CN110354364A - A kind of safety closes chemotherapy tube flushing device - Google Patents

Abstract

The present invention relates to chemotherapeutic treatment technical fields, specially a kind of safety closes chemotherapy tube flushing device, including syringe, syringe is equipped with fixing pipe, the end of fixing pipe is equipped with check valve, check valve is equipped with the first outlet tube, first outlet tube is equipped with the second outlet tube, first outlet tube is equipped with threeway regulating device, threeway regulating device includes the rubber column closely bonded on the first outlet tube tube wall and the knob being arranged in outside the first outlet tube, the end of screw rod is equipped with sealing pillar, the top surface of syringe shell equipped with medicine-pouring pipe is equipped with multiple clamping apparatus annularly equidistantly arranged.Operation of the present invention is simple and fast, is convenient for washing pipe operation, and without frequently removing syringe, mitigates the work load of medical staff.

Description

A safety closed chemotherapy tube flushing device

technical field

The invention relates to the technical field of chemotherapy treatment, in particular to a safety closed chemotherapy flushing device.

Background technique

During the chemotherapy treatment of patients, in order to avoid repeated puncture work, a specific needle tube is generally placed in the patient's body, but in order to prevent some complications during the catheterization, it is necessary to flush the intravenous catheter regularly. The tube flushing device is required for tube operation, but when the general tube flushing device is in use, only one tube can be flushed at a time, and the staff needs to take up or take off the syringe repeatedly, which brings more troubles to the staff. the inconvenience. In view of this, we propose a safe closed chemotherapy flushing device.

Contents of the invention

The purpose of the present invention is to provide a safe closed chemotherapy flushing device to solve the problem that when the general flushing device proposed in the background technology is used, only one pipe can be flushed at a time, and it is necessary for the staff to take it repeatedly. Or take off the syringe, and then bring the problem of more inconvenience to the staff.

To achieve the above object, the present invention provides the following technical solutions:

A safety closed chemotherapy tube flushing device, comprising a syringe, the syringe is provided with a fixed tube, the end of the fixed tube is provided with a one-way valve, the one-way valve is provided with a first liquid outlet tube, and the first A liquid outlet pipe is provided with a second liquid outlet pipe, and the first liquid outlet pipe is provided with a three-way regulating device.

As a preference of the present invention, the first liquid outlet pipe and the second liquid outlet pipe are integrally formed, and the first liquid outlet pipe and the second liquid outlet pipe together form a complete three-way pipe.

As a preference of the present invention, the syringe includes a syringe housing, the surface of the syringe housing is provided with a scale line arranged along the length direction of the syringe housing, the top of the syringe housing is provided with a drug injection tube, and the drug injection The tube and the syringe housing are integrally formed, the injection tube communicates with the storage chamber inside the syringe housing, the syringe housing is provided with a pressing handle, and the top of the pressing handle is provided with a piston. The piston is slidingly connected with the syringe housing, and the piston and the pressing handle are integrally formed.

As a preference of the present invention, the drug injection tube and the fixing tube are plug-fitted.

As a preference of the present invention, a threaded hole communicating with the outside world is provided on the pipe wall of the first liquid outlet pipe, and a threaded hole communicating with the outside world is provided on the pipe wall of the first liquid outlet pipe facing the threaded hole. connected to the first through hole, and the first through hole is connected to the second liquid outlet pipe.

As a preference of the present invention, the three-way adjustment device includes a rubber column tightly bonded to the wall of the first liquid outlet pipe and a knob arranged on the outside of the first liquid outlet pipe. The position of the threaded hole is provided with a second through hole that is arranged horizontally and communicated with the outside world. The second through hole, the threaded hole and the first through hole are concentrically arranged and connected to each other. communicate with each other, the hole wall of the second through hole close to the threaded hole is provided with a first liquid hole communicating up and down, the first liquid hole communicates with the first liquid outlet pipe, and is close to the threaded hole. The bottom hole wall of the second through hole of the first through hole is provided with a second liquid passage hole communicating with the outside world, and a number of anti-slip protrusions arranged in a ring shape at equal intervals are provided on the annular side of the knob. From the beginning, a screw is provided at the position facing the threaded hole on the knob, the screw passes through the threaded hole and is threadedly connected with the threaded hole, and the end of the screw is provided with a sealing boss, so The sealing protrusion is located inside the second through hole, and the size of the sealing protrusion is adapted to the size of the second through hole.

As a preference of the present invention, the length of the sealing protrusion is greater than the diameter of the first liquid hole, the diameter of the second liquid hole, and the distance between the first liquid hole and the second liquid hole. The sum of the minimum distances between .

As a preference of the present invention, the top surface of the syringe housing provided with the injection tube is provided with a plurality of clamping devices arranged in a ring at equal intervals, and the clamping devices include a The fixed block on the surface is provided with a rubber block on the side of the fixed block close to the injection tube.

As a preference of the present invention, a fixed ring is provided on the tube body of the fixed tube near its bottom, and a plurality of slots arranged in a ring shape at equal intervals and connected to the outside are provided on the upper surface of the fixed ring. The rubber block is engaged with the corresponding slot.

As a preference of the present invention, a sealing gasket is also provided on the tube wall of the fixed tube, and the sealing gasket is in interference fit with the injection tube, and an insertion tube is also arranged in the fixed tube, and the insertion tube A plurality of ring-shaped protrusions arranged at equal intervals are closely bonded to the tube wall of the fixed tube, and the insertion tube is plugged and fitted with the drug injection tube.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention can install the first liquid outlet pipe and the second liquid outlet pipe on the corresponding indwelling pipe by setting the first liquid outlet pipe and the second liquid outlet pipe, and control the connection between the fixed pipe and the second liquid outlet pipe by rotating the knob. The first outlet pipe is connected or the fixed pipe is connected with the second outlet pipe, so that the two tubes can be flushed without removing the syringe once, which is convenient for operation and reduces the workload of the staff. It solves the problem that when the general flushing device is in use, only one pipe can be flushed at a time, and the staff needs to take up or take off the syringe repeatedly, which brings more inconvenience to the staff.

2. The present invention ensures that the fixation between the fixed tube and the drug injection tube is more firmly fixed through the provided clamping device and the card slot. In addition, through the insertion and cooperation between the provided insertion tube and the drug injection tube, it is further ensured that the fixed tube is not easy to be removed from the tube. The drug injection tube falls off to ensure that its overall structure is more firm, and solves the problem that the fixed tube is prone to fall off from the drug injection tube when the general flushing device is in use.

3. The present invention seals the ends of the first liquid outlet pipe and the second liquid outlet pipe through the provided sealing cover, avoiding the direct exposure of the ends of the first liquid outlet pipe and the second liquid outlet pipe, causing the first liquid outlet pipe Bacterial growth in the liquid pipe and the second liquid outlet pipe poses a certain threat to the health of the patient, and solves the problem that the pipes on the general flushing device are not provided with a sealing cover, which is likely to cause bacterial growth and affect the health of the patient.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of the present invention;

Fig. 2 is the explosion diagram of embodiment 1 of the present invention;

Fig. 3 is a sectional view of the first liquid outlet pipe of the present invention;

Fig. 4 is the sectional view of rubber column of the present invention;

Fig. 5 is the structural representation of embodiment 2 of the present invention

Fig. 6 is the enlarged view of place A in Fig. 5 of the present invention;

Fig. 7 is a schematic structural diagram of the clamping device of the present invention;

Fig. 8 is a bottom view of the fixing pipe and the fixing ring of the present invention;

Fig. 9 is a schematic structural view of the socket pipe and the bump of the present invention;

Figure 10 is a schematic structural view of Embodiment 3 of the present invention;

Fig. 11 is the bottom view of the sealing cap of the present invention;

Figure 12 is a schematic structural view of Embodiment 4 of the present invention;

Fig. 13 is a bottom view of the cover of the present invention.

In the figure: 1, syringe; 10, syringe shell; 11, scale line; 12, injection tube; 13, pressing handle; 131, piston; 2, fixed tube; 20, one-way valve; 21, first liquid outlet tube ; 211, threaded hole; 212, the first through hole; 22, the second liquid outlet pipe; 3, three-way adjustment device; 30, rubber column; 301, the second through hole; 302, the first liquid through hole; 303, The second liquid hole; 31, knob; 311, anti-slip protrusion; 312, screw; 313, sealing boss; 4, clamping device; 40, fixed block; 41, rubber block; 5, fixed ring; 50, Card groove; 6, sealing gasket; 60, socket pipe; 61, bump; 7, sealing cover; 70, anti-skid layer; 71, annular thread groove; , annular groove; 81, anti-slip stripes.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

Example 1

A safe closed chemotherapy tube flushing device, as shown in Figures 1 to 4, includes a syringe 1, the syringe 1 includes a syringe housing 10, the surface of the syringe housing 10 is provided with a scale mark 11 arranged along the length direction of the syringe housing 10, the syringe The housing 10 is made of a transparent material, which is convenient for observing the specific amount of liquid medicine in the syringe housing 10 through the scale line 11 and through the syringe housing 10;

The top of the syringe housing 10 is provided with a drug injection tube 12, the drug injection tube 12 is integrally formed with the syringe housing 10, the drug injection tube 12 communicates with the storage chamber inside the syringe housing 10, and the syringe housing 10 is provided with a pressing handle 13 , the top of the pressing handle 13 is provided with a piston 131, the piston 131 is slidingly connected with the syringe housing 10, and the piston 131 and the pressing handle 13 are integrally formed; The plug-fitting between them facilitates the installation of the injection tube 12 and the fixed tube 2, and it is also convenient for disassembly;

The end of the fixed tube 2 is provided with a one-way valve 20 to ensure that when the piston 131 is pushed forward, the liquid in the syringe housing 10 can only flow out along the one-way valve 20, and the liquid medicine cannot flow back into the syringe housing 10; The valve 20 is provided with a first liquid outlet pipe 21, and the first liquid outlet pipe 21 is provided with a second liquid outlet pipe 22. The first liquid outlet pipe 21 and the second liquid outlet pipe 22 are integrally formed. The liquid pipe 21 and the second liquid outlet pipe 22 together form a complete three-way pipe, which facilitates the connection of the first liquid outlet pipe 21 and the second liquid outlet pipe 22 with the external pipes, and realizes the flushing operation of the external pipes;

The pipe wall of the first liquid outlet pipe 21 is provided with a threaded hole 211 communicating with the outside world, and the position facing the threaded hole 211 is provided with a first through hole 212 communicating with the outside world on the pipe wall of the first liquid outlet pipe 21 , the first through hole 212 communicates with the second liquid outlet pipe 22 to ensure that the liquid entering the first through hole 212 can enter the second liquid outlet pipe 22 and flow out along the second liquid outlet pipe 22;

The first liquid outlet pipe 21 is provided with a three-way adjustment device 3, and the three-way adjustment device 3 includes a rubber column 30 tightly bonded to the wall of the first liquid outlet pipe 21 and a knob 31 arranged outside the first liquid outlet pipe 21 In the rubber column 30, a second through hole 301 is arranged horizontally and communicated with the outside at the position facing the threaded hole 211. The second through hole 301, the threaded hole 211 and the first through hole 212 are arranged concentrically and Interconnected with each other, the hole wall of the second through hole 301 close to the threaded hole 211 is provided with a first liquid hole 302 communicating up and down, the first liquid hole 302 communicates with the first liquid outlet pipe 21, close to the second The bottom hole wall of the second through hole 301 of a through hole 212 is provided with a second liquid through hole 303 that communicates with the outside world, and a screw rod 312 is provided at a position facing the threaded hole 211 on the knob 31, and the knob 31 and the screw rod 312 are The integral molding structure ensures that the structure is firmer and not easily damaged; the screw rod 312 passes through the threaded hole 211 and is threadedly connected with the threaded hole 211, and the end of the screw rod 312 is tightly bonded with a sealing boss 313, which is located on the second Inside the through hole 301, the size of the sealing boss 313 matches the size of the second through hole 301 to ensure that the annular side of the sealing boss 313 fits closely with the hole wall of the second through hole 301, thereby ensuring the sealing protrusion When the column 313 blocks the first liquid hole 302 or the second liquid hole 303 , the liquid cannot flow out from the first liquid hole 302 or the second liquid hole 303 .

In this embodiment, a number of anti-slip protrusions 311 arranged at equal intervals in a ring shape are provided on the annular side of the knob 31. The anti-slip protrusions 311 and the knob 31 are integrally formed to ensure a firmer structure, and through the anti-slip provided The protrusion 311 makes the staff rotate the knob 31 more smoothly without slipping.

Specifically, the length of the sealing boss 313 is greater than the sum of the diameter of the first liquid hole 302, the diameter of the second liquid hole 303, and the minimum distance between the first liquid hole 302 and the second liquid hole 303, when When the knob 31 is turned until the knob 31 moves outward, the sealing protrusion 313 moves toward the first liquid hole 302. When the knob 31 is turned until the knob 31 cannot continue to rotate, the sealing protrusion 313 The left side of the column 313 is just against the left side wall of the first liquid outlet pipe 21. At this time, the sealing protrusion 313 will block the first liquid hole 302, and the sealing protrusion 313 will not block the second liquid passage. The hole 303 is blocked, that is, the second liquid hole 303 communicates with the second through hole 301. At this time, the piston 131 is pushed, and the liquid in the syringe housing 10 will enter the second liquid hole 303 along the fixed tube 2. into the through hole 301, and flow out from the second liquid outlet pipe 22, so as to realize the flushing operation of the external pipe connected to the second liquid outlet pipe 22; The direction of the liquid pipe 21 moves, and at this time, the sealing protrusion 313 will move towards the direction of the second liquid hole 303, when the knob 31 is turned until the knob 31 cannot continue to rotate, at this time, the right side of the sealing protrusion 313 The side is just against the right pipe wall of the first liquid outlet pipe 21, the sealing boss 313 blocks the second liquid hole 303, and the sealing boss 313 does not block the first liquid hole 302, at this time , the first liquid hole 302 communicates with the second through hole 301, and then pushes the piston 131, the liquid in the syringe housing 10 will enter the second through hole 301 along the fixed tube 2 and the first liquid hole 302, and Flow out from the first liquid outlet pipe 21 along the top of the first liquid hole 302 to realize the flushing operation of the external pipe connected to the first liquid outlet pipe 21; when the knob 31 is turned until the knob 31 moves outward , and at this time the sealing protrusion 313 is just in the middle of the second through hole 301, at this time, the sealing protrusion 313 just realizes blocking the first liquid through hole 302 and the second liquid through hole 303, At this time, the medicinal liquid cannot flow out from the first liquid outlet pipe 21 and the second liquid outlet pipe 22 .

In this embodiment, through the first liquid outlet pipe 21 and the second liquid outlet pipe 22 provided, the first liquid outlet pipe 21 and the second liquid outlet pipe 22 are connected to the external tube, and the syringe containing the medicinal solution 1 is installed on the fixed tube 2, and by rotating the knob 31, the first liquid outlet pipe 21 or the second liquid outlet pipe 22 is controlled to communicate with the corresponding external tube, and then pushes and injects the liquid medicine to realize flushing of the corresponding tube. Pipe operation, easy to use, solves the problem that the general flushing device can only flush one pipe at a time when it is in use, and the staff needs to take up or take off the syringe repeatedly, which brings more inconvenience to the staff question.

Example 2

As the second embodiment of the present invention, in order to ensure that the fixation between the injection tube 12 and the fixed tube 2 is more firm, the inventors made improvements to the syringe housing 10 and the fixed tube 2, as a preferred embodiment, as shown in the figure 5 to 9, the top surface of the syringe housing 10 provided with the injection tube 12 is provided with four snap-fitting devices 4 arranged at equal intervals in a ring, and the snap-fitting devices 4 include a The fixed block 40 on the surface is provided with a rubber block 41 on the side of the fixed block 40 close to the injection tube 12. The fixed block 40 and the rubber block 41 are integrally formed, and the fixed block 40 and the rubber block 41 are all made of Made of rubber material, the rubber material has good elasticity and can be deformed to a certain extent, so that the rubber block 41 can be snapped into the corresponding slot 50 conveniently;

Fixed pipe 2 is provided with fixed ring 5 on the pipe body near its bottom position, and fixed ring 5 and fixed pipe 2 are integrally formed to ensure that its structure is firmer and not easily damaged; the upper surface of fixed ring 5 is provided with multiple The card slots 50 arranged at equal intervals in a ring and connected to the outside world, and the rubber blocks 41 and the corresponding card slots 50 are engaged with each other. Specifically, since the fixed blocks 40 and the rubber blocks 41 have better Elasticity, the size of the rubber block 41 is compatible with the size of the draw-in groove 50, when the fixed ring 5 is pressed on the syringe housing 10, the bottom surface of the fixed ring 5 will be against the inclined side on the rubber block 41, and then Continue to press down on the fixing ring 5, the fixing ring 5 will push the fixing block 40 and the rubber block 41 toward the outside, at this time, the fixing block 40 and the rubber block 41 will be deformed toward the outside, when the fixing ring 5 just When pressed on the syringe housing 10, at this time, the fixed block 40 and the rubber block 41 will return to their original shape, and the vertical section of the rubber block 41 can be smoothly inserted into the slot 50.

The tube wall of the fixed tube 2 is also provided with a gasket 6, the interference fit between the gasket 6 and the drug injection tube 12 increases the sealing between the fixed tube 2 and the drug injection tube 12, so that the fixed tube 2 and the drug injection tube There will be no liquid leakage between the tubes 12;

The fixed pipe 2 is also provided with an insertion pipe 60, and a plurality of ring-like protrusions 61 arranged at equal intervals are closely bonded between the insertion pipe 60 and the wall of the fixed pipe 2, and one side of the protrusions 61 is closely bonded to the On the insertion tube 60, the other side of the projection 61 is tightly bonded to the fixed tube 2 to ensure a firmer structure; the insertion connection between the insertion tube 60 and the injection tube 12, and the outer surface of the insertion tube 60 is in line with the injection tube 12. The tube wall of the drug tube 12 is closely attached to further ensure a good seal between the insertion tube 60 and the drug injection tube 12 .

In this embodiment, the clamping device 4 and the clamping groove 50 are provided to make the fixing between the fixed tube 2 and the injection tube 12 more firm, and the sealing gasket 6 and the insertion tube 60 are provided to ensure that the fixed tube 2 and the drug injection tube 12 have a good seal, and there is no liquid leakage, which solves the problem that the fixed tube is prone to fall off from the drug injection tube when the general tube flushing device is in use.

Example 3

As a third embodiment of the present invention, in order to ensure that the ends of the first liquid outlet pipe 21 and the second liquid outlet pipe 22 will not be directly exposed outside, the inventors made the first liquid outlet pipe 21 and the second liquid outlet pipe 22 Improvement is made, as a preferred embodiment, as shown in Figure 10 and Figure 11, the end pipe bodies of the first liquid outlet pipe 21 and the second liquid outlet pipe 22 are all provided with a sealing cover 7, and the surface of the sealing cover 7 is provided with Anti-slip layer 70 is arranged to increase the frictional force between sealing cover 7 and fingers, so that rotating sealing cover 7 is smoother and less likely to slip; sealing cover 7 is provided with an annular threaded groove 71 communicating with the outside world, the first Outlet pipe 21 and the end pipe body of the second liquid outlet pipe 22 are all provided with external threads, and the external threads on the end pipe bodies of the first liquid outlet pipe 21 and the second liquid outlet pipe 22 are connected with the corresponding sealing cap 7. The threaded connection of the annular thread groove 71 is convenient for unscrewing the sealing cover 7 when needed, and it is also convenient for screwing the sealing cover 7 into the first liquid outlet pipe 21 or the second liquid outlet pipe 22 when not in use.

In this embodiment, the top wall of the annular threaded groove 71 is also tightly bonded with a vertical post 72, and the post 72 on one of the sealing covers 7 is plugged and fitted with the first outlet pipe 21. , the inserting post 72 on the other sealing cover 7 and the second liquid outlet pipe 22 are inserted and matched to realize the sealing of the first liquid outlet pipe 21 and the second liquid outlet pipe 22, and the surface of the inserting post 72 is set There is a sealing layer 721, which is an interference fit between the sealing layer 721 and the pipe wall of the first liquid outlet pipe 21 and the pipe wall of the second liquid outlet pipe 22, so that bacteria will not enter the first liquid outlet pipe 21 and the second liquid outlet pipe. The inside of the second outlet pipe 22 can effectively reduce the growth of bacteria.

In this embodiment, through the provided sealing cover 7, when not in use, the corresponding sealing cover 7 is screwed into the first liquid outlet pipe 21 or the second liquid outlet pipe 22, and the insertion post 72 is ensured to be inserted into the corresponding On the first liquid outlet pipe 21 or the second liquid outlet pipe 22, so as to realize the sealing of the first liquid outlet pipe 21 and the second liquid outlet pipe 22, which can effectively reduce the growth of bacteria and solve the problem of the common flushing device The upper pipeline is not provided with a sealing cover, which is likely to cause bacterial growth and affect the health of patients.

Example 4

As the fourth embodiment of the present invention, in order to ensure that the injection tube 12 on the syringe 1 will not be directly exposed when not in use, the inventors have made improvements to the injection tube 12, as a preferred embodiment, as shown in the figure 12 and Figure 13, the drug injection tube 12 is provided with a sleeve cover 8, and the sleeve cover 8 is provided with an annular groove 80 communicating with the outside world. 8. The drug injection tube 12 is protected inside, which can effectively avoid the situation that the drug injection tube 12 is directly exposed to cause bacterial growth.

In this embodiment, the surface of the cover 8 is provided with anti-skid stripes 81 , which is beneficial to increase the friction between the fingers and the cover 8 , making it difficult to slip when holding the cover 8 .

In this embodiment, through the set cover 8, when the syringe 1 is removed from the fixed tube 2, the cover 8 can be placed on the injection tube 12 of the syringe 1, thereby avoiding the direct exposure of the injection tube 12 Bacterial growth is caused outside, which solves the problem that the syringe on the general flushing device lacks a protective cover, which easily causes the 12 parts of the injection tube to be exposed and polluted by bacteria.

Before using the safe closed chemotherapy flushing device of the present invention, remove the cover 8 on the drug injection tube 12, use the syringe 1 to suck the corresponding flushing drug solution, and press the fixing ring 5 after the drug solution is sucked. Close on the syringe housing 10, make the rubber block 41 snap into the slot 50, and ensure that the insertion tube 60 is inserted into the injection tube 12, then remove the sealing cover 7, and connect the first liquid outlet tube 21 and the second tube Two liquid outlet pipes 22 are connected with external indwelling pipelines;

When in use, determine which external tube needs to be flushed, and then turn the knob 31 until the corresponding first liquid hole 302 is connected to the first liquid outlet pipe 21, or the second liquid hole 303 is connected to the corresponding The second liquid outlet pipe 22 of the syringe is connected, and then the push handle 13 is injected. At this time, the piston 131 moves along with the movement of the push handle 13, so as to push out the liquid medicine in the syringe housing 10, and the liquid medicine after pushing out will enter into the In the corresponding first liquid outlet pipe 21 or second liquid outlet pipe 22, flushing of external pipes is realized, which is convenient to operate and solves the problem that only one pipe can be flushed at a time when the general pipe flushing device is in use. Flushing the tube requires the staff to repeatedly take up or take off the syringe, which brings more inconvenience to the staff.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and those described in the above-mentioned embodiments and description are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. a kind of safety closes chemotherapy tube flushing device, including syringe (1), it is characterised in that: the syringe (1), which is equipped with, fixes It manages (2), the end of the fixing pipe (2) is equipped with check valve (20), and the check valve (20) is equipped with the first outlet tube (21), institute The first outlet tube (21) are stated equipped with the second outlet tube (22), first outlet tube (21) is equipped with threeway regulating device (3).

2. safety according to claim 1 closes chemotherapy tube flushing device, it is characterised in that: first outlet tube (21) and institute It states the second outlet tube (22) to be an integral molding structure, first outlet tube (21) collectively forms with second outlet tube (22) One complete tee tube.

3. safety according to claim 1 closes chemotherapy tube flushing device, it is characterised in that: the syringe (1) includes injection Device shell (10), the surface of the syringe shell (10) are equipped with the quarter being arranged along the syringe shell (10) length direction It spends line (11), the top of the syringe shell (10) is equipped with medicine-pouring pipe (12), outside the medicine-pouring pipe (12) and the syringe Shell (10) is an integral molding structure, and the medicine-pouring pipe (12) storage chamber internal with the syringe shell (10) is connected, Pressing handle (13) is equipped in the syringe shell (10), the top of pressing handle (13) is equipped with piston (131), described It is slidably connected between piston (131) and the syringe shell (10), the piston (131) and the pressing handle (13) are one Forming structure.

4. safety according to claim 3 closes chemotherapy tube flushing device, it is characterised in that: the medicine-pouring pipe (12) with it is described solid It is mating between fixed pipe (2).

5. safety according to claim 1 closes chemotherapy tube flushing device, it is characterised in that: the pipe of first outlet tube (21) Wall is equipped with the threaded hole (211) being connected with the external world, threaded hole described in face on the tube wall of first outlet tube (21) (211) position is equipped with the first through hole (212) being connected with the external world, the first through hole (212) and second outlet tube (22) it is connected.

6. safety according to claim 5 closes chemotherapy tube flushing device, it is characterised in that: threeway regulating device (3) packet It includes and closely bonds the rubber column (30) on the first outlet tube (21) tube wall and be arranged in first outlet tube (21) External knob (31), the position of threaded hole (211) described in the interior face of the rubber column (30) be equipped with horizontal setting and with The second through-hole (301) that the external world is connected, second through-hole (301), the threaded hole (211) and the first through hole (212) three is arranged concentrically and is interconnected each other, second through-hole (301) of close threaded hole (211) Hole wall is equipped with the first liquid-passing hole (302) being connected to up and down, first liquid-passing hole (302) and the first outlet tube (21) phase Connection, the bottom hole wall close to second through-hole (301) of the first through hole (212) are equipped with the to be connected with the external world Two liquid-passing holes (303), the annular side of the knob (31) are equipped with several anti-skid bulges annularly equidistantly arranged (311), the position of threaded hole (211) described in face is equipped with screw rod (312) on the knob (31), and the screw rod (312) passes through The threaded hole (211) is simultaneously threadedly coupled between the threaded hole (211), and it is convex that the end of the screw rod (312) is equipped with sealing Column (313), the sealing pillar (313) are located at that second through-hole (301) is internal, the size of sealing pillar (313) with The size of second through-hole (301) is adapted.

7. safety according to claim 6 closes chemotherapy tube flushing device, it is characterised in that: the length of sealing pillar (313) Degree is greater than the aperture of first liquid-passing hole (302), the aperture of second liquid-passing hole (303) and first liquid-passing hole (302) the sum of the minimum range between second liquid-passing hole (303).

8. safety according to claim 4 closes chemotherapy tube flushing device, it is characterised in that: be equipped with the note of medicine-pouring pipe (12) The top surface of emitter shell (10) is equipped with multiple clamping apparatus (4) annularly equidistantly arranged, and the clamping apparatus (4) includes The fixed block (40) on the syringe shell (10) top surface is closely bonded, the fixed block close to the medicine-pouring pipe (12) (40) side is equipped with rubber fixture block (41).

9. safety according to claim 8 closes chemotherapy tube flushing device, it is characterised in that: the fixing pipe (2) is close to its bottom The tube body of portion position is equipped with fixed ring (5), be equipped in the upper surface of the fixed ring (5) it is multiple it is annular in shape equidistantly arrange and The card slot (50) being connected with the external world, is engaged by clamping between the rubber fixture block (41) and the corresponding card slot (50).

10. safety according to claim 4 closes chemotherapy tube flushing device, it is characterised in that: on the tube wall of the fixing pipe (2) It is additionally provided with gasket (6), is interference fitted between the gasket (6) and the medicine-pouring pipe (12), also set in the fixing pipe (2) Have insertion pipe (60), closely bonded between the insertion pipe (60) and the tube wall of the fixing pipe (2) it is multiple it is annular in shape etc. between Convex block (61) away from arrangement, it is mating between the insertion pipe (60) and the medicine-pouring pipe (12).