CN104758986B - Separated type operation aspirator - Google Patents

Abstract

The invention relates to a separated type operation aspirator. The separated type operation aspirator comprises a negative pressure generation device, a separating tube and an absorption tube; an air draft end of the negative pressure generation device is mounted at one end of the separating tube and the other end of the separating tube is connected with the absorption tube; a rotating shaft is fixedly mounted on a middle axle wire of the separating tube; a wind wheel is sleeved on the rotating shaft in a rotating manner; a speed reducing blade capable of moving transversely along the radial direction of the separating tube is mounted on the separating tube; a barrel-shaped liquid absorbing cavity is formed in the tube wall of the separating tube between the wind wheel and the negative pressure generation device; liquid absorbing holes are formed in inner wall of the liquid absorbing cavity in circumferential direction; a liquid guide tube connected with the liquid absorbing cavity is connected with the outer wall of the liquid absorbing cavity at one side; the aspirator can separate the absorbed percolate and the air, and the service life can be effectively prolonged; the suction of the sucker can be conveniently adjusted and the operation time can be saved.

Description

Separate Surgical Aspirator

technical field

The invention relates to a medical device, in particular to an aspirator.

Background technique

Aspirator is widely used in surgery, it can suck out bleeding, exudate, pus, contents in chest viscera, etc. The vacuum pump creates a negative pressure at the port of the suction device, thereby realizing the absorption of the exudate; however, the absorbed exudate will enter the vacuum pump with the gas, causing pollution to the vacuum pump and affecting the normal operation of the equipment; in addition, at different stages of the operation The suction power of the required suction device is different. Changing the suction power by changing the suction head will seriously slow down the operation speed, consume the surgeon's physical strength, and increase the risk of the operation.

Contents of the invention

In view of the above problems, the present invention provides a separate surgical aspirator, which can separate the absorbed exudate and gas, effectively prolonging the service life; at the same time, it can conveniently adjust the suction force at the suction head, saving operation time.

In order to solve the above problems, the technical solution adopted in the present invention is: the separation type surgical aspirator includes a negative pressure generating device, a separation tube and an absorption tube; one end of the separation tube is installed on the suction end of the negative pressure generating device, and the other One end is connected to the absorption pipe; a rotating shaft is fixedly installed on the central axis of the separation pipe; a wind wheel is sleeved on the rotation shaft; Translational deceleration plate; the end of the deceleration plate protruding into the separation pipe is adhered with a friction plate, and the friction plate is facing the rotating seat of the wind wheel; the end of the deceleration plate protruding from the separation pipe is connected with a compression spring, The other end of the compression spring is fixed on the outer wall of the separation pipe; and the compression spring is sleeved on a section of the deceleration plate protruding from the separation pipe; a section between the wind wheel and the negative pressure generating device is The pipe wall of the separation tube is provided with a cylindrical liquid suction chamber; the inner wall of the liquid suction chamber is uniformly distributed with liquid suction holes in the circumferential direction, and the outer wall of the liquid suction chamber is connected with the liquid suction chamber. Connected catheter.

The beneficial effects of the present invention are: after the power is turned on, the negative pressure generating device generates negative pressure at the suction end, and the negative pressure makes the external air continuously enter from the absorption pipe; when the air flows through the separation pipe, it will drive the wind wheel to Rotating, the air rotates under the action of the wind wheel, so a high-speed rotating airflow is generated from the wind wheel to the pipe body at the suction end; when in use, the suction device makes the exudate flow in from the absorption pipe through the negative pressure, and the exudate When the liquid flows through the separation pipe, the wind wheel rotates at high speed to break up the exudate into small droplets, and the small droplets rotate with the airflow behind the wind wheel at high speed; due to the centrifugal force, the small droplets are separated along the The radial direction of the tube scatters to the tube wall, and the small droplets splashed on the tube wall enter the liquid suction chamber through the liquid suction hole, and finally are discharged from the catheter; this structure realizes the separation of exudate and gas, effectively preventing The exudate enters the negative pressure generating device along with the air flow, thereby avoiding the exudate from polluting the negative pressure generating device and effectively prolonging the service life of the present invention.

When it is necessary to fine-tune the suction force at the end of the absorbing tube, you only need to press the deceleration plate inward, and the friction plate on the deceleration plate will contact the rotating seat of the wind wheel to hinder the rotation of the wind wheel; according to fluid mechanics, the smaller the speed of the wind wheel, the faster Obstruct the air flow in the tube; therefore, the lower the speed of the wind wheel, the slower the flow rate in the tube, the smaller the negative pressure at the end of the absorbing tube, and therefore the smaller the suction; the suction of the absorbing tube can be fine-tuned by controlling the force of pressing the decelerator ;The structure is simple, the operation is convenient, and it can effectively prevent the capillaries at the surgical wound from breaking due to excessive suction while effectively removing the exudate; making the suction device safer and more convenient.

Preferably, a filter membrane is installed at the suction end; in order to further remove small liquid droplets in the airflow and ensure the cleanliness inside the negative pressure generating device.

Preferably, a purifier is installed at the exhaust end of the negative pressure generating device; in order to remove virus molecules in the airflow, and ensure the safety and sanitation of the gas discharged by the negative pressure generating device.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the separate surgical suction device.

Fig. 2 is a schematic diagram of the enlarged structure of the end surface of the separation tube in the embodiment shown in Fig. 1 .

detailed description

In the embodiment shown in Fig. 1, Fig. 2, this detachable surgical aspirator includes negative pressure generating device 1, separating pipe 2 and absorbing pipe 3; filter membrane, exhaust end 12 is equipped with a purifier; the negative pressure generating device 1 has a variety of structures, a common structure can be a vacuum pump; one end of the separation pipe 2 is installed on the suction end 11, and the other end is connected to The absorption pipe 3; a rotating shaft 21 is fixedly installed on the central axis of the separation pipe 2; a wind wheel 22 is sleeved on the rotating shaft 21; The deceleration plate 23 of the radial translation of the separation pipe 2; the end of the deceleration plate 23 extending into the separation pipe 2 is adhered with a friction plate, and the friction plate is facing the rotating seat 221 of the wind wheel 22; the deceleration plate 23 One end protruding from the separation pipe 2 is connected with a compression spring, and the other end of the compression spring is fixed on the outer wall of the separation pipe 2; Next, the deceleration plate 23 is kept out of contact with the rotating seat 221 under the action of the compression spring; in the pipe wall of the separation pipe 2 between the wind wheel 22 and the negative pressure generating device 1 A cylindrical liquid suction chamber 24 is provided; liquid suction holes are evenly distributed on the inner wall of the liquid suction chamber 24 in the circumferential direction, and the liquid suction holes are not shown in the figure; There is a catheter 4 communicating with the liquid suction cavity 24 .

After the power is turned on, the negative pressure generating device 1 makes the suction end 11 generate negative pressure, and the negative pressure makes the outside air continuously enter from the absorption pipe 3; when the air flows through the separation pipe 2, it will drive the wind wheel 22 to rotate at a high speed, The air rotates under the action of the wind wheel 22, so a high-speed rotating airflow is generated in the tube body from the wind wheel 22 to the suction end 11; when in use, the suction device makes the exudate flow from the absorption pipe 3 through negative pressure, When the exudate flows through the separation pipe 2, the wind wheel 22 rotates at a high speed to break up the exudate into small droplets, and the small droplets rotate at a high speed with the airflow behind the wind wheel 22; due to the centrifugal force , the small liquid droplets are scattered to the tube wall along the radial direction of the separation tube 2, and the small liquid droplets splashed on the tube wall enter the liquid suction chamber 24 through the liquid suction hole, and finally are discharged from the catheter tube 4; this structure realizes the infiltration The separation of liquid and gas can effectively prevent the exudate from entering the negative pressure generating device 1 with the air flow, and the filter membrane installed at the suction end 11 can further remove small liquid droplets in the air flow to ensure the cleanliness of the negative pressure generating device 1; Thereby, the exudate is avoided from contaminating the negative pressure generating device 1, effectively prolonging the service life of the present invention; at the same time, the purifier installed at the exhaust end 12 can remove virus molecules in the airflow, ensuring the safety of the gas discharged by the negative pressure generating device 1 ,health.

When it is necessary to fine-tune the suction at the end of the absorption pipe 3, it is only necessary to press the deceleration plate 23 inwardly, and the friction plate on the deceleration plate 23 contacts the rotating seat 221 of the wind wheel 22 to hinder the rotation of the wind wheel 22; according to fluid mechanics, The smaller the rotation speed of the wind wheel 22, the more it hinders the air flow in the pipe body; therefore, the lower the speed of the wind wheel 22, the slower the flow rate in the pipe body, the smaller the negative pressure at the end of the absorption pipe 3, and therefore the smaller the suction force; The strength of the sheet 23 can fine-tune the suction of the absorption tube 3; the structure is simple and the operation is convenient, and it can efficiently remove the exudate while effectively preventing the rupture of microvessels at the surgical wound due to excessive suction; making the suction device safer and more convenient.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (3)

1. a kind of divergence type operation suction apparatus, this divergence type operation suction apparatus include negative pressure generating device (1), separating pipe (2) With absorption tube (3)；Described separating pipe (2) one end is arranged on the air draught end (11) of negative pressure generating device (1), and the other end connects described Absorption tube (3)；It is characterized in that: rotating shaft (21) is installed with the axis of described separating pipe (2)；In described rotating shaft (21) upper rotation is arranged with wind wheel (22)；Being also equipped with described separating pipe (2) can be along described separating pipe (2) radial translation Deceleration blade (23)；One end that described deceleration blade (23) puts in separating pipe is stained with friction plate, and described friction plate is just to described wind wheel (22) rotation seat (221)；One end that described deceleration blade (23) stretches out separating pipe (2) is connected with stage clip, described stage clip another End is fixed on the outer wall of separating pipe (2)；And described compression spring sleeve stretches out on one section of separating pipe (2) located at deceleration blade (23)；? Offer in ring cylinder in the tube wall of one section between described wind wheel (22) and described negative pressure generating device (1) described separating pipe (2) The imbibition chamber (24) of shape；On the inwall of described imbibition chamber (24), circumference is evenly equipped with imbibing hole, outer in described imbibition chamber (24) On wall, side is connected to the catheter (4) connecting with imbibition chamber (24).

2. divergence type operation suction apparatus according to claim 1 it is characterised in that: be provided with described air draught end (11) Filter membrane.

3. divergence type operation suction apparatus according to claim 1 and 2 it is characterised in that: in described negative pressure generating device (1) Exhaust end (12) depurator is installed.