CN219185531U

CN219185531U - Double-sleeve

Info

Publication number: CN219185531U
Application number: CN202320000508.6U
Authority: CN
Inventors: 初金娥; 范兴例; 许诚成; 张玲; 孙小丹
Original assignee: Shanghai Qingcheng Trading Co ltd
Current assignee: Shanghai Qingcheng Trading Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-06-16
Anticipated expiration: 2033-01-04

Abstract

The utility model discloses a double sleeve, which comprises an inner sleeve, wherein an outer sleeve is sleeved on the surface of the inner sleeve, a plurality of convex cutting lines are formed on the surface of the outer sleeve, a limiting sleeve is fixedly connected to the left side of the outer sleeve, the inner wall of the limiting sleeve is fixedly connected with the surface of the inner sleeve, a diversion trench is formed in the inner part of the inner sleeve, a movable sleeve is connected to the surface of the inner sleeve in a sliding manner, a threaded sleeve is fixedly connected to the inner part of the movable sleeve, the inner wall of the threaded sleeve is in threaded connection with the surface of the inner sleeve, and the right side of the outer sleeve extends to the inner part of the movable sleeve and is in sliding connection with the inner wall of the movable sleeve. The utility model can effectively fix the double sleeve, most of the existing double sleeve is directly inserted into the blood vessel, the phenomenon that the double sleeve is easy to shake after being inserted can be avoided, the practicability of the double sleeve is enhanced, and the phenomenon that the double sleeve is easy to slide when in use is prevented.

Description

Double-sleeve

Technical Field

The utility model relates to the technical field of medical science, in particular to a double sleeve.

Background

The double-sleeve silicone rubber is a double-wall silicone rubber insulating sleeve, a glass fiber sleeve coated with a silicone rubber insulating layer is arranged in the double-sleeve silicone rubber insulating sleeve, an inner fiber outer rubber sleeve formed by high-temperature treatment of silicone rubber is coated, the double-sleeve silicone rubber insulating sleeve has better dielectric property, self-extinguishing property and flexibility than a silicone resin glass fiber sleeve, a tube formed by extrusion and vulcanization of medical silicone rubber which is physiologically inert is assembled into a medical product with double-layer tubes, and the double-sleeve silicone rubber insulating sleeve is used for drainage of peritonitis, peritoneum and abdominal inflammation, can be used for a long time, and also has the functions of flushing, negative pressure suction and the like.

The double-cannula is needed to be used when the surgical drainage is carried out, but most of the existing double-cannula is directly inserted into a blood vessel, but the diameter of an aorta is wider, so that the phenomenon that the double-cannula slides at will easily during insertion is caused, the double-cannula cannot be used effectively, and the practicability of the double-cannula is reduced.

Therefore, improvement of the double sleeve is needed to prevent the double sleeve from sliding easily during use.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model aims to provide a double-sleeve, which has the advantage of convenient support and fixation, and solves the problems that most of the existing double-sleeve is directly inserted into a blood vessel, but the diameter of an aorta is wider, so that the double-sleeve is easy to slide randomly during insertion, the double-sleeve cannot be effectively used, and the practicability of the double-sleeve is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a double cannula, includes the interior sleeve pipe, interior sleeve pipe's surface cover is equipped with the outer tube, multichannel protruding cutting line has been seted up to the surface of outer tube, the left side fixedly connected with stop collar of outer tube, the inner wall of stop collar and interior sleeve pipe's fixed surface connection, the guiding gutter has been seted up to interior sheathed tube inside, interior sheathed tube surface sliding connection has the removal cover, the inside fixedly connected with swivel nut of removal cover, the inner wall and the interior sheathed tube surface threaded connection of swivel nut, the right side of outer tube extends to the inside of removal cover and with the inner wall sliding connection of removal cover.

As the preferable mode of the utility model, the right side of the inner sleeve is fixedly connected with a stop block, and the stop block is matched with the inner sleeve for use.

As the preferable mode of the utility model, the right side of the outer sleeve is fixedly connected with a limiting block, and the surface of the limiting block is contacted with the inner wall of the movable sleeve.

As preferable, the surface of the movable sleeve is provided with anti-skid patterns, and the anti-skid patterns are matched with the movable sleeve for use.

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

1. the utility model can effectively fix the double sleeve, avoid the phenomenon that the double sleeve is easy to shake after being inserted, enhance the practicability of the double sleeve and prevent the double sleeve from easily sliding when in use.

2. According to the utility model, the stop block is arranged, so that the inner sleeve can be limited, and the phenomenon that the inner sleeve completely submerges into a blood vessel is prevented.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

fig. 3 is a sectional view of an outer sleeve arch according to the present utility model.

In the figure: 1. an inner sleeve; 2. an outer sleeve; 3. a convex cutting line; 4. a limit sleeve; 5. a diversion trench; 6. a moving sleeve; 7. a screw sleeve; 8. a stop block; 9. a limiting block; 10. anti-skid lines.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 3, the double-sleeve provided by the utility model comprises an inner sleeve 1, wherein an outer sleeve 2 is sleeved on the surface of the inner sleeve 1, a plurality of convex cutting lines 3 are formed on the surface of the outer sleeve 2, a limit sleeve 4 is fixedly connected to the left side of the outer sleeve 2, the inner wall of the limit sleeve 4 is fixedly connected with the surface of the inner sleeve 1, a diversion trench 5 is formed in the inner sleeve 1, a movable sleeve 6 is slidably connected to the surface of the inner sleeve 1, a threaded sleeve 7 is fixedly connected to the inner part of the movable sleeve 6, the inner wall of the threaded sleeve 7 is in threaded connection with the surface of the inner sleeve 1, and the right side of the outer sleeve 2 extends to the inner part of the movable sleeve 6 and is slidably connected with the inner wall of the movable sleeve 6.

Referring to fig. 1, a stopper 8 is fixedly connected to the right side of the inner sleeve 1, and the stopper 8 is matched with the inner sleeve 1.

As a technical optimization scheme of the utility model, the stop block 8 is arranged, so that the inner sleeve 1 can be limited, and the phenomenon that the inner sleeve 1 completely falls into a blood vessel is prevented.

Referring to fig. 2, a stopper 9 is fixedly connected to the right side of the outer sleeve 2, and the surface of the stopper 9 is in contact with the inner wall of the moving sleeve 6.

As a technical optimization scheme of the utility model, the outer sleeve 2 can be limited by arranging the limiting block 9, so that the outer sleeve 2 is prevented from being separated from the movable sleeve 6.

Referring to fig. 1, the surface of the moving sleeve 6 is provided with anti-skid patterns 10, and the anti-skid patterns 10 are matched with the moving sleeve 6 for use.

As a technical optimization scheme of the utility model, the anti-skid patterns 10 are arranged, so that a user can conveniently rotate the movable sleeve 6, and the comfort level of the user is improved.

The working principle and the using flow of the utility model are as follows: when the device is used, firstly, the double sleeves are inserted into the aorta, the moving sleeve 6 is rotated after the double sleeves are inserted, the moving sleeve 6 drives the threaded sleeve 7 to rotate, the threaded sleeve 7 drives the moving sleeve 6 to move leftwards through threads, the moving sleeve 6 drives the outer sleeve 2 to move leftwards, the left side of the outer sleeve 2 is outwards arched through the convex cutting line 3 formed in the surface by extrusion force, the surface of the outer sleeve 2 is in tight contact with the inner wall of the blood vessel for limiting and fixing, and finally, the flow is guided through the guide groove 5 in the inner sleeve 1.

To sum up: this double cannula, through inserting double cannula to the inside of aorta, after inserting, rotatory removal cover 6, remove cover 6 drive swivel nut 7 is rotatory, swivel nut 7 moves left through the screw thread drive removal cover 6, it moves left to remove cover 6 drive outer tube 2, the left side of outer tube 2 receives the extrusion force to outwards arch through the protruding cutting line 3 that the surface was seted up and makes the surface of outer tube 2 and the inner wall in blood vessel in close contact with carry out spacing fixedly, finally, guide through the guiding gutter 5 of interior sleeve 1 inside, thereby the advantage of being convenient for support fixedly has been possessed, the majority of current double cannula has been the direct insertion blood vessel inside, but the aorta diameter is wider this phenomenon that just makes the double cannula appear at will easily sliding during the time of inserting, lead to unable effectual use of double cannula, the problem of double cannula practicality has been reduced.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Double cannula, comprising an inner cannula (1), characterized in that: the utility model discloses a sleeve pipe, including inner tube (1), sleeve pipe (2), multichannel protruding cutting line (3) have been seted up on the surface of outer tube (2), the left side fixedly connected with stop collar (4) of outer tube (2), the inner wall of stop collar (4) and the fixed surface of inner tube (1) are connected, guiding gutter (5) have been seted up to the inside of inner tube (1), the surface sliding connection of inner tube (1) has movable sleeve (6), the inside fixedly connected with swivel nut (7) of movable sleeve (6), the inner wall of swivel nut (7) and the surface threaded connection of inner tube (1), the right side of outer tube (2) extends to the inside of movable sleeve (6) and with the inner wall sliding connection of movable sleeve (6).

2. A double cannula according to claim 1, wherein: the right side of the inner sleeve (1) is fixedly connected with a stop block (8), and the stop block (8) is matched with the inner sleeve (1).

3. A double cannula according to claim 1, wherein: the right side of the outer sleeve (2) is fixedly connected with a limiting block (9), and the surface of the limiting block (9) is in contact with the inner wall of the movable sleeve (6).

4. A double cannula according to claim 1, wherein: anti-skid patterns (10) are formed on the surface of the movable sleeve (6), and the anti-skid patterns (10) are matched with the movable sleeve (6).