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Trocar

A trocar is a medical instrument used to gain access to a body cavity or organ.
It consists of a sharp, pointed obturator that is inserted through a cannula or sleeve, allowing for the introduction of other instruments.
Trocars are commonly used in minimally invasive surgical procedures, such as laparoscopy and arthroscopy, to create small incisions for the insertion of surgical tools.
The careful selection and usage of trocars is crucial for optimizing surgical outcomes and enhancing research reproducibility.
PubCompare.ai can help researchers identify the most accurate and reliable trocar protocols from the literature, pre-prints, and patents, providing insightful comparisons to ensure enhanced research accuracy and reproducibility.

Most cited protocols related to «Trocar»

1
Patient-Derived Pancreatic Cancer Xenografts

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Publication 2017
Anophthalmia with pulmonary hypoplasia Diagnosis Endoscopic Ultrasound-Guided Fine Needle Aspiration Heterografts Magnetic Resonance Imaging Males matrigel Mice, Nude Mouse, Swiss Neoplasms Operative Surgical Procedures Ovum Implantation Patients Rivers Tissues Trocar
2
Pressurized Intraperitoneal Aerosol Chemotherapy (PIPAC)
PIPAC is described in Fig. 1. After insufflation of a 12 mmHg of capnoperitoneum at 37 °C, two balloon trocars (Applied Medical, Düsseldorf) were placed. Explorative laparoscopy was performed as usual and PC index was determined.11 (link) Parietal biopsies were taken and ascites was removed. A nebulizer (MIP, Reger Medizintechnik, Rottweil) was connected to a high-pressure injector (Injektron 82M, MedTron, Saarbruecken) and inserted into the abdomen through a trocar. A pressurized aerosol containing cisplatin (Hexal, Barleben) at a dose of 7.5 mg/m2 body surface in 150 ml NaCl 0.9 % was applied immediately followed by doxorubicin (Hexal, Barleben) 1.5 mg/m2 in 50 ml NaCl 0.9 %. Then, the system was kept in steady-state for 30 min (application time). Toxic aerosol was exhausted over a closed system. Trocars were retracted. PIPAC was repeated two to five times at various time intervals. Occupational health safety aspects are described elsewhere.12

Pressurized intraperitoneal aerosol chemotherapy (PIPAC). The procedure is performed in an operating room equipped with laminar air-flow and is remote-controlled. In a first step, a normothermic capnoperitoneum is established with a pressure of 12 mmHg at body temperature. A chemotherapy solution (about 10 % of a normal systemic dose) is nebulized with a micropump into the tightly closed abdominal cavity, and maintained for 30 min. The toxic aerosol is then exhausted through a closed system and released into the external environment

Solass W., Kerb R., Mürdter T., Giger-Pabst U., Strumberg D., Tempfer C., Zieren J., Schwab M, & Reymond M.A. (2013). Intraperitoneal Chemotherapy of Peritoneal Carcinomatosis Using Pressurized Aerosol as an Alternative to Liquid Solution: First Evidence for Efficacy. Annals of Surgical Oncology, 21(2), 553-559.
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Publication 2013
Abdominal Cavity Ascites Biopsy Body Temperature Cisplatin Doxorubicin Drug Aerosol Therapy Human Body Insufflation Laparoscopy Nebulizers Normal Saline Pharmacotherapy Pressure Safety Sodium Chloride Trocar
3
Xenograft Tumor Implantation Protocol
Tumors or metastases were collected at surgical resection at University of Colorado Hospital (Aurora, CO). These studies were performed with institutional review board approval and informed consent of all patients. A trained pathologist identified normal versus tumor tissue from the surgical specimens and placed fresh procured tumor tissue into sterile vials on ice for transport. Female NOD/SCID or NOD/SCID/ILIIrg−/− mice age 4–7 weeks were purchased from Jackson Laboratories. All animal studies were performed under an IACUC approved protocol. For primary tumors, 5–10 mm3 pieces were dipped in Matrigel (BD Biosciences) and inserted into the #4 mammary fat pads of anesthetized recipient mice using a 10 gauge trochar. For pleural effusions or ascites, cells were collected by centrifugation, incubated for 2–3 min on ice with hemolysis buffer (BD Biosciences), collected by centrifugation, suspended in Matrigel, and injected into the #4 mammary fat pads with 27-gauge insulin syringes. A single silastic pellet containing 17β-estradiol was implanted into animals receiving ER+ tumor specimens, as determined by clinical pathology. Tumors were palpated weekly for assessment of tumor take and thereafter measured weekly, where possible, with a digital caliper. Tumor volume was estimated by the formula lw2/2.
Kabos P., Finlay-Schultz J., Li C., Kline E., Finlayson C., Wisell J., Manuel C.A., Edgerton S.M., Harrell J.C., Elias A, & Sartorius C.A. (2012). Patient-derived luminal breast cancer xenografts retain hormone receptor heterogeneity and help define unique estrogen-dependent gene signatures. Breast cancer research and treatment, 135(2), 10.1007/s10549-012-2164-8.
Publication 2012
Animals Ascites Breast Buffers Cells Centrifugation Estradiol Ethics Committees, Research Hemolysis Institutional Animal Care and Use Committees Insulin matrigel Mice, Inbred NOD Mus Neoplasm Metastasis Neoplasms Operative Surgical Procedures Pad, Fat Pathologists Patients Pleural Effusion SCID Mice Silastic Sterility, Reproductive Syringes Tissues Trocar Woman
4
Steady-State Haloperidol Concentrations in Mice
The goal was to achieve a human-like steady-state concentration of haloperidol (10–50 nanomoles/L, nM, or 3.75–19 ng/ml) 14 for a minimum of 30 days. Pilot studies showed that implantable pellets yielded considerably lower coefficients of variation in steady-state haloperidol concentrations in comparison to injections, implantable mini-pumps, or haloperidol in drinking water (Supplemental Methods, Table S2). Dose-ranging pilot studies in C57BL/6J mice indicated that 3.0 mg/kg/day (60 day release tablets) yielded plasma haloperidol concentrations in the 10–50 nM range. Haloperidol pellets (Innovative Research of America; Sarasota, FL) 15 (link) were implanted subcutaneously with a trocar under two minutes of isoflurane anesthesia (pilot studies indicated that anesthesia minimized handling stress and pain). Pellets of incremental dosages were implanted to compensate for varying body weights. Mice were followed for 120 days in total in order to examine changes in VCMs when haloperidol concentrations waned. Blood plasma was collected via tail nick for drug concentration assays after 30, 60, 90 and 120 days of exposure to haloperidol. Haloperidol assays were performed using mass spectrometry by the Analytical Psychopharmacology Laboratory at the Nathan Kline Institute for Psychiatric Research (Orangeburg, NY).
Crowley J.J., Adkins D.E., Pratt A.L., Quackenbush C.R., van den Oord E., Moy S.S., Wilhelmsen K.C., Cooper T.B., Bogue M.A., McLeod H.L, & Sullivan P.F. (2010). ANTIPSYCHOTIC-INDUCED VACUOUS CHEWING MOVEMENTS AND EXTRAPYRAMIDAL SIDE-EFFECTS ARE HIGHLY HERITABLE IN MICE. The pharmacogenomics journal, 12(2), 147-155.
Publication 2010
Anesthesia Biological Assay Body Weight Haloperidol Homo sapiens Infusion Pumps, Implantable Isoflurane Mass Spectrometry Mice, House Mice, Inbred C57BL Pain Pellets, Drug Pharmaceutical Preparations Plasma Tail Trocar
5
Colon Carcinoma Cachexia Model in BALB/c Mice
Cachexia was induced by subcutaneous grafting, using a trocar, of a 0.5 mm3 fragment of colon carcinoma (C26, obtained from the National Cancer Institute) in the dorsal region of 7-week-old BALB/c mice (Charles River, Wilmington, MA). The tumor was either taken from a frozen stock or dissected from a donor mouse within 30 min of the transplant. Tumors never went through more than 15 passages in vivo (1 passage defined as growth from transplant to 0.5-1 g). Animals were sacrificed 3 wks following tumor implantation, unless otherwise specified. Carcass weight was calculated as total body weight devoid of tumor weight. Mice were treated in strict accordance to the guidelines of the Institutional Animal Care and Use Committee and to relevant national and European legislation, throughout the experiments.
Aulino P., Berardi E., Cardillo V.M., Rizzuto E., Perniconi B., Ramina C., Padula F., Spugnini E.P., Baldi A., Faiola F., Adamo S, & Coletti D. (2010). Molecular, cellular and physiological characterization of the cancer cachexia-inducing C26 colon carcinoma in mouse. BMC Cancer, 10, 363.
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Publication 2010
Animals Body Weight Cachexia Cancer of Colon Donors Europeans Freezing Institutional Animal Care and Use Committees Mice, Inbred BALB C Mus Neoplasms Ovum Implantation Rivers Transplantation Trocar

Most recents protocols related to «Trocar»

1
Laparoscopic Gallbladder Procedure in Pigs
A pig was anesthetized with a mixture of alfaxalone (5 mg/kg), xylazine (2 mg/kg), and azaperone (6 mg/kg), and the following procedures were performed.

i) The 12-mm trocar was placed in the umbilicus of the pig and inflated with CO2 gas. Pneumoperitoneum was created and the intraabdominal pressure was maintained below 12 mmHg.

ii) Two additional ports were placed.

iii) The liver and gallbladder were identified under white light, and the gallbladder was pulled to the peritoneum.

iv) Five millimeters of SF solution was infused directly into the gallbladder. A small bile leak from the infused site was identified and clipped.

v) The biliary structures were observed under blue light emitted from an LED light source.

vi) The pig was euthanized at the end of the procedures.

Kim S., Lee C.M., Lee Y., Han H.J, & Song T.J. (2023). Laparoscopic fluorescence imaging technique for visualizing biliary structures using sodium fluorescein: the result of a preclinical study in a porcine model. Annals of Surgical Treatment and Research, 104(3), 144-149.
Publication 2023
Abdominal Cavity alfaxalone Azaperone Gallbladder Light Liver Peritoneum Pneumoperitoneum Pressure Trocar Umbilicus Xylazine
2
Laparoscopic Ventral Rectopexy Technique
All abdominal surgical approaches were performed using the laparoscopic ventral rectopexy method under general anesthesia regardless of the degree of rectal prolapse. All patients were placed in the lithotomy and Trendelenburg position after anesthesia, and a 12-mm trocar was inserted into the umbilicus for laparoscopic camera insertion, and four 5-mm trocars were inserted in each of the left and right upper and lower abdominal quadrants. The bowel was pulled out of the pelvis and the sigmoid colon was retracted to the left lateral side. The peritoneal opening was made in an inverted J-shape from the sacral cape to the left edge of the peritoneal reflex. The sterile polypropylene mesh (Prolene, Ethicon) was designed to have a length of 15 cm and a width of 2 cm. The mesh was properly positioned in the peritoneal opening, the lower end was sutured to the anterior wall of the rectum 2–3 cm from the edge of the anus, and the upper end was fixed to the right side of the periosteum of the sacral cape using ProTack (Covidien). The peritoneum opening was closed with continuous sutures using V-loc (Covidien) to prevent contact of the mesh with other organs in the abdomen.
Chung J.S., Ju J.K, & Kwak H.D. (2023). Comparison of abdominal and perineal approach for recurrent rectal prolapse. Annals of Surgical Treatment and Research, 104(3), 150-155.
Publication 2023
Abdomen Abdominal Cavity Anesthesia Anus CM 2-3 General Anesthesia Intestines Laparoscopy Operative Surgical Procedures Patients Pelvis Periosteum Peritoneum Polypropylenes Prolene Rectal Prolapse Rectum Reflex Sacrum Sigmoid Colon Sterility, Reproductive Sutures Trocar Umbilicus
3
Thoracoscopic Sympathectomy Technique
Under general anesthesia with single-lumen endotracheal tube, all patients were positioned in the semi-sitting supine position at 45° with both arms abducted to 90°. Trocar (5 mm) was placed in the 4th intercostal space on the bilateral anterior axillary line, a 5-mm camera was introduced and Trocar was removed. A microelectrocautery hook was inserted along the original incision upon the camera, and artificial pneumothorax and the respiratory suspension were used to keep pulmonary collapse. In group A, we sectioned the R3 rami communicantes by fulgurating 2-cm outward along the lateral edge of the sympathetic chain in 2–3 mm of the third rib, leaving R3 sympathetic chain untouched, then fulgurating R4 sympathetic chain and R4 rami communicantes along the fourth rib (Figure 1). In group B, R3 sympathetic chain and R3 rami communicantes were severed by fulgurating along the third rib. The incision was closed after lung aeration recruitment, and thoracic imaging tests were reexamined after surgery to ensure there was no evidence of a pneumothorax or hemothorax before patients were discharged from the hospital.
Huang Y., Liu Y., Zou W., Mao N., Tang J., Jiang L., Zou G., Yang L., Yu B, & Wei G. (2023). Impact of endoscopic thoracic R4 sympathicotomy combined with R3 ramicotomy for primary palmar hyperhidrosis. Frontiers in Surgery, 10, 1144299.
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Publication 2023
Arm, Upper Atelectasis Axilla General Anesthesia Hemothorax Lung Operative Surgical Procedures Patients Pneumothorax Pneumothorax, Artificial Respiratory Rate Trocar
4
Robotic Ureteral Anastomosis for Transplant
This study was approved by the Institutional Review Board of the Yonsei University College of Medicine (IRB no. 2022-0331-001). All the study protocols were performed in accordance with the principles of the Declaration of Helsinki. Written informed patient consent was waived owing to the retrospective nature of study. The patients were placed in a semi-lateral position similar to the position used for robotic nephrectomy. Pneumoperitoneum was established using the Veress needle technique. The port configuration is shown in Fig. 1. All ports were inserted under direct vision using a laparoscopic camera. The Da Vinci Xi system was docked after port insertion. The 12-mm trocar for the surgical assistant in the lower abdomen was used as a port for robotic instruments (using the piggy-back method) when an additional robotic arm was required [13 (link)]. In this situation, the 5-mm trocar in the subxyphoid area for liver traction was used as a port for the surgical assistant.
After docking the robot, the transplant ureter was dissected, and the stricture site was identified. Nephrectomy of the right native kidney was performed, and the native ureter was harvested. After trimming the native ureter to the appropriate length, the native ureter was attached to the transplant ureter by end-to-side anastomosis. Interrupted suture with 4-0 Vicryl was used for the anastomosis, and a double J ureteral stent was inserted.
Kim J., Yang S.J., Kim D.G., Han W.K, & Na J.C. (2023). Robotic ureter reconstruction using the native ureter to treat long-segment ureteral stricture of the transplant kidney utilizing Indocyanine green: The first Korean experience. Investigative and Clinical Urology, 64(2), 154-160.
Publication 2023
Abdominal Cavity Grafts Kidney Laparoscopy Liver Needles Nephrectomy Operative Surgical Procedures Patients Pharmaceutical Preparations Pneumoperitoneum Stenosis Stents Surgical Anastomoses Sutures Traction Trocar Ureter Vicryl Vision
5
Establishment of Guinea Pig Vascular Access
Male Hartley guinea pigs weighing 300–400 g were purchased from Chengdu Dossy experimental animals Co., Ltd. (Chengdu, China). Each guinea pig was assigned to the sham group (n = 5), ET group (n = 5), or ET + AA treatment group (n = 5). All animals were kept in standard conditions for 1 week as the acclimation period and they had free access to food and water. Then, the animals were restricted to food for 12 h and restricted to water for 2 h and anesthetized by IP injection of 40 mg/kg sodium pentobarbital. After shaving, a midline incision was made at the anterior neck, followed by blunt dissection to expose the right common carotid artery and the left external jugular vein. A tunnel under the skin was built using an anesthetic puncture trocar from the back of the neck to the edge of the midline incision. A PE50 tube filled with saline containing 500 IU/mL heparin was nested in the trocar and embedded in the tunnel by extracting the trocar. The outer end of the tube was connected to the heparin cap, and the inner end of the tube was intubated to each vessel. Immediately after the surgery, the animals were administrated a subcutaneous dose of meloxicam (1 mg/kg) and then were individually housed to recover for 24 h. The animal study protocol was approved by the Institutional Ethics Committee of the Institute of Blood Transfusion, Chinese Academy of Medical Sciences, and Peking Union Medical College (protocol code 2018032, approved on 31 Aug 2018).
Kong W., Zhou W., He Z., Zhang X., Li S., Zhong R, & Liu J. (2023). Polymerized human cord hemoglobin assisted with ascorbic acid as a red blood cell substitute alleviating oxidative stress for blood transfusion. Frontiers in Bioengineering and Biotechnology, 11, 1151975.
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Publication 2023
Acclimatization Anesthetics Animals Blood Transfusion Blood Vessel Cavia Chinese Common Carotid Artery Dissection Food Heparin Injections, Intraperitoneal Institutional Ethics Committees Jugular Vein Males Meloxicam Neck Operative Surgical Procedures Pentobarbital Sodium Punctures Saline Solution Skin Trocar

Top products related to «Trocar»

1
Matrigel by BD
Sourced in United States, United Kingdom, Germany, China, Canada, Japan, Italy, France, Belgium, Australia, Uruguay, Switzerland, Israel, India, Spain, Morocco, Austria, Brazil, Ireland, Netherlands, Montenegro, Poland, Denmark
Matrigel is a solubilized basement membrane preparation extracted from the Engelbreth-Holm-Swarm (EHS) mouse sarcoma, a tumor rich in extracellular matrix proteins. It is widely used as a substrate for the in vitro cultivation of cells, particularly those that require a more physiologically relevant microenvironment for growth and differentiation.
2
Ligasure by Medtronic
Sourced in United States, Ireland, Japan
The LigaSure is a surgical instrument manufactured by Medtronic. It is designed to seal blood vessels, tissue bundles, and lymphatics during surgical procedures by delivering a precise combination of pressure and energy. The LigaSure device provides controlled and consistent vessel sealing, enabling efficient tissue dissection and hemostasis.
3
Constellation vision system by Alcon
Sourced in United States, Germany
The Constellation Vision System is a surgical platform designed for ophthalmic procedures. It provides advanced control and precision for the surgeon during operations. The system integrates multiple components to support the surgical workflow.
4
Harmonic scalpel by Johnson & Johnson
Sourced in United States
The Harmonic scalpel is a surgical instrument used for cutting and coagulating tissue during various medical procedures. It utilizes high-frequency vibrations to simultaneously cut and seal blood vessels, minimizing blood loss and promoting faster healing. The core function of the Harmonic scalpel is to provide precise and efficient tissue dissection and hemostasis (control of bleeding) for the surgeon.
5
Vicryl by Johnson & Johnson
Sourced in United States, Germany, Brazil, France, Australia, Italy
Vicryl is a sterile, absorbable surgical suture material composed of a copolymer of glycolic acid and lactic acid. It is designed for use in general soft tissue approximation and/or ligation, including use in ophthalmic procedures.
6
17β estradiol by Innovative Research
Sourced in United States
17β-estradiol is a naturally occurring steroid hormone and the primary female sex hormone. It is a key component in cell signaling and plays a critical role in the development and function of the female reproductive system. This compound is commonly used in research applications to study the physiological effects of estrogen.
7
V loc by Medtronic
Sourced in Ireland, United States
The V-loc is a laboratory equipment product manufactured by Medtronic. It is designed for use in various laboratory settings. The core function of the V-loc is to provide a reliable and efficient tool for laboratory tasks, but a detailed description cannot be provided while maintaining an unbiased and factual approach.
8
17β estradiol pellet by Innovative Research
Sourced in United States
17β-estradiol pellets are a type of laboratory equipment used for research purposes. They are formulated to release a controlled and consistent amount of the hormone 17β-estradiol over an extended period of time. The core function of these pellets is to provide a reliable source of this hormone for various experimental studies.
9
Matrigel by Corning
Sourced in United States, China, Germany, United Kingdom, Canada, Japan, France, Netherlands, Montenegro, Switzerland, Austria, Australia, Colombia, Spain, Morocco, India, Azerbaijan
Matrigel is a complex mixture of extracellular matrix proteins derived from Engelbreth-Holm-Swarm (EHS) mouse sarcoma cells. It is widely used as a basement membrane matrix to support the growth, differentiation, and morphogenesis of various cell types in cell culture applications.
10
Da vinci si surgical system by Intuitive Surgical
Sourced in United States
The da Vinci Si Surgical System is a robotic-assisted surgical device designed for minimally invasive surgery. It is composed of a console where the surgeon sits and controls the robotic arms, and a patient-side cart with four robotic arms that hold the surgical instruments. The system allows the surgeon to perform complex surgical procedures with enhanced precision, flexibility, and control.

More about "Trocar"

Trocars are a crucial medical instrument used in minimally invasive surgical procedures, such as laparoscopy and arthroscopy.
These sharp, pointed devices are inserted through a cannula or sleeve, allowing for the introduction of other surgical tools like the Harmonic Scalpel, LigaSure, and Constellation Vision System.
The careful selection and usage of trocars is vital for optimizing surgical outcomes and enhancing research reproducibility.
PubCompare.ai, an AI-driven platform, can help researchers identify the most accurate and reliable trocar protocols from the literature, pre-prints, and patents, providing insightful comparisons to ensure enhanced research accuracy and reproducibility.
Additionally, other related terms and concepts, such as Matrigel, Vicryl, 17β-estradiol, V-loc, and 17β-estradiol pellets, may be relevant in the context of trocar usage and surgical procedures.
Researchers can leverrage PubCompare.ai to effortlessly locate the best protocols, while also considering the impact of these other factors on their research.
By optimizing trocar usage and incorporating relevant insights, researchers can enhance the accuracy and reproducibility of their studies, leading to more reliable and impactful findings.