Multifunctional Forceps for Use in Endoscopic Surgery—Initial Design, Prototype, and Testing

2011 ◽  
Vol 5 (4) ◽  
Author(s):  
Andrew C. Rau ◽  
Mary Frecker ◽  
Abraham Mathew ◽  
Eric Pauli
Keyword(s):  
Minimally Invasive ◽  
Surgical Procedures ◽  
Endoscopic Surgery ◽  
Model Prediction ◽  
Catastrophic Failure ◽  
Endoscopic Surgical Procedures ◽  
Force Application ◽  
Design Characteristics ◽  
Fail Safe ◽  
Good Agreement

This paper presents a 3.0 mm diameter multifunctional endoscopic forceps design for use in minimally invasive flexible endoscopic surgical procedures. Multifunctional capabilities including grasping, spreading, and cauterizing tissue are demonstrated experimentally and compared to commercially available forceps. Models of the proposed design predict considerable improvements in opening range (140%) and force application (87%) for both grasping and spreading when compared to currently used endoscopic forceps. Several of the tool’s design characteristics promote fail-safe malfunctions, including locking before catastrophic failure and a decreased likelihood in detached parts. Initial benchtop testing shows good agreement between prototype performance and model prediction. Frictional losses experienced during testing were found to depend on load orientation.

scholarly journals Design of a Multifunctional Forceps for Use in Endoscopic Surgery

2010 ◽  
Vol 4 (2) ◽  
Author(s):  
Andrew Rau ◽  
Mary Frecker ◽  
Abraham Mathew ◽  
Eric Pauli
Keyword(s):  
Minimally Invasive ◽  
Endoscopic Surgery ◽  
Minimally Invasive Surgical Procedures ◽  
Ex Vivo ◽  
Catastrophic Failure ◽  
Minimally Invasive Surgical ◽  
Design Characteristics ◽  
Fail Safe ◽  
Ex Vivo Testing ◽  
Good Agreement

This paper presents a 3.0 mm diameter endoscopic forceps design for use in minimally invasive surgical procedures, which require significant grasping and spreading forces. Models of the proposed design predict considerable improvements in the opening range (140%) and force application (87%) for both grasping and spreading when compared with currently used endoscopic forceps. Several of the tool’s design characteristics promote fail-safe malfunctions, including locking before catastrophic failure and the decreased likelihood in detached parts. Initial benchtop testing showed good agreement between prototype performance and model prediction. Frictional losses experienced during testing were found to depend on load orientation. A surgical prototype is currently being manufactured for ex vivo testing.

scholarly journals A Staged Treatment of Symptomatic Lumbar Intraspinal Synovial Cysts

2019 ◽  
Vol 5 (22;5) ◽  
pp. E451-E456
Author(s):  
Kyung-Hoon Kim
Keyword(s):  
Minimally Invasive ◽  
Surgical Procedures ◽  
Facet Joint ◽  
University Hospital ◽  
Pain Clinic ◽  
Level Of Evidence ◽  
Endoscopic Surgical Procedures ◽  
Number Of Patients ◽  
Synovial Cysts

Background: Lumbar intraspinal synovial cyst (LISC) refers to a cyst that arises from the zygapophyseal joint capsule of the lumbar spine and contains serous or gelatinous fluid. In cases of LISCs resistant to conservative treatments, various minimally invasive percutaneous spinal techniques (MIPSTs) may be applied prior to open surgery. Objectives: The outcomes of 3-staged MIPSTs for the treatment of symptomatic LISCs resistant to conservative treatments were evaluated. Study Design: An institutional review board approved retrospective chart review. Setting: University hospital inpatients referred to our pain clinic. Methods: Review of charts of all patients who underwent MIPSTs for symptomatic LISCs resistant to conservative treatments during a time period of 13 years at a university hospital pain clinic. Patients with symptomatic LISCs resistant to conservative treatments were treated with 3-staged MIPSTs, including image-guided intraarticular aspiration, cyst distention and rupture, and injection of corticosteroids (ARI), endoscopic cyst enucleation (ECE), and endoscopic superior facetectomy (ESF) by a single pain specialist. A symptom-free period after each intervention was evaluated. Recurrence was defined as the same recurrent symptomatic radicular pain with confirmation of the LISC on magnetic resonance imaging. All patients with a minimum follow-up time of 3 years were included. Results: Of the 40 patients who underwent ARI, 3 patients failed to complete a follow-up and 19 patients (51.4%) who had recurring symptoms received ECE. Ten patients (52.6%) who had rerecurring symptoms after ECE received ESF. There was no recurrence after ESF. Limitations: This retrospective and observational study with a limited number of patients does not represent a high level of evidence. Conclusions: This information provided the recurrence rate after each intervention. Half of the patients who went on to receive ARI experienced recurrence, whereas half of the patients with recurrence who received ECE experienced re-recurrence. ESF treatment resulted in no recurrence within the 3-year study period. Key words: Conservative treatment, endoscopic surgical procedures, facet joint, intraarticular injection, minimally invasive surgical procedures, needle biopsy, nerve root compression, radiculopathy, synovial cysts

scholarly journals The Rise of Tunnel Endoscopic Surgery: A Case Report and Literature Review

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Mingyan Cai ◽  
Jinzhong Chen ◽  
Pinghong Zhou ◽  
Liqing Yao
Keyword(s):  
Case Report ◽  
Literature Review ◽  
Surgical Procedures ◽  
Endoscopic Surgery ◽  
Natural Orifice ◽  
Endoscopic Surgical Procedures

There has been booming interest in natural orifice transluminal surgery since it was first described. Several techniques first developed for the safe transluminal access now derive into independent endoscopic surgical procedures. In this paper, we describe a case treated by a novel procedure by submucosal tunnelling technique and provide a literature review of the rise of tunnel endoscopic surgery.

scholarly journals Endoscopic Surgery of Congenital Cholesteatoma in the Anterior Epitympanic Recess: A Case Report of a Rare Location

2020 ◽  
pp. 014556132096924
Author(s):  
Hong Chan Kim ◽  
Hyung Chae Yang ◽  
Hyong-Ho Cho
Keyword(s):  
Case Report ◽  
Minimally Invasive ◽  
Middle Ear ◽  
Endoscopic Surgery ◽  
Minimally Invasive Approach ◽  
Ear Surgery ◽  
Invasive Approach ◽  
Congenital Cholesteatoma ◽  
Rare Location ◽  
Histopathological Type

Congenital cholesteatoma is a whitish mass in the middle ear medial to an intact tympanic membrane. It is often without symptoms and therefore incidentally diagnosed. Pediatric congenital cholesteatoma generally starts as a small pearl-like mass in the middle ear cavity that eventually expands to involve the ossicles, epitympanum, and mastoid. The location, size, histopathological type, and extent of the mass must be evaluated to select the appropriate surgical method. Although microscopic ear surgery has traditionally been performed to remove congenital cholesteatoma, a recently introduced alternative is endoscopic surgery, which allows a minimally invasive approach and has better visualization. Here, we report the first known case of a patient with congenital cholesteatoma in the anterior epitympanic recess and discuss the utility of an endoscopic approach in the removal of a congenital cholesteatoma in the hidden area within the middle ear.

The “Spacemaker”, a New Device for Minimally Invasive Cardiothoracic Surgery: An Evaluation and Feasibility Study

2015 ◽  
Vol 10 (4) ◽  
pp. 241-247
Author(s):  
Pieter W.J. Lozekoot ◽  
Sandro Gelsomino ◽  
Paul B. Kwant ◽  
Orlando Parise ◽  
Francesco Matteucci ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Surgical Procedures ◽  
Lung Tissue ◽  
Lung Ventilation ◽  
Cardiothoracic Surgery ◽  
Respiratory Compromise ◽  
One Lung Ventilation ◽  
New Device ◽  
Lead Placement ◽  
The Right

Objective Our aim was to evaluate a new inflatable lung retractor, the “Spacemaker”, and its efficacy in facilitating minimally invasive cardiothoracic surgery without the need of one lung ventilation or carbon dioxide overpressure insufflation. Methods The device was tested in 12 anesthetized pigs (90–100 kg) placed on standard endotracheal ventilation. The device was introduced into the right or left side of the chest, depending on the intended procedure to be performed, via a 3-cm incision in the fifth intercostal space. A total of seven animals were used to evaluate hemodynamic and respiratory response to the device, whereas another five animals were used to assess the feasibility of a variety of minimally invasive cardiothoracic surgical procedures. Results Introduction was easy and unhindered. The device was inflated up to 0.6 bar, thereby pushing the lung tissue gently away cranially, posteriorly, and caudally without interfering with pulmonary function or resulting in respiratory compromise. In addition, hemodynamics remained stable throughout the experiments. Different closed-chest surgical procedures such as left atrial appendage exclusion, pulmonary vein exposure, pacemaker lead placement, and endoscopic stabilization for coronary surgery, were successfully performed. Removal was quick and complete in all cases, and lung tissue showed no remnant atelectasis. Conclusions The “Spacemaker” may represent a reliable alternative to current conventional techniques to facilitate minimally invasive cardiothoracic surgery. Further research is warranted to confirm the effectiveness and the safety of this device and to optimize the model before its use in humans and its introduction into clinical practice.

Trends in the Implementation of Advanced Minimally Invasive Gynecologic Surgical Procedures in The Netherlands

2015 ◽  
Vol 22 (4) ◽  
pp. 642-647 ◽  
Author(s):  
Sara R.C. Driessen ◽  
Niki L.M. Baden ◽  
Erik W. van Zwet ◽  
Andries R.H. Twijnstra ◽  
Frank Willem Jansen
Keyword(s):  
The Netherlands ◽  
Minimally Invasive ◽  
Surgical Procedures ◽  
Gynecologic Surgical Procedures

scholarly journals Development of endoscopic surgery for the minimally invasive treatment of digestive and other diseases.

2001 ◽  
Vol 50 (3) ◽  
pp. 167-174 ◽  
Author(s):  
Toshiharu Furukawa ◽  
Masahiko Watanabe ◽  
Soji Ozawa ◽  
Yoshihide Otani ◽  
Go Wakabayashi ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Endoscopic Surgery ◽  
Minimally Invasive Treatment ◽  
Invasive Treatment

scholarly journals Surgical Treatment of Atrial Fibrillation

2021 ◽  
pp. 56-64
Author(s):  
Randall K Wolf
Keyword(s):  
Atrial Fibrillation ◽  
Surgical Treatment ◽  
Minimally Invasive ◽  
Surgical Procedures

The surgical treatment of atrial fibrillation (AF) has evolved significantly over the last 20 years and even more so in the last 5 years. There are now many clinically successful surgical procedures focused on eliminating AF and AF-related stroke. This review discusses the current types of surgical AF procedures, including minimally invasive and hybrid, and may assist clinicians in understanding the various surgical AF options available to patients today.

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