Hip Joint Replacement Device Segmentation

Solution Overview

Problem

Current surgical methods for hip joint osteoarthritis are invasive, requiring large incisions and leading to prolonged recovery times and increased risk of blood clots due to the need to penetrate the fibrous capsule and affect large blood vessels.

Innovation Solution

A medical device comprising an elongated member with a first portion that can pass through a hole in a bone, allowing for minimally invasive delivery of mechanical elements, such as tools or prosthetic parts, to the hip joint area, reducing tissue damage and recovery time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional surgical methods are used to replace hip joint parts, then the joint can be replaced with a prosthesis, but the surgery requires large incisions, penetration of the fibrous capsule, and affects large blood vessels, leading to prolonged recovery time and increased risk of blood clots

Engineering Contradiction:

Improvesuccess of hip joint replacementVSAvoidrecovery time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The surgical approach is segmented into separate access paths: one for inserting the femoral prosthesis through the femur bone and another for inserting the acetabular cup through the pelvic bone. This segmentation allows each component to be implanted through smaller, more targeted incisions rather than requiring a single large incision that penetrates the fibrous capsule and affects major blood vessels, thereby reducing recovery time and complication risks while maintaining reliable joint replacement

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces specialized surgical instruments as intermediaries to achieve minimally invasive access. These instruments include a guide needle inserted through the femur to deliver the femoral prosthesis, and a separate access instrument inserted through the pelvic bone to deliver the acetabular cup. These intermediary tools enable precise delivery of prosthetic components through small bone channels without requiring large soft tissue incisions or capsule penetration, thus reducing recovery time while ensuring reliable implantation

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If traditional surgical methods are used to replace hip joint parts, then the joint can be replaced with a prosthesis, but the surgery requires large incisions and affects large blood vessels, increasing the risk of blood clots

Engineering Contradiction:

Improvesuccess of hip joint replacementVSAvoidrisk of blood clots

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The surgical approach is segmented into separate access paths: one for inserting the femoral prosthesis through the femur bone and another for inserting the acetabular cup through the pelvic bone. This segmentation allows each component to be implanted through smaller, more targeted incisions rather than requiring a single large incision that penetrates the fibrous capsule and affects major blood vessels, thereby reducing recovery time and complication risks while maintaining reliable joint replacement

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces specialized surgical instruments as intermediaries to achieve minimally invasive access. These instruments include a guide needle inserted through the femur to deliver the femoral prosthesis, and a separate access instrument inserted through the pelvic bone to deliver the acetabular cup. These intermediary tools enable precise delivery of prosthetic components through small bone channels without requiring large soft tissue incisions or capsule penetration, thus reducing recovery time while ensuring reliable implantation

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If traditional surgical methods are used to replace hip joint parts, then the joint can be replaced with a prosthesis, but large incisions and extensive tissue disruption are required

Engineering Contradiction:

Improvesuccess of hip joint replacementVSAvoidinvasiveness of surgery

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The surgical approach is segmented into separate access paths: one for inserting the femoral prosthesis through the femur bone and another for inserting the acetabular cup through the pelvic bone. This segmentation allows each component to be implanted through smaller, more targeted incisions rather than requiring a single large incision that penetrates the fibrous capsule and affects major blood vessels, thereby reducing recovery time and complication risks while maintaining reliable joint replacement

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces specialized surgical instruments as intermediaries to achieve minimally invasive access. These instruments include a guide needle inserted through the femur to deliver the femoral prosthesis, and a separate access instrument inserted through the pelvic bone to deliver the acetabular cup. These intermediary tools enable precise delivery of prosthetic components through small bone channels without requiring large soft tissue incisions or capsule penetration, thus reducing recovery time while ensuring reliable implantation

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250032132A1Medical Device and method for treatment of a hip joint

Publication Date: 2025.01.30 FORSELL PETER

AI summary

A medical device for delivering an action to an area of a hip joint or its surroundings, inside a human body, is provided. The hip joint of a patient comprises a collum femur and a ball shaped caput femur, being the proximal parts of the femoral bone, and an acetabulum, being a bowl shaped part of the pelvic bone. The medical device comprising; an elongated member, having a length axis along its elongated distribution, comprising a first portion, adapted to enter the body of the patient, and a mechanical element, adapted to be used during an operation in the hip joint or its surroundings, inside the body. The first portion of the elongated member comprises a holding member adapted to hold the mechanical element inside the body of the patient, wherein the first portion of the elongated member have a first portion cross-section area substantially perpendicular to the length axis of the elongated member. The first portion is adapted to pass through a hole, in a bone of the patient, the hole having a hole cross-section area. The first portion cross-section area, is adapted to be smaller than said hole cross-section area. The mechanical element have a functional status, ready to deliver said action inside said body, when held by the holding member inside the body of the patient. The mechanical element is adapted to have a mechanical element cross-sectional area substantially perpendicular to the length axis of the elongated member, substantially larger than the first portion cross-sectional area and adapted to be unable to pass through the hole, when the mechanical element is in the functional status.