Anti-exosmosis chemotherapy dosing device

Abstract

The utility model relates to the technical field of medical instruments, and discloses an anti-exosmosis chemotherapy dosing device which comprises a main body shell, a piston head and a needle head, a liquid storage groove is formed in one side of the main body shell, the piston head is arranged in the liquid storage groove, and a piston rod is arranged on the side, away from a liquid outlet of the liquid storage groove, of the piston head. A mounting groove is formed in the side, away from the liquid storage tank, of the body shell, driving assemblies are arranged inside and outside the mounting groove, and a controller is arranged in the center of the side face of the side, away from the liquid storage tank, of the body shell. According to the anti-exosmosis chemotherapy dosing device, a driving assembly and a driving motor are arranged to work, a driving screw rod can be effectively driven to rotate, the driving screw rod rotates, under the limiting effect of a T-shaped sliding strip, a driving pipe moves towards the side close to the driving motor, a piston head is driven by a connecting plate and a piston rod to synchronously move, and liquid medicine injection of a patient is completed; time and labor are saved, and the problem of liquid medicine leakage caused by difficulty in force control during manual operation of the dosing device is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an anti-extravasation chemotherapy drug delivery device. Background Art

[0002] Oncology, like internal medicine, surgery, obstetrics and gynecology, and pediatrics, is a secondary discipline of clinical medicine. It is divided into internal oncology, tumor radiotherapy, and tumor surgery. Internal oncology is mainly engaged in the internal medical treatment of various benign and malignant tumors.

[0003] During chemotherapy in the Department of Oncology, a drug delivery device is needed to inject chemotherapy drugs into the patient's body. The existing drug delivery device has a relatively simple structure and function, and the staff often manually controls the drug delivery device to inject drugs. Medical staff cannot effectively control the force, which easily causes the drug to seep out along the needle eye, which not only causes a waste of liquid medicine, but is also time-consuming and labor-intensive, increasing the labor intensity of the staff. In addition, the existing drug delivery device does not have a heating function. When injecting drugs in winter, the patient's comfort is poor. Therefore, it is necessary to provide an anti-extravasation chemotherapy drug delivery device to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an anti-extravasation chemotherapy drug delivery device, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: an anti-extravasation chemotherapy drug delivery device, comprising:

[0006] A main body shell, wherein a liquid storage tank is provided on one side of the main body shell;

[0007] A piston head, wherein the piston head is arranged inside the liquid storage tank;

[0008] A needle, the needle being connected to a liquid discharge port of the liquid storage tank through a pipeline;

[0009] A piston rod is arranged on the side of the piston head away from the liquid discharge port of the liquid storage tank, a mounting groove is provided inside the side of the main shell away from the liquid storage tank, a driving assembly is arranged inside and outside the mounting groove, a controller is arranged at the center of the side of the main shell away from the liquid storage tank, a battery is arranged at the middle end of the bottom surface of the mounting groove, and the controller is electrically connected to the battery;

[0010] The driving assembly includes a driving screw rod, and the driving screw rod is rotatably arranged inside the mounting groove.

[0011] Preferably, the driving assembly also includes a driving motor, a driving tube and a connecting plate, the driving motor is electrically connected to the battery, the driving motor is arranged inside the mounting groove close to one end of the needle, one end of the driving screw is fixedly connected to the output end of the driving motor, and the end of the driving screw away from the driving motor is threadedly connected to the driving tube.

[0012] Preferably, the end of the drive tube away from the drive motor passes through the side wall of the installation groove and is connected to the connecting plate, the connecting plate is connected to the piston rod at one end away from the drive tube, a T-shaped slide is fixedly provided on the upper end surface of the drive tube, and the drive tube is slidably connected to the main shell through the T-shaped slide.

[0013] Preferably, a threaded protrusion is fixedly provided at one end of the piston rod away from the piston head, and the threaded protrusion passes through a through hole on the connecting plate and is threadedly connected to a limit nut.

[0014] Preferably, a heating groove is provided inside the main body shell and between the mounting groove and the liquid storage groove, a heating plate is provided inside the heating groove, and the heating plate is electrically connected to the battery.

[0015] Preferably, a visible window is provided on the upper end surface of the main body shell on one side close to the liquid storage tank, and scale lines are provided on the surface of the visible window.

[0016] Preferably, a cover plate is provided on the upper surface of the main body shell and located on one side of the visual window, and the cover plate is detachable.

[0017] Preferably, tightening belts are arranged at four corners of the surface of the main shell on the side facing away from the cover plate, and the ends of the tightening belts are provided with Velcro strips that cooperate with each other.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The anti-extravasation chemotherapy drug delivery device is provided with a driving assembly. When the driving motor works, it can effectively drive the driving screw to rotate. The driving screw rotates and under the limiting action of the T-shaped slide bar, the driving tube moves to the side close to the driving motor. The piston head is driven to move synchronously through the connecting plate and the piston rod. The piston head can push the medicine inside the liquid storage tank to complete the injection of the medicine to the patient, saving time and effort, and avoiding the problem of manual operation of the drug delivery device, which is difficult to control the force and causes extravasation of the medicine.

[0020] 2. The anti-extravasation chemotherapy drug delivery device is provided with a tightening strap and a Velcro, so that the anti-extravasation chemotherapy drug delivery device can be fixed on the patient's arm to ensure the overall stability, thereby avoiding the problem of drug solution extravasation caused by needle shaking. In winter, the temperature of the drug solution inside the reservoir is relatively low. By heating with the heating plate, the temperature of the drug solution inside the reservoir can be effectively increased, thereby ensuring the comfort of the patient when injecting the drug solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is one of the overall structural schematic diagrams of the utility model anti-extravasation chemotherapy drug delivery device;

[0022] Figure 2 This is the second schematic diagram of the overall structure of the anti-extravasation chemotherapy drug delivery device of the utility model;

[0023] Figure 3 It is a cross-sectional view of the main body shell of the utility model;

[0024] Figure 4 This is a schematic diagram of the connection structure between the piston rod and the connecting plate of the utility model;

[0025] Figure 5 For this utility model Figure 3 A magnified schematic diagram of the structure in the middle.

[0026] In the figure: 1. Main body shell; 101. Installation slot; 102. Liquid storage tank; 103. Heating tank; 104. Cover plate; 105. Visual window; 2. Piston head; 201. Piston rod; 202. Limit nut; 3. Needle; 4. Controller; 5. Drive assembly; 501. Drive motor; 502. Drive screw; 503. Drive tube; 504. T-shaped slide bar; 505. Connecting plate; 6. Heating plate; 7. Battery; 8. Tightening belt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5 , an anti-extravasation chemotherapy drug delivery device, comprising:

[0029] The main body shell 1 has a liquid storage tank 102 on one side of the main body shell 1;

[0030] The piston head 2 is disposed inside the liquid storage tank 102;

[0031] The needle 3 is connected to the discharge port of the liquid storage tank 102 through a pipeline;

[0032] A piston rod 201 is arranged on the side of the piston head 2 away from the liquid discharge port of the liquid storage tank 102, a mounting groove 101 is provided inside the side of the main housing 1 away from the liquid storage tank 102, a driving assembly 5 is arranged inside and outside the mounting groove 101, a controller 4 is arranged at the center of the side of the main housing 1 away from the liquid storage tank 102, a battery 7 is arranged at the middle end of the bottom surface of the mounting groove 101, and the controller 4 is electrically connected to the battery 7;

[0033] The driving assembly 5 includes a driving screw 502 , which is rotatably disposed inside the mounting groove 101 .

[0034] Among them; the driving component 5 also includes a driving motor 501, a driving tube 503 and a connecting plate 505. The driving motor 501 is electrically connected to the battery 7. The driving motor 501 is arranged inside the mounting groove 101 near one end of the needle 3. One end of the driving screw 502 is fixedly connected to the output end of the driving motor 501. The end of the driving screw 502 away from the driving motor 501 is threadedly connected to the driving tube 503. When the driving motor 501 works, the driving screw 502 can be effectively driven to rotate.

[0035] Among them; the end of the drive tube 503 away from the drive motor 501 passes through the side wall of the installation groove 101 and is connected to the connecting plate 505, the end of the connecting plate 505 away from the drive tube 503 is connected to the piston rod 201, and a T-shaped slide 504 is fixedly provided on the upper end surface of the drive tube 503. The drive tube 503 is slidably connected to the main shell 1 through the T-shaped slide 504. The end of the piston rod 201 away from the piston head 2 is fixedly provided with a threaded convex shaft, which passes through the perforation on the connecting plate 505 and is threadedly connected to the limit nut 2 02. By driving the screw 502 to rotate, under the limiting action of the T-shaped slide bar 504, the driving tube 503 can move horizontally along the driving screw 502. When the driving tube 503 moves toward the side close to the driving motor 501, the piston head 2 can be driven to move synchronously with the piston rod 201 through the connecting plate 505. The piston head 2 can push the medicine in the liquid storage tank 102 to complete the injection of the medicine to the patient, saving time and effort, and avoiding the problem of manual operation of the drug delivery device, which is difficult to control the force and causes the problem of extravasation of the medicine.

[0036] Among them; a heating groove 103 is opened inside the main shell 1 and between the installation groove 101 and the liquid storage tank 102, and a heating plate 6 is arranged inside the heating groove 103, and the heating plate 6 is electrically connected to the battery 7. In winter, the temperature of the liquid medicine inside the liquid storage tank 102 is relatively low. By heating the heating plate 6 with electricity, the liquid medicine inside the liquid storage tank 102 can be effectively heated, thereby ensuring the comfort of the patient when injecting the liquid medicine.

[0037] Among them; a visual window 105 is opened on the upper surface of the main shell 1 near the liquid storage tank 102, and scale lines are set on the surface of the visual window 105. A cover plate 104 is set on the upper surface of the main shell 1 and located on the side of the visual window 105. The cover plate 104 is detachable. By setting the visual window 105, it can be effectively used to observe the remaining amount of liquid medicine inside the liquid storage tank 102. By setting the cover plate 104, the drive component 5 is easy to install and disassemble, which is convenient for later maintenance.

[0038] Among them; tightening belts 8 are provided at the four corners of the surface of the side of the main shell 1 away from the cover plate 104, and the ends of the tightening belts 8 are provided with Velcro that cooperate with each other. By providing the tightening belts 8 and the Velcro, the anti-extravasation chemotherapy drug delivery device can be fixed on the patient's arm to ensure the overall stability, thereby avoiding the problem of extravasation of the drug solution due to the shaking of the needle 3.

[0039] Working principle: by providing a tightening belt 8 and Velcro, the anti-extravasation chemotherapy drug delivery device can be fixed on the patient's arm to ensure the overall stability. Through the controller 4, the driving component 5 can be controlled to start or stop working. When the driving component 5 is working, the driving motor 501 works, which can effectively drive the driving screw 502 to rotate. By rotating the driving screw 502, under the limiting action of the T-shaped slide bar 504, the driving tube 503 can be moved horizontally along the driving screw 502.

[0040] Furthermore, when the driving tube 503 moves toward the side close to the driving motor 501, the piston head 2 can be driven to move synchronously with the piston rod 201 through the connecting plate 505. The piston head 2 can push out the medicine in the liquid storage tank 102 to complete the injection of the medicine to the patient, saving time and effort, and avoiding the problem of poor control of the force of the manual operation of the drug delivery device, which may lead to extravasation of the medicine. By providing a visual window 105, the amount of medicine remaining in the liquid storage tank 102 can be effectively observed. By providing a cover plate 104, the driving component 5 can be easily installed and disassembled, which is convenient for later maintenance.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-extravasation chemotherapy drug delivery device, comprising: A main body shell (1), wherein a liquid storage tank (102) is provided on one side of the main body shell (1); A piston head (2), wherein the piston head (2) is arranged inside the liquid storage tank (102); A needle (3), wherein the needle (3) is connected to a liquid discharge port of the liquid storage tank (102) via a pipeline; The invention is characterized in that a piston rod (201) is arranged on the side of the piston head (2) facing away from the liquid discharge port of the liquid storage tank (102), a mounting groove (101) is provided inside the side of the main shell (1) facing away from the liquid storage tank (102), a driving assembly (5) is arranged inside and outside the mounting groove (101), a controller (4) is arranged at the center of the side surface of the main shell (1) away from the liquid storage tank (102), a storage battery (7) is arranged at the middle end of the bottom surface of the mounting groove (101), and the controller (4) is electrically connected to the storage battery (7); The driving assembly (5) comprises a driving screw (502), and the driving screw (502) is rotatably arranged inside the mounting groove (101).

2. The anti-extravasation chemotherapy drug delivery device according to claim 1, characterized in that: The driving assembly (5) further comprises a driving motor (501), a driving tube (503) and a connecting plate (505); the driving motor (501) is electrically connected to the storage battery (7); the driving motor (501) is arranged inside the mounting groove (101) near one end of the needle (3); one end of the driving screw rod (502) is fixedly connected to the output end of the driving motor (501); and the end of the driving screw rod (502) away from the driving motor (501) is threadedly connected to the driving tube (503).

3. The anti-extravasation chemotherapy drug delivery device according to claim 2, characterized in that: The end of the driving tube (503) away from the driving motor (501) passes through the side wall of the mounting groove (101) and is connected to the connecting plate (505); the end of the connecting plate (505) away from the driving tube (503) is connected to the piston rod (201); a T-shaped slide bar (504) is fixedly provided on the upper end surface of the driving tube (503); and the driving tube (503) is slidably connected to the main housing (1) via the T-shaped slide bar (504).

4. The anti-extravasation chemotherapy drug delivery device according to claim 3, characterized in that: A threaded protruding shaft is fixedly provided at one end of the piston rod (201) away from the piston head (2), and the threaded protruding shaft passes through a through hole on the connecting plate (505) and is threadedly connected to a limiting nut (202).

5. The anti-extravasation chemotherapy drug delivery device according to claim 1, characterized in that: A heating groove (103) is provided inside the main body shell (1) and between the mounting groove (101) and the liquid storage groove (102). A heating plate (6) is provided inside the heating groove (103). The heating plate (6) is electrically connected to the storage battery (7).

6. The anti-extravasation chemotherapy drug delivery device according to claim 1, characterized in that: A visible window (105) is provided on the upper surface of the main housing (1) on the side close to the liquid storage tank (102), and scale lines are provided on the surface of the visible window (105).

7. The anti-extravasation chemotherapy drug delivery device according to claim 6, characterized in that: A cover plate (104) is provided on the upper end surface of the main housing (1) and located on one side of the visual window (105); the cover plate (104) is detachable.

8. The anti-extravasation chemotherapy drug delivery device according to claim 7, characterized in that: The four corners of the surface of the main body shell (1) facing away from the cover plate (104) are provided with tightening belts (8), and the ends of the tightening belts (8) are provided with Velcro strips that cooperate with each other.

Images