Dose-adjustable medical oncology immune injection device

Abstract

The invention provides a dosage-adjustable medical oncology immune injection device, and relates to the technical field of injection devices. The dosage-adjustable medical oncology immune injection device comprises a main body tube, a piston rod is slidably connected to the interior of the main body tube, a push block is fixedly connected to the rear end of the piston rod, a piston head is fixedly connected to the front end of the piston rod, and the outer wall of the piston head is tightly attached to the inner wall of the main body tube; main body rods are fixedly connected to the middles of the two sides of the outer wall of the push block, connecting rods are fixedly connected to the front ends of the outer walls of the adjacent sides of the main body rods, movable sleeves are fixedly connected to the outer walls of the adjacent sides of the connecting rods, and sliding rods are slidably connected to the inner walls of the main body rods. According to the dosage-adjustable medical oncology immune injection device provided by the invention, the device is automatically locked in a preset dosage state so as to be matched with a required dosage for injection, medical staff only need to focus on injection operation subsequently, and injection amount errors caused by injection force are not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of injection devices, in particular to an oncology internal medicine immunization injection device with adjustable dosage. Background Art

[0002] The Department of Oncology is a branch of the hospital's Oncology Department. It is mainly dedicated to the diagnosis, treatment and management of benign and malignant tumors through various medical means. Usually, the immune injection device is mainly used for the medical treatment of tumors. By locally injecting immune drugs such as immune cells, oncolytic agents, cytokines, etc. into the tumor, it promotes anti-tumor effects and enhances the effectiveness of immunotherapy.

[0003] However, the existing oncology immunotherapy injection devices usually rely on manual manpower to push the piston, which makes it difficult to control the magnitude of the force and to continuously maintain the stability of the force, thereby making it difficult to control the injection dosage. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a dosage-adjustable oncology internal medicine immune injection device, which solves the problem of difficulty in controlling injection dosage.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a dose-adjustable tumor internal medicine immunization injection device, comprising a main body tube, a piston rod is slidably connected inside the main body tube, a push block is fixedly connected to the rear end of the piston rod, a piston head is fixedly connected to the front end of the piston rod, the outer wall of the piston head is tightly fitted with the inner wall of the main body tube, the middle parts of both sides of the outer wall of the push block are fixedly connected to the main body rod, the front end of the outer wall of the adjacent side of the main body rod is fixedly connected to a connecting rod, the outer wall of the adjacent side of the connecting rod is fixedly connected to a movable sleeve, the inner wall of the main body rod is slidably connected to a sliding rod, and the front end of the outer wall of the adjacent side of the sliding rod is fixedly connected to a limiting sleeve;

[0008] The front end and the rear end of the outer wall of the main body tube are fixedly connected with a mounting plate, the upper part of the outer wall adjacent to the mounting plate is fixedly connected with a mounting sleeve, a storage cavity is opened inside the mounting sleeve, a threaded rod is rotatably connected to the front end of the inner wall of the storage cavity, the sensing sleeve of the threaded rod is provided with a threaded sleeve block, and the lower end of the threaded sleeve block is fixedly connected to the outer wall of the upper end of the limiting sleeve;

[0009] Through the above technical solution, the rotating rod cooperates with the threaded rod to rotate so that the limit sleeve can slide, and the predetermined injection dosage can be positioned according to the needs by cooperating with the metering line. The required injection medicine is absorbed by cooperating with the piston head, piston rod and push block. By continuously pushing the push block, the sliding sleeve is flush with the piston head and thus abuts against the predetermined position limit sleeve, and the device is automatically locked in the preset dosage state, so as to perform injection in accordance with the required dosage of medicine. Medical staff only need to focus on the injection operation afterwards, and there is no need to cause errors in the injection amount due to the injection force.

[0010] Preferably, a bracket is fixedly connected to the lower part of the outer wall adjacent to one end of the mounting plate, and a plurality of stop blocks are fixedly connected to the lower surface of the bracket;

[0011] Through the above technical solution, the bracket and the plurality of abutments facilitate the user to rotate the rotating rod stably when holding the rotating rod.

[0012] Preferably, a suction tube is connected through the middle of the outer wall of the front end of the main body tube;

[0013] Through the above technical solution, it is convenient to absorb the required medicine through the suction tube.

[0014] Preferably, a storage groove 1 is provided on the inner wall of the movable sleeve, a plurality of balls 1 are arranged inside the storage groove 1, and the outer wall of the balls 1 is tightly fitted with the outer wall of the main body tube;

[0015] Through the above technical solution, multiple balls facilitate the movement of the movable sleeve.

[0016] Preferably, metering lines are provided in the middle of both sides of the outer wall of the main tube;

[0017] Through the above technical solution, the metering line is convenient for pre-setting the required injection metering.

[0018] Preferably, the inner wall of the limiting sleeve is provided with a second storage groove, and a plurality of second balls are arranged inside the second storage groove;

[0019] Through the above technical solution, the movement of the limit sleeve is facilitated by the plurality of ball bearings.

[0020] Preferably, the rear end of the threaded rod passes through the rear end mounting plate to the outside of the rear end mounting plate and is fixedly connected to the rotating rod;

[0021] Through the above technical solution, the rotating rod can easily drive the threaded rod to rotate.

[0022] Preferably, a limiting groove is provided in the middle of the bottom surface of the storage cavity, sliding grooves are provided in the middle of both sides of the outer wall of the threaded sleeve, and the threaded sleeve is slidably connected to the inner wall of the limiting groove.

[0023] Through the above technical solution, the threaded sleeve is slidably connected to the inner wall of the limiting groove, which makes it easy to limit the threaded sleeve so that it can move horizontally.

[0024] (III) Beneficial effects

[0025] The present invention provides a dosage-adjustable tumor internal medicine immune injection device, which has the following beneficial effects:

[0026] 1. The present invention provides an adjustable-dose oncology internal medicine immunization injection device. Compared with the existing adjustable-dose oncology internal medicine immunization injection device, the limit sleeve is slid by rotating the rotating rod in cooperation with the threaded rod, and the predetermined injection dosage is conveniently positioned according to the needs by cooperating with the metering line. The medicine to be injected is absorbed by cooperating with the piston head, the piston rod and the push block. By continuously pushing the push block, the sliding sleeve is flush with the piston head and thus abuts against the limit sleeve in the predetermined position, and the device is automatically locked in the preset dosage state, so as to inject the required medicine dosage. Medical staff only need to focus on the injection operation later, and there is no need to cause errors in the injection amount due to the injection force. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0029] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle;

[0030] Figure 4 It is a schematic diagram of the push block in the present invention;

[0031] Figure 5 It is a schematic axial section diagram of the main body tube in the present invention;

[0032] Figure 6 It is an axial bottom view of the installation sleeve in the present invention;

[0033] Figure 7 For the present invention Figure 6 The enlarged view of point B in the middle;

[0034] Figure 8 It is a bottom view of the present invention.

[0035] in,

[0036] 1. Main pipe; 11. Mounting plate; 12. Bracket; 13. Stop block; 14. Suction pipe; 15. Piston rod; 16. Push block; 17. Piston head;

[0037] 2. Main rod; 21. Connecting rod; 22. Movable sleeve; 23. Storage slot 1; 24. Ball 1; 25. Sliding rod; 26. Measuring line; 27. Limit sleeve; 28. Storage slot 2; 29. ​​Ball 2;

[0038] 3. Install sleeve; 31. Storage chamber; 32. Threaded rod; 33. Limiting groove; 34. Threaded sleeve block; 35. Slide groove; 36. Rotating rod. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] like Figure 1-8 As shown, the embodiment of the present invention provides a dose-adjustable tumor internal medicine immune injection device, comprising a main body tube 1, a piston rod 15 is slidably connected inside the main body tube 1, a push block 16 is fixedly connected to the rear end of the piston rod 15, a piston head 17 is fixedly connected to the front end of the piston rod 15, the outer wall of the piston head 17 is tightly fitted with the inner wall of the main body tube 1, the middle parts of both sides of the outer wall of the push block 16 are fixedly connected to the main body rod 2, the front end of the outer wall of the adjacent side of the main body rod 2 is fixedly connected to the connecting rod 21, the outer wall of the adjacent side of the connecting rod 21 is fixedly connected to the movable sleeve 22, the inner wall of the main body rod 2 is slidably connected to the sliding rod 25, and the front end of the outer wall of the adjacent side of the sliding rod 25 is fixedly connected to the limiting sleeve 27;

[0041] The front and rear ends of the outer wall of the main body tube 1 are fixedly connected with a mounting plate 11, and the upper part of the outer wall adjacent to the mounting plate 11 is fixedly connected with a mounting sleeve 3, a storage chamber 31 is provided inside the mounting sleeve 3, and a threaded rod 32 is rotatably connected to the front end of the inner wall of the storage chamber 31, and the sensing sleeve of the threaded rod 32 is provided with a threaded sleeve block 34, and the lower end of the threaded sleeve block 34 is fixedly connected to the outer wall of the upper end of the limiting sleeve 27;

[0042] The rotating rod 36 is rotated in coordination with the threaded rod 32 to make the limiting sleeve 27 slide, and the metering line 26 is used to facilitate positioning of the predetermined injection dosage as required, and the piston head 17, the piston rod 15 and the push block 16 are used to absorb the medicine to be injected. By continuously pushing the push block 16, the sliding sleeve is flush with the piston head 17 and thus abuts against the limiting sleeve 27 at the predetermined position, and the device is automatically locked in the preset dosage state, so as to perform injection in coordination with the required medicine dosage. Medical staff only need to focus on the injection operation later, and there is no need to cause errors in the injection amount due to the injection force.

[0043] A bracket 12 is fixedly connected to the lower part of the outer wall adjacent to one end of the mounting plate 11, and a plurality of stop blocks 13 are fixedly connected to the lower surface of the bracket 12;

[0044] The bracket 12 and the plurality of stop blocks 13 facilitate the stability of the rotating rod 36 when the user holds the rotating rod 36 .

[0045] A suction pipe 14 is connected through the middle of the outer wall of the front end of the main body tube 1;

[0046] The suction tube 14 facilitates the suction of the required medicine.

[0047] The inner wall of the movable sleeve 22 is provided with a storage groove 23, and a plurality of balls 24 are arranged inside the storage groove 23, and the outer wall of the balls 24 is closely fitted with the outer wall of the main tube 1;

[0048] The plurality of balls 24 facilitate the movement of the movable sleeve 22 .

[0049] The middle of both sides of the outer wall of the main tube 1 are provided with metering lines 26;

[0050] Metering line 26 facilitates pre-determining the desired injection metering.

[0051] The inner wall of the limiting sleeve 27 is provided with a storage groove 28, and a plurality of balls 29 are arranged inside the storage groove 28;

[0052] The plurality of balls 29 facilitate the movement of the limiting sleeve 27 .

[0053] The rear end of the threaded rod 32 passes through the rear end mounting plate 11 to the outside of the rear end mounting plate 11 and is fixedly connected to the rotating rod 36;

[0054] The rotating rod 36 is convenient for driving the threaded rod 32 to rotate.

[0055] A limiting groove 33 is provided in the middle of the bottom surface of the storage cavity 31 , and sliding grooves 35 are provided in the middle of both sides of the outer wall of the threaded sleeve 34 , and the threaded sleeve 34 is slidably connected to the inner wall of the limiting groove 33 .

[0056] The threaded sleeve 34 is slidably connected to the inner wall of the limiting groove 33, so as to limit the threaded sleeve 34 so that it can move laterally.

[0057] Working principle: By pulling the push block 16, the piston rod 15 and the piston head 17 are driven to slide in the main tube 1, so that negative pressure is generated inside to extract the required injection medicine from the suction tube 14 into the main tube 1. The extracted capacity can be easily checked through the scale line. The rotating rod 36 is then rotated to drive the threaded rod 32 to rotate while driving the threaded sleeve block 34 and the limit sleeve 27 to slide, so as to adjust the injection capacity according to the required positioning. The injection capacity can be obtained by subtracting the sliding distance from the extracted capacity. The push block 16 is pushed to drive the piston rod 15 and the piston head 17 to extrude the internal medicine, and then it continues to approach the limit sleeve 27 to counteract it.

[0058] 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. A dose-adjustable oncology immunotherapy injection device, comprising a main tube (1), characterized in that: The main body tube (1) is slidably connected to a piston rod (15), the rear end of the piston rod (15) is fixedly connected to a push block (16), the front end of the piston rod (15) is fixedly connected to a piston head (17), the outer wall of the piston head (17) is tightly fitted with the inner wall of the main body tube (1), the middle parts of both sides of the outer wall of the push block (16) are fixedly connected to the main body rod (2), the front end of the outer wall of the adjacent side of the main body rod (2) is fixedly connected to a connecting rod (21), the outer wall of the adjacent side of the connecting rod (21) is fixedly connected to a movable sleeve (22), the inner wall of the main body rod (2) is slidably connected to a sliding rod (25), and the front end of the outer wall of the adjacent side of the sliding rod (25) is fixedly connected to a limiting sleeve (27); The front and rear ends of the outer wall of the main body tube (1) are fixedly connected to a mounting plate (11); the upper part of the outer wall adjacent to the mounting plate (11) is fixedly connected to a mounting sleeve (3); a storage cavity (31) is provided inside the mounting sleeve (3); a threaded rod (32) is rotatably connected to the front end of the inner wall of the storage cavity (31); a sensing sleeve of the threaded rod (32) is provided with a threaded sleeve block (34); the lower end of the threaded sleeve block (34) is fixedly connected to the outer wall of the upper end of the limiting sleeve (27).

2. The dose-adjustable oncology intravenous immunotherapy device according to claim 1, characterized in that: A bracket (12) is fixedly connected to the lower portion of the outer wall adjacent to one end of the mounting plate (11), and a plurality of stop blocks (13) are fixedly connected to the lower surface of the bracket (12).

3. The dose-adjustable oncology intravenous immunotherapy device according to claim 1, characterized in that: A suction tube (14) is connected through the middle of the front end outer wall of the main body tube (1).

4. The dose-adjustable oncology intravenous immunotherapy device according to claim 1, characterized in that: The inner wall of the movable sleeve (22) is provided with a storage groove (23), and a plurality of balls (24) are arranged inside the storage groove (23). The outer wall of the balls (24) is tightly fitted with the outer wall of the main tube (1).

5. The dose-adjustable oncology intravenous immunotherapy device according to claim 1, characterized in that: Measuring lines (26) are provided in the middle of both sides of the outer wall of the main body tube (1).

6. The dose-adjustable oncology intravenous immunotherapy device according to claim 1, characterized in that: The inner wall of the limiting sleeve (27) is provided with a second storage groove (28), and a plurality of second balls (29) are arranged inside the second storage groove (28).

7. The dose-adjustable oncology intravenous immunotherapy injection device according to claim 1, characterized in that: The rear end of the threaded rod (32) passes through the rear end mounting plate (11) to the outside of the rear end mounting plate (11) and is fixedly connected to the rotating rod (36).

8. The dose-adjustable oncology intravenous immunotherapy device according to claim 1, characterized in that: A limiting groove (33) is provided in the middle of the bottom surface of the storage cavity (31), sliding grooves (35) are provided in the middle of both sides of the outer wall of the threaded sleeve (34), and the threaded sleeve (34) is slidably connected to the inner wall of the limiting groove (33).

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