CN-224220281-U - Experimental animal brain tissue extractor

CN224220281UCN 224220281 UCN224220281 UCN 224220281UCN-224220281-U

Abstract

The utility model provides a test animal brain tissue extractor which comprises a cutting device and a driving device, wherein the cutting device comprises a base and two cutting mechanisms, the cutting mechanism comprises a rotating shaft, cutting pieces, an adjusting assembly and a driving piece, the rotating shaft is rotatably arranged on the base, the two cutting pieces are coaxially arranged on the rotating shaft through the adjusting assembly, the adjusting assembly can adjust the position of the cutting pieces in the length direction of the rotating shaft, the driving piece can drive the rotating shaft to rotate, the two rotating shafts are mutually perpendicular and staggered, four cutting pieces are enclosed into a rectangular shape, and the driving device can drive the cutting device to move towards the cutting direction of the cutting pieces. The skull of the test animal is cut through four cutting pieces which encircle into a rectangle, so that a rectangular opening can be cut on the skull of the test animal. Replace handheld angle mill with this and open to can effectually reduce operating personnel's risk, and labour saving and time saving more.

Inventors

LIU BO
SHENG FEN
YANG JIN
ZHAO YUAN
BAO LIJUAN
WANG MIAO
WANG YANHUI
GUO CHUNHUA
LIU DONGMING
HE QING
DING GE
MING WENJUAN
MAO YI

Assignees

陕西省医疗器械质量检验院

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (5)

1. A test animal brain tissue extractor, comprising: The cutting device comprises a base and two cutting mechanisms, wherein the cutting mechanisms comprise a rotating shaft, cutting pieces, an adjusting assembly and a driving piece, the rotating shaft is rotatably arranged on the base, the two cutting pieces are coaxially arranged on the rotating shaft through the adjusting assembly, the adjusting assembly can adjust the positions of the cutting pieces in the length direction of the rotating shaft, the driving piece can drive the rotating shaft to rotate, the two rotating shafts are mutually perpendicular and staggered, four cutting pieces enclose a rectangular shape, and the cutting mechanism comprises a cutting mechanism body, a cutting mechanism body and a cutting mechanism body And the driving device can drive the cutting device to move towards the cutting direction of the cutting sheet.
2. The brain tissue extractor of a test animal according to claim 1, wherein the adjusting assembly comprises a sliding sleeve and a limiting member, the sliding sleeve is slidably sleeved on the rotating shaft, the cutting blade is mounted on the sliding sleeve, and the limiting member can limit the sliding sleeve to slide.
3. The brain tissue extractor for the test animals is characterized in that the limiting piece comprises an inserting rod and a rotating rod, a plurality of limiting holes are formed in the length direction of the rotating shaft at intervals, the limiting holes are perpendicular to the axis of the rotating shaft, inserting holes perpendicular to the axis of the sliding sleeve are formed in the sliding sleeve, the inserting rod and the rotating rod are both in sliding insertion connection with the limiting holes and the inserting holes, a polygonal limiting portion is arranged at one end of the inserting rod, a polygonal groove matched with the polygonal limiting portion is formed in one end of the inserting hole, a threaded hole coaxial to the inserting is formed in the other end of the inserting rod, a threaded inserting portion is arranged at one end of the rotating rod, the threaded inserting portion is in threaded fit with the threaded hole, and a twisting portion is arranged at the other end of the rotating rod.
4. The brain tissue extractor for the test animal according to claim 1, wherein the driving device comprises a base, a stand column, a screw rod, a nut seat, an extension arm and a power piece, wherein the stand column is vertically arranged on the base, the screw rod is parallel to the stand column and rotatably arranged on the stand column, the nut seat is slidably arranged on the stand column along the length direction of the screw rod and is in threaded connection with the screw rod, one end of the extension arm is fixedly arranged on the nut seat, the extension arm and the stand column are mutually perpendicular, the other end of the extension arm is fixedly connected with the base, and the power piece can drive the screw rod to rotate.
5. The test animal brain tissue extractor of claim 4 wherein the extension arm is adjustable in length.

Description

Experimental animal brain tissue extractor Technical Field The utility model relates to the technical field of test animal brain tissue extraction, in particular to a test animal brain tissue extractor. Background The use of animal models for neuropsychiatric disease studies is highly desirable. This is because neuropsychiatric diseases often involve complex neural circuits and molecular mechanisms that are difficult to study directly in humans. The pathogenesis and pathophysiology of neuropsychiatric diseases can be better studied using animal models, as well as assessing the effectiveness and safety of treatment methods. These animal models can provide a systematic, controllable and reproducible method that helps scientists study the disease process. The use of animal models for neuropsychiatric disease research has also helped to develop new drugs and treatments. In animal models for the study of neuropsychiatric diseases, brain tissue is an important material for the study of neuropsychiatric diseases, and can provide important information for the study of neurons, neural circuits, neurotransmitters, and the like, and many useful data can be obtained using brain tissue. At present, the conventional method for obtaining the brain tissue of the experimental animal is to scratch a rectangle on the skull by using an angle grinder, take off the skull and take out the brain tissue, and the method can bring risks to operators and is time-consuming and labor-consuming. Disclosure of utility model Aiming at the problems in the prior art, the technical problem to be solved by the utility model is that the conventional method for acquiring the brain tissue of the experimental animal is to cut a rectangle on the skull by using an angle grinder, take off the skull and take out the brain tissue, and the method can bring risks to operators and is time-consuming and labor-consuming. In order to solve the technical problems, the utility model adopts the following technical scheme that the extractor for testing the brain tissue of the animal comprises: The cutting device comprises a base and two cutting mechanisms, wherein the cutting mechanisms comprise a rotating shaft, cutting pieces, an adjusting assembly and a driving piece, the rotating shaft is rotatably arranged on the base, the two cutting pieces are coaxially arranged on the rotating shaft through the adjusting assembly, the adjusting assembly can adjust the positions of the cutting pieces in the length direction of the rotating shaft, the driving piece can drive the rotating shaft to rotate, the two rotating shafts are mutually perpendicular and staggered, four cutting pieces enclose a rectangular shape, and the cutting mechanism comprises a cutting mechanism body, a cutting mechanism body and a cutting mechanism body And the driving device can drive the cutting device to move towards the cutting direction of the cutting sheet. Preferably, the adjusting assembly comprises a sliding sleeve and a limiting piece, wherein the sliding sleeve is arranged on the rotating shaft in a sliding mode, the cutting piece is arranged on the sliding sleeve, and the limiting piece can limit the sliding of the sliding sleeve. The limiting piece comprises a plug rod and a rotating rod, wherein a plurality of limiting holes are formed in the length direction of the rotating shaft at intervals, the limiting holes are perpendicular to the axis of the rotating shaft, a plug hole perpendicular to the axis of the sliding sleeve is formed in the sliding sleeve, the plug rod and the rotating rod are in sliding plug connection with the limiting holes and the plug hole, a polygonal limiting part is arranged at one end of the plug rod, a polygonal groove matched with the polygonal limiting part is formed at one end of the plug hole, a threaded hole coaxial to the plug connection is formed at the other end of the plug rod, a threaded plug part is arranged at one end of the rotating rod, the threaded plug part is in threaded fit with the threaded hole, and a twisting part is arranged at the other end of the rotating rod. The driving device comprises a base, an upright post, a screw rod, a nut seat, an extension arm and a power piece, wherein the upright post is vertically arranged on the base, the screw rod is arranged in parallel with the upright post and rotatably arranged on the upright post, the nut seat is slidably arranged on the upright post along the length direction of the screw rod and is in threaded connection with the screw rod, one end of the extension arm is fixedly arranged on the nut seat, the extension arm and the upright post are mutually vertically arranged, the other end of the extension arm is fixedly connected with the base, and the power piece can drive the screw rod to rotate. Preferably, the extension arm is adjustable in length. Compared with the prior art, the utility model has at least the following advantages: 1. According to the utility model, after the head of a