JP-7854638-B2 - Gastrointestinal anastomosis training kit

Inventors

• 高澤 慎也
• 西 明
• 竹田 正俊

Assignees

• 高澤 慎也
• 国立大学法人 東京大学
• 株式会社クロスメディカル

Dates

Publication Date

20260507

Application Date

20220317

Claims (8)

1. A gastrointestinal anastomosis training kit used for training in anastomosis procedures between the first and second gastrointestinal tracts, The above-mentioned first model of the digestive tract, comprising a first tube with a wet surface, The model of the second digestive tract comprises a second tube whose surface is wet and which has an inner diameter smaller than the inner diameter of the first tube, The first tube is, One end is open, The other end is closed and It has, The second tube is, In the training described above, one end of the first tube is anastomosed with the other end, and the other end is open, The other end is closed and It has, A gastrointestinal anastomosis training kit, wherein at least one of the first tube and the second tube has a connector that can be connected to an air introduction device for introducing air into the anastomosed first tube and second tube .
2. A gastrointestinal anastomosis training kit used for training in anastomosis procedures between the first and second gastrointestinal tracts, The first tube, which is a model of the digestive tract described above, The second model of the digestive tract comprises a second tube having an inner diameter smaller than the inner diameter of the first tube, The base comprises a first through-hole through which the first tube passes and a second through-hole through which the second tube passes, A gastrointestinal anastomosis training kit, wherein one end of the first tube protrudes upward from the base through the first through-hole, and one end of the second tube protrudes upward from the base through the second through-hole.
3. The first and second gastrointestinal tracts are the gastrointestinal tracts of low birth weight infants. The gastrointestinal anastomosis training kit according to claim 1 or 2, wherein the second gastrointestinal tract is a gastrointestinal tract that is more anal than the first gastrointestinal tract.
4. The difference between the inner diameter of the first tube and the inner diameter of the second tube is 5 mm or more, as described in any one of claims 1 to 3, for the gastrointestinal anastomosis training kit.
5. The gastrointestinal anastomosis training kit according to any one of claims 1 to 4, wherein the first tube and the second tube are made of hydrogel.
6. Furthermore, a support base for supporting the first tube and the second tube, A gastrointestinal anastomosis training kit according to any one of claims 1 to 5, comprising a support stand which is a model of the surgical field.
7. The gastrointestinal anastomosis training kit according to claim 1 , further comprising the aforementioned air introduction device.
8. The gastrointestinal anastomosis training kit according to claim 7, further comprising a container capable of holding water, in which the anastomosed first tube and the second tube can be immersed.

Description

Application of Article 30, Paragraph 2 of the Patent Law 1. Publication in the Abstracts of the 121st Annual Meeting of the Japan Surgical Society Publication Name: Abstracts of the 121st Annual Meeting of the Japan Surgical Society Publication Date: March 22, 2021 2. Presentation at the 121st Annual Meeting of the Japan Surgical Society Meeting Name: 121st Annual Meeting of the Japan Surgical Society Date: April 9, 2021 3. Publication in the Journal of the Japanese Society of Pediatric Surgery Publication Name: Journal of the Japanese Society of Pediatric Surgery, Vol. 57, No. 2, 2021 Publication Date: April 8, 2021 4. Presentation at the 58th Annual Meeting of the Japanese Society of Pediatric Surgery Meeting Name: 58th Annual Meeting of the Japanese Society of Pediatric Surgery Date: April 28, 2021 5. Publication in Pediatric Surgery International Publication name: Pediatric Surgery International, Volume 37, Issue 12, December 2021 Publication date: September 2, 2021 URL: https://link.springer.com/article/10.1007/s00383-021-04991-2 6. Publication in the Grants-in-Aid for Scientific Research Database Publication date: December 27, 2021 URL: https://kaken.nii.ac. jp/ja/report/KAKENHI-PROJECT-20K17598/20K175982020hokoku/ This invention relates to a gastrointestinal anastomosis training kit. Conventionally, organ models for surgical training are known (see Patent Document 1 below). Japanese Patent Publication No. 2016-6477 Figure 1 shows the components of the gastrointestinal anastomosis training kit.Figure 2 is a cross-sectional view of the first tube and the second tube shown in Figure 1.Figure 3 shows the first tube and the second tube shown in Figure 1 set on the support base.Figure 4 shows the state in which the first tube and the second tube shown in Figure 3 are anastomosed.Figure 5 is an explanatory diagram illustrating the leak test of the anastomotic first and second tubes.Figure 6 is a correlation diagram showing the correlation between the number of intestinal anastomoses performed on low birth weight infants and the leak pressure measured by the leak test shown in Figure 5. 1. Gastrointestinal Anastomosis Training Kit The components of the Gastrointestinal Anastomosis Training Kit 1 will be explained below. The gastrointestinal anastomosis training kit 1 shown in Figure 1 is used for training in anastomosis between a first and second gastrointestinal tract. The inner diameter of the second gastrointestinal tract is smaller than that of the first gastrointestinal tract. Specifically, the first and second gastrointestinal tracts are those of a low birth weight infant. The second gastrointestinal tract is located more anally than the first gastrointestinal tract. The gastrointestinal anastomosis training kit 1 is used, for example, for training in intestinal anastomosis when closing a colostomy after temporary colostomy in a low birth weight infant. The gastrointestinal tracts specifically include the esophagus, duodenum, jejunum, ileum, colon, and rectum. The gastrointestinal anastomosis training kit 1 comprises a first tube 2, a second tube 3, and a support stand 4. (1) First tube The first tube 2 is a model of the first digestive tract. The first tube 2 is a model of the oral intestinal tract of a low birth weight infant when closing an artificial anus. The inner diameter of the oral intestinal tract of a low birth weight infant when closing an artificial anus is usually between 12 mm and 18 mm. Therefore, if the first tube 2 is a model of the oral intestinal tract of a low birth weight infant when closing an artificial anus, the inner diameter of the first tube 2 is, for example, between 12 mm and 18 mm. The thickness of the wall of the first tube 2 is, for example, 0.5 mm or more and 2 mm or less. The first tube 2 is made of resin. The first tube 2 has viscoelastic properties similar to those of the intestinal tract of a low-birth-weight infant. The first tube 2 is, for example, made of a soft resin, specifically acrylic resin. Preferably, the surface of the first tube 2 is wet. Preferably, the first tube 2 is made of hydrogel, specifically hydrophilic acrylic resin. The inner surface of the first tube 2 has irregularities that mimic the inner surface of the intestinal tract. The first tube 2 is manufactured, for example, using a 3D printer. As shown in Figure 2, in the direction in which the first tube 2 extends, the first tube 2 has one end E1 and the other end E2, which is an example of a connection part. End E1 is the end to be anastomosed. End E1 is open. The other end E2 can be connected to a cuff checker 6 (see Figure 5) via a connecting tube 5 (see Figure 5). The connecting tube 5 and cuff checker 6 will be described later. The other end E2 is closed. The other end E2 has a through hole 21. The through hole 21 leads to the internal space of the first tube 2. With the first tube 2 and the cuff checker 6 connected via the connecting tube 5, the through hole 21 receives the tip 5B (see Fi