CN221357981U - Intelligent control joint is with device of dosing - Google Patents

Abstract

The utility model discloses an intelligent controlled drug delivery device for joints in the field of medical instruments, comprising a syringe pump, the syringe pump comprising a shell and a control system embedded in the shell, an injection chamber and a liquid storage chamber further provided in the shell, the liquid storage chamber and the injection chamber are connected to provide injection liquid for the injection chamber, a liquid pushing piston is provided in the injection chamber, and an injection head is provided on the injection chamber; a joint catheter, the joint catheter is connected to the injection head through an infusion tube, and a fixed structure is provided outside the joint catheter to fix the joint catheter on the human body; a liquid pushing device, the liquid pushing device and the control system are electrically connected to control the liquid pushing device through the control system; the beneficial effects of the utility model are: by arranging a syringe pump with timed quantitative injection and liquid storage functions and a joint catheter to realize drug injection into the joint cavity, drug delivery can be realized intelligently and conveniently, and at the same time, the damage caused by multiple injections and the increased risk of infection can be avoided, thereby reducing the damage to the patient.

Description

A drug delivery device for intelligently controlling joints

Technical Field

The utility model relates to the technical field of medical instruments, and in particular to a drug delivery device for intelligently controlling joints.

Background technique

Intra-articular injection is usually performed after joint infection surgery or joint puncture surgery. The purpose is to continuously administer the drug multiple times to control the infection in the joint and save the joint function. At present, syringes are usually used for joint cavity extraction and drug injection, but conventional syringes can only be used for one extraction or injection. When performing joint cavity injection on patients, sometimes it is necessary to inject multiple different drugs, or before the injection, it is necessary to extract the excess fluid in the patient's joint cavity or perform joint fluid testing, or the same drug needs to be injected multiple times at intervals. Therefore, multiple syringes are needed for multiple punctures, which increases the pain of the patient.

To this end, we propose an intelligent controlled joint drug delivery device.

Summary of the invention

In view of the above-mentioned deficiencies in the prior art, the utility model provides an intelligently controlled drug delivery device for joints.

In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the utility model is:

An intelligent controlled joint medication device comprises an injection pump, which comprises a shell and a control system embedded in the shell. An injection chamber and a liquid storage chamber are also arranged in the shell. The liquid storage chamber and the injection chamber are connected. The liquid storage chamber provides injection liquid for the injection chamber. A first one-way structure is arranged between the liquid storage chamber and the injection chamber to prevent the injection liquid from flowing back into the liquid storage chamber. A liquid pushing piston is arranged in the injection chamber. An injection head is arranged on the injection chamber. A second one-way structure is arranged in the injection head to prevent the injection liquid from flowing back into the injection chamber; a joint catheter is connected to the injection head through an infusion tube, a fixed structure is arranged outside the joint catheter, and the fixed structure fixes the joint catheter to the human body; a liquid pushing device is arranged on the shell to push the liquid pushing piston, and the liquid pushing device and the control system are electrically connected so as to control the liquid pushing device through the control system.

An injection pump and a joint catheter are provided, and a liquid storage chamber and an injection chamber are provided in the injection pump. When in use, the joint catheter is first punctured and inserted into the patient's joint cavity, and the joint catheter is fixed by a fixed structure to prevent the joint catheter from shifting and causing pain to the patient. The medicine is then injected into the patient's joint cavity through the injection pump and the infusion tube. The control system can realize injection control of the injection pump to achieve timed and quantitative injection. Even if multiple doses or injections of multiple drugs are required, multiple punctures are not required, which reduces the patient's pain. During injection, the liquid pushing piston is pressed down, and the medicine is pushed out from the injection head. After the injection is completed, the liquid pushing piston rises, and the negative pressure sucks the medicine in the liquid storage chamber into the injection chamber for the next injection.

It is further defined that the first unidirectional structure and the second unidirectional structure are both unidirectional membranes, the liquid storage chamber and the injection chamber are connected by a liquid passage tube, and the first unidirectional structure is arranged in the liquid passage tube; using a unidirectional membrane as a unidirectional structure to prevent the backflow of the drug solution is very convenient and has a simple structure.

It is further defined that the fixing structure includes a fixing sleeve and a fixing strap, the height of the fixing sleeve matches the height of the needle seat of the joint catheter, an inclined cut is provided at the bottom of the fixing sleeve so that the inclination of the fixing sleeve matches the inclination of the needle seat of the joint catheter, a stabilizing ring is provided on the bottom end surface of the fixing sleeve, and the fixing strap is provided on the circumferential surface of the fixing sleeve.

A fixed sleeve is set to protect the needle seat of the joint catheter, which can prevent the needle seat from shifting due to touch and causing pain to the patient. The shifting and bending will cause blockage in the channel of the joint catheter hose, affecting the injection effect. An inclined cut is set at the bottom of the fixed sleeve to match the inclined insertion angle of the joint catheter, so that the protection effect is better. The stabilizing ring can enhance the stability of the fixed sleeve.

It is further defined that the liquid pushing device includes a liquid pushing screw, a liquid pushing box, a liquid pushing worm, a liquid pushing worm wheel and a liquid pushing motor; the liquid pushing box is connected to the top of the injection chamber through a base plate, the liquid pushing worm and the liquid pushing worm wheel are meshed and both are arranged in the liquid pushing box, the liquid pushing motor is fixed on the liquid pushing box, the liquid pushing worm is fixedly connected to the output shaft of the liquid pushing motor, a threaded hole is provided in the liquid pushing worm wheel, the threaded hole in the liquid pushing screw and the liquid pushing worm wheel is meshed and penetrated in the liquid pushing worm wheel, a limiting groove is provided on the liquid pushing screw along the axial direction, and a limiting block matching the limiting groove is provided on the liquid pushing box.

The pushing motor drives the pushing worm to rotate, and the pushing worm and the pushing worm wheel are engaged to drive the pushing worm wheel to rotate. The pushing worm wheel rotates, and the pushing screw and the pushing worm wheel are threadedly connected. The pushing screw cannot rotate due to the limit groove and the limit block. The pushing screw will realize axial sliding to push the pushing piston for injection.

It is further defined that the control system includes a control chip, an operation panel and a display screen; the control chip is embedded in the shell, the operation panel and the display screen are embedded in the shell surface, the liquid pushing motor, the operation panel and the display screen are electrically connected to the control chip, the operation panel is used to set parameters, and the display screen is used to display parameters; the control system is set up in this way to set and display timing and quantitative parameters, which is convenient to use.

It is further defined that a liquid filling port is provided at the top of the liquid storage cavity, and a sealing cover is provided on the liquid filling port for sealing; it is safer to provide a sealing cover at the liquid filling port to prevent the liquid medicine from being contaminated.

It is further defined that a rotating hole is opened on the circumferential surface of the fixed sleeve, a rotating pin is arranged in the rotating hole, the rotating pin is inserted into the rotating hole, the fixing strap is inserted on the rotating pin, the outer end of the rotating pin is provided with an anti-slip plate, and the inner end is provided with a limiting pin head; in this way, the fixing strap is limited by the anti-slip plate at the outer end of the rotating pin to prevent it from slipping off the rotating pin, the rotating pin makes the fixing angle of the fixing strap adjustable, and it is more comfortable to fix the fixing sleeve by the fixing strap at different positions, and the fixing strap will not bend to form a convex node.

It is further defined that the joint catheter includes a drug administration tube and an extraction tube, which are arranged in parallel to form a double-row tube, the drug administration tube is connected to the infusion tube, and an opening and closing valve is provided at the outer end of the extraction tube; the joint catheter is arranged into a double-row tube shape, and an extraction tube is provided to facilitate the extraction of joint cavity effusion.

It is further defined that the dosing tube and the extraction tube are provided with anti-blocking holes on the tube wall near the inner end; the anti-blocking holes on the tube wall near the inner end can prevent the inner end from being blocked and affecting the dosing or the extraction of the accumulated fluid.

The beneficial effects of the utility model are as follows: by providing an injection pump and a joint catheter with the functions of timed quantitative injection and liquid storage to realize injection into the joint cavity, drug administration can be intelligently and conveniently performed, while the increased risk of harm and infection caused by multiple injections can be avoided, thereby reducing harm to patients.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a front view of the utility model;

FIG2 is a schematic diagram of the internal structure of the housing of the utility model from a front view perspective;

Fig. 3 is a top view of the utility model;

FIG4 is a schematic diagram of the structure of the fixing sleeve and the fixing strap;

FIG5 is a schematic diagram of the structure of a rotating pin;

FIG6 is a schematic diagram of the internal structure of the liquid pusher box;

FIG. 7 is a schematic diagram showing the connection of electrical components.

The symbols of the components are as follows:

Injection pump 1, shell 11, injection chamber 12, liquid pushing piston 121, injection head 122, second one-way structure 123, liquid storage chamber 13, liquid filling port 131, cover 132, control chip 14, operation panel 15, display screen 16, joint catheter 2, drug delivery tube 21, extraction tube 22, opening and closing valve 23, anti-blocking hole 24, liquid pushing device 3, liquid pushing screw 31, limiting groove 311, liquid pushing box body 32, limiting block 321, liquid pushing worm 33, liquid pushing worm gear 34, liquid pushing motor 35, liquid passage tube 4, first one-way structure 5, infusion tube 6, fixed sleeve 7, stabilizing ring 71, rotating pin 72, anti-slip plate 721, limiting pin head 722, fixing strap 8, bottom plate 9.

Detailed ways

The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

Example:

As shown in Figures 1 to 7, an intelligent controlled joint medication device includes an injection pump 1, a joint placement tube 2 and a liquid pushing device 3. The injection pump 1 includes a shell 11 and a control system embedded in the shell 11. The shell 11 is also provided with an injection chamber 12 and a liquid storage chamber 13. The liquid storage chamber 13 and the injection chamber 12 are connected by a liquid passage 4. A first one-way structure 5 is provided between the liquid storage chamber 13 and the injection chamber 12 to prevent the injection liquid from flowing back into the liquid storage chamber 13. The first one-way structure 5 is provided in the liquid passage 4. A liquid filling port 131 is provided at the top of the liquid storage chamber 13, and a cover 132 is provided on the liquid filling port 131 for sealing; a liquid pushing piston 121 is provided in the injection chamber 12, and an injection head 122 is provided on the injection chamber 12. A second one-way structure 123 is provided in the injection head 122 to prevent The injection liquid flows back into the injection cavity 12, and the first unidirectional structure 5 and the second unidirectional structure 123 are both unidirectional membranes; the joint catheter 2 includes a drug delivery tube 21 and an extraction tube 22, which are arranged in parallel to form a double-row tube, and an opening and closing valve 23 is provided at the outer end of the extraction tube 22, and anti-blocking holes 24 are opened on the tube wall near the inner end of the drug delivery tube 21 and the extraction tube 22; the drug delivery tube 21 is connected to the injection head 122 through the infusion tube 6, and a fixed structure is provided outside the joint catheter 2, and the fixed structure fixes the joint catheter 2 on the human body, and the fixed structure includes a fixed sleeve 7 and a fixed strap 8, the height of the fixed sleeve 7 matches the height of the needle seat of the joint catheter 2, and an inclined cut is provided at the bottom of the fixed sleeve 7 so that the inclination of the fixed sleeve 7 matches the needle seat of the joint catheter 2 The seat inclination matches that of the seat. A stabilizing ring 71 is arranged on the bottom end face of the fixed sleeve 7. A rotating hole is opened on the circumference of the fixed sleeve 7. A rotating pin 72 is arranged in the rotating hole. The rotating pin 72 is inserted into the rotating hole. The fixed strap 8 is inserted into the rotating pin 72. The outer end of the rotating pin 72 is provided with an anti-slip plate 721, and the inner end is provided with a limit pin head 722; the liquid pushing device 3 is arranged on the shell 11 to push the liquid pushing piston 121. The liquid pushing device 3 includes a liquid pushing screw 31, a liquid pushing box body 32, a liquid pushing worm 33, a liquid pushing worm wheel 34 and a liquid pushing motor 35; the liquid pushing box body 32 is connected to the top of the injection cavity 12 through a bottom plate 9, and the liquid pushing worm 33 and the liquid pushing worm wheel 34 are meshed and are both arranged in the liquid pushing box body 32. The liquid pushing motor 35 adopts a stepping reduction motor. The motor 35 is fixedly arranged on the liquid pushing box body 32, the liquid pushing worm 33 is fixedly connected to the output shaft of the liquid pushing motor 35, a threaded hole is opened in the liquid pushing worm wheel 34, the liquid pushing screw 31 and the threaded hole in the liquid pushing worm wheel 34 are meshed and penetrated in the liquid pushing worm wheel 34, a limiting groove 311 is opened axially on the liquid pushing screw 31, and a limiting block 321 matching the limiting groove 311 is provided on the liquid pushing box body 32; the control system includes a control chip 14, an operation panel 15 and a display screen 16; the control chip 14 is embedded in the shell 11, the operation panel 15 and the display screen 16 are embedded in the surface of the shell 11, the liquid pushing motor 35, the operation panel 15, and the display screen 16 are all electrically connected to the control chip 14, the operation panel 15 is used to set parameters, and the display screen 16 is used to display parameters.

By setting up an injection pump 1 and a joint catheter 2, a liquid storage chamber 13 and an injection chamber 12 are set in the injection pump 1. When in use, the joint catheter 2 is first punctured to be inserted into the patient's joint cavity, and the joint catheter 2 is fixed by a fixing structure to prevent the joint catheter 2 from shifting and causing pain to the patient, and then the liquid medicine is injected into the patient's joint cavity through the injection pump 1 and the infusion tube 6. The control system can realize the injection control of the injection pump 1 and realize the injection of timed and quantitative. Even if multiple administrations or injections of multiple drugs are required, multiple punctures are not required, which reduces the pain of the patient. During the injection, the liquid pushing piston 121 is pressed down. , the drug liquid is pushed out from the injection head 122, and the liquid pushing piston 121 rises after the injection is completed. The negative pressure sucks the drug liquid in the liquid storage chamber 13 into the injection chamber 12 for the next injection; it is very convenient to use a one-way membrane as a one-way structure to prevent the drug liquid from flowing back, and the structure is simple; a fixed sleeve 7 is set to protect the needle seat of the joint catheter 2, which can prevent the needle seat from shifting due to touch and causing pain to the patient, and the shifting and bending will cause the channel of the joint catheter 2 hose to be blocked, affecting the injection effect, and an inclined cut is set at the bottom of the fixed sleeve 7 to match the inclined insertion angle of the joint catheter 2 to achieve a better protection effect. The stabilizing ring 71 can enhance the fixing stability of the fixed sleeve 7; the pushing motor 35 drives the pushing worm 33 to rotate, the pushing worm 33 and the pushing worm wheel 34 are engaged to drive the pushing worm wheel 34 to rotate, the pushing worm wheel 34 rotates and the pushing screw 31 and the pushing worm wheel 34 are threadedly connected, and the pushing screw 31 cannot rotate due to the limit groove 311 and the limit block 321, the pushing screw 31 will realize axial sliding to push the pushing piston 121 for injection; the control system is set in this way to set and display the timing and quantitative parameters, which is convenient for use; a cover is set at the liquid filling port 131 132 is safer and prevents the drug solution from being contaminated; in this way, the fixing strap 8 is limited by the anti-slip plate 721 at the outer end of the rotating pin 72 to prevent it from slipping off the rotating pin 72. The rotating pin 72 makes the fixing angle of the fixing strap 8 adjustable. It is more comfortable to fix the fixing sleeve 7 at different positions by the fixing strap 8, and the fixing strap 8 will not bend to form a convex node; the joint catheter 2 is set to a double-row tube shape, and an extraction tube 22 is set to facilitate the extraction of joint cavity effusion; an anti-blocking hole 24 is opened on the tube wall near the inner end to prevent the inner end from being blocked and affecting the drug administration or effusion extraction.

Claims (9)

1. An intelligent control joint is with device of dosing, characterized in that includes:

The injection pump (1), the injection pump (1) comprises a shell (11) and a control system embedded in the shell (11), an injection cavity (12) and a liquid storage cavity (13) are further arranged in the shell (11), the liquid storage cavity (13) is communicated with the injection cavity (12), and the liquid storage cavity (13) provides injection for the injection cavity (12); a first unidirectional structure (5) is arranged between the liquid storage cavity (13) and the injection cavity (12) to prevent injection from flowing back into the liquid storage cavity (13); a liquid pushing piston (121) is arranged in the injection cavity (12), an injection head (122) is arranged on the injection cavity (12), and a second one-way structure (123) is arranged in the injection head (122) to prevent injection liquid from flowing back into the injection cavity (12);

The joint tube (2) is connected to the injection head (122) through a transfusion tube (6), a fixing structure is arranged outside the joint tube (2), and the joint tube (2) is fixed on a human body through the fixing structure;

The liquid pushing device (3), the liquid pushing device (3) is arranged on the shell (11) to push the liquid pushing piston (121), and the liquid pushing device (3) is electrically connected with the control system so as to control the liquid pushing device (3) through the control system.

2. The device for intelligently controlling the joint drug delivery according to claim 1, wherein the first unidirectional structure (5) and the second unidirectional structure (123) are unidirectional films, the liquid storage cavity (13) and the injection cavity (12) are communicated through a liquid passing pipe (4), and the first unidirectional structure (5) is arranged in the liquid passing pipe (4).

3. The device for intelligently controlling the joint drug delivery according to claim 2, wherein the fixing structure comprises a fixing sleeve (7) and a fixing strap (8), the height of the fixing sleeve (7) is matched with the height of the needle seat of the joint tube (2), an inclined notch is formed in the bottom of the fixing sleeve (7) so that the inclination of the fixing sleeve (7) is matched with the inclination of the needle seat of the joint tube (2), a stabilizing ring (71) is arranged on the bottom end face of the fixing sleeve (7) in a surrounding mode, and the fixing strap (8) is arranged on the peripheral face of the fixing sleeve (7).

4. The intelligent control joint drug delivery device according to claim 3, wherein the liquid pushing device (3) comprises a liquid pushing screw rod (31), a liquid pushing box body (32), a liquid pushing worm (33), a liquid pushing worm wheel (34) and a liquid pushing motor (35);

The utility model discloses a liquid injection device, including injection cavity (12) and including injection cavity, injection cavity (34) and push away liquid box (32), push away liquid box (32) are connected through a bottom plate (9) the top of injection cavity (12), push away liquid worm (33) with push away liquid worm wheel (34) meshing, all locate in push away liquid box (32), push away liquid motor (35) fixed location on push away liquid box (32), push away liquid worm (33) with push away the output shaft fixed connection of liquid motor (35), set up threaded hole in push away liquid worm wheel (34), push away liquid lead screw (31) with the threaded hole in push away liquid worm wheel (34) is engaged with and is worn to establish in push away liquid worm wheel (34), set up spacing groove (311) along the axial on push away liquid lead screw (31), be equipped with on push away liquid box (32) with spacing groove (311) assorted stopper (321).

5. The intelligent control joint drug delivery device according to claim 4, wherein the control system comprises a control chip (14), an operation panel (15) and a display screen (16);

The control chip (14) is embedded in the shell (11), the operation panel (15) and the display screen (16) are embedded in the surface of the shell (11), the liquid pushing motor (35), the operation panel (15) and the display screen (16) are electrically connected with the control chip (14), the operation panel (15) is used for setting parameters, and the display screen (16) is used for displaying the parameters.

6. The intelligent control joint drug delivery device according to claim 1, wherein a liquid filling opening (131) is arranged at the top of the liquid storage cavity (13), and a sealing cover (132) is arranged on the liquid filling opening (131) for sealing.

7. The device for intelligently controlling the joint drug delivery according to claim 3, wherein a rotating hole is formed in the peripheral surface of the fixed sleeve (7), a rotating pin (72) is arranged in the rotating hole, the rotating pin (72) is arranged in the rotating hole in a penetrating mode, the fixed binding band (8) is arranged on the rotating pin (72) in a penetrating mode, an anti-falling plate (721) is arranged at the outer end head of the rotating pin (72), and a limiting pin head (722) is arranged at the inner end head of the rotating pin.

8. The intelligent control joint drug delivery device according to claim 1, wherein the joint drug delivery tube (2) comprises a drug delivery tube (21) and an extraction tube (22), the drug delivery tube (21) and the extraction tube (22) are arranged in parallel to form a double-row tube, the drug delivery tube (21) is connected to the infusion tube (6), and an opening and closing valve (23) is arranged at the outer end of the extraction tube (22).

9. The intelligent control joint drug delivery device according to claim 8, wherein the drug delivery tube (21) and the extraction tube (22) are provided with anti-blocking holes (24) on the tube wall near the inner end.