CN109331258B

CN109331258B - Thoracic cavity closed drainage device for respiratory nursing department

Info

Publication number: CN109331258B
Application number: CN201811364584.5A
Authority: CN
Inventors: 徐敏利; 林杨; 王国力
Original assignee: Jiamusi University
Current assignee: Jiamusi University
Priority date: 2018-11-16
Filing date: 2018-11-16
Publication date: 2021-02-19
Anticipated expiration: 2038-11-16
Also published as: CN109331258A

Abstract

The invention discloses a thoracic cavity closed drainage device for a respiratory and nursing department, which comprises: the container is used for containing effusion in the thoracic cavity; a vacuum pump for forming a certain vacuum degree in the container by vacuum pumping; a catheter having one end extending into the receptacle and the other end extending into the chest cavity to direct the effusion into the receptacle; and a pressure coordination mechanism for compensating the pressure in the container so as to reduce the degree of decrease of the negative pressure when the patient performs an inhalation operation. When the patient breathes in the action, the volume increase of thorax for when the negative pressure degree increase trend that has in the thorax, pressure coordination mechanism is through to accomodating interior supplementary pressure of ware, and then for the intrathoracic supplementary pressure, make the degree of change of the negative pressure degree of thorax little, perhaps the increase diminishes, and then prevents at the drainage initial stage that the lung appears the excessive expansion when breathing in.

Description

Thoracic cavity closed drainage device for respiratory nursing department

Technical Field

The invention relates to the technical field of medical instruments, in particular to a drainage device for thoracic cavity drainage.

Background

As a medical term, the thoracic cavity is the cavity between the lungs and the rib cage. When the pleural cavity has effusion due to some reasons, the effusion needs to be drained, and the process of draining the effusion is called drainage.

The drainage device in the prior art comprises a liquid container, a vacuum pump for vacuumizing the container and a catheter, wherein one end of the catheter is communicated with the container, and the other end of the catheter extends into the thoracic cavity. Under the action of vacuum pumping, negative pressure is formed in the container, and then effusion in the thoracic cavity is guided to flow into the container through the guide pipe.

It should be noted that: no matter the people is in breathing in or exhales the state, the thorax all is the negative pressure state, when the people breathes in, under the cerebral domination, the rib at first expands for when the people breathes in, the negative pressure degree of thorax increases, and when the people exhales, the rib at first contracts, makes the rib negative pressure degree reduce.

The above drainage device has the following disadvantages:

the vacuum pump makes the negative pressure in the container make the negative pressure in the thorax and the unanimity in the container by virtue of the pipe, and when the patient breathed in, the thorax increased for the negative pressure in the thorax and the reduction of container uniformity, this makes the lung can appear excessive expansion, brings danger for the patient.

By pulmonary hyper-dilation is understood: the patient's lung should be expanded less than the normal one during the operation, and the allowable expansion degree during this stage is over-expanded, and when the patient is in the later stage of the drainage, the allowable expansion degree can be increased to the normal one, that is, the allowable expansion degree is over-expanded during the initial stage of the drainage.

Disclosure of Invention

In order to solve the technical problems in the prior art, the embodiment of the invention provides a thoracic closed drainage device for a respiratory and nursing department.

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:

a closed thoracic drainage device for respiratory care departments, comprising:

the container is used for containing effusion in the thoracic cavity;

a vacuum pump for forming a certain vacuum degree in the container by vacuum pumping;

a catheter having one end extending into the receptacle and the other end extending into the chest cavity to direct the effusion into the receptacle;

and a pressure coordination mechanism for compensating the pressure in the container so as to reduce the degree of decrease of the negative pressure when the patient performs an inhalation operation.

Preferably, the pressure coordination mechanism comprises:

a cylinder communicating with the container;

a piston provided to the cylinder; wherein:

when the patient inhales to increase the volume of the thoracic cavity, the piston decreases toward the inner cavity in the cylinder communicating with the receiver to compensate for the increase in the volume of the thoracic cavity.

Preferably, the pressure-coordinating mechanism further includes a damping applying mechanism for applying a force to the piston in a direction in which an inner chamber of a cylinder communicating with the receiver is enlarged.

Preferably, the damping applying mechanism includes:

the first annular magnet is formed by circumferentially butting a plurality of fan-shaped magnetic sections, and the polarities of the two adjacent fan-shaped magnetic sections on the same axial side are different;

the second annular magnet is formed by circumferentially butting a plurality of fan-shaped magnetic ends, and the polarities of the two adjacent fan-shaped magnetic sections on the same axial side are different;

the first annular magnet is arranged on the piston, the second annular magnet is axially opposite to the first annular magnet, and the second annular magnet can rotate relative to the first annular magnet.

Preferably, the receiver has a connection pipe on which a first flange frame is formed;

the pressure coordination mechanism further comprises a butt joint pipe, and a second flange frame used for being in butt joint with the first flange frame is arranged on the butt joint pipe;

a sleeve body is sleeved on the second annular magnet, and two ends of the second annular magnet extend into the butt joint pipe and the connecting pipe, so that the sleeve body circumferentially protrudes out of the butt joint pipe and the connecting pipe;

the cylinder is connected to the interface tube.

Compared with the prior art, the closed thoracic drainage device for the respiratory and nursing department disclosed by the invention has the beneficial effects that: when the patient breathes in the action, the volume increase of thorax for when the negative pressure degree increase trend that has in the thorax, pressure coordination mechanism is through to accomodating interior supplementary pressure of ware, and then for the intrathoracic supplementary pressure, make the degree of change of the negative pressure degree of thorax little, perhaps the increase diminishes, and then prevents at the drainage initial stage that the lung appears the excessive expansion when breathing in.

Drawings

Fig. 1 is a schematic structural diagram (in an expiratory state) of a closed thoracic drainage device in a respiratory care department according to an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion a of fig. 1.

Fig. 3 is a schematic structural diagram (in an inhalation state) of a closed thoracic drainage device in a respiratory care department according to an embodiment of the invention.

Fig. 4 is an enlarged view of a portion B of fig. 3.

In the figure:

10-a receptacle; 11-a connecting tube; 111-a first flange mount; 20-a vacuum pump; 30-a pressure coordination mechanism; 31-cylinder body; 311-lumen; 32-a piston; 33-a first ring magnet; 34-a second ring magnet; 35-butt joint pipe; 351-a second flange frame; 40-a catheter; 100-chest cavity; 101-lung.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4, an embodiment of the present invention discloses a closed drainage device for a thoracic cavity 100 of a respiratory nursing department, comprising: a receiver 10, a vacuum pump 20, a conduit 40, and a pressure coordination mechanism 30. The container 10 is used for containing effusion in the chest cavity 100; the vacuum pump 20 is used for forming a certain vacuum degree in the container 10 through vacuum pumping; one end of the catheter 40 extends into the receptacle 10 and the other end thereof extends into the chest cavity 100 to guide the effusion into the receptacle 10; the pressure-coordinating mechanism 30 compensates the pressure in the container 10 to reduce the degree of decrease in the negative pressure when the patient performs the inhalation operation.

As can be seen from the above, as shown in fig. 3 and 4, when the patient performs the inhalation operation, the volume of the thoracic cavity 100 increases, so that the degree of negative pressure in the thoracic cavity 100 tends to increase, and the pressure coordinating mechanism 30 supplements the pressure in the container 10, thereby supplementing the pressure in the thoracic cavity 100, so that the degree of change in the degree of negative pressure in the thoracic cavity 100 is not large or the degree of increase becomes small, thereby preventing the lung 101 from being excessively expanded during the inhalation operation at the initial stage of the drainage.

In a preferred embodiment of the present invention, as shown in fig. 2 and 4, the pressure coordination mechanism 30 comprises: a cylinder 31 and a piston 32. The cylinder 31 communicates with the container 10; the piston 32 is provided in the cylinder 31; wherein: when the patient performs an inhalation operation to increase the volume of the thoracic cavity 100, the piston 32 decreases the inner cavity 311 in the cylinder 31 of the communicating container 10 to compensate for the increase in the volume of the thoracic cavity 100.

The advantages of the above embodiment are:

when the patient inhales chest 100 volume and increases, because inner chamber 311 and storage device 10 and chest 100 in the cylinder 31 link up, the negative pressure degree increase trend in chest 100 can make piston 32 remove towards storage device 10 direction, and then makes the volume of totality can not have great change, and then prevents the negative pressure degree increase.

By total volume is understood: the total of the thoracic cavity 100, the container 10 and the inner cavity 311 in the cylinder 31 communicated with the container 10, the volume of the thoracic cavity 100 is increased, and the volume of the inner cavity 311 is decreased to compensate for the increased volume of the thoracic cavity 100, so that the total volume is almost unchanged, and the change of the negative pressure degree is very small.

In a preferred embodiment of the present invention, the pressure-coordinating mechanism 30 further includes a damping applying mechanism for applying a force to the piston 32 in a direction to increase the inner chamber 311 of the cylinder 31 communicating with the container 10. In this embodiment, when the volume of the chest cavity 100 is increased, the moving speed of the piston 32 is slowed down due to the additional damping mechanism, that is, when the volume of the chest cavity 100 is increased, the piston 32 has hysteresis to compensate the volume, so that when the patient inhales, the negative pressure degree of the chest cavity 100 is increased to some extent, but the lung 101 is not excessively expanded, and therefore, the expansion degree of the lung 101 is limited to some extent, and the lung 101 is also expanded to some extent.

In one preferred embodiment of the present invention, the damping applying mechanism includes: a first ring magnet 33 and a second ring magnet 34. The first annular magnet 33 is formed by circumferentially butting a plurality of fan-shaped magnetic sections, and the polarities of the two adjacent fan-shaped magnetic sections on the same axial side are different; the second annular magnet 34 is formed by circumferentially butting a plurality of fan-shaped magnetic ends, and the polarities of the two adjacent fan-shaped magnetic sections on the same axial side are different; the first ring magnet is disposed on the piston 32, the second ring magnet 34 is axially opposite to the first ring magnet 33, and the second ring magnet 34 is rotatable relative to the first ring magnet 33. In this embodiment, the magnetic repulsion between the two magnets can be varied by rotating the second ring magnet 34, thereby varying the damping of the movement of the piston 32.

The advantages of the above embodiment are:

from the beginning to the end of the drainage, the expansion capacity of the lung 101 needs to be gradually improved, at the beginning of the drainage, the second ring magnet 34 is rotated, so that the magnetic force of the two ring magnets is reduced, thus, according to the above, the damping of the piston 32 is smaller, so that the expansion degree of the lung 101 during inspiration is smaller, and along with the progress of the drainage, the magnetic repulsion force of the two ring magnets can be continuously increased by continuously rotating the second ring magnet 34, further the damping of the piston 32 is continuously increased, so that the hysteresis of the compensation volume of the piston 32 is prolonged, and the compensation capacity is continuously reduced, so when the lung 101 inhales, the negative pressure degree in the chest 100 is increased, further the expansion degree of the lung 101 is increased until the expansion capacity of a normal person is recovered.

The magnetic force action is changed in a twisting mode, so that the expansion capacity of the lung 101 is gradually changed, and the expansion capacity of the lung 101 is gradually restored to be normal.

In a preferred embodiment of the present invention, the receiver 10 has a connection pipe 11, and a first flange frame 111 is formed on the connection pipe 11; the pressure coordination mechanism 30 further comprises a butt joint pipe 35, and a second flange frame 351 for butt joint with the first flange frame 111 is arranged on the butt joint pipe 35; the second annular magnet 34 is sleeved with a sleeve body, and two ends of the second annular magnet 34 extend into the butt-joint pipe 35 and the connecting pipe 11, so that the cylinder body 31 of the sleeve body circumferentially protrudes out of the butt-joint pipe 35 and the connecting pipe 11 and is connected to the butt-joint pipe 35. In this embodiment, the second ring magnet 34 can be rotated by rotating the sleeve body.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. The utility model provides a respiratory nursing branch of academic or vocational study thorax closed drainage device which characterized in that includes:

the container is used for containing effusion in the thoracic cavity;

a pressure coordination mechanism for compensating pressure in the container to reduce a degree of decrease in negative pressure when a patient performs an inhalation operation;

the pressure coordination mechanism includes:

a cylinder communicating with the container;

a piston provided to the cylinder; wherein:

when the patient inhales to increase the volume of the thoracic cavity, the piston decreases towards an inner cavity in the cylinder body communicated with the container so as to compensate the increase of the volume of the thoracic cavity;

the pressure coordination mechanism further comprises a damping application mechanism for applying force to the piston in a direction in which an inner cavity of a cylinder communicating with the container is enlarged;

the damping applying mechanism includes:

2. The closed thoracic drainage device of claim 1, wherein the receptacle has a connection tube, the connection tube having a first flange formed thereon;

the cylinder is connected to the interface tube.