CN216456236U

CN216456236U - Drainage tube flusher

Info

Publication number: CN216456236U
Application number: CN202122338422.8U
Authority: CN
Inventors: 程帼方; 李翎语
Original assignee: Dongguan Tungwah Hospital Co Ltd
Current assignee: Dongguan Tungwah Hospital Co Ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-05-10
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses a drainage tube flusher which comprises a barrel, wherein a needle body and a drainage channel are arranged at the front end of the barrel, a first valve body is arranged on the drainage channel, the needle body is respectively communicated with the outside and the inside of the barrel, a push rod, a first piston and a second piston are arranged in the barrel, the first piston and the second piston are installed on the push rod, the first piston and the second piston slide along the inner wall of the barrel without clearance under the action of the push rod, the second piston is positioned at one end, close to the needle body, of the push rod, the second piston and the inner wall of the barrel are enclosed to form a first storage cavity containing a first medium, the first piston, the second piston and the inner wall of the barrel are enclosed to form a second storage cavity surrounding the push rod and containing a second medium, and the drainage tube flusher further comprises a movable sealing component for sealing and isolating or communicating the first storage cavity and the second storage cavity. This drainage tube flusher convenient to use avoids repeatedly exposing the drainage tube joint, and then reduces the risk that the patient infects.

Description

Drainage tube flusher

Technical Field

The utility model belongs to the field of clinical medical supplies, and particularly relates to a drainage tube flusher.

Background

The drainage tube is generally used after a surgical operation and is mainly used for guiding purulence, blood and liquid accumulated in human tissues or body cavities to the outside of the body, preventing postoperative infection and promoting wound healing, a plurality of drainage tubes are blocked by blood clots or tissue clots in clinical use, a doctor is required to wash the drainage tube at the moment, specifically, the drainage tube needs to be filled with medicine firstly, and then is washed by adopting normal saline, so that the joint of the drainage tube is repeatedly separated and exposed, and the risk of infection of a patient is easily increased.

For example, after neurosurgery, a patient needs to keep a deep venous catheter and various channels of infusion passages, and blockage of the catheter or no blood return due to back suction often occurs, so urokinase medicine is needed to be used for perfusion of a drainage tube to dissolve blood clots.

Therefore, there is a need for a drainage tube flusher that is convenient to use and avoids repeatedly exposing the connection of the drainage tube.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drainage tube flusher which is convenient to use and can avoid repeated exposure of a drainage tube joint so as to reduce the risk of infection of a patient.

In order to achieve the above purpose, the utility model provides a drainage tube flusher, which comprises a barrel, wherein a needle body and a drainage channel are arranged at the front end of the barrel, a first valve body is arranged on the drainage channel, the needle body is respectively communicated with the outside and the inside of the barrel, a push rod is arranged in the barrel, and a first piston and a second piston which are arranged on the push rod are arranged in the barrel.

Compared with the prior art, the drainage tube flusher has the advantages that the first valve body is arranged on the drainage channel, so that the capacity of the first storage cavity can be adjusted by moving the push rod, the first storage cavity is communicated with the second storage cavity under the action of the sealing movable assembly, and the second medium can flow into the first storage cavity from the second storage cavity and then flow into the drainage tube, so that the drainage tube can be flushed by the second medium without exposing the joint of the drainage tube. And through set up first valve body on the drain, the medium volume that can the steerable entering in the drainage tube.

Preferably, the movable sealing component of the present invention is provided with a pressure lever which is sleeved inside the push rod and can move relative to the push rod, the pressure lever moves relative to the push rod along the needle body direction to drive the movable sealing component to move towards the needle body direction to communicate the first storage chamber and the second storage chamber, so that the second medium enters the first storage chamber.

Preferably, the second piston of the utility model is provided with a flow channel communicating the first storage chamber and the second storage chamber, the sealing movable assembly comprises a plugging part for plugging or opening the flow channel, the pressure lever sequentially penetrates through the first piston and the second piston and is connected with the plugging part, the pressure lever moves relative to the push rod along the needle body direction to drive the plugging part to be far away from the second piston so as to open the flow channel, and the pressure lever moves relative to the push rod along the direction far away from the needle body to drive the plugging part to be close to and abut against the second piston so as to plug the flow channel.

Preferably, the movable sealing component of the utility model further comprises a limiting part, a bulge and a spring capable of switching between a compression state and a recovery state, the limiting part is positioned at the end part of the second piston close to the needle body, the bulge is arranged on the peripheral wall of the pressure lever, and two ends of the spring are respectively connected with the bulge and the limiting part. Specifically, when the pressure lever moves relative to the push rod along the needle body direction, the spring is in a compressed state, the plugging part is far away from the second piston, and the flow channel is opened; when the pressure lever moves relative to the push rod along the direction away from the needle body, the spring is converted into a return shape from a compression shape, the plugging part is close to and abuts against the second piston, and the flow channel is closed.

Preferably, the outer peripheral wall of the plunger of the present invention extends radially outwardly to form a projection.

Preferably, the spring of the utility model is sleeved on the outer peripheral wall of the pressure lever.

Preferably, the flow channel of the present invention includes a plurality of sub-flow channels distributed at intervals.

Preferably, the second piston of the present invention is provided with a chamber, a first opening and a second opening, the second opening faces the second storage chamber, the first opening faces the first storage chamber, and the second opening, the chamber and the first opening are communicated to form the sub-flow passage.

Preferably, the cylinder body of the utility model is provided with volume scales. The maximum scale values of the volume scale were 20mL, 30mL, and 40 mL. The inventor of the present invention found in the process of invention creation that when the second medium in the second storage chamber is 30mL and the first medium in the first storage chamber is 10mL, the push rod can be driven very easily to slide the second piston in a direction away from or close to the front end of the cylinder, i.e. the influence of the weight of the second medium in the second storage chamber on the driving of the push rod can be ignored. Specifically, the second medium is stored in the second storage chamber before use, that is, the second medium, the push rod, the first piston and the second piston are simultaneously assembled in the cylinder.

Preferably, a third storage cavity is arranged in the needle body, a second valve body for controlling the flow direction of the fluid is arranged at one end, close to the front end of the barrel, of the needle body, and a detachable blocking portion is arranged at one end, far away from the front end of the barrel, of the needle body. The third storage cavity can store powder solute of a first medium with specific mass, and the volume of the first storage cavity can be adjusted to a required size by moving the push rod through the arrangement of the first valve body; and then the first storage cavity is communicated with the second storage cavity under the action of the sealing movable assembly, so that a second medium in the second storage cavity enters the first storage cavity, and then the second storage cavity is arranged through the second valve body, and the second medium dissolves a powder solute in the third storage cavity to form a first medium.

Preferably, the cartridge of the present invention is made of a transparent material, which makes it possible to clearly and easily observe the volume of the first medium in the first reservoir and the volume of the second medium in the second reservoir.

Drawings

FIG. 1 is a schematic view of the structure of a drain flusher of the present invention.

FIG. 2 is a schematic view of the first reservoir and the second reservoir of the drain flusher of the present invention in sealed isolation.

FIG. 3 is a schematic view of the first reservoir and the second reservoir of the catheter flusher of the present invention in communication.

Fig. 4 is a schematic structural view of the first piston and the second piston of the present invention mounted on the push rod.

Detailed Description

To explain technical contents, structural features, and technical effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with specific embodiments.

Referring to fig. 1 to 3, the drainage tube flusher 100 of the present invention includes a barrel 11, a needle 12 and a drainage channel 13 are disposed at a front end 111 of the barrel, a first valve 131 is disposed on the drainage channel 13, the needle 12 is respectively communicated with the outside and an inside 112 of the barrel, the inside 112 of the barrel is disposed with a push rod 14, a first piston 15 and a second piston 16 mounted on the push rod 14, the first piston 15 and the second piston 16 slide along an inner wall 113 of the barrel without gap under the action of the push rod 14, the second piston 16 is disposed at an end of the push rod 14 close to the needle 12, the second piston 16 and the inner wall 113 of the barrel enclose to form a first storage chamber 17 for containing a first medium, the first piston 15, the second piston 16 and the inner wall 113 of the cylinder enclose a second storage chamber 18 surrounding the push rod 14 and containing the second medium, and a sealing movable assembly 19 for sealing the first storage chamber 17 from or communicating with the second storage chamber 18 is further included. According to the drainage tube flusher 100, the first valve body 131 is arranged on the drainage channel 13, so that the volume of the first storage cavity 17 can be adjusted by moving the push rod 14, the first storage cavity 17 is communicated with the second storage cavity 18 under the action of the sealing movable component 19, and a second medium can flow into the first storage cavity 17 from the second storage cavity 18 and then flow into the drainage tube, so that the drainage tube can be flushed by the second medium without exposing a drainage tube joint, and the drainage tube flusher 100 is convenient to use, saves the operation time and avoids secondary infection of a patient. Also by providing the first valve body 131 on the drain 13, the amount of the first medium or the second medium entering the drain can be controlled.

Specifically, the first medium and the second medium may be a plurality of media, and in practice, the specific kinds of the first medium and the second medium may be specifically selected according to the type of the surgical operation, such as neurosurgery, the first medium is urokinase liquid medicine, and the second medium is physiological saline. After the drainage tube flusher 100 of the present invention is used in neurosurgery, before the drainage tube flusher is used, the normal saline is stored in the second storage chamber 18, the first valve body 131 is closed, the first storage chamber 17 and the second storage chamber 18 are sealed and isolated by the sealing movable component 19 (as shown in fig. 2), the urokinase liquid medicine is stored in the first storage chamber 17, and specifically, the external prepared urokinase liquid medicine can be pumped into the first storage chamber 17 through the needle body 12 to be stored by moving the push rod 14; when in use, the needle body 12 is communicated with the drainage tube, the push rod 14 is driven to enable the second piston 16 to slide towards the direction close to the front end 111 of the cylinder body so as to fill the drainage tube with the medicine, and if the volume of the filled urokinase liquid medicine is temporarily reduced, the first valve body 131 can be opened to drain the redundant liquid medicine; after the medicine is filled, the first valve body 131 is opened, the push rod 14 is moved to enable the second piston 16 to slide for a certain distance in the direction away from the front end 111 of the cylinder body, then the first valve body 131 is closed, the sealing movable assembly 19 enables the first storage cavity 17 and the second storage cavity 18 to be communicated, so that the physiological saline in the second storage cavity 18 enters the first storage cavity 17, and then the push rod 14 is driven to enable the second piston 16 to slide in the direction close to the front end 111 of the cylinder body, so that the drainage tube is flushed. It can be seen that the drainage tube flusher 100 of the present invention is convenient to use and flushes the drainage tube without exposing the drainage tube connector after the drug infusion.

Referring to fig. 2 to 4, the movable sealing member 19 of the present invention is provided with a pressing rod 20, the pressing rod 20 is sleeved inside the push rod 14 and can move relative to the push rod 14, and the pressing rod 20 moves relative to the push rod 14 along the needle body 12 direction to drive the movable sealing member 19 to move towards the needle body 12 direction to communicate the first storage chamber 17 and the second storage chamber 18, so that the second medium in the second storage chamber 18 enters the first storage chamber 17. More specifically, the second piston 16 of the present invention is provided with a flow channel 161 communicating the first storage chamber 17 and the second storage chamber 18, the sealing movable assembly 19 includes a blocking portion 191 for blocking or opening the flow channel 161, the pressing rod 20 sequentially penetrates through the first piston 15 and the second piston 16 and is connected to the blocking portion 191, the pressing rod 20 moves along the needle body 12 direction relative to the push rod 14 to drive the blocking portion 191 to be away from the second piston 16 to open the flow channel 161, and the pressing rod 20 moves along the direction away from the needle body 12 relative to the push rod 14 to drive the blocking portion 191 to approach and abut against the second piston 16 to block the flow channel 161. More specifically, the movable sealing assembly 19 of the present invention further includes a limiting portion 192, a protrusion 193 and a spring 194 capable of switching between a compressed state and a restored state, wherein the limiting portion 192 is located at the end 162 of the second piston 16 close to the needle 12, the protrusion 193 is located on the outer peripheral wall of the pressing rod 20, and two ends of the spring 194 are respectively connected to the protrusion 193 and the limiting portion 192. Specifically, when the pressing rod 20 moves along the needle body 12 direction relative to the push rod 14, the spring 194 is in a compressed state, the blocking portion 191 is far away from the second piston 16, and the flow passage 161 is opened; when the pressing rod 20 moves relative to the push rod 14 along the direction away from the needle body 12, the spring 194 is converted from the compressed state to the restored state, the blocking portion 191 is close to and abuts against the second piston 16, and the flow passage 161 is closed. More specifically, the outer peripheral wall of the plunger 20 extends radially outward to form a protrusion 193, the spring 194 is sleeved on the outer peripheral wall of the plunger 20, and the stopper 192 is fixed on the second piston 16. Meanwhile, the end of the push rod 14 far away from the front end 111 of the cylinder body is provided with a push handle 141, which is convenient for pushing the push rod 14 to move.

Referring to fig. 2 to 4, the flow channel 161 of the present invention includes a plurality of sub-flow channels 1611 distributed at intervals. Preferably, the second piston 16 has a chamber 16111, a first opening 16112 and a second opening 16113, the second opening 16113 faces the second storage chamber 18, the first opening 16112 faces the first storage chamber 17, and the second opening 16113, the chamber 16111 and the first opening 16112 are connected to form a sub-flow passage 1611. When the first storage chamber 17 and the second storage chamber 18 are sealed and isolated, the blocking portion 191 blocks the plurality of first openings 16112 to prevent the second medium from flowing into the first storage chamber 17, thereby blocking the plurality of sub-flow channels 1611.

Referring to fig. 1 to fig. 3, a third storage chamber 121 is disposed in the needle body 12, a second valve 122 for controlling the flow direction of the fluid is disposed at the end of the needle body 12 close to the front end 111 of the barrel, and a detachable blocking portion 123 is disposed at the end of the needle body 12 away from the front end 111 of the barrel. When the drainage tube flusher 100 is used for neurosurgery, before the use, the blocking part 123 blocks one end of the needle body 12 far away from the front end 111 of the cylinder body, the physiological saline with a specific volume is stored in the second storage cavity 18, the urokinase with a specific mass 1 ten thousand units of powder is stored in the third storage cavity 121, the first valve body 131 is opened, the second valve body 122 is closed, and the volume of the first storage cavity 17 is adjusted to be the required volume by moving the push rod 14; the first valve body 131 is closed, the movable sealing assembly 19 communicates the first storage cavity 17 with the second storage cavity 18, so that the normal saline in the second storage cavity 18 enters the first storage cavity 17 to obtain the normal saline with the required volume, the movable sealing assembly 19 seals and separates the first storage cavity 17 from the second storage cavity 18, the second valve body 122 is opened, so that the normal saline flows into the third storage cavity 121 to dissolve 1 ten thousand units of powder of urokinase to obtain the urokinase liquid medicine required clinically, and then the blocking part 123 is detached to fill and flush the drainage tube with the medicine.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.

Claims

1. A drainage tube flusher comprises a cylinder body and is characterized in that the front end of the cylinder body is provided with a needle body and a drainage channel, the drainage channel is provided with a first valve body, the needle body is respectively communicated with the outside and the inside of the cylinder body, a push rod, a first piston and a second piston which are arranged on the push rod are arranged in the cylinder body, the first piston and the second piston slide along the inner wall of the cylinder body without clearance under the action of the push rod, the second piston is positioned at one end of the push rod close to the needle body, the second piston and the inner wall of the cylinder body enclose to form a first storage cavity for containing a first medium, the first piston, the second piston and the inner wall of the cylinder body are enclosed to form a second storage cavity which surrounds the push rod and contains a second medium, and the device further comprises a sealing movable assembly which is used for sealing, isolating or communicating the first storage cavity and the second storage cavity.

2. The drainage tube flusher of claim 1 wherein said movable sealing member includes a plunger received in said plunger and movable relative to said plunger, said plunger moving relative to said plunger along the direction of said needle to move said movable sealing member in the direction of said needle to communicate said first reservoir with said second reservoir such that said second medium enters said first reservoir.

3. The drainage tube flusher of claim 2 wherein the second piston is provided with a flow channel communicating the first storage chamber and the second storage chamber, the movable sealing assembly comprises a plugging portion for plugging or opening the flow channel, the pressure rod sequentially penetrates through the first piston and the second piston and is connected with the plugging portion, the pressure rod moves relative to the push rod along the needle body direction to drive the plugging portion to be away from the second piston to open the flow channel, and the pressure rod moves relative to the push rod along the direction away from the needle body to drive the plugging portion to be close to and abut against the second piston to plug the flow channel.

4. The drainage tube flusher of claim 3 wherein said movable sealing assembly further includes a limiting portion, a protrusion and a spring capable of switching between a compressed state and a restored state, said limiting portion is located at the end of said second piston near said needle body, said protrusion is located on the outer peripheral wall of said pressure bar, and two ends of said spring are connected to said protrusion and said limiting portion respectively.

5. The drain tube flusher of claim 4 wherein said projection is formed by an outer peripheral wall of said plunger extending radially outwardly.

6. The drain tube flusher of claim 4 wherein said spring is mounted to an outer peripheral wall of said plunger.

7. The drain tube flusher of claim 3 wherein said flow path includes a plurality of spaced apart sub-flow paths.

8. The drainage tube flusher of claim 7 wherein said second piston is provided with a chamber, a first opening and a second opening, said second opening facing said second storage chamber, said first opening facing said first storage chamber, said second opening, said chamber and said first opening communicating to form said sub-flow passage.

9. The drain tube flusher of claim 1 wherein said barrel is provided with volume graduations.

10. The drainage tube flusher of claim 1 wherein a third reservoir is provided in said needle body, a second valve body for controlling the direction of fluid flow is provided at the end of said needle body near the front end of said barrel, and a removable stopper is provided at the end of said needle body remote from the front end of said barrel.