CN105056319A

CN105056319A - Negative pressure drainage device

Info

Publication number: CN105056319A
Application number: CN201510517977.5A
Authority: CN
Inventors: 朱光芹; 田红伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-08-24
Filing date: 2015-08-24
Publication date: 2015-11-18
Anticipated expiration: 2035-08-24
Also published as: CN105056319B

Abstract

The invention relates to medical equipment, in particular a negative pressure drainage device. The negative pressure drainage device comprises a liquid storage tank, a drainage pipe and a negative pressure pipe, wherein the drainage pipe and the negative pressure pipe are arranged on the liquid storage tank. The negative pressure pipe is connected with a negative pressure generator. The negative pressure generator comprises a drum and a sliding ring arranged on the drum in a rotating and sleeving mode, wherein the drum and the sliding ring are coaxially arranged. The sliding ring is symmetrically provided with an upper water tank and a lower water tank relative to the axis of the sliding ring. A negative pressure channel and an exhaust channel are arranged in the drum. The sliding ring is correspondingly provided with a negative pressure through hole and an exhaust through hole. A backboard negative pressure channel and a backboard exhaust channel are correspondingly arranged in the upper water tank and the lower water tank. The negative pressure drainage device is driven by liquid gravity, no electricity is needed, the negative pressure duration is long, pressure is stable, and reliability is high.

Description

Depression drainage device

Technical field

The present invention relates to a kind of medical apparatus and instruments, is a kind of depression drainage device specifically.

Background technology

For multiple postoperative patient, conventional negative pressure drainage, by outside the liquid body exudate lead body of wound surface or by negative compression minor cut or wound wound surface lacuna, is conducive to the healing of wound tissue.This negative pressure drainage requires that the negative pressure persistent period is long, pressure stability is controlled.The operation principle of existing depression drainage device can be divided into two kinds according to power resources, and a kind of is the piston tubular type negative pressure generator adopting manually driven negative pressure drainage ball or syringe-like, and another kind adopts motor-driven pressure pump type negative pressure generator.Manually driven negative pressure generator persistent period short, pressure transient, poor reliability, and adopt same container due to negative pressure cavity and liquid storage cylinder, cannot use continuously and easily cross infection occur; The pressure pump type negative pressure generator persistent period is long, negative pressure cavity and liquid storage cylinder adopt two different containers respectively, have stopped the danger of cross infection, but still there is pressure transient, the problem of poor reliability, once compression pump breaks down will affect the normal work of drainage device.

Summary of the invention

The object of the present invention is to provide a kind of negative pressure persistent period length, pressure stability, depression drainage device that reliability is high.

In order to reach above object, the technical solution adopted in the present invention is: this depression drainage device comprises fluid reservoir, be arranged on the drainage tube on fluid reservoir and negative tube, the delivery pipe of valve is provided with in the bottom of fluid reservoir, described negative tube connects negative pressure generator, described negative pressure generator comprises the coaxial rotary drum arranged, rotatably be sleeved on the slip ring on rotary drum, on described slip ring, axle center is symmetrically arranged with upper water box and lower header, described upper water box and lower header are by the backboard be fixedly connected on slip ring outer ring surface and the housing formation being fastened on backboard front, negative pressure channel and exhaust passage are set in described rotary drum, described negative pressure channel is communicated with negative tube, described negative pressure channel is provided with the negative pressure channel interface being positioned at rotary drum outer ring surface, described exhaust passage is provided with the exhaust passage interface being positioned at rotary drum outer ring surface, described negative pressure channel interface and exhaust passage interface are symmetrical arranged with the axle center of rotary drum, and be crisscross arranged at the axis direction of rotary drum, described slip ring is provided with in connection, the negative pressure through hole of outer ring surface and the inside and outside anchor ring aerofluxus through hole of connection, negative pressure channel interface on the corresponding rotary drum of inner port of described negative pressure through hole, exhaust passage interface on the corresponding rotary drum of inner port of described aerofluxus through hole, backboard negative pressure channel and backboard exhaust passage is provided with in described backboard, described backboard negative pressure channel is along the radial distribution of rotary drum, inner port corresponding negative pressure through hole external port is communicated to the far-end of upper water box or lower header, the corresponding aerofluxus through hole of inner port of described backboard exhaust passage, external port is communicated with the near-end of upper water box or lower header, described upper water box is communicated with proximally by connection tube with lower header, and described connection tube is provided with flow control valve, described flow control valve is mounted in the plunger valve in connection tube passage.

Beneficial effect of the present invention is: this depression drainage device adopts liquid gravity to drive, and without the need to electric energy, negative pressure persistent period length, pressure stability, reliability are high.

Accompanying drawing explanation

Fig. 1 is the structural representation of one embodiment of the invention.

Fig. 2 is the Facad structure schematic diagram of negative pressure generator.

Detailed description of the invention

As shown in Figure 1 and Figure 2, depression drainage device of the present invention comprises fluid reservoir 1, be arranged on drainage tube 2 on fluid reservoir 1 and negative tube 3, fluid reservoir 1, for depositing draining fluids, for convenience of using, can also be provided with the delivery pipe 11 of valve 12 in the bottom of fluid reservoir 1.Described negative tube 3 connects negative pressure generator, and negative pressure generator produces negative pressure and acts on by negative tube 3 and drainage tube 2 puncture needle being connected to drainage tube 2 front end, is drawn out to by liquid body exudate in fluid reservoir 1.

Described negative pressure generator comprise coaxial arrange rotary drum 4, be rotatably sleeved on slip ring 5 on rotary drum 4, described rotary drum 4 is had columned outer ring surface and is closely cooperated by the inner ring surface of this outer ring surface and slip ring 5, and slip ring 5 can rotate on rotary drum 4.On described slip ring 5, axle center is symmetrically arranged with upper water box 6 and lower header 7, described upper water box 6 and lower header 7 are by the backboard 61,71 be fixedly connected on slip ring 5 outer ring surface and the housing formation being fastened on backboard 61,71 front, upper water box 6 and lower header 7 are all along the radially-arranged strip structure of rotary drum 4 or spindle-type α-Fe2O3, and its height is much larger than width.

Negative pressure channel 41 and exhaust passage 42 are set in described rotary drum 4, described negative pressure channel 41 is communicated with negative tube 3, described negative pressure channel 41 is provided with the negative pressure channel interface being positioned at rotary drum 4 outer ring surface, described exhaust passage 42 is provided with the exhaust passage interface being positioned at rotary drum 4 outer ring surface, rotary drum 4 is also provided with the open interface being communicated with exhaust passage 42, is communicated with air.Described negative pressure channel interface and exhaust passage interface are symmetrical arranged with the axle center of rotary drum 4 and are crisscross arranged at the axis direction of rotary drum 4, and under rotary drum 4 stationary state, negative pressure channel interface upward opening, exhaust passage interface are under shed; Described slip ring 5 is provided with the negative pressure through hole 51 being communicated with inside and outside anchor ring and is communicated with inside and outside anchor ring aerofluxus through hole 52, negative pressure channel interface on the corresponding rotary drum 4 of inner port of described negative pressure through hole 51, exhaust passage interface on the corresponding rotary drum 4 of inner port of described aerofluxus through hole 52, because negative pressure channel interface and exhaust passage interface are symmetrical arranged with the axle center of rotary drum 4, one group of negative pressure through hole 51 and aerofluxus through hole 52 are respectively set on slip ring 5, with the axle center symmetric position of rotary drum 4.When slip ring 5 rotation makes the negative pressure through hole 51 of upper end just to negative pressure channel interface time, the aerofluxus through hole 52 of lower end also just in time connects exhaust passage interface.

Backboard negative pressure channel 62,72 and backboard exhaust passage 73 is provided with in described backboard 61,71, described backboard negative pressure channel 62,72 is communicated to the far-end of upper water box 6 or lower header 7 along the radial distribution of rotary drum 4, inner port corresponding negative pressure through hole 51 external port, and the corresponding aerofluxus through hole 52 of inner port of described backboard exhaust passage 73, external port are communicated with the near-end of upper water box 6 or lower header 7; The setting in two backboards of backboard negative pressure channel 62,72 and backboard exhaust passage 73 is also be symmetrical arranged with the axle center of rotary drum 4.When upper water box 6 rotates to top with slip ring 5 time, backboard negative pressure channel 62 on upper water box 6 is communicated with negative pressure channel interface and negative pressure channel 41 by the negative pressure through hole 51 of slip ring 5 upper end, and the backboard exhaust passage 73 on upper water box 6 is closed by the outer ring surface of rotary drum 4; Meanwhile, lower header 7 is positioned at the below of rotary drum 4, and the backboard negative pressure channel 72 on lower header 7 is closed by the outer ring surface of rotary drum 4, and the backboard exhaust passage on lower header 7 is communicated with logical exhaust passage interface and exhaust passage 42 by the negative pressure through hole 52 of slip ring 5 lower end.Slip ring 5 is revolved turnback, then can by the location swap of upper water box 6 and lower header 7.

Described upper water box 6 is communicated with proximally by connection tube 8 with lower header 7.

In order to the pressure size of the speed that flowed by regulates liquid and adjustable negative pressure, described connection tube 8 is provided with flow control valve 81.Described flow control valve 81 is mounted in the plunger valve in connection tube 8 passage.The speed of regulates liquid flowing is got final product by flow control valve 81.

Upper water box 6 and lower header 7 form two liquid containers be communicated with, time the liquid such as water filled by upper water box 6, the liquid such as water can flow in lower header 7 by connection tube 8 gradually, air in lower header 7 is discharged by exhaust passage 42, after liquid in upper water box 6 reduces, in negative pressure channel 41, produce negative pressure, act on fluid reservoir 1 by negative tube 3; After emptying rate of liquid in upper water box 6, as long as slip ring 5 is revolved turnback, the transposition of upper water box 6 and lower header 7, can continue to produce negative pressure.After fluid reservoir 1 is filled, open valve 12 and can discharge hydrops, realize continuous continual drain.

Claims

1. depression drainage device, comprise fluid reservoir (1), be arranged on the drainage tube (2) on fluid reservoir (1) and negative tube (3), the delivery pipe (11) of valve (12) is provided with in the bottom of fluid reservoir 1, described negative tube (3) connects negative pressure generator, it is characterized in that: described negative pressure generator comprises the coaxial rotary drum (4) arranged, rotatably be sleeved on the slip ring (5) on rotary drum (4), the upper axle center of described slip ring (5) is symmetrically arranged with upper water box (6) and lower header (7), described upper water box (6) and lower header (7) are by the backboard (61 be fixedly connected on slip ring (5) outer ring surface, 71) and be fastened on backboard (61, 71) housing in front is formed, negative pressure channel (41) and exhaust passage (42) are set in described rotary drum (4), described negative pressure channel (41) is communicated with negative tube (3), described negative pressure channel (41) is provided with the negative pressure channel interface being positioned at rotary drum (4) outer ring surface, described exhaust passage (42) is provided with the exhaust passage interface being positioned at rotary drum (4) outer ring surface, described negative pressure channel interface and exhaust passage interface are symmetrical arranged with the axle center of rotary drum (4), and be crisscross arranged at the axis direction of rotary drum (4), (5) are provided with in connection described slip ring, the aerofluxus through hole (52) of the negative pressure through hole (51) of outer ring surface and the inside and outside anchor ring of connection, negative pressure channel interface on the corresponding rotary drum (4) of inner port of described negative pressure through hole (51), exhaust passage interface on the corresponding rotary drum (4) of inner port of described aerofluxus through hole (52), described backboard (61, 71) backboard negative pressure channel (62 is provided with in, 72) and backboard exhaust passage (73), described backboard negative pressure channel (62, 72) along the radial distribution of rotary drum (4), corresponding negative pressure through hole (51) external port of inner port is communicated to the far-end of upper water box (6) or lower header (7), corresponding aerofluxus through hole (52) of inner port of described backboard exhaust passage (73), external port is communicated with the near-end of upper water box (6) or lower header (7), described upper water box (6) is communicated with proximally by connection tube (8) with lower header (7), described connection tube (8) is provided with flow control valve (81), described flow control valve (81) is mounted in the plunger valve in connection tube (8) passage.