WO2009030118A1

WO2009030118A1 - Medical negative pressure drainage using disposable collecting bag

Info

Publication number: WO2009030118A1
Application number: PCT/CN2008/070107
Authority: WO
Inventors: Xing Zhou; Taili Zhou
Original assignee: Xing Zhou; Taili Zhou
Priority date: 2007-09-07
Filing date: 2008-01-15
Publication date: 2009-03-12
Also published as: CN101121056A

Abstract

A medical negative pressure drainage using a disposable collecting bag, includes: a collecting bag (1) with an accommodating space (10) therein; a rigid container (2); a seal collar (3); a top lid (4); a sucking nozzle (5), arranged on the top lid (4), and connected to the accommodating space (10) of the collecting bag; an air-pumping nozzle (6) in the collecting bag, arranged on the top lid (4) and connected to the accommodating space (10) of the collecting bag; a collecting bag spreading nozzle (7), arranged on the top lid (4) or the rigid container (2); a connecting pipe (8); and a negative pressure source (9). The collecting bag (1) is set in the rigid container (2), forming an airtight space (11) with the top lid (4), the seal collar (3) and the open end (21) of the rigid container. The connecting bag spreading nozzle (7) is connected to the airtight space (11). The air-pumping nozzle (6) in the collecting bag and the collecting bag spreading nozzle (7) are connected to the negative pressure source (9) through the connecting pipe (8).

Description

Medical vacuum suction device using disposable collection bag

Technical field

The present invention relates to a medical suction device, in particular the use of disposable medical collecting bag ^Σ means of suction, including medical sewage suction, a suction machine, gastric lavage, flow machine, vaginal washing machines relates to Medical device for vacuum suction device.

Background technique

Hospital surgery usually collects medical sewage or human metabolites such as blood, pus, rinse, and sputum through a negative pressure source. The most common method in the prior art is to use a negative pressure source to carry these The bacteria and virus liquids are drawn into a rigid container, then poured into a specialized medical sewage collection tank, transported to a medical wastewater treatment center for processing, and rigid containers are reused after cleaning and disinfection.

[3] Taking the electric suction machine as an example (refer to Figure 1), the rigid container ready to hold the liquid is sealed by the upper cover, that is, the buckle is fastened. Then insert the suction tube into the water inlet of the upper cover of the rigid container; insert one end of the suction tube into the air outlet of the upper cover of the rigid container, and the other end is connected to the negative pressure source through the air filter. After the power is turned on, the mechanical pump switch is turned on, and the mechanical pump starts to operate, and as a negative pressure source, a negative pressure is generated. The suction tube draws the rigid container into a negative pressure so that the suction tube can be sucked into the throat or lungs. The sucked sputum flows into the rigid container. After sucking, the sputum is poured into the hospital's medical sewage treatment station for treatment; or it is poured into a special medical sewage collection tank and transported to the medical sewage treatment center for processing, and the rigid container Then reuse after washing and disinfecting.

[4] Obviously, in the above process, the medical staff should handle the sputum collected in the rigid container and clean the rigid container, directly contacting the contaminated rigid container, which may easily lead to contamination of the medical staff. In other cases, medical personnel have to deal with a wide variety of medical sewage, which contains a large number of bacteria and pathogens, especially high-risk medical sewage containing highly pathogenic bacteria and pathogens. There is a lack of a way to prevent medical personnel from directly contacting vessels contaminated by medical sewage, safe, effective, and quick and easy to collect medical sewage.

Disclosure of invention

technical problem [5] The object of the present invention is to provide a medical vacuum suction device capable of using a disposable collection bag, which has the advantages of preventing medical personnel from directly contacting the vessel contaminated by medical sewage, and can collect medical care safely, effectively, simply and quickly. Sewage, easy to transport and prevent iatrogenic pollution.

Technical solution

[6] The medical vacuum suction device using the disposable collection bag according to the present invention comprises: a collection bag having a container space therein; a rigid container; a sealing port; an upper cover; a suction port, mounted on the upper cover Connecting to the nano-space of the collection bag; collecting an air extraction interface in the bag, being mounted on the upper cover, and connected to the nano-space of the collection bag; collecting the bag deployment interface, mounted on the a cover or a rigid container; a connecting tube; and a source of negative pressure; wherein the collecting bag is mounted in the rigid container, forming a closed space through the upper end, the sealing cymbal and the open end of the rigid container, the collecting bag unfolding interface and the sealing The space is connected; the suction port in the collecting bag and the collecting bag expansion interface are connected to the negative pressure source through the connecting pipe.

[7] Further, the open end of the collecting bag is fixed on the upper cover by a fixing ring, and the inside of the collecting bag forms a sealing structure with the upper cover; and the suction interface and the suction port in the collecting bag are installed at The upper cover is connected to the object space; the collecting bag sealed on the upper cover and the upper cover provided with the suction port and the air suction port can be manufactured as one part, which is convenient for one-time replacement. The outer portion of the collection bag forms a closed space with the upper cover, the sealing jaw, and the open end of the rigid container; the collection bag deployment interface is mounted on the rigid container and connected to the confined space. The confined space forms a negative pressure space after the collection bag deployment interface is connected with the negative pressure source. Since the pressure of the confined space is lower than the pressure of the nano-space, the flexible collection bag can be deployed to facilitate the collection bag to inhale the medical sewage.

[8] Another structure is: the open end of the collecting bag is fixed on the upper cover by a fixing ring, the inner part of the collecting bag and the upper cover form a sealing space of the sealing structure; and the suction port and the collecting bag are evacuated The interface is mounted on the upper cover and connected to the nano-space; the collection bag is installed in the rigid container, and the outer part of the collection bag forms a closed space with the upper cover, the sealing cymbal and the open end of the rigid container; the collecting bag unfolding interface is mounted on the upper cover Connected to this confined space. Here, the upper cover is provided with three interfaces of a suction port, a suction port in the collection bag, and a collection bag deployment interface; the suction port, the suction port in the collection bag are connected with the object space, and the collection bag deployment interface and the confined space When connected, when the suction port of the collecting bag and the collecting bag deployment interface are connected with the negative pressure source, the pressure of the closed space is lower than the pressure of the nano space, and the collecting bag is kept unfolded, so that the collecting bag can suck the liquid substance. The suction port, the suction port in the collection bag, and the collection bag are unfolded The advantage of having three interfaces on the top cover is that there is no need to open a collection bag deployment interface on the rigid container. The upper cover with the suction interface, the suction port in the collection bag and the three interfaces of the collection bag deployment interface and the collection bag sealed and fixed on the upper cover can be manufactured as one part, which is convenient for one-time replacement.

A lock for reinforcing the seal is provided between the upper cover and the open end of the rigid container for convenient installation and replacement of the disposable collection bag.

The air extraction interface and the collection bag deployment interface of the collection bag are connected to the tee through the connection pipe, and then connected to the negative pressure source. The use of the three-way not only saves the connecting pipe, but also makes the structure simpler.

The air extraction interface and the collection bag deployment interface of the collection bag are first connected to the air filter through the connection pipe, and then connected to the negative pressure source. The purpose of adding an air filter is to protect the source of negative pressure from contamination.

The collection bag contains a water absorbing material. The water absorbing material can absorb liquid and facilitate the transportation of medical sewage. An anti-liquid overflow device is arranged at the air suction interface in the collection bag. The liquid-repellent-proof device can automatically close the suction port in the collection bag when the liquid level in the collection bag is too high, to prevent the liquid from being excessively inhaled, resulting in overflow. The suction port and the suction port in the collection bag are provided with a sealing cover. The sealing cap closes the suction port and the suction port in the collecting bag prevents liquid from spilling and is convenient for transportation.

A switch is arranged on the suction interface, the air suction interface in the collection bag, the connection tube, and the deployment bag deployment interface. When the suction port and the suction port in the collection bag are equipped with a switch 吋, the direct closing switch can prevent the liquid in the collection bag from overflowing and is convenient for transportation.

Beneficial effect

The medical vacuum suction device using the disposable collection bag of the invention comprises a collection bag, a rigid container, a sealing raft, an upper cover, a suction interface, a suction interface in the collection bag, a collection bag deployment interface, a connecting tube and a negative pressure source. The suction port and the suction port in the collection bag are mounted on the upper cover and connected to the inner space of the collection bag; the collection bag is installed in the rigid container, and is sealed by the upper cover, the sealing jaw and the open end of the rigid container; Space, the collection bag deployment interface is mounted on the upper cover or the rigid container and connected to the confined space; the suction port in the collection bag and the collection bag deployment interface are connected to the negative pressure source through the connection pipe. Since the pressure in the confined space is lower than the pressure in the nano-space, the flexible collection bag can be automatically deployed to facilitate the contents. The disposable collecting bag which overcomes the manufacture of the plastic film is disadvantageous in that it is difficult to attract the liquid by the negative pressure due to insufficient rigidity, and the cost is low. It has excellent equipment that does not allow medical personnel to directly contact the sewage contaminated by medical sewage. Point, it is safe, effective, simple and quick to collect medical sewage, convenient transportation, and fundamentally prevent iatrogenic pollution.

DRAWINGS

[17]

[18] FIG. 1 is a schematic structural view of a prior art medical vacuum suction device.

2 is a schematic structural view of a medical vacuum suction device using a disposable collection bag according to the present invention.

Fig. 3 is a schematic view showing the structure of a medical vacuum suction device using a disposable collection bag of the present invention in which a disposable collection bag is mounted on an upper cover.

[21] Fig. 4 is a schematic view showing the structure of a medical vacuum suction device using the disposable collection bag of the present invention in which the disposable collection bag and the collection bag deployment interface are both mounted on the upper cover.

Fig. 5 is a schematic view showing the structure of a medical vacuum suction device using the disposable collection bag of the present invention after the lock is added to Fig. 4; Increasing the lock can increase the tightness of the upper cover and the rigid container.

Fig. 6 is a schematic view showing the structure of a medical vacuum suction device I using a disposable collection bag of the present invention after the addition of the tee to Fig. 5. The addition of a three-way simplifies the connection to the negative pressure source.

Fig. 7 is a schematic view showing the structure of a medical vacuum suction device using a disposable collection bag of the present invention after the air filter is added to Fig. 6. Adding an air filter protects the negative pressure source from contamination.

Fig. 8 is a schematic view showing the structure of a medical vacuum suction device using a disposable collection bag of the present invention after the liquid overflow prevention device is added to Fig. 7. The addition of a liquid-repellent device prevents the liquid from being drawn to the negative pressure source and protects the negative pressure source from contamination.

Figure 9 is a schematic view showing the structure of a medical vacuum suction device using a disposable collection bag of the present invention after the pipe switch is added based on Figure 8. Adding a switch prevents accidental spillage of medical waste.

Figure 10 is a schematic view showing the structure of a medical vacuum suction device of the present invention using a disposable collection bag after a suction cap is provided on the suction port and the suction port in the collection bag.

[28] FIG. 11 is a top cover and disposable collection bag of the medical vacuum suction device of the present invention using the disposable collection bag after sealing the suction port and the suction port in the collection bag with the sealing cover after collecting the medical sewage in FIG. Schematic.

12 is a schematic structural view of an upper cover and a disposable collection bag of a medical vacuum suction device using a disposable collection bag of the present invention in which a water absorbing material is built in the disposable collection bag of FIG. [30] FIG. 13 is a top cover and disposable collection bag of the medical vacuum suction device of the present invention using the disposable collection bag after sealing the suction port and the suction port in the collection bag with the sealing cover after collecting the medical sewage in FIG. Schematic. The water absorbing material expands and swells into a colloid in the disposable collecting bag, and does not easily flow, thereby facilitating transportation.

[31] In the above picture: 1 is the collection bag, 2 is the rigid container, 3 is the sealing 圏, 4 is the upper cover, 5 is the suction interface, 6 is the suction port in the collecting bag, 7 is the collecting bag expansion interface, 8 is Connecting pipe, 9 is a negative pressure source, 10 is a nano-space, 11 is a confined space (11), 12 is a tee, 13 is a switch, 14 is an air filter, 15 is a water absorbing material, 16 is a liquid spill prevention device, 17 is a sealing cover, 21 is an open end of a rigid capacity, 22 is a lock, and 41 is a fixed ring.

[32] In the prior art FIG. 1, 101 is a rigid container, 102 is an upper cover, 103 is a sealing port, and 104 is a latch.

105 is the suction port, 106 is the suction port, 107 is the suction pipe, 108 is the suction pipe, 109 is the air filter, 110 is the negative pressure source, 111 is the power plug, 112 is the power switch, 113 is the valve switch.

BEST MODE FOR CARRYING OUT THE INVENTION

[33]

[34] Embodiment 1: Medical vacuum suction device using disposable collection bag

[35] Manufacture of rigid containers made of transparent plastic or glass 2, cover the upper cover 4 with plastic or metal, and install the suction port 5 and the suction port 6 in the collection bag on the upper cover 4. A disposable collection bag 1 made of a plastic film is placed in the rigid container 2,

[36] and unfolding the open end of the disposable collecting bag 1 and matching the sealing opening 3 on the open end 21 of the rigid container and the open end of the rigid container, and pressing the upper cover 4 to form a sealing structure; Forming a nano-space 10 between the inside of the bag 1 and the upper cover 4; forming a sealing structure between the outer wall of the disposable bag 1, the open end 21 of the rigid container, and the open end of the rigid container and the upper cover 4 11. A connecting pipe 8 made of a plastic hose is connected to the suction port 5; as a suction pipe, it is in communication with the object space 10. Then, a connecting pipe 8 made of a plastic hose is connected to the air suction port 6 in the collecting bag, and is used as an air suction pipe in the bag, and the air suction pipe in the bag is also communicated with the object space 10. Connecting a connecting tube 8 made of another plastic hose to the collecting bag unfolding interface 7 on the wall of the rigid container 2, as the outer wall of the collecting bag and the rigid container 2, the upper cover 4, the sealing jaw 3, and the rigid container opening An air suction pipe that forms a closed space 11 between the ends 21, that is, an air suction pipe that enables the collection bag to be deployed. The inner suction pipe and the exhaust pipe capable of unwinding the collecting bag are connected through the tee 12 and the negative pressure source 9 connected. Refer to Figures 2 to 3.

[37] When the negative pressure source 9 starts to work, the switch 13 is opened, and the air suction pipe which is deployed by the collecting bag evacuates the air in the sealed space 11 to form a low pressure, so that the disposable collecting bag 1 made of plastic film is unfolded, and the same pressure is negative. The pressure of the upper cover 4 on the sealing jaw 3 is further increased, and the sealing performance is improved. Here, the medical sewage can be pumped into the disposable collection bag 1 through the suction pipe.

[38] If the structure of the present invention is not used, although the disposable collecting bag 1 can be unfolded as much as possible before water absorption, the strength of the bag wall of the disposable collecting bag manufactured by the plastic film is too low during the water absorbing process, and the plastic film is manufactured. The disposable collection bag will lift and block the suction port, eventually resulting in no water absorption, or only low pressure, intermittent water absorption, during which the disposable collection bag needs to be unfolded by the weight of the water already sucked in the bag. The structure cannot continuously absorb water or absorb water with a large suction force. However, the structure of the present invention is used, since the wall of the bag is continuously absorbed by the suction in the process of sucking water, and the collecting bag is kept unfolded, and the water can be continuously absorbed, and the water absorption pressure is relatively large.

[39] Embodiment 2: Medical vacuum suction device using integrated disposable bag

[40] In this embodiment, the fixing ring 41 fixes the disposable collecting bag 1 to the upper cover 4 to form a sealing structure; the same upper cover 4 is provided with a suction interface 5, a suction port 6 in the collecting bag, and a collecting bag. The interface 7 is unfolded; the suction port 5 and the suction port 6 in the collection bag are connected to the contents space 10 in the disposable collection bag, and the collection bag deployment interface 7 is not in communication with the contents space 10 in the disposable collection bag. The upper cover 4 has a suction port 5, a suction port 6 in the collection bag, a collection bag deployment interface 7, and a structure in which the disposable collection bag 1 is connected is simply referred to as an integrated structure.

[41] The disposable collection bag 1 is placed in the rigid container 2, and the upper cover 4 of the integrated structure is placed on the open end 21 of the rigid container 2, so that the outer wall of the disposable collection bag 1 and the open end of the rigid container 21 and a sealing structure 11 is formed between the sealing jaw 3 on the open end of the rigid container and the upper cover 4; and a nano-space 10 is formed between the disposable collecting bag 1 and the upper cover 4.

[42] A connecting pipe 8 made of a plastic hose is connected to the suction port 5 as a suction pipe, and is connected to the receiving space 10 in the disposable collecting bag.

[43] A connecting pipe 8 made of a plastic hose is connected to the suction port 6 in the collecting bag, and is used as an air suction pipe in the bag to be connected to the receiving space 10 in the disposable collecting bag. A connecting pipe 8 made of another plastic hose is connected to the collecting bag deployment port 7 as an air suction pipe of the sealed space 11 and the sealing structure 11 A collection of unrolled tubes. The suction pipe in the bag and the suction pipe which can unfold the collection bag are connected through the tee 12 and connected to the negative pressure source 9. Refer to Figure 4, Figure 6 to Figure 10.

[44] When the negative pressure source 9 starts to work, the air suction pipe which is unfolded by the collecting bag evacuates the air in the sealed space 11 to form a low pressure, so that the disposable collecting bag 1 made of plastic film is unfolded, and the negative pressure is further increased. The pressure of the cover 4 against the sealing jaw 3 improves the sealing performance. Here, the medical sewage can be pumped into the disposable collection bag 1 through the suction pipe.

[45] The above-mentioned upper cover has a suction port 5, a suction port in the collection bag 6, a collection bag deployment interface 7, and an integrated structure with a disposable collection bag 1 connected, which can be conveniently collected after collecting medical sewage. The replacement of the ground can completely avoid the pollution of the medical sewage to the medical staff, and the collection is convenient, fast, safe and effective.

[46] To further improve the function, the lock 22 can be added to the open end 21 of the rigid container to increase the tightness, see Figure 5. It is also possible to add an air filter 14 to protect the negative pressure source 9 from contamination, see Figure 7. In addition, the addition of an anti-liquid spill device prevents liquid from being drawn to the source of negative pressure and protects the source of negative pressure from contamination, see Figure 8. Adding switch 13 prevents accidental spillage of medical waste, see Figure 9. The sealing cover 17 can be used to seal the suction port 5 and the suction port 6 in the collecting bag with the sealing cover 17 after the medical sewage is collected, to prevent leakage of medical sewage.

[47] In addition, a water absorbing material 15 may be built in the disposable collecting bag. The water absorbing material 15 may be a super absorbent resin, and the water absorbing material 15 is swelled into a colloid in the disposable collecting bag, and is not easily flowed, thereby facilitating transportation.

[48] It should be noted that the structures disclosed and illustrated herein may be replaced with other structures having the same effect, and the embodiments described herein are not the only structures that implement the invention. While the preferred embodiments of the present invention have been described and illustrated herein, it will be apparent to those skilled in the art that Instead, the scope of the present invention is defined by the spirit and scope of the appended claims.

Claims

Claim

1. A medical vacuum suction device using a disposable collection bag, comprising:

Collection bag (1) with a nano-space inside (10);

Rigid container (2);

Sealed 圏 (3);

Upper cover (4);

a suction port (5) mounted on the upper cover (4) and connected to the receiving space (10) of the collecting bag (1);

a collecting air suction port (6) is attached to the upper cover (4) and connected to the receiving space (10) of the collecting bag (1);

a collection bag deployment interface (7) mounted on the upper cover (4) or the rigid container (2); a connection tube (8);

Negative pressure source (9);

Wherein, the collection bag (1) is installed in the rigid container (2), and forms a closed space (11) through the upper cover (4), the sealing cymbal (3) and the open end (21) of the rigid container, and the collecting bag deployment interface (7) Connected to the confined space (11); the suction port (6) in the collection bag and the collection bag expansion port (7) are connected to the negative pressure source (9) through the connection pipe (8).

2. The medical vacuum suction device using a disposable collection bag according to claim 1, wherein: the open end of the collection bag (1) is fixed to the upper cover (4) by a fixing ring (41), The inside of the collection bag (1) and the upper cover (4) form a sealed structure of the object space (10); and the suction port (5) and the suction port (6) in the collection bag are mounted on the upper cover (4), and Connected to this nanospace (10). The outer wall of the collecting bag (1) forms a closed space (11) with the upper cover (4), the sealing jaw (3) and the open end (21) of the rigid container (2); the collecting bag deployment interface (7) is mounted in a rigid container ( 2) Connect to this confined space (11).

3. The medical vacuum suction device using a disposable collection bag according to claim 1, wherein: the open end of the collection bag is fixed to the upper cover (4) through a fixing ring (41), and the collection bag

(1) The inside and the upper cover (4) form a sealed structure of the nano-space (10); and the suction port (5) and the collection bag inner suction port (6) are mounted on the upper cover (4), and with this Nano space (10 The connecting bag (1) is installed in the rigid container (2), and the outer wall of the collecting bag (1) is formed with the upper cover (4), the sealing jaw (3) and the open end (21) of the rigid container (2). Confined space (11); The collection bag deployment interface (7) is mounted on the upper cover (4) and connected to this confined space (11).

4. The medical vacuum suction device using a disposable collection bag according to claim 1, wherein: the upper cover (4) and the open end (21) of the rigid container are provided with a lock for reinforcing the seal. Buckle (22).

5. The medical vacuum suction device using a disposable collection bag according to claim 1, wherein: the collection bag inner suction port (6) and the collection bag deployment interface (7) pass through the connection tube (8) After connecting with the tee (12), connect it to the negative pressure source (9).

6. The medical vacuum suction device using a disposable collection bag according to claim 1, wherein: the collection bag inner suction port (6) and the collection bag deployment interface (7) pass through the connection tube (8) Connect to the air filter (14) and then to the negative pressure source (9).

7. The medical vacuum suction device using a disposable collection bag according to claim 1, wherein: the collection bag contains a water absorbing material (15).

8. The medical vacuum suction device using a disposable collection bag according to claim 1, wherein: the liquid suction port (6) in the collection bag is provided with a liquid overflow prevention device (16).

9. The medical vacuum suction device using a disposable collection bag according to claim 1, wherein: the suction port (5) and the suction port (6) in the collection bag are provided with a sealing cover (17).

10. The medical vacuum suction device using a disposable collection bag according to claim 1, wherein: the suction port (5), the suction port (6) in the collection bag, the connecting pipe (8), and the collection A switch (13) is provided on the bag deployment interface (7).