Medical Device Suction Member Sealing Bursiform Cavity
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Solution Overview
Problem
Current methods for treating inflammation in bursiform cavities, such as abscesses or appendicitis, lack an efficient and effective means to apply negative pressure locally within the body, often requiring invasive procedures and inadequate sealing techniques.
Innovation Solution
A medical device featuring a longitudinal axis member with a suction member and communication passages, a suction source, and a closing member that can be elastically deformed to seal the opening of the cavity, allowing for endoscopic application of negative pressure therapy, effectively treating bursiform cavities like the vermiform appendix.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sealing methods (adhesive drape, cavity shape) are used for negative pressure therapy, then the bursiform cavity can be sealed, but the sealing reliability is insufficient and may leak
Solution Approach 1:
The patent employs a flexible balloon as the closing member that can be inflated to seal the bursiform cavity. This flexible membrane structure adapts to the cavity shape while providing reliable sealing, replacing the inadequate adhesive drape and cavity shape-dependent methods with a controllable, expandable barrier that maintains negative pressure effectively.
Solution Approach 2:
The closing member (balloon) is inserted through the introducer into the bursiform cavity, nesting the sealing structure within the existing access pathway. This allows the sealing mechanism to be delivered through a minimally invasive route while deploying a sufficiently large sealing surface area to ensure reliable closure of the cavity opening.
2Reliability
If foam is used as a pressure distributor in negative pressure therapy, then the cavity can be contracted and outflow collected, but the foam cannot provide adequate sealing at the cavity opening
Solution Approach 1:
The closing member (balloon) serves multiple functions: it seals the cavity opening to maintain negative pressure, provides a stable base for the introducer, and can be inflated to various degrees to adapt to different cavity sizes. This single component replaces multiple separate sealing methods, offering both reliability and adaptability across different clinical scenarios.
3Productivity
If surgical procedures (drainage, excision, fistula formation) are performed to treat abscesses, then the abscess can be drained, but extensive tissue damage and invasive procedures are required
Solution Approach 1:
The patent extracts the harmful contents (pus, necrotic tissue, fluid) from the abscess cavity through the suction member connected to the negative pressure system. By removing the pathological material through suction rather than surgical excision or drainage, the treatment achieves effective abscess management while preserving the surrounding healthy tissue and avoiding extensive surgical intervention.
Solution Approach 2:
The patent replaces mechanical surgical procedures (excision, drainage, fistula formation) with a negative pressure suction system. Instead of using surgical instruments to physically remove or drain the abscess, the invention uses controlled negative pressure to suction out the contents through the suction member, substituting a less invasive mechanical approach for traditional surgical methods.
4Ease of operation
If conservative procedures (antibiotics, parenteral nutrition) are used to treat inflammation, then the patient can be treated non-surgically, but the treatment is not effective for localized negative pressure application
Solution Approach 1:
The patent introduces a closing member (balloon) as an intermediary structure that creates a sealed environment within the bursiform cavity. This intermediary sealing mechanism enables the effective application of negative pressure by preventing air leakage and maintaining the pressure differential, thereby making localized negative pressure therapy feasible and effective while avoiding the need for more invasive surgical procedures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and reliable application of negative pressure therapy, reducing inflammation by suctioning out fluids and necrotic tissue while maintaining airtight sealing, thereby alleviating symptoms and promoting healing without extensive tissue damage.
Implementation Method 1
a suction source which is provided at a proximal end of the longitudinal axis member so as to be connected to the lumen and the suction source suctioning the inner wall via the plurality of communication passages
Implementation Method 2
a closing member which is provided at an axial end of the suction member, the closing member coming into contact with the opening and airtightly sealing the opening
Implementation Method 3
the suction member having a contact surface for coming into close contact with an inner wall of the bursiform cavity when inserted into the bursiform cavity
Data Source
AI summary
A medical device includes a longitudinal axis member, a suction member that is provided at a distal end of the longitudinal axis member, has a contact surface capable of coming into close contact with an inner wall of a bursiform cavity when inserted into the bursiform cavity, and has a plurality of communication passages that are open to the contact surface and communicate with a lumen, a suction source provided at a proximal end of the longitudinal axis member so as to be connected to the lumen, and a closing member that is provided at an axial end of the suction member, comes into contact with the opening, and airtightly seals the opening.