Pre-filled catheter flusher

Abstract

The utility model belongs to the technical field of medical catheter flushers, and particularly relates to a pre-filled catheter flusher which comprises a catheter flushing fluid storage tube, one end of the catheter flushing fluid storage tube is fixedly connected with a connecting plate, a hollow push rod penetrates through the connecting plate, an inner push rod penetrates through the hollow push rod, and the inner push rod is fixedly connected with the catheter flushing fluid storage tube. A threaded connecting ring is embedded in the connecting plate, one end of the inner push rod is fixedly connected with a threaded connecting pipe, and the threaded connecting pipe is in threaded connection with the threaded connecting ring; the situation that when the whole flusher is subjected to the action force of accidental collision, the rubber sealing liquid pushing block moves into an inner cavity of the catheter flushing liquid storage pipe, flushing liquid stored in the catheter flushing liquid storage pipe is extruded outwards or falls off from the interior of the catheter flushing liquid storage pipe is avoided, the stability of the whole flusher is improved, and the service life of the flusher is prolonged. Meanwhile, a good sealing environment can be provided for flushing fluid placed in the catheter flushing fluid storage tube.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical catheter flusher, specifically relates to a pre-filled catheter flusher. BACKGROUND

[0002] With the development of medical instrument manufacturing and medical technology, medical instruments such as indwelling needle, deep vein catheter and central venous catheter are widely used, and through clinical use, many negative problems are caused while bringing convenience, such as backflow caused by being placed in blood vessels, which finally easily causes thrombosis or blockage, becomes an outstanding nursing problem and infusion risk, so medical staff often flushes the catheter through the pre-filled flusher, but the pre-filled catheter flusher currently directly uses pre-filled flushing liquid in the medical injector as the whole flusher, when the catheter needs to be flushed, the internal flushing liquid is pushed out to the outside through the push rod, however, when the whole flusher is accidentally subjected to external force, the push rod may fall from the flushing liquid storage tube or be pushed into the flushing liquid storage tube, causing the flusher to be unusable or the dose of flushing liquid to be insufficient and affecting the flushing of the catheter. SUMMARY

[0003] The utility model provides a pre-filled catheter flusher, which can avoid the situation that the rubber sealing liquid pushing block moves to the inner cavity of the catheter flushing liquid storage tube and the flushing liquid stored in the catheter flushing liquid storage tube is squeezed out to the outside or falls from the inside of the catheter flushing liquid storage tube when the whole flusher is subjected to accidental collision force, improves the stability of the whole flusher, and can provide a good sealing environment for the flushing liquid placed in the inside of the catheter flushing liquid storage tube.

[0004] The utility model provides the following technical scheme: a pre-filled catheter flusher, including catheter flushing liquid storage tube, one end of catheter flushing liquid storage tube is connected with the connecting plate, the inside of connecting plate is penetrated with hollow push rod, the inside of hollow push rod is penetrated with inner push rod, the inside of connecting plate is embedded with screw thread connection ring, one end of inner push rod is connected with screw thread connection pipe, and screw thread connection pipe is connected with screw thread connection ring, the other side of screw thread connection pipe is equipped with rubber sealing liquid pushing block, and rubber sealing liquid pushing block is located in the inside of catheter flushing liquid storage tube, one end of hollow push rod away from catheter flushing liquid storage tube is connected with limit mounting seat, one end of inner push rod is penetrated to the outside of inner push rod, and the outer end of inner push rod is fixedly connected with square adjusting plate, and square adjusting plate is located in the outside of limit mounting seat.

[0005] The threaded connecting pipe is fixedly connected with a rotating connecting seat on one side, and the rotating connecting seat is rotatably connected with a mounting connecting pipe on one side.

[0006] The connecting plate is internally provided with an embedded mounting groove, and the threaded connecting ring is embedded in the embedded mounting groove.

[0007] The limiting mounting seat is internally provided with a square limiting groove, and the square limiting groove is fixedly connected with an anti-skid sealing pad.

[0008] The other end of the catheter flushing liquid storage pipe is fixedly connected with a catheter connecting pipe.

[0009] One end of the catheter connecting pipe is clamped with a sealing cap.

[0010] The threaded connecting ring, the threaded connecting pipe, the inner push rod, the square adjusting plate and the square limiting groove are matched with each other, so that the position of the rubber sealing liquid pushing block can be limited, the rubber sealing liquid pushing block can be prevented from moving into the inner cavity of the catheter flushing liquid storage pipe and the flushing liquid stored in the catheter flushing liquid storage pipe can be prevented from being squeezed out or falling off from the inner cavity of the catheter flushing liquid storage pipe when the whole flusher is subjected to an accidental impact, the stability of the whole flusher is improved, and a good sealing environment can be provided for the flushing liquid placed in the catheter flushing liquid storage pipe.

[0011] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view of the structure of the utility model;

[0013] Figure 2 It is a front view of the structure of the utility model;

[0014] Figure 3 It is a front view of the structure of the utility model Figure 1 A detail enlargement of the A part of the utility model;

[0015] Figure 4 It is a front view of the structure of the utility model Figure 2 A detail enlargement of the B part of the utility model.

[0016] In the figure: 1, the catheter flushing liquid storage tube; 11, connecting plate; 111, embedded installation groove; 112, threaded connection ring; 12, catheter connecting pipe; 13, sealing cap; 2, hollow push rod; 21, rubber sealing push liquid block; 22, limit mounting seat; 23, square limiting groove; 231, anti-skid sealing gasket; 3, threaded connecting pipe; 31, inner push rod; 311, installation connecting pipe; 32, square adjusting plate; 33, rotating connecting seat. DETAILED DESCRIPTION

[0017] Please refer to Figures 1-4 The utility model provides the following technical scheme: including catheter flushing liquid storage tube 1, one end of catheter flushing liquid storage tube 1 is fixedly connected with connecting plate 11, hollow push rod 2 is penetrated in the inside of connecting plate 11, inner push rod 31 is penetrated in the inside of hollow push rod 2, threaded connection ring 112 is embedded in the inside of connecting plate 11, one end of inner push rod 31 is fixedly connected with threaded connecting pipe 3, and threaded connecting pipe 3 is screwed with threaded connection ring 112, one side of threaded connecting pipe 3 is equipped with rubber sealing push liquid block 21, and rubber sealing push liquid block 21 is located in the inside of catheter flushing liquid storage tube 1, one end of hollow push rod 2 fixedly connected with limit mounting seat 22 away from catheter flushing liquid storage tube 1, one end of inner push rod 31 is penetrated to the outside of inner push rod 31, and the outer end of inner push rod 31 is fixedly connected with square adjusting plate 32, and square adjusting plate 32 is located in the outside of limit mounting seat 22.

[0018] In the embodiment: the catheter flushing liquid storage tube 1 is a workpiece for storing flushing liquid in the entire flushing device, the hollow push rod 2 in the catheter flushing liquid storage tube 1 forms an extrusion assembly for extruding the flushing liquid in the catheter flushing liquid storage tube 1 to the outside under the cooperation of the rubber sealing push block 21, the connecting plate 11 located at one end of the catheter flushing liquid storage tube 1 is used to provide a mounting carrier for the threaded connecting ring 112, the inner push rod 31 located in the hollow push rod 2 is used to provide a connection carrier for the threaded connecting tube 3, at this time, the threaded connecting tube 3 forms a limiting assembly for locking the position of the rubber sealing push block 21 under the cooperation of the inner push rod 31, when the entire flushing device is placed, the limiting of the position of the rubber sealing push block 21 by the limiting assembly formed by the threaded connecting tube 3 and the inner push rod 31 can avoid the rubber sealing push block 21 moving into the inner cavity of the catheter flushing liquid storage tube 1 and extruding or falling off the flushing liquid stored in the catheter flushing liquid storage tube 1 to the outside when the entire flushing device is subjected to the force of accidental collision, thereby improving the stability of the entire flushing device, and the square adjusting plate 32 located at the other end of the inner push rod 31 is used to drive the inner push rod 31 to rotate, when it is necessary to flush the catheter by the flushing device, the rotation of the inner push rod 31 can be driven by the square adjusting plate 32, and the rotation of the threaded connecting tube 3 can be driven by the inner push rod 31, so that the locking state between the threaded connecting tube 3 and the threaded connecting ring 112 is released, thereby facilitating the subsequent operation of the flushing work of the catheter, after the threaded connecting ring 112 and the threaded connecting tube 3 are released from the locking state, the square adjusting plate 32 is pushed towards the limiting mounting seat 22, so that one side of the square adjusting plate 32 and one side of the limiting mounting seat 22 are in the same plane, and then the square adjusting plate 32 is further pushed into the interior of the catheter flushing liquid storage tube 1, so that the rubber sealing push block 21 moves in the inner cavity of the catheter flushing liquid storage tube 1 and pushes the flushing liquid in the catheter flushing liquid storage tube 1 outwards during the movement, in addition, the hollow push rod 2 and the threaded connecting tube 3 are not fixed, and the hollow push rod 2 plays a protection role.

[0019] One side of the threaded connecting tube 3 is fixedly connected with a rotating connecting seat 33, one side of the rotating connecting seat 33 is rotationally connected with a mounting connecting tube 311, and one side of the rubber sealing push block 21 is fixedly connected with the mounting connecting tube 311; wherein the rotating connecting seat 33 and the mounting connecting tube 311 form a connecting assembly for mounting the rubber sealing push block 21.

[0020] The inner part of the connecting plate 11 is provided with an embedded mounting groove 111, and the threaded connecting ring 112 is embedded in the inner part of the embedded mounting groove 111; wherein the embedded mounting groove 111 is used to provide a mounting space for the installation of the threaded connecting ring 112.

[0021] The side of the limiting mounting base 22 is provided with a square limiting groove 23, and the square limiting groove 23 is fixedly connected with an anti-skid sealing pad 231 in the inside, and the square adjusting plate 32 is matched with the square limiting groove 23; when the square adjusting plate 32 drives the inner push rod 31 to rotate to complete the unlocking between the threaded connecting pipe 3 and the threaded connecting ring 112, the square adjusting plate 32 is continuously pushed to be displaced to the inside of the square limiting groove 23, at this time, the square limiting groove 23 can limit the square adjusting plate 32, and the hollow push rod 2 can be continuously pushed to the inside of the catheter flushing liquid storage pipe 1 synchronously in the process of continuously pushing the square adjusting plate 32, and the flushing liquid in the catheter flushing liquid storage pipe 1 is discharged to the outside through the rubber sealing liquid pushing block 21.

[0022] The other end of the catheter flushing liquid storage pipe 1 is fixedly connected with a catheter connecting pipe 12, and the one end of the catheter connecting pipe 12 is clampingly connected with a sealing cap 13; wherein the catheter connecting pipe 12 is used for connecting with the catheter outside, and the sealing cap 13 is used for sealing the catheter connecting pipe 12, so that the flushing liquid pre-filled in the catheter flushing liquid storage pipe 1 can be in a sealed state.

[0023] The working principle and use process of the utility model are as follows: when the catheter needs to be flushed through the flusher, the end of the catheter is connected with the catheter connecting pipe 12 first, then the square adjusting plate 32 drives the rotation of the inner push rod 31, and the inner push rod 31 drives the rotation of the threaded connecting pipe 3, so that the locking state between the threaded connecting pipe 3 and the threaded connecting ring 112 is released, when the square adjusting plate 32 drives the rotation of the inner push rod 31 to complete the unlocking between the threaded connecting pipe 3 and the threaded connecting ring 112, the square adjusting plate 32 is continuously pushed to be displaced to the inside of the square limiting groove 23, at this time, the square limiting groove 23 can limit the square adjusting plate 32, and the hollow push rod 2 can be continuously pushed to the inside of the catheter flushing liquid storage pipe 1 synchronously in the process of continuously pushing the square adjusting plate 32, and the flushing liquid in the catheter flushing liquid storage pipe 1 is discharged to the outside through the rubber sealing liquid pushing block 21, and the catheter is flushed.

Claims

1. A prefilled catheter flusher, comprising a catheter flushing liquid storage tube (1), characterized in that: One end of the catheter flushing liquid storage tube (1) is fixedly connected to a connecting plate (11), a hollow push rod (2) is passed through the interior of the connecting plate (11), an inner push rod (31) is passed through the interior of the hollow push rod (2), a threaded connection ring (112) is embedded in the interior of the connecting plate (11), one end of the inner push rod (31) is fixedly connected to a threaded connection pipe (3), and the threaded connection pipe (3) is threadedly connected to the threaded connection ring (112), and the other side of the threaded connection pipe (3) is provided with A rubber sealing push block (21) is provided, and the rubber sealing push block (21) is located inside the catheter flushing liquid storage tube (1); one end of the hollow push rod (2) away from the catheter flushing liquid storage tube (1) is fixedly connected to the limit mounting seat (22); one end of the inner push rod (31) passes through the outside of the inner push rod (31); and the outer end of the inner push rod (31) is fixedly connected to a square adjustment plate (32), and the square adjustment plate (32) is located outside the limit mounting seat (22).

2. A prefilled catheter flusher according to claim 1, characterized in that: One side of the threaded connection pipe (3) is fixedly connected to a rotating connection seat (33), and one side of the rotating connection seat (33) is rotatably connected to a mounting connection pipe (311), and one side of the rubber sealing pusher block (21) is fixedly connected to the mounting connection pipe (311).

3. The prefilled catheter flusher according to claim 1, characterized in that: An embedded installation groove (111) is provided inside the connecting plate (11), and the threaded connecting ring (112) is embedded inside the embedded installation groove (111).

4. The prefilled catheter flusher according to claim 1, characterized in that: A square limiting groove (23) is provided on one side of the limiting mounting seat (22), and a non-slip sealing pad (231) is fixedly connected inside the square limiting groove (23), and the square adjustment plate (32) matches the square limiting groove (23).

5. The prefilled catheter flusher according to claim 1, characterized in that: The other end of the catheter flushing liquid storage tube (1) is fixedly connected to a catheter connecting tube (12).

6. The prefilled catheter flusher according to claim 5, characterized in that: One end of the catheter connecting tube (12) is snap-connected with a sealing cap (13).

Images