The Experts below are selected from a list of 816 Experts worldwide ranked by ideXlab platform
James A Greenberg - One of the best experts on this subject based on the ideXlab platform.
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VCare® Uterine Manipulator/Elevator
Reviews in Obstetrics and Gynecology, 2020Co-Authors: James A GreenbergAbstract:Overall, the VCare Uterine Manipulator/Elevator is a very solid, well-designed instrument. For those looking to perform laparoscopic hysterectomies without a predetermined Uterine Manipulator preference, this device is an excellent first choice. Over time, different surgeons may find more cost-effective or preferred options, but this is as good a place to start as any. Overall Score: 4
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pelosi Uterine Manipulator
Reviews in Obstetrics and Gynecology, 2011Co-Authors: James A GreenbergAbstract:The Pelosi Uterine Manipulator is a Cohen cannula on steroids. It is very versatile and it gives good value for your buck. Although I believe it has some shortcomings for total laparoscopic hysterectomies, for almost every other gynecologic laparoscopic procedure, it is very solid. If I could only have one Uterine Manipulator, this might be it. Overall Score: 4
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hohl Uterine Manipulator
Reviews in Obstetrics and Gynecology, 2011Co-Authors: James A GreenbergAbstract:If your hospital or practice primarily performs total hysterectomies rather than supracervical hysterectomies, then you owe it to yourself to try the HOHL Uterine Manipulator. But with such a hefty purchase price, you had better love it and plan to use it a lot if you are going to ask your hospital to buy it. Overall Score: 3
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vcare Uterine Manipulator elevator
Reviews in Obstetrics and Gynecology, 2009Co-Authors: James A GreenbergAbstract:Overall, the VCare Uterine Manipulator/Elevator is a very solid, well-designed instrument. For those looking to perform laparoscopic hysterectomies without a predetermined Uterine Manipulator preference, this device is an excellent first choice. Over time, different surgeons may find more cost-effective or preferred options, but this is as good a place to start as any. Overall Score: 4
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product lumin Uterine Manipulator
Reviews in Obstetrics and Gynecology, 2009Co-Authors: James A GreenbergAbstract:The LUMIN Uterine Manipulator is a solidly built, lower cost, single-use, disposable device. However, it does not seem to bring anything new to the table. Its cupless design makes it impractical for many of the more complex minimally invasive procedures and its single-use packaging makes it anti-green and a poor value. Overall Score: 1
Hakan Oflaz - One of the best experts on this subject based on the ideXlab platform.
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Development of Transvaginal Uterus Amputation Device for Laparoscopic Hysterectomies in Gynecologic Surgeries
Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020Co-Authors: Serkan Dikici, Hakan Eser, Erkin Gezgin, Ozgun Baser, Savas şahin, Bulent Yilmaz, Betül Aldemır, Utku Kürşat Ercan, Sefa Kelekci, Hakan OflazAbstract:Hysterectomy, that is removal of uterus, is one of the most common major operations in gynecologic surgeries. Laparoscopy technique is preferred in hysterectomy because of its advantages such as lower intra-operative blood loss, decreased surrounding tissue/organ damage, less operating time, lower postoperative infection and frequency of fever, shorter duration of hospitalization and post-operative returning time to normal activity. During total laparoscopic hysterectomy, first Uterine vessels and ligaments are cauterized respectively, and then cervicovaginal connections are cauterized and coagulated to remove uterus completely. Uterine Manipulators are used during laparoscopy to maximize the endoscopic vision of surgeons by moving related organs. However, conventional Uterine Manipulators have important drawbacks particularly to move uterus in three dimensions and to show cervicovaginal landmark during laparoscopic circular cauterization and amputation of the Uterine cervix. A new transvaginal Uterine Manipulator may overcome these two important drawbacks of these currently available devices. For this reason, a3D scanned technique was used to get uterus sizes and computer aided design software is used in designing of the new Manipulator and then 3D printer was used in prototyping. Special light emitting diodes (LEDs) were mounted on the cervical cap of the Manipulator to guide light beams from inside of cervicovaginal tissue to abdominal cavity to facilitate the visualization of tissue landmarks. Moreover, performances of different caps and LED systems will be evaluated. Furthermore, after integration of self-cutting and self-suturing mechanisms into our system, final prototype will be produced by using titanium which is biologically and mechanically appropriate. Therefore, aim of this study was to design and produce a new Uterine Manipulator with three dimensional movements, LED illumination, self-cutting and self-suturing systems to facilitate laparoscopic hysterectomy
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development of a 2 dof Uterine Manipulator with led illumination system as a new transvaginal uterus amputation device for gynecological surgeries
Minimally Invasive Therapy & Allied Technologies, 2018Co-Authors: Serkan Dikici, Betul Aldemir Dikici, Hakan Eser, Erkin Gezgin, Ozgun Baser, Savas şahin, Bulent Yilmaz, Hakan OflazAbstract:AbstractBackground: Hysterectomy, the most common major gynecological operation worldwide, consists of removal of the uterus and can be performed abdominally, vaginally, or laparoscopically. A Uterine Manipulator is a key device used for Uterine manipulation and cannulation in hysterectomies. The challenges of conventional Manipulators are to move the uterus in two distinct planes and to identify cervical landmarks during circular cut and coagulation.Material and methods: In this study, a structural synthesis of the two degrees of freedom parallel Manipulator was performed considering the constraints noted by surgeons. Computer-aided design and assembly of the Manipulator, the cervicovaginal cap with LEDs, and the external parts were performed before rapid prototyping. The final design of the Uterine Manipulator was then manufactured from stainless steel and tested on an artificial uterus model using a test chamber.Results: This article presents the design, production and testing processes of an innovativ...
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designing and prototyping a new Uterine Manipulator with two plane motion mechanism and led marker illumination system
National Biomedical Engineering Meeting, 2016Co-Authors: Hakan Oflaz, Serkan Dikici, Betul Aldemir Dikici, Hakan Eser, Erkin Gezgin, Ozgun Baser, Savas şahin, Bulent Yilmaz, Sorumlu YazarAbstract:Hysterectomy, that is removal of uterus, is one of the most common major operations in gynecologic surgeries. Laparoscopy technique is preferred in hysterectomy because of its advantages such as lower intra-operative blood loss, decreased surrounding tissue/organ damage, less operation time, lower post-operative infection and frequency of fever, shorter duration of hospitalization and post-operative returning time to normal activity.
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Designing and prototyping a new Uterine Manipulator with two plane motion mechanism and LED marker illumination system
2016 20th National Biomedical Engineering Meeting (BIYOMUT), 2016Co-Authors: Hakan Oflaz, Serkan Dikici, Betul Aldemir Dikici, Hakan Eser, Erkin Gezgin, Ozgun Baser, Savas şahin, Bulent Yilmaz, Sorumlu YazarAbstract:Hysterectomy, that is removal of uterus, is one of the most common major operations in gynecologic surgeries. Laparoscopy technique is preferred in hysterectomy because of its advantages such as lower intra-operative blood loss, decreased surrounding tissue/organ damage, less operation time, lower post-operative infection and frequency of fever, shorter duration of hospitalization and post-operative returning time to normal activity. Firstly Uterine vessels and ligaments are cauterized respectively, and then cervicovaginal connections are cauterized and coagulated to remove uterus completely during total laparoscopic hysterectomy (TLH). Uterine Manipulators are used during TLH to maximize the endoscopic vision of surgeons by moving related organs. However, conventional Uterine Manipulators have important drawbacks particularly to move uterus in three dimensions and to show cervicovaginal landmark during laparoscopic circular cauterization and and amputation of the Uterine cervix, which are difficult and hand skill required process. A new Uterine Manipulator has been designed and prototyped, which has 80 degrees sagittal and coronal plane motion capacity and Light Emitting Diode (LED) illumination system to ease the determinaion of correct line for cervical cauterization and amputation.
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Designing and prototyping of a new Uterine Manipulator which will overcome drawbacks of conventional Uterine Manipulators and assist laparoscopic hysterectomies
2015 19th National Biomedical Engineering Meeting (BIYOMUT), 2015Co-Authors: Serkan Dikici, Hakan Eser, Erkin Gezgin, Ozgun Baser, Savas şahin, Betül Aldemır, Hakan OflazAbstract:Hysterectomy, that is removal of uterus, is one of the most common major operations in gynecologic surgeries. Laparoscopy technique is preferred in hysterectomy because of its advantages such as lower intra-operative blood loss, decreased surrounding tissue/organ damage, less operating time, lower post-operative infection and frequency of fever, shorter duration of hospitalization and post-operative returning time to normal activity. During total laparoscopic hysterectomy, first Uterine vessels and ligaments are cauterized respectively, and then cervicovaginal connections are cauterized and coagulated to remove uterus completely. Uterine Manipulators are used during laparoscopy to maximize the endoscopic vision of surgeons by moving related organs. However, conventional Uterine Manipulators have important drawbacks particularly to move uterus in three dimensions and to show cervicovaginal landmark during laparoscopic circular cauterization which is difficult and hand skill required process, and amputation of the Uterine cervix. A new transvaginal Uterine Manipulator may overcome these important drawbacks of these currently available devices. For this reason, a 3 dimensional (3D) scanning technique was used to obtain real world data such as Uterine dimensions and computer aided design software is used in designing of the new Manipulator and then 3D printer was used in prototyping. Special light emitting diodes (LEDs) were mounted on the cervical cap of the Manipulator to guide light beams from inside of cervicovaginal tissue to abdominal cavity to facilitate the visualization of tissue landmarks. In brief, structural synthesis, CAD and rapid prototyping of parallel Manipulator with 2-dof and which allows the uterus to be manipulated in both anterior posterior and lateral axis was performed in the scope of this thesis. Furthermore, a circular LED system was designed and implemented on system to ease the determination of cervicovaginal landmark. In the light of the findings acquired from the study, designed Manipulator has ability to manipulate uterus in anterior posterior and lateral axis. Moreover, LED illumination system which can be detected easily by the laparoscope is successfully implemented on the Manipulator's cervical cap.
Wei Chen - One of the best experts on this subject based on the ideXlab platform.
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A Vision-Assisted Semi-Automatic Uterus Manipulation Approach Based on a Pose Estimating Trocar
2019 IEEE ASME International Conference on Advanced Intelligent Mechatronics (AIM), 2019Co-Authors: Wei ChenAbstract:In this paper, we propose a new vision-assisted semi-automatic uterus manipulation approach based on a pose estimating trocar. In this approach, a trocar integrated with an inertial measurement unit and a range sensor is used to estimate the position of the tip of the laparoscopic tool with respected to the trocar's base frame and a robot which grasps a Uterine Manipulator is used to perform uterus manipulation. Position of the tip of the Uterine Manipulator with respected to the robot's base frame can be obtained by forward kinematics. The relationship between the trocar's and the robot's base frames are estimated with a vision based approach by considering the laparoscopic camera's extrinsic parameters. By this, the relative position between the tips of the Uterine Manipulator and the laparoscopic tool can thus be estimated. Automatic uterus manipulation which aims to maximize the distance between the fundus of the uterus and the laparoscopic tool tip can then be achieved. Experiments are conducted to verify the feasibility of the proposed approach.
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AIM - A Vision-Assisted Semi-Automatic Uterus Manipulation Approach Based on a Pose Estimating Trocar
2019 IEEE ASME International Conference on Advanced Intelligent Mechatronics (AIM), 2019Co-Authors: Wei ChenAbstract:In this paper, we propose a new vision-assisted semi-automatic uterus manipulation approach based on a pose estimating trocar. In this approach, a trocar integrated with an inertial measurement unit and a range sensor is used to estimate the position of the tip of the laparoscopic tool with respected to the trocar’s base frame and a robot which grasps a Uterine Manipulator is used to perform uterus manipulation. Position of the tip of the Uterine Manipulator with respected to the robot’s base frame can be obtained by forward kinematics. The relationship between the trocar’s and the robot’s base frames are estimated with a vision based approach by considering the laparoscopic camera’s extrinsic parameters. By this, the relative position between the tips of the Uterine Manipulator and the laparoscopic tool can thus be estimated. Automatic uterus manipulation which aims to maximize the distance between the fundus of the uterus and the laparoscopic tool tip can then be achieved. Experiments are conducted to verify the feasibility of the proposed approach.
Roberto Demontis - One of the best experts on this subject based on the ideXlab platform.
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Feasibility and safety of total laparoscopic hysterectomy for huge uteri without the use of Uterine Manipulator: description of emblematic cases
Gynecological Surgery, 2018Co-Authors: Antonio Macciò, Clelia Madeddu, Paraskevas Kotsonis, Giacomo Chiappe, Fabrizio Lavra, Ivan Collu, Roberto DemontisAbstract:Background Uterine Manipulator is a very useful tool in performing total laparoscopic hysterectomy (TLH) for large uteri; however, in some cases, it cannot be used due to unfavorable anatomical conditions. The feasibility and safety of TLH for very large uteri without the use of Uterine Manipulator has not yet been established. Results We describe two emblematic cases of TLH for huge fibromatous uteri: the first one for a uterus weighing 5700 g, which is the largest uterus laparoscopically removed to date reported in literature, and the second one for a uterus of 3670 g associated with a severe lymph node neoplastic disease. In both cases, TLH was successfully and safely performed even without the use of Uterine Manipulator, thus allowing a rapid recovery, especially in the second case, which was essential for a fast start of the most appropriate oncological treatment, the best quality of life and undoubtedly cosmetic advantages. Conclusions Although we believe in the great usefulness of the Uterine Manipulator in performing TLH for huge uteri, in the present paper, we demonstrate the feasibility and safety of such complex surgery also when the use of this tool is not possible due to unfavorable anatomical condition.
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feasibility and safety of total laparoscopic hysterectomy for huge uteri without the use of Uterine Manipulator description of emblematic cases
Gynecological Surgery, 2018Co-Authors: Antonio Macciò, Clelia Madeddu, Paraskevas Kotsonis, Giacomo Chiappe, Fabrizio Lavra, Ivan Collu, Roberto DemontisAbstract:Uterine Manipulator is a very useful tool in performing total laparoscopic hysterectomy (TLH) for large uteri; however, in some cases, it cannot be used due to unfavorable anatomical conditions. The feasibility and safety of TLH for very large uteri without the use of Uterine Manipulator has not yet been established. We describe two emblematic cases of TLH for huge fibromatous uteri: the first one for a uterus weighing 5700 g, which is the largest uterus laparoscopically removed to date reported in literature, and the second one for a uterus of 3670 g associated with a severe lymph node neoplastic disease. In both cases, TLH was successfully and safely performed even without the use of Uterine Manipulator, thus allowing a rapid recovery, especially in the second case, which was essential for a fast start of the most appropriate oncological treatment, the best quality of life and undoubtedly cosmetic advantages. Although we believe in the great usefulness of the Uterine Manipulator in performing TLH for huge uteri, in the present paper, we demonstrate the feasibility and safety of such complex surgery also when the use of this tool is not possible due to unfavorable anatomical condition.
Serkan Dikici - One of the best experts on this subject based on the ideXlab platform.
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Development of Transvaginal Uterus Amputation Device for Laparoscopic Hysterectomies in Gynecologic Surgeries
Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020Co-Authors: Serkan Dikici, Hakan Eser, Erkin Gezgin, Ozgun Baser, Savas şahin, Bulent Yilmaz, Betül Aldemır, Utku Kürşat Ercan, Sefa Kelekci, Hakan OflazAbstract:Hysterectomy, that is removal of uterus, is one of the most common major operations in gynecologic surgeries. Laparoscopy technique is preferred in hysterectomy because of its advantages such as lower intra-operative blood loss, decreased surrounding tissue/organ damage, less operating time, lower postoperative infection and frequency of fever, shorter duration of hospitalization and post-operative returning time to normal activity. During total laparoscopic hysterectomy, first Uterine vessels and ligaments are cauterized respectively, and then cervicovaginal connections are cauterized and coagulated to remove uterus completely. Uterine Manipulators are used during laparoscopy to maximize the endoscopic vision of surgeons by moving related organs. However, conventional Uterine Manipulators have important drawbacks particularly to move uterus in three dimensions and to show cervicovaginal landmark during laparoscopic circular cauterization and amputation of the Uterine cervix. A new transvaginal Uterine Manipulator may overcome these two important drawbacks of these currently available devices. For this reason, a3D scanned technique was used to get uterus sizes and computer aided design software is used in designing of the new Manipulator and then 3D printer was used in prototyping. Special light emitting diodes (LEDs) were mounted on the cervical cap of the Manipulator to guide light beams from inside of cervicovaginal tissue to abdominal cavity to facilitate the visualization of tissue landmarks. Moreover, performances of different caps and LED systems will be evaluated. Furthermore, after integration of self-cutting and self-suturing mechanisms into our system, final prototype will be produced by using titanium which is biologically and mechanically appropriate. Therefore, aim of this study was to design and produce a new Uterine Manipulator with three dimensional movements, LED illumination, self-cutting and self-suturing systems to facilitate laparoscopic hysterectomy
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development of a 2 dof Uterine Manipulator with led illumination system as a new transvaginal uterus amputation device for gynecological surgeries
Minimally Invasive Therapy & Allied Technologies, 2018Co-Authors: Serkan Dikici, Betul Aldemir Dikici, Hakan Eser, Erkin Gezgin, Ozgun Baser, Savas şahin, Bulent Yilmaz, Hakan OflazAbstract:AbstractBackground: Hysterectomy, the most common major gynecological operation worldwide, consists of removal of the uterus and can be performed abdominally, vaginally, or laparoscopically. A Uterine Manipulator is a key device used for Uterine manipulation and cannulation in hysterectomies. The challenges of conventional Manipulators are to move the uterus in two distinct planes and to identify cervical landmarks during circular cut and coagulation.Material and methods: In this study, a structural synthesis of the two degrees of freedom parallel Manipulator was performed considering the constraints noted by surgeons. Computer-aided design and assembly of the Manipulator, the cervicovaginal cap with LEDs, and the external parts were performed before rapid prototyping. The final design of the Uterine Manipulator was then manufactured from stainless steel and tested on an artificial uterus model using a test chamber.Results: This article presents the design, production and testing processes of an innovativ...
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designing and prototyping a new Uterine Manipulator with two plane motion mechanism and led marker illumination system
National Biomedical Engineering Meeting, 2016Co-Authors: Hakan Oflaz, Serkan Dikici, Betul Aldemir Dikici, Hakan Eser, Erkin Gezgin, Ozgun Baser, Savas şahin, Bulent Yilmaz, Sorumlu YazarAbstract:Hysterectomy, that is removal of uterus, is one of the most common major operations in gynecologic surgeries. Laparoscopy technique is preferred in hysterectomy because of its advantages such as lower intra-operative blood loss, decreased surrounding tissue/organ damage, less operation time, lower post-operative infection and frequency of fever, shorter duration of hospitalization and post-operative returning time to normal activity.
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Designing and prototyping a new Uterine Manipulator with two plane motion mechanism and LED marker illumination system
2016 20th National Biomedical Engineering Meeting (BIYOMUT), 2016Co-Authors: Hakan Oflaz, Serkan Dikici, Betul Aldemir Dikici, Hakan Eser, Erkin Gezgin, Ozgun Baser, Savas şahin, Bulent Yilmaz, Sorumlu YazarAbstract:Hysterectomy, that is removal of uterus, is one of the most common major operations in gynecologic surgeries. Laparoscopy technique is preferred in hysterectomy because of its advantages such as lower intra-operative blood loss, decreased surrounding tissue/organ damage, less operation time, lower post-operative infection and frequency of fever, shorter duration of hospitalization and post-operative returning time to normal activity. Firstly Uterine vessels and ligaments are cauterized respectively, and then cervicovaginal connections are cauterized and coagulated to remove uterus completely during total laparoscopic hysterectomy (TLH). Uterine Manipulators are used during TLH to maximize the endoscopic vision of surgeons by moving related organs. However, conventional Uterine Manipulators have important drawbacks particularly to move uterus in three dimensions and to show cervicovaginal landmark during laparoscopic circular cauterization and and amputation of the Uterine cervix, which are difficult and hand skill required process. A new Uterine Manipulator has been designed and prototyped, which has 80 degrees sagittal and coronal plane motion capacity and Light Emitting Diode (LED) illumination system to ease the determinaion of correct line for cervical cauterization and amputation.
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Designing and prototyping of a new Uterine Manipulator which will overcome drawbacks of conventional Uterine Manipulators and assist laparoscopic hysterectomies
2015 19th National Biomedical Engineering Meeting (BIYOMUT), 2015Co-Authors: Serkan Dikici, Hakan Eser, Erkin Gezgin, Ozgun Baser, Savas şahin, Betül Aldemır, Hakan OflazAbstract:Hysterectomy, that is removal of uterus, is one of the most common major operations in gynecologic surgeries. Laparoscopy technique is preferred in hysterectomy because of its advantages such as lower intra-operative blood loss, decreased surrounding tissue/organ damage, less operating time, lower post-operative infection and frequency of fever, shorter duration of hospitalization and post-operative returning time to normal activity. During total laparoscopic hysterectomy, first Uterine vessels and ligaments are cauterized respectively, and then cervicovaginal connections are cauterized and coagulated to remove uterus completely. Uterine Manipulators are used during laparoscopy to maximize the endoscopic vision of surgeons by moving related organs. However, conventional Uterine Manipulators have important drawbacks particularly to move uterus in three dimensions and to show cervicovaginal landmark during laparoscopic circular cauterization which is difficult and hand skill required process, and amputation of the Uterine cervix. A new transvaginal Uterine Manipulator may overcome these important drawbacks of these currently available devices. For this reason, a 3 dimensional (3D) scanning technique was used to obtain real world data such as Uterine dimensions and computer aided design software is used in designing of the new Manipulator and then 3D printer was used in prototyping. Special light emitting diodes (LEDs) were mounted on the cervical cap of the Manipulator to guide light beams from inside of cervicovaginal tissue to abdominal cavity to facilitate the visualization of tissue landmarks. In brief, structural synthesis, CAD and rapid prototyping of parallel Manipulator with 2-dof and which allows the uterus to be manipulated in both anterior posterior and lateral axis was performed in the scope of this thesis. Furthermore, a circular LED system was designed and implemented on system to ease the determination of cervicovaginal landmark. In the light of the findings acquired from the study, designed Manipulator has ability to manipulate uterus in anterior posterior and lateral axis. Moreover, LED illumination system which can be detected easily by the laparoscope is successfully implemented on the Manipulator's cervical cap.
