CN105194744B - A kind of fluid dynamic depression drainage device - Google Patents

Abstract

The present invention relates to a kind of medicine equipment, specifically a kind of fluid dynamic depression drainage device.Drainage tube and negative tube including fluid reservoir, on fluid reservoir, the negative tube connects negative pressure generator, negative pressure generator includes the rotary drum being coaxially disposed, the slip ring being rotatably sleeved on rotary drum, axle center, which is symmetrically arranged with upper water box and lower header, rotary drum, on the slip ring sets negative pressure channel and exhaust passage；It is correspondingly arranged on slip ring in negative pressure through hole and exhaust through hole, upper water box and lower header and is correspondingly arranged on backboard negative pressure channel and backboard exhaust passage.The depression drainage device is driven using liquid gravity, and without electric energy, negative pressure duration length, pressure stability, reliability are high.

Description

A kind of fluid dynamic depression drainage device

Technical field

The present invention relates to a kind of medicine equipment, specifically a kind of fluid dynamic depression drainage device.

Background technology

For a variety of postoperative patients, the liquid body exudate of wound surface is drawn external or passed through by conventional negative pressure drainage Negative compression minor cut or wound surface of a wound lacuna, is conducive to the healing of wound tissue.This negative pressure drainage requires negative pressure duration length, pressure It is stably and controllable.The operation principle of existing depression drainage device can be divided into two kinds according to power resources, and one kind is to use manually driven The piston tubular type negative pressure generator of negative pressure drainage ball or syringe-like, another born using motor-driven pressure pump type Press generator.The manually driven negative pressure generator duration is short, pressure transient, poor reliability, and due to negative pressure cavity with Liquid storage cylinder uses same container, it is impossible to continuous to use and easily occur cross-infection；The pressure pump type negative pressure generator duration Long, negative pressure cavity and the liquid storage cylinder container that to be respectively adopted two different have prevented the danger of cross-infection, but still suffer from pressure instability Calmly, the problem of poor reliability, once compression pump, which breaks down, will influence the normal work of flow diverter.

The content of the invention

It is negative it is an object of the invention to provide the high fluid dynamic of a kind of negative pressure duration length, pressure stability, reliability Press flow diverter.

In order to reach object above, the technical solution adopted in the present invention is：The fluid dynamic depression drainage device includes storage Flow container, drainage tube and negative tube on fluid reservoir, the negative tube connect negative pressure generator, the negative pressure generator bag Include axle center on the rotary drum being coaxially disposed, the slip ring being rotatably sleeved on rotary drum, the slip ring be symmetrically arranged with upper water box and Lower header, the upper water box and lower header are by the backboard being fixedly connected on slip ring outer ring surface and are fastened on the positive shell of backboard Body is constituted, and negative pressure channel and exhaust passage are set in the rotary drum, and the negative pressure channel connects negative tube, and the negative pressure channel is set There is the negative pressure channel interface positioned at rotary drum outer ring surface, the exhaust passage is provided with the exhaust passage interface positioned at rotary drum outer ring surface, The negative pressure channel interface and exhaust passage interface are symmetrical arranged with the axle center of rotary drum and interlock and set in the axis direction of rotary drum Put；The negative pressure through hole for connecting inside and outside anchor ring and the inside and outside anchor ring exhaust through hole of connection are provided with the slip ring, it is described negative Press the row on the negative pressure channel interface on the inner port correspondence rotary drum of through hole, the inner port correspondence rotary drum of the exhaust through hole It is provided with backboard negative pressure channel and backboard exhaust passage in gas channel interface, the backboard, the backboard negative pressure channel is along rotary drum Radial distribution, inner port correspondence negative pressure through hole external port be communicated to the distal end of upper water box or lower header, the backboard row The inner port correspondence exhaust through hole of gas passage, external port connect the near-end of upper water box or lower header；The upper water box is with Water tank is connected proximally by connecting tube.

The beneficial effects of the present invention are：The depression drainage device is driven using liquid gravity, without electric energy, when negative pressure continues Between long, pressure stability, reliability it is high.

Brief description of the drawings

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

Fig. 2 is the positive structure schematic of negative pressure generator.

Embodiment

As shown in Figure 1 and Figure 2, a kind of fluid dynamic depression drainage device of the present invention, including fluid reservoir 1, installed in liquid storage Drainage tube 2 and negative tube 3 on tank 1, fluid reservoir 1 are used to deposit draining fluids, use for convenience, can also be in fluid reservoir 1 Bottom is provided with the delivery pipe 11 of valve.The negative tube 3 connects negative pressure generator, and negative pressure generator generation negative pressure passes through negative Pressure pipe 3 and drainage tube 2 act on the puncture needle for being connected to the front end of drainage tube 2, and liquid body exudate is drawn out in fluid reservoir 1.

The negative pressure generator includes the rotary drum 4 being coaxially disposed, the slip ring 5 being rotatably sleeved on rotary drum 4, described turn Drum 4 has columned outer ring surface and is fitted close by the inner ring surface of the outer ring surface and slip ring 5, and slip ring 5 can be on rotary drum 4 Rotate.Axle center is symmetrically arranged with upper water box 6 and lower header 7 on the slip ring 5, and the upper water box 6 and lower header 7 connect by fixed The backboard 61,71 that is connected on the outer ring surface of slip ring 5 and it is fastened on backboard 61,71 positive housings and constitutes, upper water box 6 and lower header 7 All it is that, along the radially-arranged strip structure of rotary drum 4 or spindle-type α-Fe2O3, its height is much larger than width.

Negative pressure channel 41 and exhaust passage 42 are set in the rotary drum 4, and the negative pressure channel 41 connects negative tube 3, described Negative pressure channel 41 is provided with the negative pressure channel interface positioned at the outer ring surface of rotary drum 4, and the exhaust passage 42, which is provided with, is located at the outer ring surface of rotary drum 4 Exhaust passage interface, be additionally provided with rotary drum 4 connection exhaust passage 42 open interface, with atmosphere.The negative pressure Channel interface and exhaust passage interface are symmetrical arranged with the axle center of rotary drum 4 and are staggered in the axis direction of rotary drum 4, are turned Under the stationary state of drum 4, negative pressure channel interface upward opening, exhaust passage interface are downwardly open；Connection is provided with the slip ring 5 The negative pressure through hole 51 of inside and outside anchor ring and the inside and outside anchor ring exhaust through hole 52 of connection, the inner port of the negative pressure through hole 51 Exhaust passage interface on negative pressure channel interface on correspondence rotary drum 4, the inner port correspondence rotary drum 4 of the exhaust through hole 52, Because negative pressure channel interface and exhaust passage interface are symmetrical arranged with the axle center of rotary drum 4, on slip ring 5, with the axle center pair of rotary drum 4 Claim position that one group of negative pressure through hole 51 and exhaust through hole 52 are respectively set.When the rotation of slip ring 5 makes the negative pressure through hole 51 of upper end just When to negative pressure channel interface, the exhaust through hole 52 of lower end also just connects exhaust passage interface.

Backboard negative pressure channel 62,72 and backboard exhaust passage 73 are provided with the backboard 61,71, the backboard negative pressure is led to Radial distribution, inner port correspondence negative pressure through hole 51 external port of the road 62,72 along rotary drum 4 are communicated to upper water box 6 or lower header 7 Distal end, inner port correspondence exhaust through hole 52, the external port connection upper water box 6 or lower header of the backboard exhaust passage 73 7 near-end；The setting of backboard negative pressure channel 62,72 and backboard exhaust passage 73 in two backboards is also with the axle center of rotary drum 4 It is symmetrical arranged.When upper water box 6 rotates to top with slip ring 5, the backboard negative pressure channel 62 on upper water box 6 passes through slip ring 5 Backboard exhaust passage 73 on the connection negative pressure channel interface of negative pressure through hole 51 and negative pressure channel 41 of upper end, upper water box 6 is turned The outer shroud face closure of drum 4；At the same time, the backboard negative pressure channel 72 that lower header 7 is located on the lower section of rotary drum 4, lower header 7 is turned The logical exhaust of the connection of negative pressure through hole 52 that backboard exhaust passage on the outer shroud face closure of drum 4, lower header 7 passes through the lower end of slip ring 5 Channel interface and exhaust passage 42.Slip ring 5 is rotated into 180 degree, then can be by upper water box 6 and the location swap of lower header 7.

The upper water box 6 is connected with lower header 7 proximally by connecting tube 8.

Upper water box 6 forms two liquid containers connected, when upper water box 6 fills the liquid such as water, water etc. with lower header 7 Liquid can be gradually flowed in lower header 7 by connecting tube 8, and the air in lower header 7 is discharged by exhaust passage 42, upper water box 6 In liquid reduce after, produce negative pressure in negative pressure channel 41, fluid reservoir 1 acted on by negative tube 3；In upper water box 6 After emptying rate of liquid, as long as slip ring 5 to be rotated to the transposition of 180 degree, upper water box 6 and lower header 7, you can continue to produce and bear Pressure.

Claims (1)

1. a kind of fluid dynamic depression drainage device, including fluid reservoir（1）, installed in fluid reservoir（1）On drainage tube（2）And negative pressure Pipe（3）, the negative tube（3）Connect negative pressure generator, it is characterised in that：The negative pressure generator includes the rotary drum being coaxially disposed （4）, be rotatably sleeved on rotary drum（4）On slip ring（5）, the slip ring（5）Upper axle center is symmetrically arranged with upper water box（6）With under Water tank（7）, the upper water box（6）And lower header（7）By being fixedly connected on slip ring（5）Backboard on outer ring surface（61、71）With It is fastened on backboard（61、71）Positive housing is constituted, the rotary drum（4）Middle setting negative pressure channel（41）And exhaust passage（42）, The negative pressure channel（41）Connect negative tube（3）, the negative pressure channel（41）Provided with positioned at rotary drum（4）The negative pressure channel of outer ring surface Interface, the exhaust passage（42）Provided with positioned at rotary drum（4）The exhaust passage interface of outer ring surface, the negative pressure channel interface and row Gas channel interface is with rotary drum（4）Axle center be symmetrical arranged and in rotary drum（4）Axis direction be staggered；The slip ring（5） On be provided with the negative pressure through hole for connecting inside and outside anchor ring（51）And the inside and outside anchor ring exhaust through hole of connection（52）, the negative pressure Through hole（51）Inner port correspondence rotary drum（4）On negative pressure channel interface, the exhaust through hole（52）Inner port correspondence Rotary drum（4）On exhaust passage interface, the backboard（61、71）In be provided with backboard negative pressure channel（62、72）With backboard exhaust Passage（73）, the backboard negative pressure channel（62、72）Along rotary drum（4）Radial distribution, inner port correspondence negative pressure through hole（51） External port is communicated to upper water box（6）Or lower header（7）Distal end, the backboard exhaust passage（73）Inner port correspondence be vented Through hole（52）, external port connection upper water box（6）Or lower header（7）Near-end；The upper water box（6）And lower header（7）'s Proximally by connecting tube（8）Connection.