Hip joint instrument and method

Patent metadata

Field	Value
Publication number	US-2016270798-A1
Application number	US-201615005060-A
Country	US
Kind code	A1
Filing date	Jan 25, 2016
Priority date	Jul 10, 2009
Publication date	Sep 22, 2016
Grant date	—

Abstract

A surgical pelvic drill for operating hip osteoarthritis adapted to create a hole in the pelvic bone of a human patient is provided. The pelvic drill is adapted to create a through-going hole placed in the acetabulum area from the abdominal side of the pelvic bone of the human patient. The pelvic drill comprises: a driving member, a bone contacting organ in connection with said driving member, an operating device adapted to operate said driving member. The bone contacting organ is adapted to create a hole in the acetabulum area starting from the abdominal side of the pelvic bone through repetitive or continuous movement. A surgical and a laparoscopic/arthroscopic method of using said pelvic drill is further provided.

First claim

1 . A pelvic drill for creating a through-going hole in the pelvic bone of a human patient, the pelvic drill comprising an internal portion adapted to be placed inside the body of a patient, when in use, and an external portion adapted to be kept outside of the body of the patient when in use, the pelvic drill comprising:
a driving member, a bone contacting organ in connection with the driving member being a part of the internal portion and being adapted for bone and/or cartilage drilling in the pelvic bone, an operating device adapted to operate said driving member, wherein said bone contacting organ is adapted to create the hole in the acetabulum area, starting from the abdominal side of the pelvic bone of the human patient.

2 . The pelvic drill according to claim 1 , wherein said pelvic drill is adapted to be operated by said operating device from the abdominal side of the pelvic bone of the human patient.

3 . The pelvic drill according to claim 1 , wherein said operating device is a part of the external portion.

4 . The pelvic drill according to claim 1 , wherein said operating device is a part of the internal portion.

5 . The pelvic drill according to any one of the preceding claims, wherein the driving member is adapted to be operated on the abdominal side of the pelvic bone.

6 . The pelvic drill according to any one of the preceding claims, wherein said pelvic drill comprises at least one bend such that the internal portion of the pelvic drill can be introduced through the skin of the patient and moved down the pelvic bone to a position on the opposite side of the acetabulum for creating a hole in the pelvic bone from the abdominal side thereof and further into the hip joint.

7 . The pelvic drill according to claim 6 , wherein said bend is bent with an angle in the interval 10-20 degrees or 20-30 degrees or 30-40 degrees or 40-50 degrees or 50-60 degrees.

8 . The pelvic drill according to any one of the preceding claims, wherein the external portion further comprises a handle, wherein the length of the pelvic drill is adapted to reach from the handle and to the area of the pelvic bone opposite to the acetabulum for creating a hole in the pelvic bone.

9 . The pelvic drill according to claim 8 , wherein the distance between the end of said handle and said bend is in the interval 10-20 cm or in the interval 20-30 cm or in the interval 30-40 cm or in the interval 40-50 cm.

10 . The pelvic drill according to any one of claims 6 - 9 , wherein the distance between said bend and the bone contacting organ is in the interval 2-4 cm or in the interval 4-6 cm or in the interval 6-8 cm or in the interval 10-12 cm or in the interval 12-14 cm.

11 . The pelvic drill according to any one of the preceding claims, wherein internal portion comprises a plurality of connectable parts adapted to be connected after insertion into the patient for forming the internal portion of the medical device.

12 . The medical device according to any one of the preceding claims, wherein the internal portion comprises a first part comprising the bone contacting organ, and a second part comprising the driving member, and wherein the first and second parts are adapted to be connected after insertion into the body of the patient for at least partially forming the internal portion of the pelvic drill.
Comprising an Angle

13 . The pelvic drill according to any one of the preceding claims, wherein said driving member comprises an angle adjustment device for adjusting the angle of the bone contacting organ towards the pelvic bone.

14 . The pelvic drill according to claim 13 , wherein said angle adjustment device comprises a fixed angle.

15 . The pelvic drill according to claim 13 , wherein said angle adjustment device comprises an adjustable angle.

16 . The pelvic drill according to any one of the preceding claims, wherein said pelvic drill comprises a parallel displaced part or section.

17 . The pelvic drill according to claim 13 , wherein said pelvic drill is adapted to be bent by means of at least one gear wheel.

18 . The pelvic drill according to claim 13 , wherein said pelvic drill is adapted to be bent by means of at least one universal joint.

19 . The pelvic drill according to any one of the preceding claims, wherein said driving member comprises at least one element selected from a group consisting of:
a. a worm gear, b. a chain, c. a driving belt d. a universal joint, and e. a gear wheel.

20 . The pelvic drill according to any one of the preceding claims, wherein said operating device is electrically operated.

21 . The pelvic drill according to claim 20 , wherein said operating device comprises an electrical motor.

22 . The pelvic drill according to any one of the preceding claims, wherein said operating device is hydraulically operated.

23 . The pelvic drill according to claim 22 , wherein said operating device comprises a hydraulic pump.

24 . The pelvic drill according to any one of the preceding claims, wherein said operating device is battery powered.

25 . The pelvic drill according to claim 24 , wherein said battery is integrated in said pelvic drill.

26 . The pelvic drill according to any one of the preceding claims, wherein said pelvic drill further comprises a device for measurement of the depth of said hole.

27 . The pelvic drill according to any one of the preceding claims, wherein said pelvic drill further comprises at least one camera.

28 . The pelvic drill according to any one of the preceding claims, wherein said pelvic drill further comprises at least one light source.

29 . The pelvic drill according to any one of the preceding claims, wherein said pelvic drill is adapted to make a bone plug.

30 . The pelvic drill according to claim 29 , wherein said pelvic drill further comprises a gripping device for gripping said bone plug.

31 . The pelvic drill according to claim 1 , wherein said pelvic drill is adapted to make pieces of bone smaller than 1 cubic cm. when creating said hole.

32 . The pelvic drill according to claim 31 , wherein said pelvic drill further comprises a device for transport of said pieces of bone.

33 . The pelvic drill according to claim 1 , wherein said pelvic drill further comprises a device for measurement of torque.

34 . The pelvic drill according to claim 33 , wherein the operating device and/or the driving member is connected to the device for measurement of torque such that the operating device and/or driving member can be turned off when the torque is below a predefined value for stopping the bone contacting organ when the hole in the pelvic bone has been created.

35 . The pelvic drill according to any one of the preceding claims, wherein said pelvic drill further comprises a stabilizing drill.

36 . The pelvic drill according to any one of the preceding claims, wherein said bone contacting organ is further adapted to drill in cartilage.

37 . The pelvic drill according to any one of the preceding claims, wherein said bone contacting organ is replaceable by a reaming organ adapted to ream an acetabulum or a caput femur.

38 . The pelvic drill according to claim 37 , wherein said reaming organ is ex

Assignees

• Forsell Peter

Inventors

• Forsell Peter

Classifications

• A61F2220/0025

  Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements · CPC title

• A61F2002/30818

  castellated or crenellated · CPC title

• A61B17/1624

  Drive mechanisms therefor · CPC title

• A61F2002/30957

  using a positive or a negative model, e.g. moulds · CPC title

• A61F2/4607

  of hip femoral endoprostheses · CPC title