JP3260314B2 - Medical suction liquid collector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical suction liquid collector, and more particularly to a suction liquid collector for discharging liquid and gas from a body cavity such as a chest.

[0002]

2. Description of the Related Art A low-pressure suction liquid collector for the chest is often used to maintain a constant internal pressure in the thoracic cavity after a thoracotomy, but as a method, a suction source having a constant suction pressure is used. A water-seal bottle that is used to connect to the chest, guides exhaust gas from the chest under the water surface, guides it to the exhaust passage, and detects gas discharge based on the generation of bubbles at that time, and also detects the degree of negative pressure generation on the chest side. As a medical suction liquid collecting device in which a bottle for storing drainage from the chest is combined into one unit, for example, a suction liquid collecting device as shown in FIG. 3 described in Japanese Utility Model Application Laid-Open No. 62-107843. Vessels have been proposed.

[0003] As a method of discharging the collected drainage at the time of disposal of these liquid collectors, the container is turned upside down and discharged from a body fluid inlet at the upper part of the liquid collecting part to a sewage sink. However, the inner diameter of the inflow port is often as small as about 10 mm, and is often implemented by adding an operation such as shaking the container hardly so that drainage hardly occurs.
The drainage may be scattered, and especially in the case of drainage from an infectious disease patient, which is a very dangerous operation for medical staff. In addition, in the case of a high-viscosity drainage, it cannot be completely drained, and there is an inherent danger to a medical waste disposal company.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems. The object of the present invention is to remove the body fluid inlet so that the outlet can be expanded, and even a high-viscosity drainage can be used. An object of the present invention is to provide a medical suction liquid collector that can easily perform a discharge operation.

[0005]

That is, the present invention provides an integrally molded container having a water seal section having a water seal chamber provided with a connection portion with a suction source at an upper portion thereof, and communicating with the water seal section in gas flow. A liquid collection unit having a liquid storage chamber provided with a body fluid inlet at the top, wherein the body fluid inlet at the top of the liquid collection unit is removable, and the caliber after removal is the same as before removal. It is a medical suction liquid collector characterized by being enlarged from the caliber of the medical suction device.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing one embodiment of a medical suction liquid collector according to the present invention, wherein (a) is an enlarged view of a portion A,
(B) is an enlarged sectional view of the part A. As shown in FIG. 1, the medical suction liquid collecting device of the present invention is composed of a water sealing portion (1) and a liquid collecting portion (11) that communicate with each other in gas flow at the upper part. The water seal part (1) is provided with a suction source connection part (5) connected to a suction source such as a suction pump for discharging gas at the upper part,
The interior of the room is divided by a partition (4) into a small tube (2) and a small room (3) communicating at the lower part.

Next, the liquid collecting section (11) will be described.
A bodily fluid inlet (12) connected to a connection tube to a drain, which is placed at the wound site of the patient, is provided at an upper portion, and a partition (18) is provided in the room to form a plurality of collecting chambers (17). ), And the scale of the drainage can be measured finely by the scale. However, there is no problem even if the partition (18) is not provided for small drainage for children and the like. Further, the upper body fluid inlet (12) installation section will be described in more detail with reference to FIGS. 1 (a) and 1 (b).
1) A discharge port (16) is integrally formed on the upper part, and a body fluid inlet (12) is detachably connected by screw fitting or the like.

Since it is important to secure airtightness by this connection, it is desirable that an elastic packing (13) is interposed therebetween, and the discharge port (16) is precision molded separately from the liquid collecting part (11). . In order to further enhance safety, a cover (14) using a heat-shrinkable tube or the like is attached to the body fluid inlet (1).
Covering the connection between 2) and the discharge port (16) is also one of the more desirable embodiments. In this case, the cut (15) is provided so that the cover (14) can be easily peeled off. The body fluid inlet (12) can be removed. The inner diameter of the outlet (16) is designed to be larger than the inner diameter of the body fluid inlet (12) and smaller than the thickness of the liquid collecting part (11),
It is preferably in the range of 20 to 40 mm , but is not necessarily limited by the balance between molding technology and component cost.

Another embodiment will be described with reference to FIG. 2. Referring to FIG. 2, a suction pressure setting section (21) communicating with the water sealing section (1) in gas flow is provided with a liquid collecting section (11). Installed on the other side. The suction pressure setting section (21) is composed of a small tube (22) whose upper part is open to the atmosphere and a small chamber (23) into which sterile water is charged and which communicates in a gas-liquid flow near the bottom surface. When there is no mechanism for adjusting the pressure, it serves to adjust the pressure of the sterile water (26) to the water column pressure of the height h. A positive pressure relief valve is provided above the suction pressure setting unit (21) for preventing aseptic water (26) from blowing out from the upper part of the thin tube (22) due to a positive pressure generated in the thoracic cavity due to a patient's cough or the like. (2
Installation of 5) is also one of the preferable embodiments.

Next, the method of use of the present invention will be described. Aseptic water (6) for preventing the backflow of air into the thoracic cavity of a patient is introduced into the bottom of the water seal section (1). ), The negative pressure of the suction source is maintained in the liquid collecting part (11), and a negative pressure is applied to the wound inside the patient via the connecting tube and the drain, and the liquid is drained into the liquid collecting part (11). Is stored. After the patient has healed, remove the drain and connecting tube, then peel off the cover (14) from the cut (15), remove the bodily fluid inlet (12), and drain the drainage from the drain (16) to a sewage sink or the like. .

[0011]

As described above, the medical suction / collecting device for medical use according to the present invention can easily discharge a highly viscous drainage without violently shaking the container. It is extremely useful as a safe tool without any danger.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a medical suction liquid collector according to an embodiment of the present invention, in which (a) is an enlarged view of an A section and (b) is an enlarged cross-sectional view of an A section.

FIG. 2 is a sectional view showing a medical suction / collecting device according to another embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a conventional medical suction liquid collector.

[Explanation of symbols]

1 Water seal section 11 Liquid collection section 21
Suction pressure setting unit 2 Thin tube 12 Body fluid inlet 22
Small tube 3 Small chamber 13 Packing 23
Small room 4 Partition wall 14 Cover 24
Partition wall 5 Suction source connection 15 Cut 25
Positive pressure relief valve 6 Sterile water 16 Outlet 26
Sterile water 17 Liquid collection chamber 18 Partition wall

Claims (1)

(57) [Claims] 1. A molded container, a water sealing portion having a water seal chamber having a connecting portion between the suction source at the top, through the water seal portion and the gas flow to communicate, fluid inlet at the top in the body fluid collecting liquid device comprising a liquid collecting portion having a liquid reservoir provided with, together with the liquid collection portion the upper part of the body fluid inlet is removable, diameter after removal expanded than removal before caliber 2
A medical suction liquid collector characterized by having a diameter of 0 to 40 mm .