Granted Patent B2

US 12,558,209 · App. 18/284,576 · Granted Feb 24, 2026

Inventors: Naomi Fujiwara (Kobe, JP); Shiro Toyohisa (Kobe, JP); Shinichi Nonaka (Kobe, JP); Miki Nishi (Kobe, JP); Yukiko Yanoue (Kobe, JP); Masao Tomiki (Kobe, JP); Yukiko Nakajima (Kobe, JP); Yukihiro Niboshi (Kobe, JP)

Assignee: KOBELCO ECO-SOLUTIONS CO., LTD.

A61D3/00A01K63/00

Abstract

Claims (50)

1 . Test fish handling equipment comprising:

a holder for holding a test fish to which a test substance is administered as a predetermined handling,

wherein the holder comprises a posture maintaining groove for maintaining the test fish supplied together with water in a predetermined posture,

and at least an inner surface of the posture maintaining groove is made of a flexible material; and

wherein the posture maintaining groove comprises an upper groove portion that opens upward and a lower groove portion that continues downward and is wider than the upper groove portion.

2 . The test fish handling equipment according to claim 1 ,

wherein the holder is made of a flexible, water-permeable, and water-retentive material.

3 . The test fish handling equipment according to claim 1 ,

wherein the posture maintaining groove is tapered toward a front end side.

4 . The test fish handling equipment according to claim 1 ,

wherein the posture maintaining groove is formed with a same width from a front end side to a rear end side.

5 . The test fish handling equipment according to claim 1 ,

wherein a depth of the posture maintaining groove is set to be greater than a height of the test fish held by the posture maintaining groove.

6 . A test fish handling method comprising:

using the test fish handling equipment according to claim 1 ; and

administering a test substance to the test fish held by the holder as a predetermined handling.

7 . The test fish handling method according to claim 6 ,

wherein as the predetermined handling, oral administration is performed to directly and orally administer a test substance to the test fish through an oral tube inserted into an oral cavity of the test fish maintained in a predetermined posture by the posture maintaining groove of the holder.

8 . The test fish handling method according to claim 6 ,

wherein as the predetermined handling, parenteral administration is performed to administer a test substance to the test fish by injection into the test fish maintained in a predetermined posture by the posture maintaining groove of the holder.

9 . Test fish handling equipment comprising:

a holder for holding a test fish to which a test substance is administered as a predetermined handling, wherein the holder comprises a posture maintaining groove for maintaining the test fish supplied together with water in a predetermined posture, and at least an inner surface of the posture maintaining groove is made of a flexible material; and

guiding means for guiding the test fish to the holder together with water,

wherein a first end of the guiding means comprises a supply port through which the test fish is supplied together with water, and a second end comprises a discharge port through which the test fish is discharged to the posture maintaining groove together with the water,

wherein the guiding means comprises a pipe member having a first end including the supply port and a second end including the discharge port,

a pipe-shaped discharge portion disposed above and adjacent to the posture maintaining groove is connected to the discharge port,

the discharge portion comprises a slit facing along the posture maintaining groove, and

the test fish is discharged from the slit to the posture maintaining groove in a predetermined posture together with the water.

10 . The test fish handling equipment according to claim 9 , further comprising:

a first water tank that accommodates the test fish before being supplied to the supply port; and

a second water tank that accommodates the test fish released from holding of the holder.

11 . The test fish handling equipment according to claim 9 ,

wherein the holder is made of a flexible, water-permeable, and water-retentive material.

12 . The test fish handling equipment according to claim 9 ,

wherein the posture maintaining groove is tapered toward a front end side.

13 . The test fish handling equipment according to claim 9 , further comprising:

water flow forming means for forming a water flow inside the pipe member by supplying the water to the supply port.

14 . The test fish handling equipment according to claim 9 ,

wherein a funnel-shaped funnel portion for guiding the test fish together with the water to the supply port is connected to the supply port.

15 . The test fish handling equipment according to claim 9 , further comprising:

a water receiver in which the handling portion is installed and which receives the water discharged from the discharge port.

16 . A test fish handling method comprising:

using the test fish handling equipment according to claim 9 ; and

administering a test substance to the test fish held by the holder as a predetermined handling.

17 . The test fish handling method according to claim 16 ,

wherein as the predetermined handling, oral administration is performed to directly and orally administer a test substance to the test fish through an oral tube inserted into an oral cavity of the test fish maintained in a predetermined posture by the posture maintaining groove of the holder.

18 . The test fish handling method according to claim 16 ,

wherein as the predetermined handling, parenteral administration is performed to administer a test substance to the test fish by injection into the test fish maintained in a predetermined posture by the posture maintaining groove of the holder.

19 . The test fish handling equipment according to claim 9 ,

wherein a depth of the posture maintaining groove is set to be greater than a height of the test fish held by the posture maintaining groove.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (19)