Push injection device for picc catheter thrombolysis

Abstract

The utility model provides a pushing and injecting device for picc catheter thrombolysis, which belongs to the field of medical equipment and comprises a three-way connector, a side pipe opening of the three-way connector is connected with a liquid guide injector through a metering component, a straight pipe opening of the three-way connector is connected with an evacuation injector, and the other straight pipe opening of the three-way connector is fixedly connected with a blocking pipe. Protection assemblies are arranged on the two sides of the three-way connector. The two sides of a three-way connector are clamped with two mounting grooves, a control switch is inserted into a through hole in a penetrating mode, and a liquid guide injector and an evacuation injector are clamped with a second connecting groove and a first connecting groove respectively, so that the structure is conveniently and preliminarily clamped and fixed with two L-shaped blocks, a plurality of limiting pins are inserted into a plurality of inserting holes and hole grooves, and the two L-shaped blocks are inserted into the limiting pins; therefore, the push injection structure is further protected and installed, integral structure integration is achieved, the two observation windows are matched to facilitate observation of the internal injection amount and the evacuation distance, and meanwhile germ pollution caused by falling can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a push injection device for PICC catheter thrombolysis. Background Art

[0002] A common method for treating intravascular thrombosis in clinical practice during catheter-contact thrombolysis surgery is to insert a thrombolytic catheter with a side hole into the thrombus, and directly inject the thrombolytic drug into the thrombus to play a role in dissolving the thrombus. When administering the thrombolytic drug, a certain pressure injection is required to ensure that the drug solution flows out of the side holes of the thrombolytic catheter throughout the entire process. A PICC thrombolytic device disclosed in the application number CN201520540.63.4 is recorded to include a three-way connector and two fixed wings. The fixed wings are desensitizing tapes. The first port of the three-way connector is connected to the device. The device is connected to a syringe containing thrombolytic solution, the second port is connected to one end of a normally closed butterfly valve, the third port is connected to a PICC catheter, and the other end of the normally closed butterfly valve is connected to a negative pressure pump for generating negative pressure. The device can save manpower and improve thrombolysis efficiency, but the device still has the following defects in actual use: the tube dissolving method currently used for the case of complete tube blockage can easily cause the three-way joint to fall off between the structure, and the injection amount of the thrombolytic drug cannot be accurately measured. Therefore, it is necessary to design a practical PICC catheter thrombolysis push injection device. Utility Model Content

[0003] The utility model aims to provide a push injection device for PICC catheter thrombolysis to solve the problems raised by the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a push injection device for thrombolysis of a PICC catheter, comprising a three-way joint, a side pipe port of the three-way joint is installed and connected with a liquid-guiding syringe through a metering component, a straight pipe port of the three-way joint is installed and connected with an evacuation syringe, another straight pipe port of the three-way joint is fixedly connected with a blocking pipe, and protective components are provided on both sides of the three-way joint;

[0005] The metering assembly includes a first joint fixedly connected to the side pipe opening of the three-way joint, the top of the first joint is fixedly connected to the bottom of the meter, the top of the meter is provided with a second joint, the top of the second joint is fixedly connected to the bottom of the liquid-guiding syringe, the surface of the meter is engaged with the mounting hole provided on the top of the mounting block, the other side of the mounting block is provided with a wire, and the wire is electrically connected to one end of the display;

[0006] The protective component includes two L-shaped blocks installed on both sides of the three-way joint, and installation grooves are provided at the bottom of the opposite sides of the two L-shaped blocks, and a through hole is provided on the inner wall of one of the installation grooves, and a first connecting groove is provided on the edge of the inner wall of the two installation grooves, and a first connecting groove is provided on the edge of the other side of the inner wall of the installation groove, and a second connecting groove is provided on the top of the opposite sides of the two L-shaped blocks, and a second connecting groove is provided on the edge of the inner wall of the second connecting groove, and a card groove is provided on the edges of the inner walls of the first connecting groove and the second connecting groove.

[0007] As a preferred solution of the utility model: a control switch is provided in the middle of the surface of the three-way joint, the surface of the control switch is interlaced and connected with the inner wall of the through hole, and the two sides of the three-way joint are snap-connected with the inner walls of the two installation grooves.

[0008] As a preferred solution of the utility model: the two sides of the installation block are snap-connected with the inner walls of the two slots, and the surfaces of the first joint and the second joint are snap-connected with the two first connection slots and the second connection slots respectively.

[0009] As a preferred solution of the utility model: the inner wall of the first connecting groove is snap-connected with the surface of the evacuating syringe, and the inner wall of the second connecting groove is snap-connected with the surface of the liquid guiding syringe.

[0010] As a preferred solution of the utility model: a plurality of holes are formed on the surface of one of the L-shaped blocks, and the inner walls of the plurality of holes are threadedly connected with a plurality of jacks formed on the surface of the other L-shaped block through limit pins.

[0011] As a preferred solution of the utility model: the tops of the two L-shaped blocks are provided with a clamping groove, and the inner walls of the two clamping grooves are clamped and connected with the clamping plate provided at the bottom of the display.

[0012] As a preferred solution of the utility model: two through grooves are provided on the surface of one of the L-shaped blocks, and a plurality of positioning holes are provided on the edges of the inner walls of the two through grooves, and the plurality of positioning holes are snap-connected with a plurality of positioning heads provided on the surfaces of the two observation windows.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The mounting block is engaged with the two slots to fix it to the two L-shaped blocks, the first connector is connected to the side pipe port of the three-way connector, and the second connector is connected to the bottom of the liquid guide syringe. The thrombolytic agent flows through the meter, thereby measuring the flow of the dose, and the data is displayed on the display surface in conjunction with the wire, so as to achieve accurate introduction of the dose of the thrombolytic drug;

[0015] (2) By engaging the two sides of the three-way connector with the two mounting grooves, the control switch is inserted into the through hole, and the liquid introduction syringe and the evacuation syringe are engaged with the second connection groove and the first connection groove respectively, it is convenient to initially engage and fix the structure with the two L-shaped blocks, and insert a plurality of limit pins into a plurality of jacks and hole grooves, so as to further install the push injection structure protection, realize the overall structural integration, and cooperate with two observation windows to facilitate the observation of the internal injection volume and evacuation distance, and at the same time, it can prevent the falling off and causing bacterial contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is one of the structural schematic diagrams of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the metering component of the utility model;

[0019] Figure 4 This is a schematic diagram of the protective component structure of the utility model.

[0020] In the figure: 1. three-way connector; 11. liquid-guiding syringe; 12. evacuating syringe; 13. plugging tube; 14. control switch; 2. metering assembly; 21. first connector; 22. meter; 23. second connector; 24. mounting block; 25. mounting hole; 26. display; 27. snap-in plate; 3. protection assembly; 31. L-shaped block; 32. mounting slot; 33. through hole; 34. first connecting slot; 35. first connecting slot; 36. second connecting slot; 37. second connecting slot; 38. snap-in slot; 39. hole slot; 310. limit pin; 311. jack; 312. snap-in slot; 313. through slot; 314. positioning hole; 315. observation window; 316. positioning head. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4A push injection device for thrombolysis of a PICC catheter comprises a three-way joint 1, a side pipe port of the three-way joint 1 is installed and connected with a liquid-guiding syringe 11 through a metering component 2, a straight pipe port of the three-way joint 1 is installed and connected with an evacuation syringe 12, another straight pipe port of the three-way joint 1 is fixedly connected with a blocking pipe 13, and protective components 3 are arranged on both sides of the three-way joint 1;

[0023] See also Figure 3 The metering assembly 2 includes a first joint 21 fixedly connected to the side pipe opening of the three-way joint 1, the top of the first joint 21 is fixedly connected to the bottom of the meter 22, the top of the meter 22 is provided with a second joint 23, the top of the second joint 23 is fixedly connected to the bottom of the liquid guiding syringe 11, the surface of the meter 22 is engaged with the mounting hole 25 provided at the top of the mounting block 24, and a wire is provided on the other side of the mounting block 24, and the wire is electrically connected to one end of the display 26.

[0024] During specific use: the mounting block 24 is engaged with the two slots 38 to fix it with the two L-shaped blocks 31, the first connector 21 is connected to the side pipe port of the three-way connector 1, and the second connector 23 is connected to the bottom of the liquid-guiding syringe 11. The thrombolytic agent flows through the meter 22 to measure the flowing dose, and the data is displayed on the surface of the display 26 in conjunction with the wire, so as to achieve accurate introduction of the dose of the thrombolytic drug.

[0025] See also Figure 4 The protection component 3 includes two L-shaped blocks 31 installed on both sides of the three-way joint 1. The two L-shaped blocks 31 are each provided with a mounting groove 32 at the bottom of the opposite side. A through hole 33 is provided on the inner wall of one of the mounting grooves 32. The edges of the inner walls of the two mounting grooves 32 are each provided with a first connecting groove 34. The edge of the inner wall of the other side of the mounting groove 32 is provided with a first connecting groove 35. The top of the two L-shaped blocks 31 is each provided with a second connecting groove 36. The edge of the inner wall of the second connecting groove 36 is provided with a second connecting groove 37. The edges of the inner walls of the first connecting groove 35 and the second connecting groove 37 are provided with a card groove 38.

[0026] During specific use: the two sides of the three-way connector 1 are engaged with the two installation grooves 32, the control switch 14 is inserted with the through hole 33, the liquid guide syringe 11 and the evacuation syringe 12 are engaged with the second connecting groove 36 and the first connecting groove 34 respectively, so as to facilitate the preliminary engagement and fixation of the structure with the two L-shaped blocks 31, and insert a plurality of limit pins 310 into a plurality of jacks 311 and hole grooves 39, so as to further install the push injection structure protection and realize the integration of the overall structure, and cooperate with the two observation windows 315 to facilitate the observation of the internal injection volume and evacuation distance, and at the same time avoid falling off and causing bacterial contamination.

[0027] See also Figure 1A control switch 14 is provided in the middle of the surface of the three-way joint 1 , the surface of the control switch 14 is inserted and connected with the inner wall of the through hole 33 , and the two sides of the three-way joint 1 are engaged and connected with the inner walls of the two mounting grooves 32 .

[0028] When in use, the two sides of the three-way connector 1 are engaged with the two mounting grooves 32 , and the control switch 14 is inserted into the through hole 33 , so as to facilitate the installation and fixation of the three-way connector 1 and the two L-shaped blocks 31 .

[0029] See also Figure 4 The two sides of the mounting block 24 are engaged with the inner walls of the two slots 38 , and the surfaces of the first joint 21 and the second joint 23 are engaged with the two first slots 35 and the second slots 37 , respectively.

[0030] During specific use, the two sides of the mounting block 24 engage with the two slots 38 , and the first joint 21 and the second joint 23 engage with the first slot 35 and the second slot 37 respectively, so as to facilitate the installation and fixation of the metering structure and the two L-shaped blocks 31 .

[0031] See also Figure 4 The inner wall of the first connecting groove 34 is engaged with the surface of the evacuating syringe 12 , and the inner wall of the second connecting groove 36 is engaged with the surface of the liquid guiding syringe 11 .

[0032] During specific use, the liquid-guiding syringe 11 and the evacuating syringe 12 are respectively engaged with the second connecting groove 36 and the first connecting groove 34 to prevent the two from falling off and causing bacterial contamination.

[0033] See also Figure 4 A plurality of holes 39 are formed on the surface of one L-shaped block 31 , and the inner walls of the plurality of holes 39 are threadedly connected to a plurality of jacks 311 formed on the surface of the other L-shaped block 31 through stop pins 310 .

[0034] During specific use: insert a plurality of limit pins 310 into a plurality of insertion holes 311 and hole grooves 39, so as to further install the push injection structure protection and realize the integration of the overall structure.

[0035] See also Figure 4 The tops of the two L-shaped blocks 31 are each provided with a snap-in groove 312 , and the inner walls of the two snap-in grooves 312 are snap-connected with the snap-in plate 27 provided at the bottom of the display 26 .

[0036] When in use, the side of the clamping plate 27 is clamped with the inner walls of the two clamping grooves 312 , so as to facilitate the installation and fixation of the display 26 and the two L-shaped blocks 31 .

[0037] See also Figure 4Two through slots 313 are formed on the surface of one of the L-shaped blocks 31 , and a plurality of positioning holes 314 are formed on the edges of the inner walls of the two through slots 313 . The plurality of positioning holes 314 are engaged with a plurality of positioning heads 316 formed on the surfaces of the two observation windows 315 .

[0038] During specific use, the positioning heads 316 on the two observation windows 315 are engaged with the positioning holes 314 on the inner wall edges of the two through grooves 313, so as to facilitate the installation and fixation of the two observation windows 315 and the L-shaped block 31, thereby facilitating the observation of the internal injection volume and the evacuation distance.

[0039] When in use, the mounting block 24 is engaged with the two slots 38, so that it is installed and fixed with the two L-shaped blocks 31, the first joint 21 is connected to the side pipe port of the three-way joint 1, and the second joint 23 is connected to the bottom of the liquid-guiding syringe 11. The thrombolytic agent flows through the meter 22, so that the flowing dose is measured, and the data is displayed on the surface of the display 26 with the help of the wire, so as to achieve the accurate introduction of the dose of the thrombolytic drug; the two sides of the three-way joint 1 are engaged with the two mounting slots 32, and the control switch 14 is inserted with the through hole 33, and the liquid-guiding syringe 11 and the evacuation syringe 12 are engaged with the second connection slot 36 and the first connection slot 34 respectively, so as to facilitate the preliminary engagement and fixing of the structure with the two L-shaped blocks 31, and a plurality of limit pins 310 are inserted into a plurality of jacks 311 and the hole slots 39, so as to further install the push structure protection, realize the integration of the overall structure, and cooperate with the two observation windows 315 to facilitate the observation of the internal injection volume and evacuation distance, and at the same time, it can avoid falling off and causing bacterial contamination.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A push injection device for PICC catheter thrombolysis, characterized in that: It comprises a three-way joint (1), wherein a side pipe opening of the three-way joint (1) is installed and connected to a liquid-guiding syringe (11) via a metering component (2), one straight pipe opening of the three-way joint (1) is installed and connected to an evacuation syringe (12), and the other straight pipe opening of the three-way joint (1) is fixedly connected to a blocking pipe (13), and protective components (3) are provided on both sides of the three-way joint (1); The metering assembly (2) comprises a first joint (21) fixedly connected to a side pipe opening of a three-way joint (1); the top of the first joint (21) is fixedly connected to the bottom of a meter (22); a second joint (23) is provided on the top of the meter (22); the top of the second joint (23) is fixedly connected to the bottom of a liquid-guiding syringe (11); the surface of the meter (22) is snap-fitted with a mounting hole (25) provided on the top of a mounting block (24); a wire is provided on the other side of the mounting block (24); the wire is electrically connected to one end of a display (26); The protection assembly (3) comprises two L-shaped blocks (31) mounted on both sides of the three-way joint (1); a mounting groove (32) is provided below the opposite side of the two L-shaped blocks (31); a through hole (33) is provided on the inner wall of one of the mounting grooves (32); a first connecting groove (34) is provided on the edge of the inner wall of the two mounting grooves (32); a first connecting groove (35) is provided on the edge of the other side of the inner wall of the mounting groove (32); a second connecting groove (36) is provided above the opposite side of the two L-shaped blocks (31); a second connecting groove (37) is provided on the edge of the inner wall of the second connecting groove (36); and a clamping groove (38) is provided on the edges of the inner walls of the first connecting groove (35) and the second connecting groove (37).

2. A PICC catheter thrombolysis push injection device according to claim 1, characterized in that: A control switch (14) is provided in the middle of the surface of the three-way joint (1), the surface of the control switch (14) is interlaced and connected with the inner wall of the through hole (33), and the two sides of the three-way joint (1) are snap-fitted and connected with the inner walls of the two installation grooves (32).

3. A PICC catheter thrombolysis push injection device according to claim 1, characterized in that: The two sides of the mounting block (24) are snap-connected with the inner walls of the two slots (38), and the surfaces of the first joint (21) and the second joint (23) are snap-connected with the two first connection slots (35) and the second connection slots (37), respectively.

4. A PICC catheter thrombolysis push injection device according to claim 1, characterized in that: The inner wall of the first connecting groove (34) is snap-fitted and connected to the surface of the evacuating syringe (12), and the inner wall of the second connecting groove (36) is snap-fitted and connected to the surface of the liquid guiding syringe (11).

5. A PICC catheter thrombolysis push injection device according to claim 1, characterized in that: A plurality of hole grooves (39) are provided on the surface of one of the L-shaped blocks (31), and the inner walls of the plurality of hole grooves (39) are threadedly connected to a plurality of insertion holes (311) provided on the surface of the other L-shaped block (31) through limiting pins (310).

6. A PICC catheter thrombolysis push injection device according to claim 1, characterized in that: The tops of the two L-shaped blocks (31) are each provided with a snap-fitting groove (312), and the inner walls of the two snap-fitting grooves (312) are snap-fitted and connected with a snap-fitting plate (27) provided at the bottom of the display (26).

7. A PICC catheter thrombolysis push injection device according to claim 1, characterized in that: Two through grooves (313) are provided on the surface of one of the L-shaped blocks (31), and edges of the inner walls of the two through grooves (313) are provided with a plurality of positioning holes (314), which are engaged and connected with a plurality of positioning heads (316) provided on the surfaces of the two observation windows (315).

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