Battery Pack Sleep Mode Control Circuit for Surgical Instruments
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current surgical stapling instruments lack efficient battery management systems, leading to unnecessary energy drainage and potential battery life mismanagement, which can impact the operational reliability and efficiency during surgical procedures.
Innovation Solution
The integration of an independent control circuit within the battery pack that autonomously manages power supply and sleep mode, allowing it to shut down or enter sleep mode independently of the handle assembly's control circuit, thereby preventing unnecessary energy drainage and optimizing battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery pack remains continuously powered to ensure immediate operational readiness, then the instrument can respond instantly to surgical needs, but energy is wasted and battery life is reduced
Solution Approach 1:
The battery pack control circuit dynamically transitions between operational mode and sleep mode based on communication status with the handle assembly. When no communication is detected, the circuit enters sleep mode to conserve energy; when communication is established, it transitions to operational mode for immediate responsiveness.
Solution Approach 2:
The control circuit changes operational parameters by adjusting power supply states to different circuit components. During sleep mode, power is reduced or cut to non-essential circuits while maintaining minimal monitoring capability. In operational mode, full power is restored to all circuits for complete functionality.
2Loss of energy
If the battery pack enters sleep mode to conserve energy, then energy efficiency is improved, but the response time to become operational increases
Solution Approach 1:
The control circuit performs preliminary actions by maintaining a ready state where minimal monitoring continues during sleep mode. This allows the circuit to detect communication requests immediately and transition to operational mode without full shutdown, reducing response time while maintaining energy efficiency.
Solution Approach 2:
The system implements dynamic power management where the control circuit can rapidly switch between power states. The transition from sleep mode to operational mode is optimized to occur quickly upon detecting a communication signal, balancing energy conservation with operational responsiveness.
3Duration of action of stationary object
If the battery pack has autonomous control capability to manage sleep mode, then battery life management is optimized, but the device complexity increases
Solution Approach 1:
The battery pack control circuit provides self-service by autonomously monitoring communication status and determining when to enter or exit sleep mode without external control. This self-management capability optimizes battery life while the circuit complexity is justified by the autonomous decision-making functionality.
Solution Approach 2:
The control circuit performs multiple functions: power management, communication monitoring, mode transition control, and battery life optimization. By consolidating these functions into a single integrated control circuit, the patent achieves autonomous operation while managing complexity through functional integration.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An apparatus includes a handle assembly and a battery pack. The handle assembly includes a housing and a first control circuit located within the housing. The battery pack assembly includes a power supply and a second control circuit. The power supply is configured to selectively transition from a first state to a second state. The power supply is configured to energize the first control circuit of the handle assembly in the first state. The power supply is configured to not energize the first control circuit of the handle assembly in the second state. The second control circuit is configured to transition the power supply between the first state and the second state.