Automatic central venous catheter thrombolysis kit

Abstract

The utility model discloses an automatic central venous catheter thrombolysis suite, which relates to the technical field of medical auxiliary medical instruments and comprises a ball component, the left end of the ball component is connected with a central venous catheter body, the top of the ball component is provided with a straight-through rotary clip-off device component, and the right end of the ball component is connected with an extension tube. A mounting seat is mounted at the end, away from the ball assembly, of the extension tube, an injector assembly is placed at the top of the mounting seat, the left end of the injector assembly is connected with the right end of the extension tube, and a pull plate is mounted at the end, away from the extension tube, of the injector assembly. According to the central venous catheter, the straight-through rotary clamping device assembly, the extension tube, the central venous catheter body, the reserved groove body, the pull plate, the injector assembly, the shell, the gear, the driving motor and the toothed plate are arranged in a matched mode, so that the reserved groove body can automatically reciprocate left and right, manual operation of nurses is not needed, time and labor are saved, and the working efficiency is improved. And the conduit dredging speed of the kit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary medical equipment, in particular to an automatic central venous catheter thrombolysis kit. Background Art

[0002] Central venous catheters, peripherally inserted central catheters, and infusion ports are placed in the superior vena cava at the end, with a long retention time, safety and reliability. Pipeline blockage is one of the common clinical complications. The blockage components are mostly thrombi and fibrin sheaths. The incidence of drug blockage is relatively low. Once the catheter is blocked, chemical thrombolysis is often used. Currently, chemical thrombolysis is mostly performed in clinical practice using drugs such as urinary heparin, kinase, and streptokinase. The current recanalization method is to use a syringe to aspirate the thrombolytic drug, connect the three-way connection, connect the aspirated drug on one side and the empty syringe on the other side, and adjust the three-way switch after aspirating the empty syringe to form a negative pressure, so that the thrombolytic solution is automatically aspirated into the intravenous catheter, retained for a period of time to exert the thrombolytic effect, and then repeatedly aspirated until blood returns, indicating that the pipeline is restored.

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in the technology. The current clinical operation method may need to repeat the above operation dozens of times. The operation is frequent and is mostly completed manually by female nurses. It also requires a lot of effort during the operation, and it may even be difficult to unclog the catheter in the end. Utility Model Content

[0004] In order to improve the problem that the above-mentioned clinical operation method may need to repeat the above-mentioned operation dozens of times, the operation is frequent, and is mostly completed manually by female nurses, and a lot of effort is needed during the operation, and it is even difficult to unclog the catheter in the end, the utility model provides an automatic central venous catheter thrombolysis kit.

[0005] The utility model provides an automatic central venous catheter thrombolysis kit, which adopts the following technical solutions:

[0006] An automatic central venous catheter thrombolysis kit comprises a ball assembly, the left end of the ball assembly is connected to a central venous catheter body, the top of the ball assembly is provided with a straight-through rotating clamp assembly, the right end of the ball assembly is connected to an extension tube, the end of the extension tube away from the ball assembly is equipped with a mounting seat, a syringe assembly is placed on the top of the mounting seat, the left end of the syringe assembly is connected to the right end of the extension tube, a pull plate is installed at the end of the syringe assembly away from the extension tube, a reserved groove body is clamped on the outer side of the pull plate, a shell is installed at the bottom of the reserved groove body, a drive motor is installed on the inner top wall of the shell, a gear is installed at the power output end of the drive motor, the bottom of the gear is meshingly connected with a tooth plate, and through holes matching the tooth plate are opened on both sides of the shell.

[0007] By adopting the above technical solution, the kit is placed at the patient's bedside or other suitable place, and it is confirmed that all components have been properly connected. At the same time, the pull plate is clamped through the reserved groove, and then the drive motor is started. When the drive motor works, it drives the gear to rotate. Since the gear is meshed with the tooth plate, the gear rotates and drives the shell to move to the right along the tooth plate. The shell moves to the right and drives the reserved groove to move to the right. The reserved groove moves to the right and drives the pull plate to move to the right and pulls the syringe assembly, so that a vacuum is formed inside. At this time, the central venous catheter body is deformed under negative pressure, and a small amount of central venous catheter body is deformed. The liquid is drawn into the interior of the sphere assembly. After a pause of a few seconds, the control drive motor stops working, and the atmospheric pressure presses the reserved slot and syringe assembly back to their original positions. At the same time, the central venous catheter body recovers its original shape under the elasticity of its own material and absorbs a small amount of thrombolytic agent inside the sphere assembly. The above operation is completed once. After a pause of a few seconds, the above-mentioned suction operation is repeated until blood is drawn back from the sphere assembly, thereby enabling the reserved slot to automatically reciprocate left and right. There is no need for nurses to perform manual operation, which saves time and effort and improves the speed of catheter unblocking of the kit.

[0008] Optionally, the spherical assembly includes a hollow ball, the left end of the hollow ball is connected to a first male end, the right end of the first male end extends into the geometric center of the hollow ball, the right end of the hollow ball is connected to a first female end, the top of the hollow ball is connected to a second female end, a first sealing cap is provided at the connection between the first male end and the central venous catheter body, and a second sealing cap is provided at the connection between the first female end and the extension tube.

[0009] By adopting the above technical solution, the first sealing cap is provided so that the first male end and the central venous catheter body are sealed when connected, and the second sealing cap is provided so that the first female end and the extension tube are sealed when connected.

[0010] Optionally, the straight-through rotary clamp assembly includes a straight-through rotary clamp body, the bottom of the straight-through rotary clamp body is connected to a second male end, the top of the straight-through rotary clamp body is connected to a third female end, a third sealing cap is provided at the connection between the second male end and the second female end, and a fourth sealing cap is provided on the top of the third female end.

[0011] By adopting the above technical solution, the third sealing cap is provided so that the second male end and the second female end are sealed when connected, and the fourth sealing cap is provided so that the top of the third female end is sealed.

[0012] Optionally, the syringe assembly includes a barrel, the left end of which is connected to the right end of the extension tube, a piston is installed inside the barrel, the right end of the piston is connected to a pull rod, and the end of the pull rod facing away from the piston extends out of the barrel and is fixedly connected to the left end of the pull plate.

[0013] By adopting the above technical solution, the pull rod moves to the right, driving the piston to move to the right in the cylinder, so that a vacuum is formed in the cylinder.

[0014] Optionally, a limit block is symmetrically installed at one end of the mounting seat close to the extension tube, and a limit clamping seat is provided at one end of the mounting seat away from the limit block, the limit clamping seat includes a fixing rod, and the fixing rod is installed on the surface of the mounting seat close to one end of the cylinder, an L-shaped clamping seat is sleeved on the outer side of the fixing rod, and an inner cavity of the L-shaped clamping seat is provided with a movable groove that slides with the fixing rod, a positioning spring is connected between the right end of the fixing rod and the inner wall of the movable groove, and a groove body is symmetrically installed at one end of the limit clamping seat away from the limit block.

[0015] By adopting the above technical solution, the cylinder can be fixed and limited, thereby avoiding the cylinder from slipping during use.

[0016] Optionally, a photoelectric sensor is provided on the first male end, and a controller, Bluetooth and a buzzer alarm are installed on the left side of the mounting base from top to bottom. The output end of the photoelectric sensor is electrically connected to the input end of the Bluetooth, the output end of the Bluetooth is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the input ends of the buzzer alarm and the gear, respectively.

[0017] By adopting the above technical solution, when the permeability of the liquid in the first male end changes, the photoelectric sensor is triggered, and the signal is transmitted to the controller via Bluetooth. The controller controls the gear to stop the suction action. At the same time, the controller controls the buzzer alarm to sound an alarm to remind medical workers to check the thrombolysis situation.

[0018] Optionally, a buffer assembly is provided at the left end of the bottom of the tooth plate, and the buffer assembly includes a fixed seat, the fixed seat is installed at the left end of the bottom of the tooth plate, the inner wall of the fixed seat is connected to a return spring, a movable block is installed at the right end of the return spring, a movable column is connected to the right end of the movable block, and the end of the movable column away from the movable block extends out of the fixed seat and is installed with a stop block.

[0019] By adopting the above technical solution, when the reserved slot moves to the left, it drives the drive motor to move to the left. The drive motor contacts the block and drives the slider to move to the left through the movable column, so that the reset spring is compressed, thereby having a certain buffering effect on the drive motor.

[0020] Optionally, a spring clip is provided at the bottom of the hollow ball.

[0021] By adopting the above technical solution, the spring clip can be conveniently fixed on a sleeve or other suitable position, thereby facilitating the fixing of the ball assembly.

[0022] In summary, the present invention has at least one of the following beneficial effects:

[0023] Through the coordinated arrangement of the straight-through rotary clamp occluder assembly, the straight-through rotary clamp occluder assembly, the extension tube, the central venous catheter body, the reserved slot, the pull plate, the syringe assembly, the shell, the gear, the drive motor and the gear plate, the reserved slot can automatically reciprocate left and right without the need for manual operation by the nurse, thus saving time and effort and increasing the speed of clearing the catheter with the kit.

[0024] The coordination of the limit clamp, the groove body and the limit block facilitates multiple fixations of the syringe assembly, making the syringe assembly more stable during use and avoiding slippage as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 For the utility model Figure 1 Schematic diagram of the structure at A in the middle;

[0028] Figure 3 For the utility model Figure 1 Schematic diagram of the structure at B in the middle;

[0029] Figure 4 It is a schematic diagram of the connection structure between the limit clamping seat and the mounting seat of the utility model.

[0030] In the figure: 1. spherical body assembly; 101. hollow sphere; 102. first male end; 1021. photoelectric sensor; 103. first female end; 104. second female end; 2. straight-through rotary clamp closure assembly; 201. straight-through rotary clamp closure body; 202. second male end; 203. third female end; 3. extension tube; 4. central venous catheter body; 5. Bluetooth; 6. buzzer alarm; 7. limit clamp; 701. L-shaped clamp; 702. movable groove; 703. positioning spring; 704. fixing rod; 8. spring clamp; 9. groove body; 10. Mounting seat; 11. Reserved slot; 12. Pull plate; 13. Syringe assembly; 1301. Pull rod; 1302. Piston; 1303. Cylinder; 14. Controller; 15. Limit block; 16. First sealing cap; 17. Second sealing cap; 18. Third sealing cap; 19. Fourth sealing cap; 20. Buffer assembly; 2001. Return spring; 2002. Movable block; 2003. Movable column; 2004. Fixed seat; 2005. Stop block; 21. Shell; 22. Gear; 23. Drive motor; 24. Tooth plate; 25. Through hole. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 The utility model is described in further detail.

[0032] Please refer to the attached figure in the instruction manual Figure 1 The utility model provides an embodiment: an automatic central venous catheter thrombolysis kit, including a ball component 1, the left end of the ball component 1 is connected to the central venous catheter body 4, the top of the ball component 1 is provided with a straight-through rotating clamp component 2, the right end of the ball component 1 is connected to the extension tube 3, the ball component 1 includes a hollow ball 101, the left end of the hollow ball 101 is connected to a first male end 102, the right end of the first male end 102 extends into the geometric center of the hollow ball 101, the right end of the hollow ball 101 is connected to a first female end 103, the top of the hollow ball 101 is connected to a second female end 104, the connection between the first male end 102 and the central venous catheter body 4 is provided with a first sealing cap 16, and the connection between the first female end 103 and the extension tube 3 is provided with a second sealing cap 17. The first sealing cap 16 is provided to ensure that the first male end 102 and the central venous catheter body 4 are sealed when connected, and the second sealing cap 17 is provided to ensure that the first female end 103 and the extension tube 3 are sealed when connected.

[0033] Please refer to the attached figure in the instruction manual Figure 1The through-rotation clamp assembly 2 includes a through-rotation clamp body 201, the bottom of the through-rotation clamp body 201 is connected to the second male end 202, the top of the through-rotation clamp body 201 is connected to the third female end 203, a third sealing cap 18 is provided at the connection between the second male end 202 and the second female end 104, and a fourth sealing cap 19 is provided on the top of the third female end 203. The third sealing cap 18 is provided so that the second male end 202 and the second female end 104 are sealed when connected, and the fourth sealing cap 19 is provided so that the top of the third female end 203 is sealed.

[0034] Please refer to the attached figure in the instruction manual Figure 1 A spring clip 8 is provided at the bottom of the hollow ball 101. The spring clip 8 is conveniently fixed to a sleeve or other suitable position, thereby facilitating the fixing of the ball assembly 1.

[0035] Please refer to the attached figure in the instruction manual Figure 1 The end of the extension tube 3 away from the ball assembly 1 is equipped with a mounting seat 10, and a syringe assembly 13 is placed on the top of the mounting seat 10. The left end of the syringe assembly 13 is connected to the right end of the extension tube 3. The end of the syringe assembly 13 away from the extension tube 3 is equipped with a pull plate 12. The syringe assembly 13 includes a cylinder 1303, the left end of the cylinder 1303 is connected to the right end of the extension tube 3, and a piston 1302 is movably installed inside the cylinder 1303. The right end of the piston 1302 is fixedly connected with a pull rod 1301. The end of the pull rod 1301 away from the piston 1302 extends out of the cylinder 1303 and is fixedly connected to the left end of the pull plate 12. The pull rod 1301 moves rightward to drive the piston 1302 to move rightward in the cylinder 1303, so that a vacuum is formed in the cylinder 1303.

[0036] Please refer to the attached figure in the instruction manual Figure 1 and Figure 4 The end of the mounting seat 10 close to the extension tube 3 is symmetrically installed with a limit block 15, and the end of the mounting seat 10 away from the limit block 15 is provided with a limit clamping seat 7, which includes a fixing rod 704, which is installed on the surface of the mounting seat 10 at one end close to the cylinder 1303, and an L-shaped clamping seat 701 is sleeved on the outer side of the fixing rod 704, and an active groove 702 that is slidably matched with the fixing rod 704 is opened in the inner cavity of the L-shaped clamping seat 701, and a positioning spring 703 is connected between the right end of the fixing rod 704 and the inner wall of the active groove 702, and a groove body 9 is symmetrically installed on the end of the limit clamping seat 7 away from the limit block 15. In this way, the cylinder 1303 can be fixed and limited, and the cylinder 1303 can be prevented from slipping during use.

[0037] Please refer to the attached figure in the instruction manual Figure 1 and Figure 3The outer side of the pull plate 12 is clamped with a reserved slot 11, the bottom of the reserved slot 11 is installed with a shell 21, the inner top wall of the shell 21 is fixedly installed with a drive motor 23, the power output end of the drive motor 23 is installed with a gear 22, a photoelectric sensor 1021 is arranged on the first male end 102, and the left side of the mounting seat 10 is installed with a controller 14, a Bluetooth 5 and a buzzer alarm 6 from top to bottom. The output end of the photoelectric sensor 1021 is electrically connected to the input end of the Bluetooth 5, the output end of the Bluetooth 5 is electrically connected to the input end of the controller 14, and the output end of the controller 14 is electrically connected to the buzzer alarm 6 and the input end of the gear 22 respectively. When the permeability of the liquid in the first male end 102 changes, the photoelectric sensor 1021 is triggered, and the Bluetooth 5 transmits the signal to the controller 14, and the controller 14 controls the gear 22 to stop the suction action, and at the same time, the controller 14 controls the buzzer alarm 6 to sound an alarm to remind medical workers to check the thrombolysis situation.

[0038] Please refer to the attached figure in the instruction manual Figure 1 , Figure 2 and Figure 3 The bottom of the gear 22 is meshedly connected with a tooth plate 24, and through holes 25 matching the tooth plate 24 are provided on both sides of the shell 21. The shell 21 is slidably connected with the tooth plate 24. A buffer assembly 20 is provided at the left end of the bottom of the tooth plate 24. The buffer assembly 20 includes a fixed seat 2004, which is installed at the left end of the bottom of the tooth plate 24. A return spring 2001 is connected to the inner wall of the fixed seat 2004, and a movable block 2002 is installed at the right end of the return spring 2001. The right end of the movable block 2002 is connected to a movable column 2003, and the end of the movable column 2003 away from the movable block 2002 extends out of the fixed seat 2004 and is installed with a stopper 2005. When the reserved slot 11 moves to the left, it drives the drive motor 23 to move to the left. The drive motor 23 contacts the block 2005 and drives the slider 2002 to move to the left through the movable column 2003, so that the return spring 2001 is compressed, thereby having a certain buffering effect on the drive motor 23.

[0039] Working principle: When in use, clip the spring clip 8 on the sleeve or other suitable position to facilitate the fixation of the ball assembly 1, confirm that all components are properly connected, properly connect the central venous catheter body 4 with the first male end 102, turn on the photoelectric sensor 1021, and pair with Bluetooth 5. After confirming that there are no obvious bubbles in each passage, install the syringe assembly 13 on the mounting seat 10, and fix the cylinder 1303 by the limit clamp 7, the groove body 9 and the limit block 15 respectively, and at the same time, the pull plate 12 is clamped through the reserved groove body 11.

[0040] Then the drive motor 23 is started, and the drive motor 23 drives the gear 22 to rotate when it works. Since the gear 22 is meshed with the tooth plate 24, the gear 22 drives the housing 21 to move rightward along the tooth plate 24 when it rotates. The housing 21 moves rightward and drives the reserved slot 11 to move rightward. The reserved slot 11 moves rightward and drives the pull plate 12 to move rightward and pull the pull rod 1301. The pull rod 1301 pulls the piston 1302 to move rightward until a vacuum is formed in the cylinder 1303. At this time, the central venous catheter body 4 is in a negative pressure state. The forming process is changed, and a small amount of liquid in the central venous catheter body 4 is extracted into the interior of the hollow ball 101. After a pause of a few seconds, the driving motor 23 is controlled to stop working, and the reserved groove 11 and the piston 1302 are pressed back to their original positions by atmospheric pressure. At the same time, the central venous catheter body 4 restores its original shape under the elasticity of its own material and absorbs a small amount of thrombolytic agent in the hollow ball 101 into it. The above operation is completed once. After a pause of a few seconds, the above suction operation is repeated until blood is sucked out of the first male end 102.

[0041] When the permeability of the liquid in the first male end 102 changes, the photoelectric sensor 1021 is triggered, and then the Bluetooth 5 transmits the signal to the controller 14. The controller 14 controls the drive motor 23 to stop the suction action. At the same time, the controller 14 controls the buzzer alarm 6 to sound an alarm to remind medical workers to check the thrombolysis situation.

[0042] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An automated central venous catheter thrombolysis kit, comprising a ball assembly (1), characterized in that: The left end of the ball assembly (1) is connected to a central venous catheter body (4), a straight-through rotary clamp assembly (2) is arranged on the top of the ball assembly (1), and the right end of the ball assembly (1) is connected to an extension tube (3), an end of the extension tube (3) away from the ball assembly (1) is equipped with a mounting seat (10), a syringe assembly (13) is placed on the top of the mounting seat (10), the left end of the syringe assembly (13) is connected to the right end of the extension tube (3), and the syringe assembly (13) is located away from the ball assembly (1). A pull plate (12) is installed at one end away from the extension tube (3), a reserved slot body (11) is clamped on the outer side of the pull plate (12), a shell (21) is installed at the bottom of the reserved slot body (11), a driving motor (23) is installed on the inner top wall of the shell (21), a gear (22) is installed at the power output end of the driving motor (23), a toothed plate (24) is meshedly connected at the bottom of the gear (22), and through holes (25) matching the toothed plate (24) are opened on both sides of the shell (21).

2. The automatic central venous catheter thrombolysis kit according to claim 1, characterized in that: The sphere assembly (1) comprises a hollow sphere (101), the left end of the hollow sphere (101) is connected to a first male end (102), the right end of the first male end (102) extends into the geometric center of the hollow sphere (101), the right end of the hollow sphere (101) is connected to a first female end (103), the top of the hollow sphere (101) is connected to a second female end (104), a first sealing cap (16) is provided at the connection between the first male end (102) and the central venous catheter body (4), and a second sealing cap (17) is provided at the connection between the first female end (103) and the extension tube (3).

3. The automatic central venous catheter thrombolysis kit according to claim 2, characterized in that: The straight-through rotary clamp assembly (2) comprises a straight-through rotary clamp body (201), the bottom of the straight-through rotary clamp body (201) is connected to a second male end (202), the top of the straight-through rotary clamp body (201) is connected to a third female end (203), a third sealing cap (18) is provided at the connection between the second male end (202) and the second female end (104), and a fourth sealing cap (19) is provided at the top of the third female end (203).

4. The automatic central venous catheter thrombolysis kit according to claim 1, characterized in that: The syringe assembly (13) comprises a cylinder (1303), the left end of which is connected to the right end of the extension tube (3), a piston (1302) is installed inside the cylinder (1303), the right end of the piston (1302) is connected to a pull rod (1301), and the end of the pull rod (1301) facing away from the piston (1302) extends out of the cylinder (1303) and is fixedly connected to the left end of the pull plate (12).

5. The automatic central venous catheter thrombolysis kit according to claim 4, characterized in that: A limit block (15) is symmetrically mounted on one end of the mounting seat (10) close to the extension tube (3); a limit clamping seat (7) is arranged on one end of the mounting seat (10) away from the limit block (15); the limit clamping seat (7) comprises a fixing rod (704); the fixing rod (704) is mounted on one end of the surface of the mounting seat (10) close to the cylinder (1303); an L-shaped clamping seat (701) is sleeved on the outer side of the fixing rod (704); an inner cavity of the L-shaped clamping seat (701) is provided with a movable groove (702) slidably matched with the fixing rod (704); a positioning spring (703) is connected between the right end of the fixing rod (704) and the inner wall of the movable groove (702); and a groove body (9) is symmetrically mounted on one end of the limit clamping seat (7) away from the limit block (15).

6. The automatic central venous catheter thrombolysis kit according to claim 2, characterized in that: A photoelectric sensor (1021) is provided on the first male end (102), and a controller (14), a Bluetooth (5) and a buzzer alarm (6) are installed on the left side of the mounting base (10) from top to bottom. The output end of the photoelectric sensor (1021) is electrically connected to the input end of the Bluetooth (5), the output end of the Bluetooth (5) is electrically connected to the input end of the controller (14), and the output end of the controller (14) is electrically connected to the input ends of the buzzer alarm (6) and the gear (22), respectively.

7. The automatic central venous catheter thrombolysis kit according to claim 1, characterized in that: A buffer assembly (20) is provided at the left end of the bottom of the tooth plate (24), and the buffer assembly (20) comprises a fixed seat (2004), the fixed seat (2004) is mounted at the left end of the bottom of the tooth plate (24), the inner wall of the fixed seat (2004) is connected to a return spring (2001), the right end of the return spring (2001) is mounted to a movable block (2002), the right end of the movable block (2002) is connected to a movable column (2003), and one end of the movable column (2003) facing away from the movable block (2002) extends out of the fixed seat (2004) and is mounted with a stopper (2005).

8. The automatic central venous catheter thrombolysis kit according to claim 2, characterized in that: A spring clip (8) is provided at the bottom of the hollow ball (101).

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