A new mechanical birth simulator: BirthSIM

Silveira, Ruimark; Pham, Minh Tu; Redarce, Tanneguy; Bétemps, M.; Dupuis, Olivier

doi:10.1109/iros.2004.1390031

Cited by 24 publications

(21 citation statements)

References 8 publications

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“…The quantitative comparisons with reality show that our model behaves quite well. Moreover, the trajectory computed during the simulation could improve an existing haptic device [7], [8] used for teaching young obstetricians.…”

Section: Conclusion and Further Studiesmentioning

confidence: 99%

“…For each organ, we present its functional anatomy and its geometrical and biomechanical models. In Section IV, we present the results obtained by analyzing the behavior of organs during the simulation and in Section V the input of our results into the BirthSIM haptic simulator [7], [8], [9]. Finally, Section VI presents our conclusion and the prospects for our work.…”

Section: Introductionmentioning

confidence: 99%

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Biomechanical simulation of the fetal descent without imposed theoretical trajectory

Buttin

Zara

Shariat

et al. 2013

Computer Methods and Programs in Biomedicine

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Abstract-The medical training concerning childbirth for young obstetricians involves performing real deliveries, under supervision. This medical procedure becomes more complicated when instrumented deliveries requiring the use of forceps or suction cups become necessary. For this reason, the use of a versatile, configurable childbirth simulator, taking into account different anatomical and pathological cases, would provide an important benefit in the training of obstetricians, and improve medical procedures. The production of this type of simulator should be generally based on a computerized birth simulation, enabling the computation of the reproductive organs of the parturient woman and fetal interactions as well as the calculation of efforts produced during the second stage of labor. However, apart from the commercially available robotized dummy simulators, very few virtual training tools using computational technologies have been developed. Unfortunately, all of these simulators approximate the expulsive forces of childbirth by imposing a pre-computed fetal trajectory. They have rather limited possibilities and would be unlikely to meet the versatility requirements described above. Besides, much research work has been carried out to simulate precisely birth-induced pelvic floor dysfunction and organ prolapse, with damage to levator ani muscles. All these simulators perform a detailed modeling of the levator ani muscles in interaction with a rigid fetal head, at high computational cost. However, they do not take into consideration many pelvic organs involved in the process of childbirth.To reconcile the accuracy of results and computation time, we propose an approach that lies between the two classes of simulator described above in order to perform a realistic simulation of the descent of the fetus through the birth canal. In this paper we present the first stage of this work by focusing on the geometrical and biomechanical modeling of the main organs involved (i. e. the uterus, abdomen and pelvis of the parturient woman interacting with the fetus) based on the laws of continuum mechanics. At this stage, to verify the correctness of our hypothesis, we use finite element analysis, because of its reliability, precision and stability. In sum, our study improves work performed on childbirth simulators because:• our childbirth model takes into account all the major organs involved in birth process, thus enabling many childbirth scenarios to be considered, • fetal head is not treated as a rigid body and its motion is computed by taking into account realistic boundary conditions, i. e. we do not impose a pre-computed fetal trajectory, • we take into account the cyclic uterine contractions as well as voluntary efforts produced by the muscles of the abdomen, • a slight pressure is added inside the abdomen, representing the residual muscle tone.

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Section: Conclusion and Further Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biomechanical simulation of the fetal descent without imposed theoretical trajectory

Buttin

Zara

Shariat

et al. 2013

Computer Methods and Programs in Biomedicine

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show abstract

“…The BirthSIM simulator [12] has been used to allow residents to train to place the forceps blades. The simulator consists of a realistic manikin to reproduce accurately the maternal pelvis and the fetal head.…”

Section: A the Birthsim Simulator And Its Instrumented Forcepsmentioning

confidence: 99%

Evaluation of medical gestures based on a global performance index

Moreau

Ochoa

Pham

et al. 2009

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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Abstract-This paper presents a method to evaluate medical gestures. The objective is to objectively assess a gesture carried out by novice doctors. The proposed method is based on the study of the curvature of the 3D gesture and provide a global performance index for one manipulation. The study of the number of peaks on the curvature indicates if the gesture is smooth or not. The application is the obstetric gestures linked to the forceps use but the method can be applied to different gestures without loss of generality. Seven residents carried out 30 forceps blade placements. The results clearly show a difference between the gestures carried out. This highlights the difficulty of the gesture according to the fetal head presentation.

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“…To validate this new instrumented forceps, we used the BirthSIM simulator [15], [16]. It consists of three components: mechanical, electropneumatic, and visual (Fig.…”

Section: A Birthsim Simulator Mechanical Componentmentioning

confidence: 99%