Dosing device for medical care

Abstract

The invention discloses an administration device for medical care, belongs to the field of medical care, and aims to solve the problems that medicines are easy to accumulate in some wrinkles and recesses, and the medicines are insufficient in distribution in other areas, for example, when proctitis is treated, if the medicines cannot uniformly cover the inner wall of the rectum and inflammation parts cannot be fully acted, the treatment effect is influenced. A medicine feeding device for medical care comprises a first supporting plate, a medicine feeding pipe arranged on the inner side of the first supporting plate and a first push plate arranged on the inner side of the medicine feeding pipe, a rotating mechanism is arranged above the first supporting plate, and a buckle mechanism is arranged on the outer side of the rotating mechanism. By means of the structure, the drug delivery pipe can be driven to rotate during drug delivery, drugs from the drug delivery pipe can be evenly smeared on the inner side wall of the anus, compared with the prior art, the drug absorption effect is better, and the purpose of fully releasing the drug effect is achieved.

Description

Technical Field

[0001] The present invention relates to the field of medical care, and in particular to a drug delivery device for medical care. Background Art

[0002] Drug delivery devices for medical care play a vital role in the medical process, mainly in terms of accurate drug delivery, improving treatment effects, reducing adverse reactions, and facilitating operation. Different diseases and patients have very different requirements for drug dosage, and drug delivery devices can accurately control the amount of drug delivered.

[0003] The publication number is CN221130717U, which discloses a rectal drug delivery device, which relates to the technical field of drug delivery devices, including: an injection head, one end of which is conical; an injection cavity provided in the injection head; a plurality of drug delivery holes provided at one end of the injection head, and the plurality of drug delivery holes are connected to the injection cavity; a first push rod that movably cooperates with the injection cavity of the injection head; a medicine storage tank provided at one end of the first push rod; a second push rod threadedly sleeved in the first push rod, and the second push rod is movably located in the medicine storage tank. In the medical field, anal drug delivery, as an important route of drug delivery, has many advantages. For some patients who cannot take oral medications, such as those with dysphagia, severe vomiting or gastrointestinal dysfunction, anal drug delivery provides an effective alternative. In addition, anal administration of some drugs can avoid the first-pass effect of the liver, improve the bioavailability of drugs, and enable drugs to act directly on the rectum and surrounding tissues, which has significant therapeutic effects on local rectal diseases such as hemorrhoids and proctitis. At present, the common anal administration method is to directly administer the drug after the drug administration tube enters the anus. However, this administration method has obvious defects. The inner wall of the human anus is not smooth, but has many wrinkles. The presence of these wrinkles makes it difficult for the drug to be evenly distributed during direct administration. The drug is easy to accumulate in certain wrinkle depressions, while other areas are insufficiently distributed. For example, when treating proctitis, if the drug cannot evenly cover the inner wall of the rectum, the inflamed area may not be able to get sufficient drug action, thus affecting the treatment effect.

[0004] To solve the above problems, a drug delivery device for medical care is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a drug delivery device for medical care, which solves the problem that the drug cannot evenly cover the inner wall of the rectum, the inflamed area may not be fully affected by the drug, and thus the treatment effect is affected.

[0006] To achieve the above object, the present invention provides the following technical solution: a drug delivery device for medical care, comprising a first support plate, a drug delivery tube arranged inside the first support plate, a first push plate arranged inside the drug delivery tube, a rotating mechanism arranged above the first support plate, and a buckle mechanism arranged outside the rotating mechanism;

[0007] The rotating mechanism includes a pushing component and a pulling component, and the pulling component is arranged on one side of the pushing component;

[0008] The pushing assembly includes a second support plate fixedly connected to the top of the first support plate, a first hole is arranged inside the second support plate, a push rod fixedly connected to the first push plate is arranged inside the first hole, a second hole is opened outside the first hole, a second push plate fixedly connected to the push rod is arranged inside the second hole, a first guide groove is opened on the upper outer side of the dosing tube, a first guide rod is arranged inside the first guide groove, the first guide rod and the push rod are fixedly connected by a first connecting rod, a third hole is arranged in the middle inner part of the first support plate, a first groove is opened on the inner side surface of the third hole, and a rotating disk fixedly connected to the dosing tube is arranged inside the first groove.

[0009] Preferably, the push rod has an appearance structure of a cuboid, and the outer side surface of the push rod fits with the inner side surface of the first hole.

[0010] Preferably, the appearance structure of the first guide groove is spiral, and the first guide groove and the first guide rod are matched in a clearance fit.

[0011] Preferably, the appearance structure of the rotating disk is disc-shaped, and the outer side surface of the rotating disk fits with the inner side surface of the first groove.

[0012] Preferably, the pulling assembly includes a first rack fixedly connected to the outside of the push rod, the outside of the first rack is meshingly connected with a gear, the outside of the gear is provided with a second rack, the gear and the second support plate are connected in a rotating manner, a slide groove is provided on the middle outer side of the dosing tube, a slider is provided on the inner side of the slide groove, a scraper is fixedly connected to the outside of the slider, a protective cover is provided on the outside of the scraper, a collecting box is fixedly connected to the outside of the first support plate, a sealing pull plate fixedly connected to the second rack is provided on the inside of the collecting box, the collecting box is connected to the protective cover through an airflow tube, and a medical silicone pad is fixedly connected to one side of the protective cover.

[0013] Preferably, the central axis of the slide groove is parallel to the central axis of the dosing tube.

[0014] Preferably, both the upper and lower side surfaces of the protective cover are inclined surfaces, and the inner side surface of the protective cover is in contact with the outer side surface of the scraper.

[0015] Preferably, the central axis of the second rack coincides with the central axis of the sealing pull plate, and the central axis of the second rack is parallel to the central axis of the first rack.

[0016] Preferably, a fourth hole is provided inside one side of the first support plate, the buckle mechanism includes a first elastic telescopic rod arranged on the inner side of the fourth hole, a fifth hole is provided inside the second push plate, the widths of the fourth hole and the fifth hole are both greater than the width of the first elastic telescopic rod, the upper end of the first elastic telescopic rod is nested inside the fifth hole, a first limiting groove is provided on the inner wall of the fifth hole close to the dosing tube, a first limiting rod is fixedly connected to the outer side of the upper end of the first elastic telescopic rod, the first limiting rods are equidistantly distributed on the outer side of the upper end of the first elastic telescopic rod, and the first limiting rod and the first limiting groove are matched in a clearance fit, a seventh hole is provided inside the first support plate on the side of the fourth hole away from the first hole, and a There is a second elastic telescopic rod, the lower end of the second elastic telescopic rod is connected to the protective cover in a fixed manner, a second limiting groove is provided on the outer side of the upper end of the second elastic telescopic rod, the second limiting grooves are equidistantly distributed inside the second elastic telescopic rod, the second limiting groove and the pushing plate are matched in a clearance match, a threaded rod is rotatably connected to a side of the first support plate close to the seventh hole, the outer side of the threaded rod is threadedly connected to the pushing plate, a sixth hole is provided inside the pushing plate, the upper end of the second elastic telescopic rod is nested in the inner side of the sixth hole, and the width of the sixth hole is greater than the width of the upper end of the second elastic telescopic rod, the pushing plate and the first support plate are connected in a horizontal sliding manner, and the pushing plate and the first elastic telescopic rod are connected in a vertical sliding manner.

[0017] Preferably, the elastic strength of the first elastic telescopic rod is greater than the elastic strength of the second elastic telescopic rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The drug delivery device for medical care provided by the present invention is provided with a rotating mechanism, so that the drug delivery tube can be driven to rotate during drug delivery, so that the drug coming out of the drug delivery tube can be evenly applied to the inner wall of the anus. Compared with the prior art, the drug absorption effect is better, thereby achieving the purpose of fully releasing the drug effect.

[0020] 2. The present invention provides a drug delivery device for medical care, which can pull the components to absorb the splashes during drug delivery, thereby avoiding outflow due to improper holding, thereby reducing pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the left side cross-sectional structure of the protective cover of the present invention;

[0023] Figure 3 It is a schematic diagram of the top view of the structure of the second support plate of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the two guide grooves of the present invention from the front left;

[0025] Figure 5 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0026] Figure 6 For the present invention Figure 2 Schematic diagram of the structure at B in the middle;

[0027] Figure 7 For the present invention Figure 3 Schematic diagram of the structure at C in the middle;

[0028] Figure 8 For the present invention Figure 2 Schematic diagram of the structure at point D in the middle.

[0029] In the figure: 1, first support plate; 2, drug delivery tube; 3, first push plate; 4, rotating mechanism; 41, pushing assembly; 4101, second support plate; 4102, first hole; 4103, push rod; 4104, second hole; 4105, second push plate; 4106, first guide groove; 4107, first guide rod; 4108, first connecting rod; 4109, third hole; 4110, first groove; 4111, rotating disk; 42, pulling assembly; 4201, first rack; 4202, gear; 4210, second gear strip; 4203, slide groove; 4204, slider; 4205, scraper; 4206, protective cover; 4207, collection box; 4208, sealing pull plate; 4209, air flow tube; 4211, medical silicone pad; 6, fourth hole; 5, buckle mechanism; 501, first elastic telescopic rod; 502, fifth hole; 503, first limiting groove; 504, first limiting rod; 512, seventh hole; 506, second elastic telescopic rod; 507, second limiting groove; 508, threaded rod; 509, push plate; 510, sixth hole. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-Figure 8The present invention provides a technical solution: a drug delivery device for medical care, comprising a first support plate 1, a drug delivery tube 2 arranged inside the first support plate 1, a first push plate 3 arranged inside the drug delivery tube 2, a rotating mechanism 4 arranged above the first support plate 1, and a buckle mechanism 5 arranged outside the rotating mechanism 4;

[0032] The rotating mechanism 4 includes a pushing component 41 and a pulling component 42, and the pulling component 42 is arranged on one side of the pushing component 41;

[0033] The pushing assembly 41 includes a second supporting plate 4101 fixedly connected to the top of the first supporting plate 1, a first hole 4102 is arranged inside the second supporting plate 4101, a push rod 4103 fixedly connected to the first pushing plate 3 is arranged inside the first hole 4102, the appearance structure of the push rod 4103 is a rectangular parallelepiped, and the outer side surface of the push rod 4103 is in contact with the inner side surface of the first hole 4102, so that the push rod 4103 does not rotate when moving inside the first hole 4102, a second hole 4104 is arranged outside the first hole 4102, a second pushing plate 4105 fixedly connected to the push rod 4103 is arranged inside the second hole 4104, a first guide groove 4106 is arranged on the upper outer side of the drug delivery tube 2, a first guide rod 4107 is arranged inside the first guide groove 4106, and the outer side of the first guide groove 4106 is provided with a first guide rod 4107. The structure is spiral, and the first guide groove 4106 and the first guide rod 4107 are matched with each other in a clearance fit, so that the first guide rod 4107 can drive the drug delivery tube 2 to rotate when it moves on the inner side of the first guide groove 4106, and the first guide rod 4107 and the push rod 4103 are fixedly connected by the first connecting rod 4108. A third hole 4109 is provided in the middle of the first support plate 1, and a first groove 4110 is provided on the inner side of the third hole 4109. A rotating disk 4111 fixedly connected to the drug delivery tube 2 is provided on the inner side of the first groove 4110. The appearance structure of the rotating disk 4111 is disc-shaped, and the outer side surface of the rotating disk 4111 fits with the inner side surface of the first groove 4110, so that the rotating disk 4111 does not rotate when it rotates on the inner side of the first groove 4110.

[0034] The pulling assembly 42 includes a first rack 4201 fixedly connected to the outside of the push rod 4103, the outside of the first rack 4201 is meshed with a gear 4202, the outside of the gear 4202 is provided with a second rack 4210, the gear 4202 is connected to the second support plate 4101 in a rotating manner, a slide groove 4203 is provided on the middle outside of the dosing tube 2, the central axis of the slide groove 4203 is parallel to the central axis of the dosing tube 2, so that the slider 4204 can slide laterally on the inside of the slide groove 4203, a slider 4204 is provided on the inside of the slide groove 4203, a scraper 4205 is fixedly connected to the outside of the slider 4204, a protective cover 4206 is provided on the outside of the scraper 4205, and a collector 4205 is fixedly connected to the outside of the first support plate 1 Box 4207, a sealing pull plate 4208 fixedly connected to the second rack 4210 is arranged on the inner side of the collection box 4207, the collection box 4207 is connected to the protective cover 4206 through the airflow tube 4209, the upper and lower side surfaces of the protective cover 4206 are both inclined surfaces, and the inner side surface of the protective cover 4206 fits with the outer side surface of the scraper 4205, so that the dirt on both sides of the protective cover 4206 will slide toward the middle, the central axis of the second rack 4210 coincides with the central axis of the sealing pull plate 4208, and the central axis of the second rack 4210 is parallel to the central axis of the first rack 4201, so that the second rack 4210 drives the sealing pull plate 4208 to slide vertically, and a medical silicone pad 4211 is fixedly connected to one side of the protective cover 4206.

[0035] A fourth hole 6 is provided inside one side of the first support plate 1, and the buckle mechanism 5 includes a first elastic telescopic rod 501 arranged inside the fourth hole 6, and a fifth hole 502 is provided inside the second push plate 4105. The widths of the fourth hole 6 and the fifth hole 502 are both greater than the width of the first elastic telescopic rod 501. The upper end of the first elastic telescopic rod 501 is nested inside the fifth hole 502, and a first limiting groove 503 is provided on the inner wall of the fifth hole 502 close to the drug delivery tube 2. The upper outer side of the rod 501 is fixedly connected with a first limiting rod 504, and the first limiting rod 504 is equidistantly distributed on the upper outer side of the first elastic telescopic rod 501, and the first limiting rod 504 cooperates with the first limiting groove 503 in a clearance fit. A seventh hole 512 is provided inside the first support plate 1 on the side of the fourth hole 6 away from the first hole 4102, and a second elastic telescopic rod 506 is provided inside the seventh hole 512. The lower end of the second elastic telescopic rod 506 is connected to the protective cover 4206 in a fixed manner. The second elastic telescopic rod 506 is fixedly connected, and a second limiting groove 507 is provided on the outer side of the upper end thereof. The second limiting grooves 507 are equidistantly distributed inside the second elastic telescopic rod 506. The second limiting grooves 507 cooperate with the push plate 509 in a clearance fit. A threaded rod 508 is rotatably connected to a side of the first support plate 1 close to the seventh hole 512. The outer side of the threaded rod 508 is threadedly connected to the push plate 509. A sixth hole 510 is provided inside the push plate 509. The upper end of the second elastic telescopic rod 506 is Nested in the inner side of the sixth hole 510, and the width of the sixth hole 510 is greater than the width of the upper end of the second elastic telescopic rod 506, the push plate 509 is connected to the first support plate 1 in a horizontal sliding connection, and the push plate 509 is connected to the first elastic telescopic rod 501 in a vertical sliding connection, and the elastic strength of the first elastic telescopic rod 501 is greater than the elastic strength of the second elastic telescopic rod 506, so that the second elastic telescopic rod 506 will not drive the first elastic telescopic rod 501 to telescope when telescoping.

[0036] In order to ensure that the medicine can be evenly applied to the inside of the anus, the first support plate 1 is held by the hand to push the dosing tube 2 into the inside of the anus, and the thumb is used to push the second push plate 4105 to drive the push rod 4103 to move toward the inside of the anus, so that the medicine inside the dosing tube 2 is sprayed out from the discharge port of the dosing tube 2. When the push rod 4103 moves, the first guide rod 4107, the push rod 4103 and the first connecting rod 4108 are driven to move. Because the appearance structure of the push rod 4103 is a rectangular parallelepiped, and the outer side surface of the push rod 4103 is in contact with the inner side surface of the first hole 4102, the appearance structure of the first guide groove 4106 is spiral, and the cooperation mode of the first guide groove 4106 and the first guide rod 4107 is a clearance cooperation. Because the dosing tube 2 will not move laterally, the first guide rod 4107 pushes the dosing tube 2 along the edge of the first guide groove 4106 to rotate and administer the medicine, so that the dosing is more uniform.

[0037] By providing the protective cover 4206 and the second elastic telescopic rod 506, after the insertion is completed, the protective cover 4206 and the medical silicone pad 4211 can be attached to the outside of the anus under the action of the second elastic telescopic rod 506, which can provide the doctor with a signal that the designated place has been reached, and can prevent splashing around when administering the drug, thereby reducing pollution.

[0038] When the push rod 4103 drives the first rack 4201 to move toward the side of the protective cover 4206, the gear 4202 rotates, driving the second rack 4210 and the sealing pull plate 4208 to move away from the protective cover 4206, thereby enlarging the space inside the collecting box 4207 and pushing the air inside the protective cover 4206 toward the inside of the collecting box 4207, so that the splashing generated during medication can be sucked into the inside of the collecting box 4207, thereby preventing the splashing dirt inside the protective cover 4206 from flowing out due to improper holding after medication is completed.

[0039] When the dosing tube 2 rotates, the slider 4204 is driven to rotate, and the scraper 4205 is driven to rotate, pushing the splashed dirt to rotate and move it to the connection between the air flow tube 4209 and the protective cover 4206, so that the splashed dirt generated during dosing can be sucked into the inner side of the collection box 4207 for a better effect.

[0040] Since it is inevitable that the push rod 4103 pushes the first push plate 3 to administer the drug, it is also inevitable that the collection box 4207 absorbs the splashed dirt inside the protective cover 4206. This can prevent the staff from forgetting to deal with the splashed dirt due to negligence and reduce the possibility of pollution.

[0041] Because the depth to which the medication tube 2 enters the anus each time varies for different people, the position of the protective cover 4206 needs to be adjusted. The threaded rod 508 is rotated to move the push plate 509 to one side, so that the push plate 509 leaves the position of the second limiting groove 507, so that the position of the second elastic telescopic rod 506 and the protective cover 4206 can be moved to mark the required insertion depth.

[0042] The push plate 509 moves to one side, driving the first elastic telescopic rod 501 vertically slidably connected thereto to move to one side together, so that the first limiting rod 504 moves out of the inner side of the first limiting groove 503. The height of the first elastic telescopic rod 501 can be adjusted together with the height of the second elastic telescopic rod 506. Because the feeding can be adjusted evenly according to the patient's feedback through manual control, manual control is required for drug administration. However, since the patient is prone to subconscious movements when inserting the drug administration tube into the anus, the doctor needs to use one hand to fix the patient, and then the doctor can only use one hand to administer the drug. At this time, the doctor hooks the first support plate 1 with his fingers and uses the thumb to push the second push plate 4105 to administer the drug. This is an action of two opposing forces, which makes it easy for the doctor to lose the pressure on the protective cover 4206. The force is given up, causing the dirt inside the protective cover 4206 to flow out. At this time, the second push plate 4105 pushes the first limit rod 504 and the first elastic telescopic rod 501 to move, so that the first elastic telescopic rod 501 can support the protective cover 4206 for the first time. Because the elastic strength of the first elastic telescopic rod 501 is greater than the elastic strength of the second elastic telescopic rod 506, the first elastic telescopic rod 501 pushes the second elastic telescopic rod 506 and the protective cover 4206 to be compressed, so that the medical silicone pad 4211 can be tightly attached to the outside of the anus. When the second elastic telescopic rod 506 and the protective cover 4206 can no longer be compressed, the second elastic telescopic rod 506 is compressed to continuously apply pressure to the protective cover 4206, so that the protective cover 4206 can consistently maintain protection of the outside of the anus during medication.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] 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 medication device for medical care, comprising a first support plate (1), a medication tube (2) arranged inside the first support plate (1), and a first push plate (3) arranged inside the medication tube (2), characterized in that: A rotating mechanism (4) is arranged above the first supporting plate (1), and a buckle mechanism (5) is arranged on the outer side of the rotating mechanism (4); The rotating mechanism (4) comprises a pushing component (41) and a pulling component (42), wherein the pulling component (42) is arranged on one side of the pushing component (41); The pushing assembly (41) comprises a second supporting plate (4101) fixedly connected to the first supporting plate (1); a first hole (4102) is arranged inside the second supporting plate (4101); a push rod (4103) fixedly connected to the first pushing plate (3) is arranged inside the first hole (4102); a second hole (4104) is opened outside the first hole (4102); a second pushing plate (4105) fixedly connected to the push rod (4103) is arranged inside the second hole (4104); the upper portion of the dosing tube (2) is provided with a first hole (4104); A first guide groove (4106) is provided on the outer side of the square, a first guide rod (4107) is provided on the inner side of the first guide groove (4106), the first guide rod (4107) is fixedly connected to the push rod (4103) by a first connecting rod (4108), a third hole (4109) is provided in the middle of the first support plate (1), a first groove (4110) is provided on the inner side of the third hole (4109), and a rotating disk (4111) fixedly connected to the drug delivery tube (2) is provided on the inner side of the first groove (4110).

2. A drug delivery device for medical care according to claim 1, characterized in that: The push rod (4103) has a rectangular parallelepiped appearance, and the outer side surface of the push rod (4103) fits with the inner side surface of the first hole (4102).

3. A drug delivery device for medical care according to claim 1, characterized in that: The appearance structure of the first guide groove (4106) is spiral, and the first guide groove (4106) and the first guide rod (4107) are matched in a clearance fit.

4. A drug delivery device for medical care according to claim 1, characterized in that: The appearance structure of the rotating disk (4111) is disc-shaped, and the outer side surface of the rotating disk (4111) fits with the inner side surface of the first groove (4110).

5. A drug delivery device for medical care according to claim 1, characterized in that: The pulling assembly (42) includes a first rack (4201) fixedly connected to the outside of the push rod (4103), the outside of the first rack (4201) is meshed with a gear (4202), the outside of the gear (4202) is provided with a second rack (4210), the gear (4202) and the second support plate (4101) are connected in a rotating manner, a slide groove (4203) is provided on the middle outer side of the drug delivery tube (2), a slider (4204) is provided on the inner side of the slide groove (4203), and the slider (4210) is provided on the outer side of the push rod (4103). A scraper (4205) is fixedly connected to the outer side of the first support plate (4204), a protective cover (4206) is arranged on the outer side of the scraper (4205), a collecting box (4207) is fixedly connected to the outer side of the first support plate (1), a sealing pull plate (4208) fixedly connected to the second rack (4210) is arranged on the inner side of the collecting box (4207), the collecting box (4207) is connected to the protective cover (4206) through an air flow tube (4209), and a medical silicone pad (4211) is fixedly connected to one side of the protective cover (4206).

6. A drug delivery device for medical care according to claim 5, characterized in that: The central axis of the slide groove (4203) is parallel to the central axis of the drug delivery tube (2).

7. A drug delivery device for medical care according to claim 5, characterized in that: The upper and lower side surfaces of the protective cover (4206) are both inclined surfaces, and the inner side surface of the protective cover (4206) is in contact with the outer side surface of the scraper (4205).

8. A drug delivery device for medical care according to claim 5, characterized in that: The central axis of the second rack (4210) coincides with the central axis of the sealing pull plate (4208), and the central axis of the second rack (4210) is parallel to the central axis of the first rack (4201).

9. A drug delivery device for medical care according to claim 1, characterized in that: A fourth hole (6) is provided inside one side of the first support plate (1), the buckle mechanism (5) comprises a first elastic telescopic rod (501) arranged inside the fourth hole (6), a fifth hole (502) is provided inside the second push plate (4105), the widths of the fourth hole (6) and the fifth hole (502) are both greater than the width of the first elastic telescopic rod (501), the upper end of the first elastic telescopic rod (501) is nested inside the fifth hole (502), and the fifth hole (502) is close to the drug delivery tube (2). A first limiting groove (503) is provided on the inner wall of one side, a first limiting rod (504) is fixedly connected to the outer side of the upper end of the first elastic telescopic rod (501), the first limiting rods (504) are equidistantly distributed on the outer side of the upper end of the first elastic telescopic rod (501), and the first limiting rods (504) and the first limiting groove (503) are matched in a clearance fit, and a seventh hole (512) is provided inside the first support plate (1) on the side of the fourth hole (6) away from the first hole (4102), and a A second elastic telescopic rod (506), the lower end of the second elastic telescopic rod (506) is connected to the protective cover (4206) in a fixed manner, a second limiting groove (507) is provided on the outer side of the upper end of the second elastic telescopic rod (506), the second limiting grooves (507) are equidistantly distributed on the outer side of the upper end of the second elastic telescopic rod (506), the second limiting grooves (507) and the push plate (509) are matched in a clearance manner, and a threaded rod (508) is rotatably connected to a side of the first support plate (1) close to the seventh hole (512) ), the outer side of the threaded rod (508) is threadedly connected to a push plate (509), a sixth hole (510) is provided inside the push plate (509), the upper end of the second elastic telescopic rod (506) is nested inside the sixth hole (510), and the width of the sixth hole (510) is greater than the width of the upper end of the second elastic telescopic rod (506), the push plate (509) is connected to the first support plate (1) in a lateral sliding connection, and the push plate (509) is connected to the first elastic telescopic rod (501) in a vertical sliding connection.

10. A drug delivery device for medical care according to claim 9, characterized in that: The elastic strength of the first elastic telescopic rod (501) is greater than the elastic strength of the second elastic telescopic rod (506).

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