CN211634504U

CN211634504U - Negative pressure suction device

Info

Publication number: CN211634504U
Application number: CN201921711183.2U
Authority: CN
Inventors: 周惠丽; 罗银根
Original assignee: Ezhou Central Hospital
Current assignee: Ezhou Central Hospital
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-10-09
Anticipated expiration: 2029-10-12

Abstract

The utility model relates to a negative pressure suction device, which comprises a sleeve; a base is arranged at the bottom of the sleeve, a liquid inlet hole communicated with the sleeve is arranged in the base, and a negative pressure suction pipe is arranged at one end, far away from the sleeve, of the liquid inlet hole; the top of the sleeve is provided with a cover, the middle part of the cover is provided with a through hole, a piston rod is arranged in the through hole, the lower end of the piston rod is provided with a piston connection, the outer side wall of the piston is in sealed sliding connection with the inner side wall of the sleeve, the upper end of the piston rod is connected with the bottom in the cover body, and the cover body is sleeved on the cover; a spring is arranged in the sleeve cover body, and the upper end of the spring is propped against the bottom in the sleeve cover body. The utility model has the advantages that: the negative pressure suction device is simple in structure and low in production cost, when the negative pressure suction device is used, gas in the sleeve is discharged by pressing the sleeve cover body with hands, the spring contracts, the negative pressure suction pipe is placed at a position needing to suck liquid, the hands are loosened, the sleeve cover body rises under the action of the spring, meanwhile, the sleeve cover body drives the piston to rise through the piston rod, and the liquid is sucked into the sleeve, so that the operation structure is realized.

Description

Negative pressure suction device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a negative pressure suction device.

Background

The hematocele hydrops and exudative liquid at the operation part need to be sucked by the negative pressure suction device frequently in the surgical operation to ensure that the operation can be carried out smoothly, but the existing negative pressure suction device has the disadvantages of generally more complex structure, high production cost and inconvenient use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a negative pressure suction device is provided, solve the not enough of prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a negative pressure suction device comprises a sleeve; a base is arranged at the bottom of the sleeve, a liquid inlet hole communicated with the sleeve is formed in the base, and a negative pressure suction pipe is arranged at one end, far away from the sleeve, of the liquid inlet hole; the top of the sleeve is provided with a cover, the middle of the cover is provided with a through hole, a piston rod is arranged in the through hole, the lower end of the piston rod is provided with a piston connection, the outer side wall of the piston is in sealed sliding connection with the inner side wall of the sleeve, the upper end of the piston rod is connected with the bottom in the cover body, and the cover body is sleeved on the cover; the cover lid is internally provided with a spring, the upper end of the spring is abutted to the bottom in the cover lid, and the lower end of the spring is abutted to the top of the cover lid.

The utility model has the advantages that: the negative pressure suction device is simple in structure and low in production cost, when the negative pressure suction device is used, gas in the sleeve is discharged by pressing the sleeve cover body with hands, the spring contracts, the negative pressure suction pipe is placed at a position needing to suck liquid, the hands are loosened, the sleeve cover body rises under the action of the spring, meanwhile, the sleeve cover body drives the piston to rise through the piston rod, and the liquid is sucked into the sleeve, so that the operation structure is realized.

Further: the outer side wall of the sleeve is provided with scales.

The beneficial effects of the further scheme are as follows: can conveniently observe the amount of the liquid sucked in the sleeve

Further: the housing inside wall is equipped with first internal thread, the sleeve lateral wall be equipped with first internal thread matched with first external screw thread, the housing with the sleeve passes through first internal thread with first external screw thread threaded connection.

The beneficial effects of the further scheme are as follows: the cover can be conveniently fixed on the top of the sleeve.

Further: the cap outer diameter is equal to the sleeve outer diameter.

The beneficial effects of the further scheme are as follows: the cover body can freely lift.

Further: the middle of the bottom in the cap body is provided with a connector, the outer side wall of the connector is provided with a second external thread, the top of the piston rod is provided with a thread groove, the inner side wall of the thread groove is provided with a second internal thread matched with the second external thread, and the connector is arranged in the thread groove and passes through the second external thread and the second internal thread for threaded connection.

The beneficial effects of the further scheme are as follows: the piston rod can be conveniently detached from the cover body, so that the spring and the cover can be installed.

Further: the negative pressure suction pipe is provided with a flow stopping clip.

The beneficial effects of the further scheme are as follows: the flow stopping clip can close the negative pressure suction pipe passage after sucking liquid into the sleeve to prevent the liquid from flowing backwards.

Drawings

Fig. 1 is a schematic structural view of a negative pressure suction device according to an embodiment of the present invention;

FIG. 2 is a front cross-sectional view of a vacuum suction device according to an embodiment of the present invention;

in the figure: 1. a sleeve; 11. calibration; 12. a first external thread; 2. a base; 21. a liquid inlet hole; 3. A negative pressure suction pipe; 31. a flow stopping clip; 4. a cover; 41. a through hole; 42. a first internal thread; 5. a piston rod; 51. a thread groove; 511. a second internal thread; 6. a piston; 7. sleeving a cover body; 71. a connector; 711. a second external thread; 8. a spring.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example one

As shown in fig. 1-2, a negative pressure suction device includes a sleeve 1; the bottom of the sleeve 1 is provided with a base 2, a liquid inlet hole 21 communicated with the sleeve 1 is arranged in the base 2, and one end of the liquid inlet hole 21 far away from the sleeve is provided with a negative pressure suction pipe 3; the top of the sleeve 1 is provided with a cover 4, the middle part of the cover 4 is provided with a through hole 41, a piston rod 5 is arranged in the through hole 41, the lower end of the piston rod 5 is provided with a piston 6 for connection, the outer side wall of the piston 6 is in sealed sliding connection with the inner side wall of the sleeve 1, the upper end of the piston rod 5 is connected with the inner bottom of a cover body 7, and the cover body 7 is sleeved on the cover 4; a spring 8 is arranged in the cover body 7, the upper end of the spring 8 is propped against the bottom in the cover body 7, and the lower end of the spring 8 is propped against the top of the cover 4.

The outer side wall of the sleeve 1 is provided with a scale 11.

Example two

The inside wall of the cover 4 is provided with a first internal thread 42, the outside wall of the sleeve 1 is provided with a first external thread 12 matched with the first internal thread 42, and the cover 4 is in threaded connection with the sleeve 1 through the first internal thread 42 and the first external thread 12.

The outer diameter of the cap 4 is equal to the outer diameter of the sleeve 1.

EXAMPLE III

The middle of the bottom in the cover body 7 is provided with a connector 71, the outer side wall of the connector 71 is provided with a second external thread 711, the top of the piston rod 5 is provided with a thread groove 51, the inner side wall of the thread groove 51 is provided with a second internal thread 511 matched with the second external thread 711, the connector 71 is arranged in the thread groove 51 and is in threaded connection with the second external thread 711 and the second internal thread 511, during assembly, the spring 8 and the cover 4 are sequentially placed in the cover body 7, and then the upper end of the piston rod 5 penetrates through the cover 4 and the spring and is screwed and fixed on the connector 71.

Example four

The negative pressure suction pipe 3 is provided with a flow stopping clip 31.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A negative pressure suction device is characterized by comprising a sleeve (1); a base (2) is arranged at the bottom of the sleeve (1), a liquid inlet hole (21) communicated with the sleeve (1) is formed in the base (2), and a negative pressure suction pipe (3) is arranged at one end, far away from the sleeve, of the liquid inlet hole (21); the top of the sleeve (1) is provided with a cover hood (4), the middle of the cover hood (4) is provided with a through hole (41), a piston rod (5) is arranged in the through hole (41), the lower end of the piston rod (5) is provided with a piston (6) for connection, the outer side wall of the piston (6) is in sealed sliding connection with the inner side wall of the sleeve (1), the upper end of the piston rod (5) is connected with the inner bottom of a cover hood body (7), and the cover hood body (7) is sleeved on the cover hood (4); be equipped with spring (8) in cover lid (7), spring (8) upper end with the bottom offsets in cover lid (7), spring (8) lower extreme with housing (4) top offsets.

2. A vacuum suction device according to claim 1, characterized in that the sleeve (1) is provided with graduations (11) on its outer side wall.

3. A vacuum suction device according to claim 1, characterized in that the inner side wall of the cover (4) is provided with a first internal thread (42), the outer side wall of the sleeve (1) is provided with a first external thread (12) matching with the first internal thread (42), and the cover (4) and the sleeve (1) are in threaded connection through the first internal thread (42) and the first external thread (12).

4. A vacuum suction device according to claim 1, characterized in that the outer diameter of the cover (4) is equal to the outer diameter of the sleeve (1).

5. The negative pressure suction device as claimed in claim 1, wherein a connector (71) is arranged in the middle of the bottom in the cover body (7), a second external thread (711) is arranged on the outer side wall of the connector (71), a thread groove (51) is arranged at the top of the piston rod (5), a second internal thread (511) matched with the second external thread (711) is arranged on the inner side wall of the thread groove (51), and the connector (71) is arranged in the thread groove (51) and is in threaded connection with the second internal thread (511) through the second external thread (711).

6. A vacuum suction device according to claim 1, characterized in that the vacuum suction tube (3) is provided with a flow stop clip (31).