPC Class Codes: A61F 2/34 Acetabular cups
• CPC Class Codes: A61F 2002/30153 rectangular
• CPC Class Codes: A61F 2002/302 toroidal, e.g. rings
• CPC Class Codes: A61F 2002/30289 helically-coiled
• CPC Class Codes: A61F 2002/30367 with additional means for preventing said rotation
• CPC Class Codes: A61F 2002/30403 Longitudinally-oriented cooperating ribs and grooves on mating lateral surfaces of a mainly longitudinal connection
• CPC Class Codes: A61F 2002/30448 using adhesives
• CPC Class Codes: A61F 2002/30449 the adhesive being cement
• CPC Class Codes: A61F 2002/30589 Sealing means
• CPC Class Codes: A61F 2002/3067 for data transfer
• CPC Class Codes: A61F 2002/3071 Identification means; Administration of patients
• CPC Class Codes: A61F 2002/30822 Circumferential grooves
• CPC Class Codes: A61F 2002/30825 arcuate
• CPC Class Codes: A61F 2002/30957 : using a positive or a negative model, e.g. moulds
• CPC Class Codes: A61F 2002/3241 : having a ring, e.g. for locking the femoral head into the acetabular cup
• 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 2220/005 : using adhesives
• CPC Class Codes: A61F 2230/0019 : rectangular
• CPC Class Codes: A61F 2230/0065 : toroidal, e.g. ring-shaped, doughnut-shaped
• CPC Class Codes: A61F 2230/0091 : helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
• CPC Class Codes: A61F 2250/0002 : for data transfer
• CPC Class Codes: A61F 2250/0085 : Identification means; Administration of patients
• CPC Class Codes: A61F 2310/00023 : Titanium or titanium-based alloys, e.g. Ti-Ni alloys
• CPC Class Codes: Y10T 156/1064 : Partial cutting [e.g., grooving or incising]

Abstract

A orthopaedic implant comprises an acetabular cup and a wireless communication device. The wireless communication device is coupled to a rim surface of the acetabular cup. In one embodiment, a recess is defined in the rim surface and the wireless communication device is positioned therein. In another embodiment, the wireless communication device is positioned in an annular ring formed of a biocompatible material. The annular ring is coupled to the rim surface of the acetabular cup. The wireless communication device may be, for example, a radio frequency identification (RFID) tag or device.

Claims

1. An acetabular cup comprising:

an outer surface configured to confront a portion of an acetabulum of a patient when the acetabular cup is implanted in the patient;

an inner surface forming an inner cavity configured to receive a bearing insert;

a rim surface defined between the outer surface and the inner surface, the rim surface having a recess defined therein; and

a wireless communication device positioned in the recess of the rim surface.

2. The acetabular cup of claim 1, wherein the rim surface comprises a rim surface having an annular recess defined therein.

3. The acetabular cup of claim 1, wherein the wireless communication device comprises a radio frequency identification (RFID) tag.

4. The acetabular cup of claim 1, wherein the wireless communication device comprises:

a transponder circuit; and

an antenna.

5. The acetabular cup of claim 4, wherein the antenna is a coil antenna.

6. The acetabular cup of claim 4, wherein the transponder circuit is configured to transmit identification data associated with the acetabular cup.

7. The acetabular cup of claim 6, wherein the transponder circuit is configured to transmit the identification data in response to an interrogation signal received via the antenna.

8. The acetabular cup of claim 1, wherein the wireless communication device is configured to transmit data using a frequency in the range of 30 kilohertz to 30 megahertz.

9. The acetabular cup of claim 1, further comprising a sensor electrically coupled to the wireless communication device and configured to generate sensor data, wherein the wireless communication device is configured to transmit the sensor data.

10. The acetabular cup of claim 1, wherein the wireless communication device is secured in the recess via a biocompatible compound.

11. The acetabular cup of claim 1, wherein

the inner surface of the acetabular cup has an outer edge,

the outer surface of the acetabular cup has an outer edge, and

the rim surface of the acetabular cup runs along the outer edge of the inner surface and the outer edge of the outer surface.

12. The acetabular cup of claim 11, wherein the rim surface of the acetabular cup is substantially planar and annular.

13. The acetabular cup of claim 12, wherein

the rim surface has an annular length about the outer edges of the inner surface and outer surface, and

the recess has a substantially annular top profile and extends the annular length of the rim surface.

14. The acetabular cup of claim 1, wherein

the inner surface of the acetabular cup has an annular outer edge,

the outer surface of the acetabular cup has an annular outer edge, and

the rim surface is substantially annular and planar and joins the annular outer edge of the inner surface to the annular outer edge of the outer surface.

15. The acetabular cup of claim 14, wherein the recess in the rim surface has a substantially annular top profile.