CN213216991U

CN213216991U - A fixer for small-size mammal backbone magnetic resonance examination

Info

Publication number: CN213216991U
Application number: CN202021878582.0U
Authority: CN
Inventors: 李赛; 王文韬; 周楠; 周园园; 张亚丽; 蒋长友; 陈丹; 徐涵银; 刘彬翔
Original assignee: Changsha Flying Fish Medical Imaging Diagnosis Center Co ltd
Current assignee: Changsha Flying Fish Medical Imaging Diagnosis Center Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-05-18
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a fixer for magnetic resonance examination of spine of small mammals, which comprises a fixer body and a cover body, wherein the cover body is arranged on the fixer body through an articulated element; the fixer body is provided with a first accommodating groove, the top surface of the fixer body and two sides of the first accommodating groove in the length direction are respectively provided with a section of protruding part, and the protruding part is provided with a plurality of tooth grooves; the bottom of the cover body is provided with a second accommodating groove; when lid and fixer body lid, form the accommodation space that is used for holding small-size mammal between first holding tank and the second holding tank, the top face of tooth's socket and the bottom surface looks butt of lid, tooth's socket and lid are used for fixing small-size mammal's four limbs jointly. The fixer of the utility model is suitable for fixing the four limbs of animals to be inspected with different lengths by arranging the tooth grooves; simple structure and wide application range.

Description

A fixer for small-size mammal backbone magnetic resonance examination

Technical Field

The utility model relates to an animal imaging examination technical field especially relates to a fixer that is used for small-size mammal backbone magnetic resonance to inspect.

Background

At present, animal spinal cord injury experiments are realized by animals such as mice, rats and rabbits, when magnetic resonance equipment is used for scanning and diagnosing the animals, the damage of the whole body function of the animals caused by long-time anesthesia is considered, more pain is caused to the animals, and further observation and experimental research are not facilitated. Therefore, the animals can only be paralyzed temporarily, but the Magnetic Resonance Imaging (MRI) examination takes a long time, and the animals need to be fixed to avoid waking and escaping during the examination. For example, the prior patent application 201910075993.1 discloses an animal posture fixer for imaging examination, which comprises a positioning film and a stretching bracket, wherein the positioning film is softened and can be shaped, the stretching bracket for stretching the positioning film is fixedly installed at two sides of the positioning film, connecting strips are arranged at two sides of the positioning film, which are not provided with the stretching bracket, and fixing holes which are uniformly distributed are formed in the connecting strips; the positioning film forms a body position positioning film cavity post-hardening shaping for fixing the body position of the experimental animal. This animal position fixer need be examined the animal independent preparation to every, and the fixer preparation needs consume certain time, and a plurality of animals that wait to detect can not share the fixer, and this type of loaded down with trivial details operation has brought many inconveniences for whole scanning process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixer for small-size mammal backbone magnetic resonance inspection to solve the problem that proposes among the background art.

In order to achieve the above object, the present invention provides a fixer for magnetic resonance examination of spine of small mammal, comprising a fixer body and a cover body, wherein the cover body is mounted on the fixer body through an articulated element; the fixer body is provided with a first accommodating groove, the top surface of the fixer body and two sides of the first accommodating groove in the length direction are respectively provided with a section of protruding part, and the protruding part is provided with a plurality of tooth grooves; a second accommodating groove is formed in the bottom of the cover body; when the cover body is covered with the fixer body, an accommodating space for accommodating the small mammals is formed between the first accommodating groove and the second accommodating groove, the top end face of the tooth socket is abutted to the bottom face of the cover body, and the tooth socket and the cover body are jointly used for fixing the four limbs of the small mammals.

Furthermore, one end of the fixer body, which is far away from the hinged part, is provided with a tail fixing seat for fixing the tail of the small mammal, and the top surface of the tail fixing seat is lower than the top surface of the tooth socket.

Furthermore, the fixer body, the protruding part and the tail fixing seat are integrally formed.

Further, the cross section of first holding tank and second holding tank is arc, the degree of depth of second holding tank is followed and is close to the one end of articulated elements diminishes to keeping away from the one end of articulated elements gradually.

Furthermore, a plurality of air holes are formed in the cover body.

Furthermore, the bottom of each of the two ends of the fixer body is provided with a fixed support seat.

Furthermore, the fixer body and the cover body are both made of transparent materials.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the fixer of the utility model is suitable for fixing the four limbs of the animals to be inspected with different body lengths by arranging a plurality of tooth sockets on the two sides of the first holding tank in the length direction; the utility model discloses a fixer simple structure, application scope is wide.

(2) The utility model discloses a fixer can fix after taut to the afterbody of inspection animal through setting up the afterbody fixing base, is favorable to keeping the backbone form, avoids the lateral curvature to lead to the location difficulty.

(3) The utility model discloses a fixer adopts the transparent material preparation, and the convenience is fixed at the position and is confirmed the scanning central point, effectively guarantees the accuracy of inspection result.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic structural view of a fixator according to the present invention for magnetic resonance examination of a spine of a small mammal;

FIG. 2 is a schematic top view of the anchor body of FIG. 1;

FIG. 3 is a schematic side view of the retainer body, the fixing support and the protrusion of FIG. 1;

the fixing device comprises a fixing device body 1, a first accommodating groove 1a, a cover body 2, air holes 2.1, a hinge piece 3, a protrusion 4, a tooth groove 4.1, a tail fixing seat 5 and a fixing support 6.

Detailed Description

The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Referring to fig. 1 to 3, a fixer for magnetic resonance examination of spine of small mammal comprises a fixer body 1 and a cover body 2, wherein the cover body can be opened or closed and installed on the fixer body through a hinge 3, and the hinge is made of titanium alloy material. The top surface of the fixer body is provided with a first accommodating groove 1a which is recessed downwards, the top surface of the fixer body and two sides of the first accommodating groove in the length direction are respectively provided with a section of protruding part 4, and the protruding part is provided with a plurality of tooth grooves 4.1 arranged along the length direction; preferably, the length of the protrusion is 1/2-4/5 of the length of the first groove; the second holding tank of upwards concave yield is seted up to the bottom of lid. When lid and fixer body lid, form the accommodation space that is used for holding small-size mammal between this internal first holding tank of fixer and the second holding tank in the apron, the top face of tooth's socket and the bottom surface looks butt of lid, tooth's socket and lid are used for jointly fixing small-size mammal's four limbs. The fixer with the structure can be suitable for small animals with various lengths.

In a specific embodiment, one end of the fixer body 1 far away from the hinge 3 is provided with a tail fixing seat 5 for fixing the tail of the small mammal, and the top surface height of the tail fixing seat is lower than that of the tooth socket. When the cover body is covered with the fixer body, the cover body is used for compressing and fixing the tail of the animal.

In a specific embodiment, the retainer body 1, the protrusion 4 and the tail retainer 5 are integrally formed.

In a specific embodiment, the cross-sections of the first receiving groove 1a and the second receiving groove are both circular arc-shaped, and the depth of the second receiving groove gradually decreases from the end close to the hinge member 3 to the end far away from the hinge member 3. Preferably, the cross-sectional shapes of the first groove and the second groove are respectively matched with the outline sizes of the abdomen and the back of the animal to be detected when the animal to be detected lies prone. Furthermore, the whole fixer is of a cylindrical structure, and is beneficial to the coil wrapping of the magnetic resonance examination equipment.

In a specific embodiment, the cover body is provided with a plurality of air holes 2.1, which are beneficial to the breathing of the examined animal.

In a specific embodiment, the bottom of each of the two ends of the fixer body 1 is provided with a fixing support seat 6 for supporting and fixing the fixing seat.

In a specific embodiment, the holder body 1 and the cover 2 are made of a transparent material, for example, a transparent PP support.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixer for small mammal spine magnetic resonance examination is characterized by comprising a fixer body (1) and a cover body (2), wherein the cover body is arranged on the fixer body through a hinge piece (3); the fixer body is provided with a first accommodating groove (1a), the top surface of the fixer body and two sides of the first accommodating groove in the length direction are respectively provided with a section of protruding part (4), and the protruding part is provided with a plurality of tooth grooves (4.1); a second accommodating groove is formed in the bottom of the cover body; when the cover body is covered with the fixer body, an accommodating space for accommodating the small mammals is formed between the first accommodating groove and the second accommodating groove, the top end face of the tooth socket is abutted to the bottom face of the cover body, and the tooth socket and the cover body are jointly used for fixing the four limbs of the small mammals.

2. The fixator according to claim 1, characterized in that one end of the fixator body (1) far away from the articulation piece (3) is provided with a tail fixing seat (5) for fixing the tail of the small mammal, and the top surface of the tail fixing seat is lower than the top surface of the tooth socket.

3. A fixator according to claim 2, wherein the fixator body (1), lugs (4) and tail fixing mounts (5) are integrally formed.

4. A fixture according to claim 1, wherein the first receiving groove (1a) and the second receiving groove are each circular arc-shaped in cross section, and the depth of the second receiving groove is gradually reduced from the end close to the hinge member (3) to the end far from the hinge member (3).

5. The fixer of claim 1, wherein the cover body is provided with a plurality of air holes (2.1).

6. A fixture according to any one of claims 1-5, characterized in that the bottom of each end of the fixture body (1) is provided with a fixing support (6).

7. A holder according to any one of claims 1-5, wherein the holder body (1) and the cover (2) are made of a transparent material.