CN210020556U

CN210020556U - Negative pressure suction device

Info

Publication number: CN210020556U
Application number: CN201920685230.4U
Authority: CN
Inventors: 刘涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-02-07
Anticipated expiration: 2029-05-14

Abstract

The utility model discloses a negative pressure suction device relates to negative pressure suction technical field. One end of the middle drainage tube (1) of the utility model is a leading-out end (101), and the other end is a leading-away end (112); the negative pressure tank (2) comprises a tank body (201) and a tank cover (202), a gas pipeline (203) connected with a vacuumizing device and a through pipe (207) for the drainage pipe (1) to penetrate through are arranged on the tank cover (202), and the guide end (112) is connected with a liquid collection bag (3) in the negative pressure tank (2). Compared with the prior art, the utility model has the advantages that the drainage tube and the liquid collecting bag are disposable, the negative pressure tank is recycled and is non-contact, the chance that external air enters the wound of a patient is eliminated, the utility model is environment-friendly and sanitary, the material consumption is reduced, and the workload of disinfection is reduced; a check valve and a backflow prevention structure are arranged to prevent accumulated liquid from flowing back; the fixing pad, the clamping sleeve and the fastening body are arranged, so that the drainage tube is convenient to mount, and the phenomenon that the drainage tube slides out or shifts is avoided.

Description

Negative pressure suction device

Technical Field

The utility model relates to a negative pressure suction technical field, in particular to negative pressure suction device can be used to the hydrops suction of breast cancer postoperative.

Background

The negative pressure suction device is a medical appliance for treatment and rehabilitation, is mainly used for sucking out effusion after operations such as breast cancer and the like, and is beneficial to the quick healing of wounds of patients.

The existing negative pressure suction devices are disposable simple negative pressure suction devices, cannot be reused and have large material consumption; the other type is a negative pressure suction device which can be circulated for many times, and needs to be cleaned frequently and disinfected thoroughly, thus increasing the workload of medical staff. In addition, the negative pressure suction device preferably eliminates the possibility that external air enters the wound of the patient, and also needs to prevent the wound of the patient from being secondarily injured by the backflow of effusion; the drainage tube is not fixed properly and is easy to slide out or shift, and the phenomenon that the drainage tube slides out or shifts is avoided.

Disclosure of Invention

The utility model provides a negative pressure suction device, which adopts the design of combining partial disposable and main body circulation, seeks a balance between large material consumption and large disinfection workload, and greatly reduces the chance of external gas entering the wound of a patient; a check valve and a backflow prevention structure are arranged to prevent accumulated liquid from flowing back; the fixing pad, the clamping sleeve and the fastening body are arranged to avoid the phenomenon that the drainage tube slides out or shifts.

The specific technical scheme is that a negative pressure suction device includes: a drainage tube, a negative pressure tank and a liquid collecting bag; one end of the drainage tube is a leading-out end, and the other end of the drainage tube is a leading-away end;

the negative pressure tank comprises a tank body and a tank cover, a gas pipeline connected with the vacuumizing device and a through pipe for the drainage tube to penetrate are arranged on the tank cover, and the guiding end is connected with a liquid collecting bag in the negative pressure tank.

Further, a fixing pad is arranged at the outer side of the drainage tube close to the leading-out end. The fixing pad is made of silica gel materials friendly to the contact with the skin of a human body, when the fixing pad is used, the fixing pad is attached to the skin of a patient, the fixing pad is conveniently and firmly adhered with a medical adhesive tape, and the leading-out end is not easy to slide out or shift.

Furthermore, a cutting sleeve is arranged on the drainage tube, the part of the cutting sleeve, which is tightly attached to the drainage tube, is the inner layer of the cutting sleeve, and the folded part of the outer side of the cutting sleeve is the outer layer of the cutting sleeve. The cutting ferrule is used for fastening and sealing the drainage tube at the through pipe.

Furthermore, the outer side of the drainage tube close to the leading end is provided with a limiting body and a fastening body, and the fastening body is an annular bulge. The limiting body limits the length of the drainage tube extending into the liquid collection bag; the fastening body realizes the tight combination between the leading end and the joint of the liquid collecting bag.

Furthermore, be equipped with on the drainage tube and prevent the structure of backflowing, mainly used prevents the refluence of hydrops.

Furthermore, the anti-backflow structure is characterized in that an inverted cone and a forward cone are arranged on the inner side of the drainage tube close to the leading end, a necking is formed at the joint of the inverted cone and the forward cone, a supporting rod is arranged at the bottom of the forward cone, the floating ball is located in the forward cone, and the diameter of the floating ball is larger than the inner diameter of the drainage tube at the necking. The density of the floating ball is less than that of the accumulated liquid, and the support rod cannot completely block the inner cavity of the drainage tube. Under normal conditions, the floating ball is positioned on the support rod, the interior of the drainage tube is unobstructed, and the sucked accumulated liquid can flow through the surface of the floating ball and enter the liquid collecting bag; when the accident appeared, when hydrops wanted to flow back in the collection liquid bag, the floater can float to throat department and plug up the throat along with the hydrops, and the hydrops can't flow back to patient's wound, can not cause the secondary damage to the patient.

Furthermore, the vacuum tube is connected with a gas pipeline, and a check valve is arranged on the vacuum tube. The check valve ensures that the vacuum is pumped from the negative pressure tank, and the gas cannot return to the negative pressure tank.

Furthermore, a safety valve is arranged on the gas pipeline. When the vacuum degree in the negative pressure tank is overlarge, the safety valve is opened to release the pressure.

Furthermore, the connection part of the tank body and the tank cover is provided with threads, and the connection part of the tank body and the tank cover threads is provided with a sealing gasket. The negative pressure tank has good sealing performance and is used for vacuumizing.

Furthermore, the bag body of the liquid collecting bag is made of elastic materials and is easy to deform, and when negative pressure is generated in the negative pressure tank, the liquid collecting bag directly expands to suck out accumulated liquid. The drainage tube is made of medical hose material.

After the breast cancer operation, firstly detaching the disposable drainage tube and the liquid collecting bag, opening the tank cover, enabling the leading end of the drainage tube to penetrate through the through pipe and be tightly connected with the joint of the liquid collecting bag through the fastening body, then connecting the tank cover on the tank body in a threaded manner, adjusting the clamping sleeve to fasten and seal the drainage tube at the through pipe, extending the leading end into the body of a patient, attaching the fixing pad to the skin of the patient, and firmly adhering the fixing pad with a medical adhesive tape; opening the check valve, vacuumizing the negative pressure tank, expanding the liquid collection bag to suck out accumulated liquid, positioning the floating ball on the support rod, ensuring that the inside of the drainage tube is smooth, and allowing the sucked-out accumulated liquid to flow through the surface of the floating ball and enter the liquid collection bag; after the liquid is absorbed for one time, the tank cover is opened, and the liquid collecting bag is taken out; if the liquid needs to be absorbed continuously, the liquid collecting bag is replaced by a new one. When the accident appeared, negative pressure jar internal pressure increases, and when hydrops wanted to flow back in the collection liquid bag, the floater can float to throat department and plug up the throat along with the hydrops, and the unable refluence of hydrops can not cause the secondary damage to the patient to patient's wound.

Compared with the prior art, the utility model has the advantages that the drainage tube and the liquid collecting bag are disposable, the negative pressure tank is recycled and is non-contact, the chance that external air enters the wound of a patient is eliminated, the utility model is environment-friendly and sanitary, the material consumption is reduced, and the workload of disinfection is reduced; a check valve and a backflow prevention structure are arranged to prevent accumulated liquid from flowing back; the fixing pad, the clamping sleeve and the fastening body are arranged, so that the drainage tube is convenient to mount, and the phenomenon that the drainage tube slides out or shifts is avoided.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

FIG. 3 is a schematic view of the leading end of a drainage tube according to an embodiment of the present invention;

FIG. 4 is a schematic view of the leading end of a drainage tube according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of fig. 4.

Description of reference numerals:

1. a drainage tube, 2, a negative pressure tank, 3, a liquid collection bag, 4 and a sealing gasket;

101. a leading-out end 102, a fixed pad 103, a cutting sleeve inner layer 104, a cutting sleeve outer layer 105, an inverted cone 106, a right cone 107, a necking 108, a floating ball 109, a support rod 110, a limiting body 111, a fastening body 112, a leading-away end 113 and a cutting sleeve,

201. a tank body 202, a tank cover 203, a gas pipeline 204, a vacuumizing pipe 205, a check valve 206, a safety valve 207 and a through pipe; 208. a thread;

301. bag body 302, joint.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples:

it should be noted that the structures, ratios, sizes, etc. shown in the drawings of the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes should fall within the scope that the technical contents disclosed in the present invention can cover without affecting the functions and the achievable purposes of the present invention.

Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

1-2, a negative pressure suction device, comprising: a drainage tube 1, a negative pressure tank 2 and a liquid collecting bag 3; one end of the drainage tube 1 is a leading-out end 101, and the other end is a leading-away end 112; the negative pressure tank 2 comprises a tank body 201 and a tank cover 202, the tank cover 202 is provided with a gas pipeline 203 connected with a vacuumizing device and a through pipe 207 for the drainage pipe 1 to penetrate, and the guide end 112 is connected with a liquid collection bag 3 in the negative pressure tank 2.

An evacuation pipe 204 is connected to the gas line 203, and a check valve 205 is mounted on the evacuation pipe 204. The check valve 205 ensures that a vacuum is drawn from the negative pressure tank 2 and that gas does not return to the negative pressure tank 2. A safety valve 206 is installed on the gas pipe 203. When the vacuum degree in the negative pressure tank 2 is excessive, the safety valve 206 is opened to release the pressure. The joint of the tank body 201 and the tank cover 202 is provided with threads 208, and the joint of the tank body 201 and the tank cover 202 is provided with a sealing gasket 4. The negative pressure tank 2 has good sealing performance and is used for vacuumizing. The bag body 301 of the liquid collecting bag 3 is made of elastic materials and is easy to deform, and when negative pressure is generated in the negative pressure tank 2, the liquid collecting bag 3 is directly expanded to suck out accumulated liquid.

In FIG. 3, a fixing pad 102 is provided at the outside of the draft tube 1 near the leading end 101. The fixing pad 102 is made of a silicone material friendly to human skin.

In FIG. 4, a cutting sleeve 113 is arranged on the drainage tube 1, the cutting sleeve inner layer 103 is the part of the cutting sleeve 113 tightly attached to the drainage tube 1, and the cutting sleeve outer layer 104 is the folded part outside the cutting sleeve 113. The ferrule 113 is used to securely seal the drain tube 1 at the through tube 207. A limiting body 110 and a fastening body 111 are arranged on the outer side of the drainage tube 1 near the leading end 112, and the fastening body 111 is an annular bulge. The limiting body 110 limits the length of the drainage tube 1 extending into the liquid collection bag 3; the fastening body 111 realizes a tight coupling between the leading end 112 and the nipple 302 of the fluid collection bag 3.

Fig. 5, the drainage tube 1 is provided with a backflow prevention structure, which is mainly used for preventing the backflow of the effusion. An inverted cone 105 and a right cone 106 are arranged on the inner side of the drainage tube 1 near the leading end 112, a necking 107 is formed at the joint of the inverted cone 105 and the right cone 106, a supporting rod 109 is arranged at the bottom of the right cone 106, a floating ball 108 is positioned in the right cone 106, and the diameter of the floating ball 108 is larger than the inner diameter of the drainage tube 1 at the necking 107. The density of the floating ball 108 is less than that of the accumulated liquid, and the support rod 109 cannot completely block the inner cavity of the drainage tube 1. Under normal conditions, the floating ball 108 is positioned on the supporting rod 109, the interior of the drainage tube 1 is unobstructed, and the sucked effusion can flow through the surface of the floating ball 108 and enter the liquid collecting bag 3; when an accident occurs, the effusion in the liquid collecting bag 3 is to flow back, the floating ball 108 floats up to the necking 107 along with the effusion and blocks the necking 107, the effusion cannot flow back to the wound of a patient, and secondary damage to the patient cannot be caused.

After the breast cancer operation, firstly, the disposable drainage tube 1 and the liquid collecting bag 3 are disassembled, the tank cover 202 is opened, the leading end 112 of the drainage tube 1 penetrates through the through tube 207 and is tightly connected with the joint 302 of the liquid collecting bag 3 through the fastening body 111, then the tank cover 202 is in threaded connection with the tank body 201, the drainage tube 1 is fastened and sealed at the through tube 207 by adjusting the cutting sleeve 113, the leading-out end 101 extends into the body of a patient, and the fixing pad 102 is attached to the skin of the patient and is firmly adhered by a medical adhesive tape; the check valve 205 is opened, the negative pressure tank 2 is vacuumized, the liquid collection bag 3 expands to suck out accumulated liquid, the floating ball 108 is positioned on the supporting rod 109, the interior of the drainage tube 1 is smooth, and the sucked out accumulated liquid flows through the surface of the floating ball 108 and enters the liquid collection bag 3; after the liquid is absorbed for one time, the tank cover 202 is opened, and the liquid collecting bag 3 is taken out; if the liquid needs to be continuously absorbed, the liquid collecting bag 3 is replaced by a new one. When the accident appears, 2 internal pressure increases in the negative pressure jar, when the hydrops want to flow back in the collection liquid bag 3, floater 108 can float to throat 107 department and plug up throat 107 along with the hydrops, and the hydrops can't flow back to patient's wound, can not cause the secondary damage to the patient.

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.

Claims

1. A negative pressure suction device is characterized in that,

the method comprises the following steps: a drainage tube (1), a negative pressure tank (2) and a liquid collection bag (3);

one end of the drainage tube (1) is a leading-out end (101), and the other end is a leading-away end (112);

the negative pressure tank (2) comprises a tank body (201) and a tank cover (202), a gas pipeline (203) connected with a vacuumizing device and a through pipe (207) for the drainage pipe (1) to penetrate through are arranged on the tank cover (202), and the guide end (112) is connected with a liquid collection bag (3) in the negative pressure tank (2).

2. A negative pressure suction device according to claim 1, characterized in that a fixing pad (102) is provided on the outside of the draft tube (1) near the leading end (101).

3. The negative pressure suction device as claimed in claim 1, wherein the drainage tube (1) is provided with a cutting sleeve (113), the part of the cutting sleeve (113) tightly attached to the drainage tube (1) is a cutting sleeve inner layer (103), and the outside folded part of the cutting sleeve (113) is a cutting sleeve outer layer (104).

4. A negative pressure suction device according to claim 1, characterized in that a position limiting body (110) and a fastening body (111) are provided outside the drainage tube (1) near the leading end (112), the fastening body (111) being an annular protrusion.

5. The negative pressure suction device according to claim 1, wherein the drainage tube (1) is provided with a backflow prevention structure.

6. The negative pressure suction device as claimed in claim 5, wherein an inverted cone (105) and a forward cone (106) are arranged on the inner side of the draft tube (1) near the leading end (112), a throat (107) is formed at the joint of the inverted cone (105) and the forward cone (106), a support rod (109) is arranged at the bottom of the forward cone (106), the floating ball (108) is positioned inside the forward cone (106), and the diameter of the floating ball (108) is larger than the inner diameter of the draft tube (1) at the throat (107).

7. A negative pressure suction device according to claim 1, wherein an evacuation tube (204) is connected to the gas line (203), and a check valve (205) is mounted on the evacuation tube (204).

8. A negative pressure suction device according to claim 1, wherein a safety valve (206) is installed on the gas line (203).

9. The negative pressure suction device as claimed in claim 1, wherein the joint of the can body (201) and the can cover (202) is provided with a thread (208), and the joint of the can body (201) and the can cover (202) is provided with a sealing gasket (4).

10. A vacuum suction device according to claim 1, characterized in that the bag body (301) of the liquid collecting bag (3) is of an elastic material.