CN210447273U

CN210447273U - Anti-blocking trachea cannula for laboratory mouse

Info

Publication number: CN210447273U
Application number: CN201821877981.8U
Authority: CN
Inventors: 陈志军; 李智民; 杨新跃; 沙焱; 谢英; 黄惠霞; 张健杰
Original assignee: SHENZHEN PREVENTION AND TREATMENT CENTER FOR OCCUPATIONAL DISEASES
Current assignee: SHENZHEN PREVENTION AND TREATMENT CENTER FOR OCCUPATIONAL DISEASES
Priority date: 2018-11-15
Filing date: 2018-11-15
Publication date: 2020-05-05
Anticipated expiration: 2028-11-15

Abstract

An anti-blocking trachea cannula for laboratory mice comprises a cannula body and a shaping guide steel wire; the intubation tube body comprises a tube body, a tube body outlet arranged at the bottom end of the tube body, an injection opening and a guide steel wire opening which are arranged at the top end of the tube body, and a top vent and a grab handle which are arranged on the side surfaces of the injection opening and the guide steel wire opening; the pipe body consists of an outer pipe wall and an inner pipe wall, and a clearance cavity is arranged between the outer pipe wall and the inner pipe wall; the bottom section and the top section of the outer pipe wall are respectively provided with a bottom vent hole and a top vent hole which are communicated with the clearance cavity and the outside. The technique is not only suitable for trachea intubation, but also suitable for tracheotomy, can not cause trachea blockage, and has reasonable structure and convenient use.

Description

Anti-blocking trachea cannula for laboratory mouse

Technical Field

The utility model relates to an apparatus for animal experiments, in particular to a relevant technology of contamination (dust) and drug administration of laboratory mice by a trachea cannula method.

Background

The experimental mouse has similar organ and gene sequence to human, is easy to breed pure strain to reduce the inherent individual difference, and has small quality, fast breeding period and relatively low cost, so that it is a common experimental animal for medical research. The construction of animal models, the observation of drug efficacy, and mechanical ventilation of some medical experiments are all realized through tracheal intubation. At present, the tracheal intubation mainly has two modes of directly inserting the trachea through the oral cavity and cutting the trachea. Compared with the tracheotomy tube, the oral tracheal intubation has no wound, avoids the influence on the result caused by non-experimental factors such as incision size, tissue damage degree, bleeding, postoperative infection and the like, and is a relatively suitable tracheal intubation mode. Because no suitable tracheal cannula special for experimental rats exists at present, and the rats have high respiratory rate, narrow oral cavity and higher glottis, the oral tracheal cannula is difficult; repeated intubation easily causes complications such as laryngeal spasm, laryngeal edema, tracheal perforation, hemorrhage, tracheal actuator asphyxia caused by excessive secretion blockage, even death and the like, and the experimental result is influenced. Therefore, a laboratory mouse trachea cannula which is convenient to operate and can prevent asphyxia is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the prior art, and designing a special trachea cannula which is reasonable in structure, not only is convenient for the operation of the cannula, but also can prevent the laboratory mouse from suffocating due to trachea blockage.

The utility model can be realized by the following technical proposal that the anti-blocking trachea cannula for the laboratory mouse comprises a cannula body 1 and a shaping guide steel wire 2; the intubation tube body 1 comprises a tube body 10, a tube body outlet 11 arranged at the bottom end of the tube body 10, an injection opening and a guide steel wire opening 12 arranged at the top end of the tube body 10, a top vent 13 arranged on the side surfaces of the injection opening and the guide steel wire opening 12 and a grab handle 14; the pipe body 10 is composed of an outer pipe wall 100 and an inner pipe wall 101, and a clearance cavity 102 is arranged between the outer pipe wall 100 and the inner pipe wall 101; the bottom section and the top section of the outer tube wall 100 are respectively provided with a bottom vent hole 103 and a top vent hole 13 which are communicated with the clearance cavity 102 and the outside.

Further, in the anti-clogging tracheal intubation for the laboratory mouse, a clearance cavity 102 between an outer tube wall 100 and an inner tube wall 101 of the anti-clogging tracheal intubation is partitioned by a clearance cavity partition 104 into more than two independent cavities along the length of the tube body 10, the top of each cavity is communicated with the top vent 13, and the bottom of each cavity is provided with a bottom vent 103.

Further, the anti-blocking trachea cannula for the laboratory mouse is characterized in that a scale 105 for measuring the insertion depth is arranged on the tube body 10.

Further, the anti-blocking trachea cannula of the laboratory mouse has a tube body outlet 11 which is an inclined opening.

Further, the outlet 11 of the anti-blocking trachea cannula of the laboratory mouse is a flat opening.

Further, the grip 14 of the anti-blocking trachea cannula of the laboratory mouse is provided with an anti-skid bulge.

Further, the trachea blocking prevention cannula of the experimental mouse is provided with a top vent cover 130 on the top vent hole 13.

The technical progress of the utility model lies in that the trachea cannula is applicable to trachea cannula, is applicable to tracheotomy, can not cause trachea blockage, and has reasonable structure and convenient use.

Drawings

Fig. 1 is a schematic perspective view of the cannula body of the present invention;

fig. 2 is a schematic perspective view of the shaping guide wire of the present invention;

FIG. 3 is an enlarged schematic perspective view of a portion A of the top end of the tube body of the present invention;

fig. 4 is an enlarged schematic perspective view of a part B of the bottom end of the tube body of the present invention;

FIG. 5 is a schematic view of a three-dimensional structure of the present invention with one clearance cavity;

fig. 6 is a schematic perspective view of the gap cavity of the present invention with more than two gaps.

Detailed Description

As shown in fig. 1, 2, 3, 4, 5, 6; the utility model relates to an anti-blocking trachea cannula for laboratory mice, which consists of a cannula body 1 and a shaping guide steel wire 2; the intubation tube body 1 comprises a tube body 10, a tube body outlet 11 arranged at the bottom end of the tube body 10, an injection opening and a guide steel wire opening 12 arranged at the top end of the tube body 10, a top vent 13 arranged on the side surfaces of the injection opening and the guide steel wire opening 12 and a grab handle 14; the pipe body 10 is composed of an outer pipe wall 100 and an inner pipe wall 101, and a clearance cavity 102 is arranged between the outer pipe wall 100 and the inner pipe wall 101; the bottom section and the top section of the outer tube wall 100 are respectively provided with a bottom vent hole 103 and a top vent hole 13 which are communicated with the clearance cavity 102 and the outside. The shaped guide wire 2 comprises a shaped section 20 and a shaped handle section 21. The utility model discloses during the use will moulding section 20 of moulding guide wire 2 insert the lumen 106 of body 10 by the filling opening with guide wire mouth 12 in to make it become required radian, insert the mouse trachea with the body export 11 of body 10 bottom again, observe scale 105, reach the degree of depth of settlement, through the filling opening with guide wire mouth 12 dosing or contamination (dirt), give oxygen or wash through top blow vent 13 when needing.

In another embodiment of the present invention, as shown in fig. 6, the anti-blocking tracheal cannula for laboratory mice has an outer wall 100 and an inner wall 101, wherein a clearance cavity 102 is partitioned by a clearance cavity partition 104 along the length of the tube body 10 to be divided into two or more independent cavities, each cavity bottom is provided with a bottom vent 103 communicating with the outside, and each cavity top is communicated with a top vent 13. The structure can effectively prevent the shortages of breath blockage when the intubation tube is inserted into the trachea.

Claims

1. The anti-blocking trachea cannula for the laboratory mouse is characterized by comprising a cannula body (1) and a shaping guide steel wire (2); the intubation tube body (1) comprises a tube body (10), a tube body outlet (11) arranged at the bottom end of the tube body (10), an injection opening and a guide steel wire opening (12) arranged at the top end of the tube body (10), a top vent (13) arranged on the side surfaces of the injection opening and the guide steel wire opening (12) and a grab handle (14); the pipe body (10) consists of an outer pipe wall (100) and an inner pipe wall (101), and a clearance cavity (102) is arranged between the outer pipe wall (100) and the inner pipe wall (101); the bottom section of the outer pipe wall (100) is provided with a bottom vent hole (103) which enables the clearance cavity (102) to be communicated with the outside, and the top section of the outer pipe wall (100) is provided with a top vent hole (13) which enables the clearance cavity (102) to be communicated with the outside.

2. The rat anti-clogging trachea cannula according to claim 1, wherein the clearance cavity (102) between the outer tube wall (100) and the inner tube wall (101) is divided into more than two independent cavities by a clearance cavity partition (104) along the length of the tube body (10), the top of each cavity is communicated with the top vent (13), and the bottom of each cavity is provided with a bottom vent (103).

3. The laboratory mouse anti-clogging tracheal cannula according to claim 1 or 2, wherein the tube body (10) is provided with a scale (105) for measuring the insertion depth.

4. The laboratory mouse anti-clogging tracheal cannula according to claim 1 or 2, wherein the tube outlet (11) is an inclined port.

5. The laboratory mouse anti-clogging tracheal cannula according to claim 1 or 2, wherein the tube outlet (11) is flat.

6. The laboratory mouse anti-clogging tracheal cannula according to claim 1 or 2, wherein the grip (14) is provided with anti-slip projections.

7. The laboratory mouse anti-clogging tracheal cannula according to claim 1 or 2, wherein the top vent port (13) is provided with a top vent port cover (130).