CN111701117A - A drug delivery device for targeted drugs in frigid regions - Google Patents

Abstract

The invention relates to the technical field of medicine use, in particular to a medicine feeding device for targeted medicine in cold regions, which comprises a wrist strap, a shell, a front baffle, a rear baffle, a rotating disc and a medicine tube, wherein the wrist strap is arranged on the shell, the shell is provided with a notch, the front baffle and the rear baffle are connected to two end faces of the shell in a sealing manner, the front baffle and the rear baffle are respectively provided with a platform which is flush with the notch, the middle part of the front baffle is provided with a through hole, a rotating shaft is inserted in the through hole, one end of the rotating shaft is screwed with a nut, the other end of the rotating shaft is coaxially welded with the rotating disc, one end face of the rotating disc is provided with a plurality of mounting grooves, the device is fixed at a part needing injection through the wrist strap, the carrying is very convenient, the medicine injection can be carried out only by pressing a button when a patient is in danger, the pressure plate after the needle withdrawal can continuously squeeze the needle hole part to prevent the excessive bleeding of the needle.

Description

A drug delivery device for targeted drugs in frigid regions

technical field

The invention relates to the technical field of drug use, in particular to a drug delivery device for targeting drugs in frigid regions.

Background technique

Targeted drugs refer to drugs or their preparations endowed with targeting ability. The purpose is to enable the drug or its carrier to target specific lesions and accumulate or release active ingredients at the target site. Targeted preparations can form a relatively high concentration of drugs in the target local area, thereby improving drug efficacy while inhibiting toxic side effects and reducing damage to normal tissues and cells.

Targeted drugs can be divided into oral type and injection type according to different carriers. Taking insulin as the carrier of targeted drugs as an example, this kind of drug is mostly subcutaneously injected by injection. The environment in the cold zone is mostly abnormally dry. When breathing, it consumes a lot of water in the body. Coupled with the lack of daily water supply, the viscosity of the blood is too large, and the blood flow is not smooth, which may lead to vascular blockage. It is easy to relapse. When the patient is sick, the patient will be weak and may be complicated by muscle spasm. If a traditional syringe is used for injection at this time, the patient may not be able to stabilize the syringe, delay the best treatment time, and endanger the patient's life safety.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problem in the prior art that it is difficult for patients to effectively complete subcutaneous injection when the disease occurs, and proposes a drug delivery device for targeting drugs in cold regions.

In order to achieve the above object, the present invention adopts the following technical solutions:

Design a drug delivery device for targeted drugs in the frigid region, including a wrist strap, a casing, a front baffle, a rear baffle, a rotating disc and a drug tube, the wrist strap is installed on the casing, and the casing is mounted on the casing. There is a gap, the front baffle and the rear baffle can be sealed and connected to both ends of the casing, and the front baffle and the rear baffle are both provided with a platform that is flush with the gap, so A through hole is opened in the middle of the front baffle, and a rotating shaft is inserted into the through hole, one end of the rotating shaft is screwed with a nut, and the other end of the rotating shaft is coaxially welded with the rotating disk. A plurality of installation grooves are formed on one end surface of the disk, and a sliding hole is formed on the inner wall of one side of the installation groove. A guide rod is inserted in the sliding hole, and a first spring is sleeved on the guide rod. The end of the rod is welded on the limit plate, the two sides of the inner wall of the installation groove are provided with rotating grooves, the rotating groove is hinged with a hook, the limit plate can be clamped on the hook, the installation A guide tube is slidably connected in the groove, sliding sleeves are installed on both sides of the guide tube, the axis of the sliding sleeve is parallel to the axis of the guide tube, and a top rod is slidably installed in the sliding sleeve, and the top rod is slidably installed. One end extends out of the installation slot and is installed with an arc-shaped pressure plate, a second spring is sleeved on the top rod between the sliding sleeve and the pressure plate, an extension rod is installed on one end face of the guide pipe, and the The extension rod can abut on the limit plate, the medicine tube is slidably installed in the guide tube, the medicine tube is detachably connected to the limit plate, and the inner side wall of the installation groove is A slot is provided, and a connecting rod is slidably installed in the slot, one end of the connecting rod is welded on the guide tube, and a ratchet structure is welded coaxially on the other end surface of the rotating plate. The ratchet structure A ratchet rack is engaged on it, a connecting block is installed at the bottom end of the ratchet rack, a sliding groove is opened on the connecting block, the connecting rod can be slidably connected in the sliding groove, and the rear baffle is installed There is a drive structure that can drive the ratchet rack to move vertically.

Preferably, the connecting rod has at least a first working state and a second working state, and the first working state is that when the ratchet rack is disengaged from the ratchet structure, the connecting rod is located in the sliding groove. When , an interaction force is generated between the sliding groove and the connecting rod;

The second working state is that the connecting rod is disengaged from the sliding groove, the limiting plate is clamped on the hook, and the elastic force exerted by the second spring on the guide tube is the same as that of the first spring. The elastic force applied to the limiting plate is the same in magnitude.

Preferably, the driving structure includes a box body, the box body is connected to the rear baffle, a sliding tube is vertically welded on the bottom surface of the box body, and a sliding rod is inserted into the sliding tube, and the box body is A round hole is opened on the top of the body, a button is inserted in the round hole, the bottom end of the button abuts on the top end of the sliding rod, a fixing rod is installed horizontally on the sliding rod, and the fixing rod is fixed on the sliding rod. the top of the ratchet rack.

Preferably, one end of the medicine tube is sealed with a permanent magnet, and the other end is connected with a scalp needle, the permanent magnet can be adsorbed on the limit plate, the inside of the scalp needle is sealed by a fruit wax block, and the medicine tube is A piston is slidably installed inside, and the piston divides the medicament tube into a high pressure chamber and a medicament chamber.

The present invention provides a drug delivery device for targeting drugs in frigid regions, and the beneficial effects are that: the device for targeting drugs in frigid regions is fixed by medical personnel or professionals at the site where injection is required through a wristband, and it is very convenient to carry. It is convenient. When the patient is in critical condition, the subcutaneous injection of the drug can be performed only by pressing the button. After the drug injection is completed, the needle will be automatically closed after the button is released.

Description of drawings

FIG. 1 is a schematic structural diagram of a drug delivery device for targeting drugs in frigid regions proposed by the present invention.

FIG. 2 is a front view of a drug delivery device for targeting drugs in cold regions proposed by the present invention.

FIG. 3 is a schematic structural diagram of a rotating disk of a drug delivery device for targeting drugs in cold regions proposed by the present invention.

FIG. 4 is a partial enlarged view of a rotating disk of a drug delivery device for targeting drugs in cold regions proposed by the present invention.

FIG. 5 is a front view of a rotating disk of a drug delivery device for targeting drugs in cold regions proposed by the present invention.

FIG. 6 is a partial enlarged view of a rotating disk of a drug delivery device for targeting drugs in cold regions proposed by the present invention.

FIG. 7 is a cross-sectional view of a drug delivery device for targeting drugs in frigid regions proposed by the present invention.

FIG. 8 is a schematic structural diagram of the rear side of a rotating disk of a drug delivery device for targeting drugs in cold regions proposed by the present invention.

FIG. 9 is a rear view of a drug delivery device for targeting drugs in the frigid region proposed by the present invention.

FIG. 10 is a schematic structural diagram of a drug tube of a drug delivery device for a targeted drug in a cold zone proposed by the present invention.

11 is a schematic structural diagram of a ratchet structure of a drug delivery device for targeting drugs in cold regions proposed by the present invention.

12 is a schematic structural diagram of a wristband of a drug delivery device for targeting drugs in cold regions proposed by the present invention.

In the figure: wristband 1, bracket 101, shell 2, front baffle 201, nut 202, rear baffle 203, box 3, round hole 301, slide tube 302, slide bar 303, button 304, rotating disc 4. Installation slot 401, rotation slot 402, hook 403, sliding hole 404, guide rod 405, first spring 406, limit plate 407, drug tube 408, guide tube 409, sliding sleeve 410, ejector rod 411, extension rod 412, second spring 413, pressure plate 414, notch 415, connecting rod 416, ratchet structure 417, disc 4171, pawl 4172, limit block 7143, ratchet rack 418, permanent magnet 4081, piston 4082, high pressure chamber 4083 , Pharmacy chamber 4084, fruit wax block 4085, connecting block 419, sliding groove 420, fixed rod 421.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Referring to Figures 1-12, a drug delivery device for targeted drugs in cold regions includes a wristband 1, a housing 2, a front baffle 201, a rear baffle 203, a rotating disc 4 and a drug tube 408. The wristband 1 is provided with a The bracket 101, the shell 2 is installed in the bracket 101, the shell 2 is provided with a gap, the front baffle 201 and the rear baffle 203 can be sealed and connected to the two ends of the shell 2, the shell 2, the front baffle 201 Together with the rear baffle 203, a thin-walled hollow circular truncated hollow inside is formed. The diameter of the rotating disc 4 is smaller than the diameter of the hollow circular truncated truncated truncated truncated truncated truncated truncated truncated truncated truncated. The minimum distance of the central axis of the round table is less than the length of the radius of the rotating disk 4, the part of the rotating disk 4 protrudes from the notch, and the part of the rotating disk 4 that extends out of the gap does not exceed the inner wall of the wristband 1, the front baffle 201 and the rear baffle 203 is provided with a platform that is flush with the notch, and according to needs, a mounting groove 401 is opened on the front side of the rotating disk 4 to ensure that the mounting grooves 401 are evenly spaced and on the same circumference, and a sliding hole 404 is opened inside each mounting groove 401 Insert the guide rod 405, set the first spring 406 on the guide rod 405, the end of the guide rod 405 is welded on the limit plate 407, the guide rod 405 cooperates with the sliding hole 404 to ensure that the limit plate 407 compresses the first spring 406 when The spring will not be deflected. There are rotating grooves 402 on both sides of the installation groove 401 that are parallel to each other. The hooks 403 are hinged in the rotating grooves 402, and the limit plate 407 is manually clamped on the hooks 403. Insert two parallel ejector rods 411, the tops of the two ejector rods 411 are wedge-shaped and abut on the hooks 403, and the two ejector rods 411 are located between the two hooks 403, and the distance between the two ejector rods 411 is greater than The width of the limit plate 407 prevents the limit plate 407 from colliding with the ejector rod 411 when it slides. Select a guide tube 409 whose inner diameter is not less than the outer diameter of the drug tube 408. Both sides of the guide tube 409 are slidably connected to the ejector rod through the welding sliding sleeve 410. 411, an arc-shaped pressure plate 414 is installed at the bottom end of the two ejector rods 411, the pressure plate 414 is provided with an opening for the drug tube 408 to extend, and a second spring 413 is installed between the pressure plate 414 and the sliding sleeve 410 to ensure that at this time The elastic force of the second spring 413 to the sliding sleeve 411 is the same as the pressure of the first spring 406 to the limit plate 407 . The extension rod 412 is welded on the upper end surface of the guide tube 409 to ensure that the top of the extension rod 412 abuts against the limit plate 407 at this time. On the bottom surface, one end of the medicine tube 408 is sealed and connected with a permanent magnet 4081, and the other end is connected with a scalp needle. The permanent magnet 4081 is adsorbed on the limit plate 407, the inside of the scalp needle is sealed by the fruit wax block 4085, and the inside of the medicine tube 408 can be slidably installed There is a piston 4082. The piston 4082 divides the medicine tube 408 into a high pressure chamber 4083 and a medicine chamber 4084. The medicine chamber 408 is filled with medicine liquid. , one end of the connecting rod 416 is welded on the guide tube 409, A ratchet structure 417 is installed on the rear side wall of the disc 4. The ratchet structure 417 is shown in FIG. 11. A disc 4171 is hinged with a plurality of pawls 4172, and a plurality of limit positions are installed on the disc 4171 corresponding to the pawls 4172. Block 7143, the limit block 7143 can prevent the pawl 7142 from rotating clockwise, the ratchet structure 417 is fitted with a ratchet rack 418 to ensure that the ratchet rack 418 moves down to drive the ratchet structure 417 to rotate, and the ratchet rack 418 cannot drive the ratchet when it moves up. The structure 417 rotates, the connecting block 419 at the bottom of the ratchet rack 418 is provided with a sliding slot 420, the front side of the rotating plate 4 is installed with a rotating shaft 204, and the rotating shaft 204 passes through the through hole 205 opened on the front baffle 201, at the end of the rotating shaft 204 A nut 202 for limiting is screwed, and a box body 3 is connected to the rear baffle 203. The inner bottom surface of the box body 3 is vertically welded with a sliding pipe 302, and a sliding rod 303 is inserted in the sliding pipe 302. The box body 3 A round hole 301 is opened at the top, a button 304 is inserted in the round hole 301, the bottom end of the button 304 abuts on the top of the sliding rod 303, a fixing rod 421 is horizontally installed on the sliding rod 303, and the fixing rod 421 is welded on the top of the ratchet rack 418 .

working principle:

The device is worn through the wristband 1, the rotating disk 4 is partially exposed from the opening at the bottom of the casing 2 and is in contact with the human skin, and the button 304 is pressed down, the button 304 drives the slide bar 303 to move down, and the slide bar 303 moves down The ratchet rack 418 will be driven down by the fixed rod 421, and the ratchet rack 418 will move down to drive the ratchet structure 417 to rotate. Rearwardly shrink into the installation slot 401, at this time the connecting rod 416 is located in the sliding slot 420, the ratchet rack 418 is disengaged from the ratchet structure 417, the pressing plate 414 shrinks to drive the top rod 411 to move upward and open the hook 403, after the hook 403 is opened The limit plate 407 moves downward under the action of the first spring 406. During the downward movement of the limit plate 407, the medicine tube 408 is pushed down. When the limit plate 407 moves down to the lowest point, the bottom of the medicine tube 408 will move downward. The scalp needle will puncture the skin and enter the patient's body, and the body temperature will melt the fruit wax block 4085 in the scalp needle needle tube. Because the temperature in the cold zone is low all year round, the ambient temperature will not cause the fruit wax to melt. After the fruit wax block 4085 melts, the needle cannula guide After the liquid medicine is injected, the button 304 is released, and the ratchet rack 418 has no external force. Under the action of the second spring 413, the guide tube 409 is pushed upward to guide the The upward movement of the tube 409 drives the extension rod 412 to move upward, and the upward movement of the extension rod 412 pushes the limit plate 407 to move upward, and the upward movement of the limit plate 407 drives the pharmaceutical tube 408 to move upward, and the scalp needle is pulled out from the human body, and the limit plate 407 moves upward. When the 407 is moved to the hook 403 again, the ratchet rack 418 and the button 304 are reset to the original position before the force is applied. 202 Open the front baffle 201, and replace the medicine tube 408 in the installation groove 401.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (4)

1. A drug administration device for targeted drugs in frigid zone comprises a wrist strap (1), a shell (2), a front baffle (201), a rear baffle (203), a rotating disc (4) and a drug tube (408), wherein the wrist strap (1) is installed on the shell (2), the shell (2) is provided with a notch, the front baffle (201) and the rear baffle (203) are connected to two end faces of the shell (2) in a sealing manner, the front baffle (201) and the rear baffle (203) are respectively provided with a platform which is flush with the notch, the middle part of the front baffle (201) is provided with a through hole (205), a rotating shaft (204) is inserted into the through hole (205), one end of the rotating shaft (204) is in threaded connection with a nut (202), the other end of the rotating shaft (204) is welded with the rotating disc (4) together in a coaxial line, and the rotating disc (4) is positioned inside the shell (2), the rotating disc (4) at least partially can extend to the outside from the gap, a plurality of mounting grooves (401) are formed in one end face of the rotating disc (4), a sliding hole (404) is formed in the inner wall of one side of the mounting groove (401), a guide rod (405) is inserted in the sliding hole (404), a first spring (406) is sleeved on the guide rod (405), the end part of the guide rod (405) is welded on a limiting plate (407), rotating grooves (402) are formed in two sides of the inner wall of the mounting groove (401), a clamping hook (403) is hinged in the rotating grooves (402), the limiting plate (407) can be clamped on the clamping hook (403), a guide pipe (409) is slidably connected in the mounting groove (401), sliding sleeves (401) are mounted on two sides of the guide pipe (409), and the axis of the sliding sleeve (410) is parallel to the axis of the guide pipe (409), a top rod (411) is slidably mounted in the sliding sleeve (410), one end of the top rod (411) extends out of the mounting groove (401) and is provided with an arc-shaped pressing plate (414), a second spring (413) is sleeved on the top rod (411) between the sliding sleeve (410) and the pressing plate (414), an extension rod (412) is mounted on the end face of one end of the guide tube (409), and the extension rod (412) can abut against the limiting plate (407);

the medicine tube (408) is slidably arranged in the guide tube (409), the medicine tube (408) is detachably connected to the limit plate (407), a notch (415) is arranged on the inner side wall of the mounting groove (401), a connecting rod (416) is slidably arranged in the notch (415), one end of the connecting rod (416) is welded on the guide pipe (409), the other end surface of the rotating disc (4) is coaxially welded with a ratchet wheel structure (417), a ratchet bar (418) is meshed on the ratchet wheel structure (417), a connecting block (419) is arranged at the bottom end of the ratchet bar (418), the connecting block (419) is provided with a sliding groove (420), the connecting rod (416) can be connected in the sliding groove (420) in a sliding way, the rear baffle (203) is provided with a driving structure, and the driving structure can drive the ratchet bar (418) to vertically move.

2. The administration device for targeted drugs in cold regions according to claim 1, wherein the linkage (416) has at least a first operating state and a second operating state, the first operating state is that when the ratchet bar (418) is disengaged from the ratchet structure (417), the linkage (416) is located in the sliding groove (420), and an interaction force is generated between the sliding groove (420) and the linkage (416);

the second working state is that the connecting rod (416) is separated from the sliding groove (420), the limiting plate (407) is clamped on the clamping hook (403), and the elastic force applied to the guide pipe (409) by the second spring (413) is the same as the elastic force applied to the limiting plate (407) by the first spring (406).

3. The drug administration device for the targeted drugs in the frigid zone according to claim 1, wherein the driving structure comprises a box body (3), the box body (3) is communicated with the rear baffle (203), a sliding tube (302) is vertically welded on the bottom surface inside the box body (3), a sliding rod (303) is inserted into the sliding tube (302), a circular hole (301) is formed in the top of the box body (3), a button (304) is inserted into the circular hole (301), the bottom end of the button (304) abuts against the top end of the sliding rod (303), a fixing rod (421) is horizontally installed on the sliding rod (303), and the fixing rod (421) is fixedly connected to the top of the ratchet bar (418).

4. The administration device for the targeted drugs in the frigid regions, according to claim 1, wherein the drug tube (408) has a permanent magnet (4081) hermetically connected to one end thereof, and a scalp needle communicating with the other end thereof, the permanent magnet (4081) is attached to the position-limiting plate (407), the scalp needle is internally sealed by a fruit wax block (4085), a piston (4082) is slidably installed inside the drug tube (408), and the piston (4082) divides the drug tube (408) into a high-pressure chamber (4083) and a drug chamber (4084).

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