Auxiliary device for endocrine hormone injection

Abstract

The invention relates to the technical field of medical syringes, and discloses an endocrine hormone injection auxiliary device, which comprises a syringe mechanism, a needle cylinder mechanism, a needle cylinder mechanism, a needle cylinder mechanism and a needle cylinder mechanism, and the constant pressure mechanism is arranged on the needle cylinder and is used for providing constant pressure to drive the cylinder piston. According to the endocrine hormone injection auxiliary device, a constant-pressure mechanism is arranged, based on the conversion principle of gravity and air pressure, the gravity is converted into constant air pressure by placing a weight with the fixed weight on a top light disc, and a cylinder piston is pushed to move in a needle cylinder at the uniform speed; and the problem of unstable injection speed caused by non-uniform hand force during manual injection is avoided. Meanwhile, the moving distance of the top light disc is accurately controlled by rotating the threaded rod, then the amount of air extruded out of the middle corrugated pipe is determined, accurate control over the liquid medicine output amount is achieved, and the requirements of patients with chronic diseases or the weak for accurate, stable and slow injection are met.

Description

Technical Field

[0001] The present invention relates to the technical field of medical syringes, in particular to an endocrine hormone injection auxiliary device. Background Art

[0002] The Endocrinology Department is a place in the hospital that specializes in the treatment of endocrine diseases. It is mainly responsible for the clinical diagnosis and treatment of diabetes, obesity, osteoporosis, gout, lipid metabolism disorders, and diseases of the thyroid, pituitary, adrenal glands, gonads, parathyroid glands, etc. During the treatment process, it is often necessary to inject hormones into endocrine patients through an injection device.

[0003] When injecting endocrine hormones into patients with chronic diseases or the weak, it is usually necessary to use a light stimulation method to slowly push the liquid medicine in to reduce stimulation to the patient's body and avoid causing discomfort. However, existing syringes are difficult to achieve this. Existing ordinary syringes rely on manually pushing the push rod to inject the liquid medicine, and manual operation makes it difficult to accurately and continuously control the pushing speed. This is like walking with a bowl of water in your hand. It is difficult to ensure that the water flows out at a uniform and slow speed. During the injection process, slight shaking of the hand or uneven force will cause the injection speed of the liquid medicine to be unstable, and it is impossible to achieve slow and uniform pushing. Moreover, the human hand muscles will become fatigued during long-term operation, which will further aggravate the instability of the pushing speed. In addition, existing syringes do not have an effective mechanism designed specifically for slow injection. Relying solely on the operator's experience and feel, it is difficult to achieve the requirements of accurate, stable and slow injection, and cannot meet the needs of patients with chronic diseases or the weak for light stimulation injection. Summary of the Invention

[0004] Technical problems solved In response to the shortcomings of the existing technology, the present invention provides an endocrine hormone injection assist device, which solves the problem that relying on the operator's experience and feel makes it difficult to achieve the requirements of accurate, stable and slow injection, and cannot meet the needs of chronic patients or the weak for light stimulation injection.

[0005] (2) Technical solution To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an endocrine hormone injection auxiliary device, comprising: a syringe mechanism, the syringe mechanism comprising a syringe, a barrel piston, and a needle; a constant pressure mechanism, the constant pressure mechanism being arranged on the syringe, for providing a constant pressure to drive the barrel piston; an adjustment mechanism, the adjustment mechanism being arranged on the syringe, for adjusting the size of the syringe output aperture; an observation mechanism, the observation mechanism being arranged on the barrel piston, for observing the pressure in the syringe; the constant pressure mechanism comprising: a connecting hose, one end of the connecting hose being connected to the syringe, the other end of the connecting hose being connected to a hollow barrel, the inner wall of the hollow barrel being connected to a bottom hollow tube, the inner wall of the bottom hollow tube being connected to the connecting hose, the bottom hollow tube being connected to a middle corrugated tube, the end of the middle corrugated tube away from the bottom hollow tube being connected to a top lightweight disk, and a weight being placed on the top of the top lightweight disk.

[0006] Preferably, the inner wall of the syringe is connected to the outer wall of the barrel piston, and the needle is plugged into the syringe.

[0007] Preferably, the top lightweight disk is provided with an array of balls, and the weights are provided in multiple groups with different masses.

[0008] Preferably, the hollow cylinder is connected to a long hollow frame, the top lightweight disk is connected to a connecting lightweight block, a threaded rod is rotatably connected to the inner wall of the long hollow frame, a mark block is threadedly connected to the threaded rod, the mark block is slidingly connected to the inner wall of the long hollow frame, an arrow mark is provided on the mark block, and a scale is provided on the long hollow frame.

[0009] Preferably, a limiting groove is provided on the inner wall of the connecting lightweight block, and a return spring is provided on the elongated hollow frame. One end of the return spring is fixedly connected to the elongated hollow frame, and the other end of the return spring is fixedly connected to a T-shaped block, and the outer wall of the T-shaped block is slidably connected to the inner wall of the elongated hollow frame.

[0010] Preferably, the adjusting mechanism includes a through groove, which is arranged on the inner wall of the syringe, and the through groove connects the needle and the inner wall of the syringe, an annular airbag is fixedly connected to the inner wall of the through groove, and an air pressure cylinder is fixedly connected to the inner wall of the syringe, a connecting tube is connected between the air pressure cylinder and the annular airbag, one end of the connecting tube is fixedly connected to the air pressure cylinder, and the other end of the connecting tube is fixedly connected to the annular airbag, an adjusting screw is threadedly connected to the air pressure cylinder, an adjusting piston is rotatably connected to the adjusting screw, and the outer wall of the adjusting piston is connected to the air pressure cylinder piston.

[0011] Preferably, a rotating handle is provided on the adjusting screw, and the outer wall of the connecting tube is fixedly connected to the syringe.

[0012] Preferably, the observation mechanism includes a hollow connecting cylinder, which is fixedly connected to the cylinder piston, and an entrance is provided on the hollow connecting cylinder for connecting the hollow connecting cylinder with the inner wall of the syringe, and a transparent tube is connected to the hollow connecting cylinder, and the inner wall of the hollow connecting cylinder is fixedly connected to a fixing ring, and a sealing bellows is provided on the fixing ring, one end of the sealing bellows is fixedly connected to the fixing ring, and the other end of the sealing bellows is fixedly connected to a movable block, the outer wall of the movable block is slidably connected to the inner wall of the transparent tube, and a connecting spring is provided between the movable block and the inner wall of the transparent tube, one end of the connecting spring is fixedly connected to the inner wall of the transparent tube, and the other end of the connecting spring is fixedly connected to the movable block, and a scale is provided on the outer wall of the transparent tube.

[0013] Preferably, the sealing bellows is made of rubber material, and the connecting spring is a helical compression spring.

[0014] (3) Beneficial effects Compared with the prior art, the present invention provides an endocrine hormone injection assist device with the following beneficial effects: 1. This endocrine hormone injection assist device utilizes a constant pressure mechanism based on the principle of gravity and air pressure conversion. By placing a fixed weight on the top lightweight disk, gravity is converted into constant air pressure, pushing the barrel piston to move at a uniform speed within the syringe, thus avoiding the problem of unstable injection speed caused by uneven hand force during manual injection. At the same time, by rotating the threaded rod, the movement distance of the top lightweight disk is precisely controlled, and the amount of air squeezed out of the central bellows is determined, achieving precise control of the drug output, meeting the needs of patients with chronic diseases or the infirm for accurate, stable, and slow injections.

[0015] 2. This endocrine hormone injection assist device utilizes an adjustment mechanism. By turning the knob on the adjustment screw, the operator can flexibly control the position of the adjustment piston within the pneumatic cylinder, thereby adjusting the air pressure within the cylinder and the annular airbag, enabling flexible adjustment of the syringe's output diameter. When a different injection speed is required, the output diameter can be easily increased or decreased, allowing the injection process to be tailored to the patient's specific needs, meeting the personalized needs of mild stimulation injections.

[0016] 3. This endocrine hormone injection assist device utilizes an observation mechanism that can intuitively and in real time reflect the pressure within the syringe. Pressure changes within the syringe cause the sealed bellows to expand and contract, driving the movable block to slide within the transparent tube. The operator can determine the pressure and changes based on the corresponding scale on the scale on the outer wall of the transparent tube. If the pressure fluctuates abnormally, the constant pressure mechanism or regulating mechanism can be adjusted promptly to ensure uniform and constant output of the liquid medicine. This ensures the safety and stability of the injection process, solves the problem of difficult to accurately control pressure during manual injection, and meets the injection needs of patients with chronic diseases or the infirm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the cross section of the syringe of the present invention; Figure 3 This is a schematic structural diagram of the long hollow frame of the present invention; Figure 4 Schematic diagram of the cross-section of the hollow cylinder of the present invention; Figure 5 This is a schematic structural diagram of the top lightweight disk of the present invention; Figure 6 For the present invention Figure 2 Schematic diagram of the structure of the cross section at point A; Figure 7 It is a structural schematic diagram of the cross section of the air pressure cylinder of the present invention; Figure 8 It is a structural schematic diagram of the observation mechanism of the present invention; Figure 9 Schematic diagram of the structure of the transparent tube cross section of the present invention.

[0018] In the figure: 1. Injection cylinder mechanism; 11. Syringe; 12. Cylinder piston; 13. Needle; 2. Constant pressure mechanism; 21. Connecting hose; 22. Hollow cylinder; 23. Bottom hollow tube; 24. Middle bellows; 25. Top lightweight disk; 26. Weight; 27. Connecting lightweight block; 28. Threaded rod; 29. ​​Standard block; 210. Long hollow frame; 211. Limiting groove; 212. Return spring; 213. T-block; 3. Adjusting mechanism; 31. Through groove; 32. Annular airbag; 33. Air pressure cylinder; 34. Connecting pipe; 35. Adjusting screw; 36. Adjusting piston; 4. Observation mechanism; 41. Hollow connecting cylinder; 42. Inlet; 43. Transparent tube; 44. Fixing ring; 45. Sealing bellows; 46. Movable block; 47. Connecting spring. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-9, an endocrine hormone injection auxiliary device, including: a syringe mechanism 1, the syringe mechanism 1 includes a syringe 11, a barrel piston 12, and a needle 13. The syringe mechanism 1 is the basic part of the entire device, which is composed of a syringe 11, a barrel piston 12 and a needle 13. The syringe 11 is used to store endocrine hormone liquid medicine, and the barrel piston 12 can slide in the syringe 11 to push the liquid medicine to be output from the needle 13 to complete the injection process; a constant pressure mechanism 2, the constant pressure mechanism 2 is arranged on the syringe 11, and is used to provide a constant pressure to drive the barrel piston 12; an adjustment mechanism 3, the adjustment mechanism 3 is arranged on the syringe 11, and is used to adjust the size of the output caliber of the syringe 11; an observation mechanism 4, the observation mechanism 4 is arranged on the barrel piston 12, and is used to observe the pressure in the syringe 11; the constant pressure mechanism 2 includes: a connecting hose 21, a connecting hose One end of 21 is connected to the syringe 11, and the other end of the connecting hose 21 is connected to the hollow cylinder 22. The inner wall of the hollow cylinder 22 is connected to the bottom hollow tube 23. The inner wall of the bottom hollow tube 23 is connected to the connecting hose 21. The bottom hollow tube 23 is connected to the middle corrugated tube 24. The end of the middle corrugated tube 24 away from the bottom hollow tube 23 is connected to the top light disk 25. A weight 26 is placed on the top of the top light disk 25. The constant pressure mechanism 2 is a key part to achieve uniform and constant output of the liquid medicine. Its working principle is based on the conversion of gravity and air pressure. The hollow cylinder 22 is placed on a plane, and a weight 26 is placed on the top light disk 25. The weight of the weight 26 squeezes the top light disk 25 under the action of gravity, causing it to move downward. The top light disk 25 then squeezes the middle corrugated tube 24, causing the air in the bellows to be compressed. Compressed air enters the syringe 11 through the bottom hollow tube 23 and the connecting hose 21, exerting pressure on the piston 12 inside the syringe 11. Because the weight of the weight 26 is fixed, the pressure on the top lightweight disk 25 remains constant under constant gravity, thereby maintaining a constant pressure on the compressed air within the central bellows 24. This constant air pressure acts on the piston 12, pushing it to move at a uniform speed within the syringe 11, thereby evenly dispensing the liquid medicine in the syringe 11 through the needle 13. This method avoids the problem of unstable injection speed caused by uneven hand pressure during manual injection, ensuring a uniform and constant delivery of liquid medicine. The inner wall of the syringe 11 is connected to the outer wall of the piston 12, and the needle 13 is inserted into the syringe 11. The top lightweight disk 25 is arrayed with balls to reduce friction between it and the inner wall of the hollow barrel 22. The weights 26 are provided in multiple groups of different masses.

[0021] The hollow tube 22 is connected with a strip hollow frame 210, and the top light disk 25 is connected with a connection light block 27. The inner wall of the strip hollow frame 210 is rotated and connected with a threaded rod 28. The threaded rod 28 is threaded with a block 29. The block 29 is slidably connected with the inner wall of the strip hollow frame 210. The block 29 is provided with an arrow mark. The strip hollow frame 210 is provided with a scale. Under the initial state, the block 29 is against the connection light block 27, which limits the downward movement of the connection light block 27 and the top light disk 25. Even if the weight 26 has downward pressure on the top light disk 25 under gravity, due to the obstruction of the block 29, the top light disk 25 can not move downward, and just will not squeeze the middle part bellows 24. The air pressure in the syringe 11 can not change, and the cylinder piston 12 can not be pushed, and the medicinal liquid can not be output. When needs start to inject, the operator rotates the threaded rod 28. Because threaded rod 28 and block 29 are threadedly connected, and block 29 can only slide along the inner wall of elongated hollow frame 210, rotating threaded rod 28 drives block 29 downward along the inner wall of elongated hollow frame 210. The operator can move block 29 to the set scale position on the scale gauge according to the actual injection needs. When block 29 reaches the set scale, it no longer interferes with connecting lightweight block 27. At this point, the gravity of weight 26 acts again on top lightweight disk 25, causing it to begin moving downward. Since block 29 has already moved to the set position, top lightweight disk 25 moves downward to the position corresponding to block 29's set scale. As top lightweight disk 25 moves downward, it squeezes the middle bellows 24, forcing the air inside the bellows into syringe 11 through bottom hollow tube 23 and connecting hose 21, pushing piston 12 to move and discharge the liquid medicine in syringe 11. Moving to the set scale means that the moving distance of the top lightweight disk 25 is precisely controlled, so that the amount of air squeezed out of the middle bellows 24 is determined, and the increased air pressure in the syringe 11 is also determined, ultimately achieving precise control of the output of the liquid medicine.

[0022] A limiting groove 211 is defined on the inner wall of the connecting lightweight block 27. A return spring 212 is provided on the elongated hollow frame 210. One end of the return spring 212 is fixedly connected to the elongated hollow frame 210, and the other end of the return spring 212 is fixedly connected to a T-shaped block 213. The outer wall of the T-shaped block 213 is slidably connected to the inner wall of the elongated hollow frame 210. In the initial state, the connecting lightweight block 27 is plugged into the T-shaped block 213 via the limiting groove 211 defined on its inner wall. The T-shaped block 213 is slidably connected to the inner wall of the elongated hollow frame 210 and is connected to the elongated hollow frame 210 via the return spring 212. The return spring 212 is in its natural state, stably maintaining the T-shaped block 213 in its plugged position with the limiting groove 211. This plug-in structure effectively limits the movement of the connecting lightweight block 27. Since the connecting lightweight block 27 is connected to the top lightweight disk 25, the downward movement of the top lightweight disk 25 is further restricted. At this time, even if the weight 26 exerts downward pressure on the top lightweight disk 25 under the action of gravity, the top lightweight disk 25 cannot press the middle bellows 24 downward because the connecting lightweight block 27 is restricted. The air in the middle bellows 24 will not be squeezed into the syringe 11, the cylinder piston 12 will not be pushed by air pressure, and the liquid medicine in the syringe 11 will not be discharged. The device is in a locked state ready for injection. When the injection process needs to be initiated, the operator manually pulls the T-block 213. The action of pulling the T-block 213 causes the T-block 213 to overcome the elastic force of the return spring 212 and slide along the inner wall of the long hollow frame 210 until the T-block 213 is no longer plugged into the limiting groove 211. Once T-block 213 separates from retaining groove 211, the retaining force on connecting lightweight block 27 is released. At this point, under the force of weight 26, top lightweight disk 25 begins to move downward. This downward movement of top lightweight disk 25 compresses middle bellows 24, allowing air within the latter to enter syringe 11 through bottom hollow tube 23 and connecting hose 21. This pressure exerts on piston 12 within syringe 11, pushing piston 12 to move and ejecting the liquid medicine within syringe 11 through needle 13, completing the injection process.

[0023] The adjustment mechanism 3 includes a through groove 31, which is provided on the inner wall of the syringe 11. The through groove 31 connects the needle 13 and the inner wall of the syringe 11. An annular airbag 32 is fixedly connected to the inner wall of the through groove 31. A pneumatic cylinder 33 is fixedly connected to the inner wall of the syringe 11. A connecting pipe 34 is connected between the pneumatic cylinder 33 and the annular airbag 32. One end of the connecting pipe 34 is fixedly connected to the pneumatic cylinder 33, and the other end of the connecting pipe 34 is fixedly connected to the annular airbag 32. An adjusting screw 35 is threadedly connected to the pneumatic cylinder 33. An adjusting piston 36 is rotatably connected to the adjusting screw 35. The outer wall of the adjusting piston 36 is connected to the piston of the pneumatic cylinder 33. When the output diameter of the liquid medicine needs to be increased, the operator rotates the adjusting screw 35 counterclockwise. Since the adjusting screw 35 is threadedly connected to the pneumatic cylinder 33, rotating the adjusting screw 35 counterclockwise will cause the adjusting screw 35 to move toward the outside of the pneumatic cylinder 33. At the same time, the adjusting piston 36, which is rotatably connected to the adjusting screw 35, slides outward within the pneumatic cylinder 33 as the adjusting screw 35 moves. This increases the space within the pneumatic cylinder 33 and reduces the air pressure. Because the pneumatic cylinder 33 is connected to the annular airbag 32 via the connecting pipe 34, some of the gas within the annular airbag 32 flows into the pneumatic cylinder 33 through the connecting pipe 34, causing the air pressure of the annular airbag 32 to decrease, thereby causing the annular airbag 32 to shrink. After the annular airbag 32 shrinks, the actual flow diameter through the groove 31 increases, widening the channel for the liquid medicine to flow from the syringe 11 to the needle 13, and accelerating the delivery of the liquid medicine. When the delivery diameter of the liquid medicine needs to be reduced, the operator rotates the adjusting screw 35 clockwise. At this time, the adjusting screw 35 moves toward the interior of the pneumatic cylinder 33, driving the adjusting piston 36 to slide inward within the pneumatic cylinder 33, reducing the space within the pneumatic cylinder 33 and increasing the air pressure. The increased air pressure compresses gas into the annular airbag 32 through the connecting tube 34, causing the air pressure in the annular airbag 32 to increase and expand. After the annular airbag 32 expands, it occupies part of the space through the slot 31, thereby reducing the actual flow diameter through the slot 31. The passage for the liquid medicine from the syringe 11 to the needle 13 becomes narrower, and the delivery speed of the liquid medicine is slowed down. By rotating the adjustment screw 35, the position of the adjustment piston 36 within the air cylinder 33 can be controlled, thereby adjusting the air pressure within the air cylinder 33 and the annular airbag 32, achieving flexible adjustment of the delivery diameter through the slot 31 to meet different injection requirements. The adjustment screw 35 is provided with a rotating handle. The outer wall of the connecting tube 34 is fixedly connected to the syringe 11 and is sealed.

[0024] The observation mechanism 4 includes a hollow connecting cylinder 41, which is fixedly connected to the cylinder piston 12. An inlet 42 is provided on the hollow connecting cylinder 41 for connecting the hollow connecting cylinder 41 with the inner wall of the syringe 11. A transparent tube 43 is connected to the hollow connecting cylinder 41. A fixing ring 44 is fixedly connected to the inner wall of the hollow connecting cylinder 41. A sealing bellows 45 is provided on the fixing ring 44. One end of the sealing bellows 45 is fixedly connected to the fixing ring 44, and the other end of the sealing bellows 45 is fixedly connected to a movable block 46. The outer wall of the movable block 46 is slidably connected to the inner wall of the transparent tube 43. A connecting spring 47 is provided between the movable block 46 and the inner wall of the transparent tube 43. One end of the connecting spring 47 is fixedly connected to the inner wall of the transparent tube 43, and the other end of the connecting spring 47 is fixedly connected to the movable block 46. A scale is provided on the outer wall of the transparent tube 43. The pressure change in the syringe 11 will be transmitted to the hollow connecting cylinder 41 through the inlet 42. When the pressure in the syringe 11 changes, the pressure acts on the inner wall of the sealing bellows 45 through the hollow connecting tube 41 and the fixed ring 44, causing the sealing bellows 45 to expand and contract. When the pressure in the syringe 11 increases, the pressure pushes the movable block 46 to slide on the inner wall of the transparent tube 43. The movable block 46 overcomes the elastic force of the connecting spring 47 and moves away from the fixed ring 44. The sealing bellows 45 is stretched and the connecting spring 47 is compressed. When the pressure in the syringe 11 decreases, the elastic force of the connecting spring 47 is greater than the force exerted by the pressure in the syringe 11 on the movable block 46, and the connecting spring 47 pushes the movable block 46 toward the fixed ring 44, causing the sealing bellows 45 to contract. Since there is a scale on the outer wall of the transparent tube 43, the position change of the movable block 46 in the transparent tube 43 can be intuitively reflected by the scale. The operator can judge the size and changes of the pressure in the syringe 11 based on the scale corresponding to the movable block 46. For example, the further the movable block 46 is from the fixed ring 44, the greater the pressure in the syringe 11; conversely, the smaller the pressure, the smaller the pressure. This can provide a real-time and intuitive reflection of the pressure in the syringe 11, helping the operator understand the status of the injection process and ensuring the safety and stability of the injection process. If the pressure fluctuates abnormally, the operator can promptly adjust the constant pressure mechanism 2 or the regulating mechanism 3 to ensure a uniform and constant output of the liquid medicine. The sealing bellows 45 is made of a rubber material with excellent elasticity and sealing properties, which can effectively prevent gas leakage. The connecting spring 47 is a helical compression spring with an elastic coefficient designed according to the normal operating pressure range of the syringe 11 to ensure that the movable block 46 can accurately reflect the pressure changes.

[0025] In summary, when using the endocrine hormone injection auxiliary device, the endocrine hormone solution is loaded into the syringe 11 , ensuring that there are no bubbles in the syringe 11 , and then the needle 13 is inserted into the syringe 11 .

[0026] Place the hollow cylinder 22 steadily on a flat surface. According to the required injection speed and pressure, select a weight 26 of appropriate mass and place it on the top lightweight disk 25. The top lightweight disk 25 is provided with an array of balls to reduce the friction between it and the inner wall of the hollow cylinder 22. Turn the threaded rod 28 in the long hollow frame 210 to move the mark block 29 downward along the inner wall of the long hollow frame 210 to the scale position set on the scale, which corresponds to the required output of the liquid medicine. Confirm that the limit groove 211 and the T-block 213 connected to the inner wall of the lightweight block 27 are in the plug-in state. At this time, the device is in a locked state to be injected, and the top lightweight disk 25 cannot squeeze the middle bellows 24 downward.

[0027] According to actual injection needs, the handle on the adjusting screw 35 is turned to adjust the size of the output aperture through the slot 31. To increase the output aperture of the liquid medicine, the adjusting screw 35 is turned counterclockwise, causing the adjusting piston 36 to slide outward within the air cylinder 33. The air pressure within the air cylinder 33 decreases, the annular airbag 32 contracts, and the flow aperture through the slot 31 increases. To decrease the output aperture of the liquid medicine, the adjusting screw 35 is turned clockwise, causing the adjusting piston 36 to slide inward within the air cylinder 33. The air pressure within the air cylinder 33 increases, the annular airbag 32 expands, and the flow aperture through the slot 31 decreases.

[0028] Manually pull T-block 213, causing it to overcome the force of return spring 212 and slide along the inner wall of elongated hollow frame 210 until T-block 213 is no longer engaged with retaining groove 211. At this point, the retaining force of connecting lightweight block 27 is released, and under the weight of weight 26, top lightweight disk 25 begins to move downward, squeezing central bellows 24. Air within central bellows 24 enters syringe 11 through bottom hollow tube 23 and connecting hose 21, exerting pressure on piston 12, pushing it forward and discharging the liquid medicine within syringe 11 through needle 13.

[0029] During the injection process, the pressure within syringe 11 is monitored in real time via observation mechanism 4. Pressure changes within syringe 11 are transmitted through inlet 42 to hollow connecting tube 41, acting on the inner wall of sealing bellows 45, causing it to expand and contract, driving movable block 46 to slide along the inner wall of transparent tube 43. The operator determines the pressure within syringe 11 and its changes based on the scale on the outer wall of transparent tube 43 corresponding to movable block 46.

[0030] If the movable block 46 moves away from the fixed ring 44 , it indicates that the pressure in the syringe 11 increases; if the movable block 46 moves closer to the fixed ring 44 , it indicates that the pressure in the syringe 11 decreases.

[0031] If the pressure fluctuates abnormally, the operator can adjust the constant pressure mechanism 2 in time, such as replacing the weight 26 or turning the adjusting screw 35, to ensure uniform and constant output of the liquid medicine.

[0032] After reaching the preset injection volume, if it is necessary to stop the injection, appropriate measures can be taken to limit the continued movement of the top light disk 25, such as re-limiting the connection light block 27. Remove the needle 13, clean the device and properly store it for next use.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

Claims

1. An endocrine hormone injection assist device, characterized in that: include: A syringe mechanism (1), the syringe mechanism (1) comprising a syringe (11), a syringe piston (12), and a needle (13); A constant pressure mechanism (2), the constant pressure mechanism (2) being arranged on the syringe (11) and being used to provide a constant pressure to drive the syringe piston (12); An adjusting mechanism (3), the adjusting mechanism (3) being arranged on the syringe (11) and being used to adjust the size of the output aperture of the syringe (11); An observation mechanism (4), the observation mechanism (4) being arranged on the barrel piston (12) and being used to observe the pressure in the syringe (11); The constant pressure mechanism (2) comprises: a connecting hose (21), one end of which is connected to the syringe (11), The other end of the connecting hose (21) is connected to a hollow cylinder (22), the inner wall of the hollow cylinder (22) is connected to a bottom hollow tube (23), the inner wall of the bottom hollow tube (23) is connected to the connecting hose (21), the bottom hollow tube (23) is connected to a middle corrugated tube (24), and the end of the middle corrugated tube (24) away from the bottom hollow tube (23) is connected to a top lightweight disk (25), and a weight (26) is placed on the top of the top lightweight disk (25).

2. The endocrine hormone injection assisting device according to claim 1, characterized in that: The inner wall of the syringe (11) is connected to the outer wall of the cylinder piston (12), and the needle (13) is plugged into the syringe (11).

3. The endocrine hormone injection assisting device according to claim 1, characterized in that: The top lightweight disk (25) is provided with an array of balls, and the weights (26) are provided with multiple groups of different masses.

4. The endocrine hormone injection assisting device according to claim 3, characterized in that: The hollow cylinder (22) is connected to a long hollow frame (210), the top lightweight disk (25) is connected to a connecting lightweight block (27), a threaded rod (28) is rotatably connected to the inner wall of the long hollow frame (210), a mark block (29) is threadedly connected to the threaded rod (28), the mark block (29) is slidably connected to the inner wall of the long hollow frame (210), an arrow mark is provided on the mark block (29), and a scale is provided on the long hollow frame (210).

5. The endocrine hormone injection assisting device according to claim 4, characterized in that: A limiting groove (211) is provided on the inner wall of the connecting lightweight block (27), and a return spring (212) is provided on the long hollow frame (210). One end of the return spring (212) is fixedly connected to the long hollow frame (210), and the other end of the return spring (212) is fixedly connected to a T-shaped block (213). The outer wall of the T-shaped block (213) is slidably connected to the inner wall of the long hollow frame (210).

6. The endocrine hormone injection assisting device according to claim 1, characterized in that: The regulating mechanism (3) includes a through groove (31), the through groove (31) is provided on the inner wall of the syringe (11), the through groove (31) connects the needle (13) and the inner wall of the syringe (11), an annular air bag (32) is fixedly connected to the inner wall of the through groove (31), an air pressure cylinder (33) is fixedly connected to the inner wall of the syringe (11), a connecting pipe (34) is connected between the air pressure cylinder (33) and the annular air bag (32), one end of the connecting pipe (34) is fixedly connected to the air pressure cylinder (33), and the other end of the connecting pipe (34) is fixedly connected to the annular air bag (32), an adjusting screw (35) is threadedly connected to the air pressure cylinder (33), an adjusting piston (36) is rotatably connected to the adjusting screw (35), and the outer wall of the adjusting piston (36) is connected to the piston of the air pressure cylinder (33).

7. The endocrine hormone injection assisting device according to claim 6, characterized in that: The adjusting screw (35) is provided with a rotating handle, and the outer wall of the connecting tube (34) is fixedly connected to the syringe (11).

8. The endocrine hormone injection assisting device according to claim 1, characterized in that: The observation mechanism (4) includes a hollow connecting cylinder (41), the hollow connecting cylinder (41) is fixedly connected to the cylinder piston (12), an inlet (42) is provided on the hollow connecting cylinder (41) for connecting the hollow connecting cylinder (41) with the inner wall of the syringe (11), a transparent tube (43) is connected to the hollow connecting cylinder (41), a fixing ring (44) is fixedly connected to the inner wall of the hollow connecting cylinder (41), a sealing bellows (45) is provided on the fixing ring (44), one end of the sealing bellows (45) is connected to the inner wall of the syringe (11), and a sealing bellows (45) is provided on the inner wall of the syringe (11). The sealing bellows (45) is fixedly connected to the fixing ring (44). The other end of the sealing bellows (45) is fixedly connected to a movable block (46). The outer wall of the movable block (46) is slidably connected to the inner wall of the transparent tube (43). A connecting spring (47) is provided between the movable block (46) and the inner wall of the transparent tube (43). One end of the connecting spring (47) is fixedly connected to the inner wall of the transparent tube (43). The other end of the connecting spring (47) is fixedly connected to the movable block (46). A scale is provided on the outer wall of the transparent tube (43).

9. The endocrine hormone injection assisting device according to claim 8, characterized in that: The sealing bellows (45) is made of rubber material, and the connecting spring (47) is a helical compression spring, the elastic coefficient of which is designed according to the normal working pressure range of the syringe (11).

Images