CN211675582U - Negative pressure adjustable negative pressure drainage bottle - Google Patents

Abstract

The utility model relates to the technical field of medical appliances, in particular to a negative pressure drainage bottle with adjustable negative pressure, which comprises a bottle body, a bottle cap and a negative pressure adjusting device; the bottle cap comprises a cap body, a cap edge positioned around the cap body and a connecting cover arranged by penetrating through the cap body; the negative pressure adjusting device comprises an adjusting cover, a sealing element, a pressure adjusting mechanism and a pressure compensation mechanism, wherein the adjusting cover comprises an upper cover body, a lower cover body and a partition plate for separating the upper cover body and the lower cover body, a first through hole is formed in the partition plate, a pipette communicated with the outside is arranged on the side wall of the upper cover body, and a second through hole is formed in the bottom of the lower cover body; the adjusting cover is connected with the connecting cover through the upper cover body, the sealing element is arranged in the upper cover body, the bottom of the adjusting cover is in contact with the partition plate and used for sealing the first through hole, the pressure compensation mechanism is arranged in the lower cover body and penetrates through the first through hole to be in contact with the sealing element, the pressure adjusting mechanism is arranged in the connecting cover, the bottom of the pressure adjusting mechanism is in contact with the sealing element, and the top of the pressure adjusting mechanism penetrates out of the connecting cover to form an adjusting.

Description

Negative pressure adjustable negative pressure drainage bottle

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a negative pressure adjustable negative pressure drainage bottle.

Background

The negative pressure drainage device is a conventional medical instrument and is suitable for continuous drainage of wound secretion in or after an operation. The existing negative pressure drainage device has the following defects: (1) the common extrudable pressure deformation negative pressure drainage bottle in the market discharges gas in the bottle through manual extrusion of the drainage bottle to control the pressure value in the bottle, but the negative pressure generated by the method is difficult to accurately control, too high negative pressure easily causes too high drainage speed and damages body organs, and too low negative pressure easily causes too much effusion; (2) some comparatively accurate negative pressure drainage devices need to use the vacuum aspiration ware to produce the negative pressure, can control the interior negative pressure of device comparatively accurately, but owing to need supporting facility to adjust the negative pressure, not only the use is loaded down with trivial details, need occupy great space moreover, and the round trip movement of being not convenient for brings the difficulty for the treatment process.

Therefore, it is necessary to design a portable negative pressure drainage device which can conveniently and accurately regulate and control the negative pressure.

SUMMERY OF THE UTILITY MODEL

In order to solve the unable accuracy of current portable drainage bottle and set up required negative pressure value, also unable all the time with invariable negative pressure imbibition, and the negative pressure drainage device that can the accurate control negative pressure uses limited problem again, the utility model provides a negative pressure adjustable negative pressure drainage bottle realizes the controllable regulation to the drainage negative pressure through the cooperation between pressure regulating mechanism, sealing member and the pressure compensation mechanism, the effectual above-mentioned problem of having solved.

The utility model provides a technical scheme that its technical problem adopted is:

a negative pressure adjustable negative pressure drainage bottle comprises

A bottle body;

the bottle cap is connected with the bottle body in a sealing mode and comprises a cap body, a cap edge and a connecting cover, wherein the cap edge is positioned around the cap body, and the connecting cover penetrates through the cap body; and

the negative pressure adjusting device comprises an adjusting cover, a sealing piece, a pressure adjusting mechanism and a pressure compensation mechanism, wherein the adjusting cover comprises an upper cover body, a lower cover body and a partition board for separating the upper cover body and the lower cover body, a first through hole for communicating the upper cover body and the lower cover body is formed in the partition board, a pipette for communicating with the outside is arranged on the side wall of the upper cover body, and a second through hole is formed in the bottom of the lower cover body;

the pressure compensation mechanism is arranged in the lower cover body and penetrates through the through hole I to be contacted with the sealing element, the pressure regulating mechanism is arranged in the connecting cover, the bottom of the pressure regulating mechanism is contacted with the sealing element, and the top of the pressure regulating mechanism penetrates through the connecting cover to form a regulating part convenient to operate;

in the drainage process, the pressure regulating mechanism moves upwards for a specified distance through the adjusting part, the pressure compensating mechanism pushes the sealing element to move upwards, the first through hole is opened, and liquid is sucked into the drainage bottle through the pipette.

As preferred, above-mentioned pressure regulating mechanism is including adjusting cap, adjusting screw, T type regulation swivel nut and pressure regulating spring, the swivel nut is adjusted to T type includes mutually perpendicular's horizontal portion and perpendicular portion, the pressure regulating spring cover is established in perpendicular portion, top and horizontal portion contact, bottom and sealing member contact, in the T type regulation swivel nut is inserted to adjusting screw's bottom, adjust swivel nut threaded connection with T type, connecting cover is passed at adjusting screw's top, forms the regulation portion of being convenient for operate, regulation portion and regulation cap fixed connection.

Preferably, the pressure compensation mechanism comprises an ejector piece and a pressure compensation spring, the pressure compensation spring is arranged in the lower cover body, the top of the pressure compensation spring is in contact with the ejector piece, and the top of the ejector piece penetrates through the first through hole to be in contact with the sealing piece.

Preferably, the ejection part comprises a first base and an ejector rod arranged on the first base, the first base is of a hollow structure, liquid conveniently flows into the first through hole and then enters the drainage bottle through the hollow structure, the top of the pressure compensation spring is in contact with the first base, and the ejector rod penetrates through the first through hole and is in contact with the sealing part.

Preferably, the sealing element is a rubber piston, the top of the rubber piston is in slidable sealing connection with the inner wall of the connecting cover, and the bottom of the rubber piston is in contact with the partition plate and is used for sealing the first through hole; the pressure regulating mechanism further comprises a gasket, and the gasket is arranged between the sealing piece and the T-shaped regulating threaded sleeve and used for preventing the rubber piston from deforming.

Preferably, the top of the cover body is provided with a circle of negative pressure regulation indication scale, and the edge of the bottom of the regulation cap is provided with an outward convex indication part used for matching with the negative pressure regulation indication scale.

As preferred, foretell negative pressure adjustable negative pressure drainage bottle still includes negative pressure indicating device in the bottle, negative pressure indicating device includes indicator housing, gradiometer and indicating spring in the bottle, the bottom of indicator housing is equipped with the through-hole three that is used for with the inside intercommunication of drainage bottle, and the top is fixed on the lower surface of lid, the gradiometer includes base two and the scale rod of setting on base two, be equipped with the negative pressure indication scale on the scale rod, the gradiometer sets up in the indicator housing, makes the top of scale rod pass the lid, indicating spring sets up between the bottom of base two and indicator housing for negative pressure change drive gradiometer rises or descends in the drainage bottle.

Preferably, the negative pressure adjusting device further comprises an L-shaped connecting pipe, the L-shaped connecting pipe comprises a long portion and a short portion which are perpendicular to each other, the short portion is communicated with the pipette through a rubber pipe after penetrating through the cover body, and the long portion is located on the upper surface of the cover body and is used for being communicated with the outside.

Preferably, the cover edge is provided with a connecting buckle for tying a rope.

Preferably, the bottom of the lower cover body of the adjusting cover is composed of a bottom cover buckled on the lower cover body, and the second through hole is formed in the bottom cover.

The utility model has the advantages that: (1) the negative pressure adjustable negative pressure drainage bottle of the utility model realizes the controllable adjustment of the drainage negative pressure through the cooperation between the pressure regulating mechanism, the sealing element and the pressure compensation mechanism, starts the negative pressure drainage through the pressure regulating mechanism, and always keeps the drainage bottle to carry out the drainage with the set negative pressure through the balance relation between the pressure regulating mechanism and the pressure compensation mechanism, thereby avoiding the over-high drainage speed caused by the over-large negative pressure, damaging the body organs or causing the excessive accumulated liquid caused by the over-small negative pressure;

(2) the negative pressure drainage bottle of the utility model can customize bottles with different volumes according to different requirements, and is convenient to carry without an additional negative pressure drainage device in the using process;

(3) the utility model arranges a circle of negative pressure adjusting indication scale on the top of the cover body 21, and arranges an indication part on the adjusting cap, and the indication part can point to the required negative pressure scale value by rotating the adjusting cap, thus the liquid can be absorbed by the required negative pressure, and the operation is convenient;

(4) the utility model discloses negative pressure indicating device has still been set up, and the graduator can rise or descend along with the interior negative pressure change of drainage bottle to read the negative pressure value in the drainage bottle through the graduator, know the interior negative pressure situation of change of drainage bottle at any time.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a perspective view of the negative pressure drainage bottle of the present invention;

FIG. 2 is a front view of the negative pressure drainage bottle of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a schematic structural view of the bottle cap of the present invention;

FIG. 5 is a schematic structural view of the adjusting cover of the present invention;

fig. 6 is a schematic structural view of the ejector of the present invention;

FIG. 7 is a schematic view of the structure of the scale of the present invention;

in the figure: 1. a bottle body; 21. a cover body; 211. negative pressure regulation indication scale; 22. a cover rim; 221. a connecting buckle; 23. a connecting cover; 31. an adjustment cover; 311. an upper cover body; 312. a lower cover body; 313. a partition plate; 314. a first through hole; 315. a pipette; 316. a second through hole; 317. a bottom cover; 32. a seal member; 33. a pressure regulating mechanism; 331. an adjusting cap; 3311. an indicating section; 332. adjusting the screw rod; 333. a T-shaped adjusting screw sleeve; 334. a pressure regulating spring; 335. a gasket; 34. a pressure compensation mechanism; 341. ejecting the part; 3411. a first base; 3412. a top rod; 342. a pressure compensating spring; 35. an L-shaped connecting pipe; 351. a long portion; 352. a short portion; 41. an indicator cover; 42. a scale; 421. a second base; 422. a graduated rod; 423. negative pressure indication scales; 43. an indicator spring; 44. and a third through hole.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

A negative pressure adjustable negative pressure drainage bottle is shown in figures 1-5 and comprises a bottle body 1, a bottle cap and a negative pressure adjusting device, wherein the bottle cap is hermetically connected with the bottle body 1; the bottle cap comprises a cap body 21, a cap rim 22 positioned around the cap body 21 and a connecting cover 23 arranged through the cap body 21; the negative pressure adjusting device comprises an adjusting cover 31, a sealing element 32, a pressure adjusting mechanism 33 and a pressure compensating mechanism 34, wherein the adjusting cover 31 comprises an upper cover body 311, a lower cover body 312 and a partition 313 for separating the upper cover body 311 from the lower cover body 312, a first through hole 314 for communicating the upper cover body 311 with the lower cover body 312 is arranged on the partition 313, a pipette 315 for communicating with the outside is arranged on the side wall of the upper cover body 311, and a second through hole 316 is arranged at the bottom of the lower cover body 312; the adjusting cover 31 is connected with the part of the connecting cover 23 below the cover body 21 through an upper cover body 311, the sealing element 32 is arranged in the upper cover body 311, the bottom part of the sealing element contacts with a partition 313 for sealing a first through hole 314, the pressure compensation mechanism 34 is arranged in a lower cover body 312 and contacts with the sealing element 32 through the first through hole 314, the pressure regulating mechanism 33 is arranged in the connecting cover 23, the bottom part of the pressure regulating mechanism contacts with the sealing element 32, and the top part of the pressure regulating mechanism penetrates through the connecting cover 23 to form an adjusting part 330 convenient to operate; during drainage, the pressure regulating mechanism 33 is moved upwards by a specified distance through the regulating part 330, the pressure compensating mechanism 34 pushes the sealing element 32 upwards, the first through hole 314 is opened, and liquid is sucked into the drainage bottle through the pipette 315.

In a specific embodiment, the bottle body 1 and the bottle cap may be connected by heat melting to achieve a sealing effect, and the adjusting cover 31 may be screwed with a portion of the connecting cover 23 below the cover body 21 through the upper cover body 311.

In a specific embodiment, as shown in fig. 3, the pressure regulating mechanism 33 includes an adjusting cap 331, an adjusting screw 332, a T-shaped adjusting screw 333 and a pressure regulating spring 334, the T-shaped adjusting screw 333 includes a horizontal portion and a vertical portion perpendicular to each other, the pressure regulating spring 334 is sleeved on the vertical portion, the top portion is in contact with the horizontal portion, the bottom portion is in contact with the sealing member 32, the bottom portion of the adjusting screw 332 is inserted into the T-shaped adjusting screw 333 and is in threaded connection with the T-shaped adjusting screw 333, the top portion of the adjusting screw 332 passes through the connecting cover 23 to form an adjusting portion 330 convenient to operate, and the adjusting portion 330 is fixedly connected with the adjusting cap 331.

In a specific embodiment, as shown in fig. 3, the pressure compensation mechanism 34 includes an ejector 341 and a pressure compensation spring 342, the pressure compensation spring 342 is disposed in the lower housing 312, the top of the ejector is in contact with the ejector 341, and the top of the ejector 341 is in contact with the sealing member 32 through the first through hole 314.

Assuming that the pressure value inside the connecting cover 23 is P0 (i.e. atmospheric pressure), the pressure value inside the upper cover body 311 is P1 (i.e. pipette 315 pressure), the pressure inside the lower cover body 312 is P2 (i.e. internal pressure of the drainage bottle), the elastic force value of the pressure regulating spring 334 is f1, and the elastic force value of the pressure compensating spring 342 is f 2. In the initial state, P0= P1, P2 is negative pressure, f1= f2, and the whole system is in an equilibrium state. The adjusting cap 331 is rotated clockwise, so that the adjusting screw 332 drives the T-shaped adjusting screw 333 to move upwards, at this time, the pressure adjusting spring 334 extends, f1 decreases, f2> f1, the pressure compensating spring 342 extends to drive the ejector 341 to move upwards, the sealing element 32 is ejected, the sealing element 32 is opened, negative pressure is generated in the upper cover 311, the liquid suction pipe 315 starts to suck liquid, and the sucked liquid flows into the upper cover 311 through the liquid suction pipe 315 and flows into the bottle body 1 through the first through hole 314 and the second through hole 316.

Because the upper cover 311 is in a negative pressure state, i.e. P1< P0, the sealing element 32 will be lowered to block the first through hole 314, at this time, the piston is closed, and the liquid suction is stopped. After the sealing member 32 is closed, since f2> f1, the pressure compensation spring 342 extends to drive the ejector 341 to move upward to eject the sealing member 32, and the sealing member 32 opens again to generate negative pressure in the upper housing 311 to start liquid suction. The process is continuously cycled until the end of imbibition. The above process can ensure that the drainage bottle absorbs liquid under the set constant pressure.

In one embodiment, as shown in fig. 6, the ejector 341 includes a first base 3411 and a rod 3412 disposed on the first base 3411, the first base 3411 is hollow so that the liquid can flow into the first through hole 314 and then enter the drainage bottle, the top of the pressure compensation spring 342 contacts the first base 3411, and the rod 3412 passes through the first through hole 314 and contacts the sealing element 32. In the initial state, rod 3412 is in contact with seal 32, and base 3411 is spaced from spacer 313.

In one specific embodiment, as shown in fig. 3, the sealing member 32 is a rubber piston, the top of which is slidably and sealingly connected with the inner wall of the connecting cover 23, and the bottom of which contacts the partition 313 for sealing the first through hole 314; the pressure regulating mechanism 33 further includes a gasket 335, and the gasket 335 is disposed between the sealing member 32 and the T-shaped adjusting screw 333 for preventing the rubber piston from being deformed.

In a specific embodiment, as shown in fig. 3, the rubber piston (seal 32) is a T-shaped structure, the T-shaped rubber piston is slidably and hermetically connected with the inner wall of the connecting cover 23 through the transverse part of the upper surface, and blocks the first through hole 314 through the vertical part of the lower surface, so that the upper cover body 311 has a larger space therein.

In a specific embodiment, as shown in fig. 1, the top of the cover 21 is provided with a circle of negative pressure adjustment indicating scales 211, and the bottom edge of the adjusting cap 331 is provided with an outward protruding indicating portion 3311 for cooperating with the negative pressure adjustment indicating scales 211. The adjustment cap 331 is rotated to adjust the scale value (i.e., the required negative pressure value) required by the specified value of the indication portion 3311, so that the negative pressure can be set according to the required negative pressure value, thereby avoiding the excessive effusion caused by too high drainage speed and damage to body organs or too small negative pressure.

In a specific embodiment, as shown in fig. 3 and 7, the negative pressure adjustable negative pressure drainage bottle further comprises an in-bottle negative pressure indicating device, the in-bottle negative pressure indicating device comprises an indicating cover 41, a graduator 42 and an indicating spring 43, a third through hole 44 for communicating with the inside of the drainage bottle is formed in the bottom of the indicating cover 41, the top of the indicating cover 41 is fixed on the lower surface of the cover body 21, the graduator 42 comprises a second base 421 and a graduated rod 422 arranged on the second base 421, negative pressure indicating scales 423 are arranged on the graduated rod 422, the graduator 42 is arranged in the indicating cover 41, the top of the graduated rod 422 penetrates through the cover body 21, and the indicating spring 43 is arranged between the second base 421 and the bottom of the indicating cover 41 and used for driving the graduator 42 to ascend or descend according to the change of the negative pressure. The negative pressure change condition in the drainage bottle can be known at any time through the graduator 41.

In a specific embodiment, as shown in fig. 1 and 4, the negative pressure adjusting apparatus further includes an L-shaped connecting pipe 35, the L-shaped connecting pipe 35 includes a long portion 351 and a short portion 352 perpendicular to each other, the short portion 352 passes through the cover body 21 and communicates with the liquid suction pipe 315 through a rubber pipe, and the long portion 351 is located on the upper surface of the cover body 21 and communicates with the outside.

In one embodiment, as shown in FIG. 1, the cover rim 22 is provided with a connector clasp 221 for a tether. The connecting buckle 221 can be tied with a hanging rope, and when more articles are in the hand, the hanging rope can be directly lifted.

In a specific embodiment, as shown in fig. 3, the bottom of the lower housing 312 of the adjustment housing 31 is formed by a bottom cover 317 fastened to the lower housing 312, and the second through hole 316 is disposed on the bottom cover 317. The bottom cap 317 is provided to facilitate the assembly of the ejector 341 and the pressure compensating spring 342 within the lower housing 312. In addition, a bottom cover similar to the bottom cover 317 may be provided on the indication cover 41 to facilitate assembly.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The utility model provides a negative pressure adjustable negative pressure drainage bottle which characterized in that: comprises that

A bottle body (1);

the bottle cap is connected with the bottle body (1) in a sealing mode and comprises a cap body (21), a cap edge (22) positioned around the cap body (21) and a connecting cover (23) penetrating through the cap body (21); and

the negative pressure adjusting device comprises an adjusting cover (31), a sealing element (32), a pressure adjusting mechanism (33) and a pressure compensating mechanism (34), wherein the adjusting cover (31) comprises an upper cover body (311), a lower cover body (312) and a partition plate (313) for separating the upper cover body (311) from the lower cover body (312), a first through hole (314) for communicating the upper cover body (311) with the lower cover body (312) is formed in the partition plate (313), a liquid suction pipe (315) for communicating with the outside is arranged on the side wall of the upper cover body (311), and a second through hole (316) is formed in the bottom of the lower cover body (312);

the adjusting cover (31) is connected with a part, located below the cover body (21), of the connecting cover (23) through the upper cover body (311), the sealing element (32) is arranged in the upper cover body (311), the bottom of the sealing element is in contact with the partition plate (313) and used for sealing the first through hole (314), the pressure compensation mechanism (34) is arranged in the lower cover body (312) and penetrates through the first through hole (314) to be in contact with the sealing element (32), the pressure regulating mechanism (33) is arranged in the connecting cover (23), the bottom of the pressure regulating mechanism is in contact with the sealing element (32), and the top of the pressure regulating mechanism penetrates through the connecting cover (23) to form an adjusting part (330);

in the drainage process, the pressure regulating mechanism (33) is moved upwards for a specified distance through the regulating part (330), the pressure compensating mechanism (34) pushes the sealing element (32) to move upwards, the first through hole (314) is opened, and liquid is sucked into the drainage bottle through the pipette (315).

2. The negative pressure adjustable negative pressure drainage bottle of claim 1, wherein: pressure regulating mechanism (33) are including adjusting cap (331), adjusting screw (332), T type regulation swivel nut (333) and pressure regulating spring (334), T type regulation swivel nut (333) is including mutually perpendicular's horizontal portion and perpendicular portion, pressure regulating spring (334) cover is established in perpendicular portion, top and horizontal portion contact, bottom and sealing member (32) contact, the bottom of adjusting screw (332) inserts in T type regulation swivel nut (333), adjusts swivel nut (333) threaded connection with T type, connecting cover (23) is passed at the top of adjusting screw (332), forms the regulation portion (330) of being convenient for operate, regulation portion (330) and regulation cap (331) fixed connection.

3. The negative pressure adjustable negative pressure drainage bottle of claim 1, wherein: the pressure compensation mechanism (34) comprises an ejector piece (341) and a pressure compensation spring (342), the pressure compensation spring (342) is arranged in the lower cover body (312), the top of the pressure compensation spring is in contact with the ejector piece (341), and the top of the ejector piece (341) passes through the first through hole (314) to be in contact with the sealing element (32).

4. The negative pressure adjustable negative pressure drainage bottle of claim 3, wherein: the ejection part (341) comprises a first base (3411) and an ejector rod (3412) arranged on the first base (3411), the first base (3411) is of a hollow structure, so that liquid can conveniently flow into the first through hole (314) and then enter the drainage bottle through the hollow structure, the top of the pressure compensation spring (342) is in contact with the first base (3411), and the ejector rod (3412) passes through the first through hole (314) and is in contact with the sealing part (32).

5. The negative pressure adjustable negative pressure drainage bottle of claim 2, wherein: the sealing element (32) is a rubber piston, the top of the rubber piston is connected with the inner wall of the connecting cover (23) in a sliding and sealing mode, and the bottom of the rubber piston is in contact with a partition plate (313) and used for sealing the first through hole (314); the pressure regulating mechanism (33) further comprises a gasket (335), and the gasket (335) is arranged between the sealing element (32) and the T-shaped regulating screw sleeve (333) and used for preventing the rubber piston from deforming.

6. The negative pressure adjustable negative pressure drainage bottle of claim 2, wherein: lid (21) top is equipped with round negative pressure and adjusts instruction scale (211), the bottom edge of adjusting cap (331) is equipped with outside convex instruction portion (3311) for adjust instruction scale (211) cooperation with the negative pressure.

7. The negative pressure adjustable negative pressure drainage bottle of claim 1, wherein: still include negative pressure indicating device in the bottle, negative pressure indicating device in the bottle is including instructing cover (41), gradiometer (42) and indicating spring (43), the bottom of instructing cover (41) is equipped with through-hole three (44) that are used for with the inside intercommunication of drainage bottle, and the top is fixed on the lower surface of lid (21), gradiometer (42) are including base two (421) and set up graduated rod (422) on base two (421), be equipped with negative pressure indication scale (423) on graduated rod (422), gradiometer (42) set up in instructing cover (41), make the top of graduated rod (422) pass lid (21), indicating spring (43) set up between the bottom of base two (421) and instructing cover (41) for negative pressure change drive gradiometer (42) rise or descend in the drainage bottle.

8. The negative pressure adjustable negative pressure drainage bottle of claim 1, wherein: the negative pressure adjusting device further comprises an L-shaped connecting pipe (35), the L-shaped connecting pipe (35) comprises a long part (351) and a short part (352) which are perpendicular to each other, the short part (352) penetrates through the cover body (21) and then is communicated with the liquid suction pipe (315) through a rubber pipe, and the long part (351) is located on the upper surface of the cover body (21) and is used for being communicated with the outside.

9. The negative pressure adjustable negative pressure drainage bottle of claim 1, wherein: the cover edge (22) is provided with a connecting buckle (221) for tying a rope.

10. The negative pressure adjustable negative pressure drainage bottle of claim 1, wherein: the bottom of the lower cover body (312) of the adjusting cover (31) is formed by a bottom cover (317) buckled on the lower cover body (312), and the second through hole (316) is formed in the bottom cover (317).

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