Evidence map›Paper›PMID 32734313›Full record

ArticleInternational journal of computer assisted radiology and surgery2020

Suction-fixing surgical device for assisting liver manipulation with laparoscopic forceps.

Yoshikazu Nakajima, Rina Suzuki, Yutaro Suzuki, Takaaki Sugino, Toshihiro Kawase, Shinya Onogi, Haruna Seki, Tatsuki Fujiwara, Katsuhiro Ouchi

Abstract read
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In one paragraph

Article in International journal of computer assisted radiology and surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.2field-weighted citation impact, top 54% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed, 3 citations in OpenAlex.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Yoshikazu NakajimaDepartment of Biomedical Information, Tokyo Medical and Dental University, Tokyo, Japan. nakajima.bmi@tmd.ac.jp.ORCID http://orcid.org/0000-0003-3067-6290
Rina SuzukiDepartment of Biomedical Information, Tokyo Medical and Dental University, Tokyo, Japan.
Yutaro SuzukiDepartment of Biomedical Information, Tokyo Medical and Dental University, Tokyo, Japan.
Takaaki SuginoDepartment of Biomedical Information, Tokyo Medical and Dental University, Tokyo, Japan.
Toshihiro KawaseDepartment of Biomedical Information, Tokyo Medical and Dental University, Tokyo, Japan.
Shinya OnogiDepartment of Biomedical Information, Tokyo Medical and Dental University, Tokyo, Japan.
Haruna SekiDepartment of Cardiovascular Surgery, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo, Japan.
Tatsuki FujiwaraDepartment of Cardiovascular Surgery, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo, Japan.
Katsuhiro OuchiDepartment of Advanced Surgical Technology, Tokyo Medical and Dental University, Tokyo, Japan.
Tokyo Medical and Dental University · JP

Funding

Japan Society for the Promotion of Science Grant-in-Aid for Scientific Research (B) 16H03191
6 · The paper itself

Abstract

purposeNoninvasiveness and stability are significant issues in laparoscopic liver resection. Inappropriate grasping force can cause damage or serious bleeding to the liver. In addition, instability of grasping can result unsafe operations or wavered cutting. We propose a surgical device to improve stability of liver manipulation.

methodsA proposed device adheres to the liver surface with suction fixation, then tunes its stiffness to being hard and shapes like as a bulge on the liver surface to be grasped with laparoscopic forceps. It consists of two soft beams, a chamber sponge, membrane covering the device upper, suburb extrusion wing membrane, a vacuuming tube and to-be-grasped bars. The beams are designed as being non-stretchable and easy to bend. The device is connected to a medical vacuuming pump to vacuum air in the device and then gets hard to transfer forceps operation well. This stiffness tuning mechanism by pneumatic control features the device for achieving good liver shape followability and forceps operation propagation less invasively. The proposed device was tested with rubber phantoms and porcine livers on shape followability, stiffness transition, liver invasiveness and operational usability in the experiments.

resultsPerformance of the proposed device was assessed in experiments. The device showed good object-shape followability. It held the liver with 2.43-N force for vertical lifting and 4.90-N shear force with - 80 kPa vacuuming pressure. Invasiveness was reduced to acceptable level of liver damage. In usability test, the device grasped the liver stably and transferred surgical forceps operations to the liver surface well.

conclusionThe proposed device showed effective performance to improve laparoscopic liver manipulation. It held the liver stably and less invasively and transferred forceps operation force to the liver surface well.

Indexed as

Equipment DesignSurgical InstrumentsAnimalsLaparoscopyLiverMicrosurgerySuctionSwineLaparoscopic surgeryLiver manipulationStiffness tuningSuction fixationSurgical device

Identifiers

PMID32734313
OpenAlexW3046383838

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.