Low molecular weight heparin abdominal injection auxiliary positioning projection device

Abstract

The application relates to the technical field of medical instrument equipment, in particular to an auxiliary positioning projection device for low-molecular heparin abdominal injection, which comprises a base, a suction cup fixedly connected to the bottom of the base, the suction cup being adsorbed directly above the navel, and a projection positioning mechanism arranged at the top of the base. The hollow lead screw, the internal thread ring, the projection lamp, the limiting column, the limiting ring, the knob and the press-type power module are arranged, the hollow lead screw and the internal thread ring are in a threaded sleeve joint cooperation relationship, the projection lamp can move on the hollow lead screw through the internal thread ring, the projection position is adjusted, the device can position and project the subcutaneous injection area of a patient through the projection lamp, and the effect that the patient can accurately find the injection point is achieved. The small air pump, the partition plate and the air pump mounting disc are cooperated, the device can firmly adsorb the suction cup above the navel through negative pressure, and the effect that the silica gel ball can accurately position the projection aperture is achieved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an auxiliary positioning projection device for abdominal injection of low molecular weight heparin. Background Technology

[0002] Low molecular weight heparin (LMWH) is a general term for a class of heparin with lower molecular weights, prepared by depolymerizing unfractionated heparin. It is commonly used for the prevention and treatment of thrombotic diseases. The preferred injection site for LMWH is usually the subcutaneous abdomen because the abdomen has a large surface area and a relatively constant temperature, which facilitates drug absorption; at the same time, there are relatively few nerve endings in the abdomen, resulting in less pain during injection; furthermore, abdominal administration is simple and convenient for self-injection. To facilitate abdominal injection of LMWH, devices that can assist in the abdominal injection of LMWH have been developed on the market.

[0003] A search revealed that Chinese Patent CN214911927 U discloses a multi-adjustable positioning device for abdominal injection of low molecular weight heparin sodium, comprising a fixing pad, a first fixing band sewn onto the upper and lower sides of the left side of the fixing pad, a barbed band adhered to the rear side of the first fixing band, a second fixing band sewn onto the upper and lower sides of the right side of the fixing pad, and a hair band adhered to the front and back of the second fixing band, with the barbed band and hair band being compatible. An injection hole is provided on the front of the fixing pad. The above-mentioned prior art, through the design of the fixing pad, the first fixing band, the barbed band, the second fixing band, and the hair band, can facilitate adjustment and fixation according to the patient's needs, thereby achieving effective positioning and reducing the burden on medical staff to a certain extent.

[0004] However, the existing technologies still have the following shortcomings in clinical application: the existing devices have complex structures and are difficult to operate, failing to help operators quickly and accurately locate the injection point. Specifically, the existing cross-bracing frame is not convenient enough in actual use, and the repositioning operation is difficult for some patients, especially the elderly or those with limited mobility; furthermore, the repositioning operation requires a high degree of flexibility and operational ability from the patient, especially the elderly or those with limited mobility, who face considerable difficulty in accurately adjusting the horizontal tilt angle of the upper swing seat and adjusting the height using the height adjustment components on the horizontal support legs.

[0005] In view of the above situation, this utility model is hereby proposed! Utility Model Content

[0006] To address the problems mentioned in the background section, this application provides an auxiliary positioning projection device for abdominal injection of low molecular weight heparin.

[0007] This application provides an auxiliary positioning projection device for abdominal injection of low molecular weight heparin, which adopts the following technical solution: an auxiliary positioning projection device for abdominal injection of low molecular weight heparin includes a base, a suction cup is fixedly connected to the bottom of the base, the suction cup is attached to the top of the navel, and a projection positioning mechanism is provided on the top of the base.

[0008] A projection positioning mechanism includes a hollow lead screw, an internal threaded ring, a projection lamp, a limiting post, a limiting ring, a knob, and a push-button power module. The hollow lead screw is movably mounted on the top of the base. An internal threaded ring is threaded onto one side of the hollow lead screw. A projection lamp is disposed on one side of the internal threaded ring, and the projection lamps are evenly distributed on one side of the outer circumference of the internal threaded ring. The projection lamps are arranged in a circumferential array around the hollow lead screw. The limiting post is fixedly mounted on the top of the base, and a limiting ring is fixedly connected to the top of the limiting post. A knob is movably mounted on one side of the limiting ring. A push-button power module is fixedly installed inside the knob, and a power switch button is disposed on the top of the knob. The push-button power module and the internal threaded ring are wirelessly connected.

[0009] The above design, featuring a knob and a push-button power module, makes the device easier to operate. The push-button power module is wirelessly connected to the control module built into the internal threaded ring, allowing patients to easily control the switching and adjustment of the projection lamp. Furthermore, the projection content can be divided into four quadrants, each with four colors and seven numbers. Each number corresponds to one of the 28 days, and the number in the projection area is highlighted on the corresponding day.

[0010] Optionally, the projection positioning mechanism further includes a small air pump, a partition, an air pump mounting plate, a positioning column, an exhaust port, a sealing ring, and a silicone ball. The small air pump is located inside the hollow lead screw. A partition is movably fitted onto one side of the small air pump, and the partition is fixedly fitted inside the hollow lead screw, separating the air inlet and outlet of the small air pump. An air pump mounting plate is fixedly installed at the bottom of the small air pump, and an exhaust port is provided through the top of the air pump mounting plate. A positioning column is movably installed at the bottom of the air pump mounting plate, and the positioning column is fixedly installed at the top of the base. A sealing ring is movably fitted onto the bottom of the air pump mounting plate, and the sealing ring is fixedly installed at the top of the base. The silicone ball is fixedly installed at the bottom of the base. Placing the silicone ball at the bottom of the base on the patient's navel can help the device quickly complete positioning.

[0011] The above solution, which combines a small air pump with silicone balls, can further improve the adsorption stability of the equipment and ensure the accuracy of projection positioning.

[0012] Optionally, the partition divides the cavity inside the hollow lead screw into upper and lower parts, and the small air pump draws air from the bottom cavity of the hollow lead screw to the top cavity of the hollow lead screw to create a negative pressure area between the base and the bottom of the suction cup.

[0013] Through the above solution, the partition design enables the small air pump to efficiently generate negative pressure, enhance the suction force of the suction cup, and ensure the stability of the equipment.

[0014] Optionally, the air pump mounting plate is composed of a ring with a hole at the top and a retaining ring at the bottom. The positioning post is movably installed inside the cavity between the ring and the retaining ring of the air pump mounting plate, which is used to restrict the air pump mounting plate and the hollow screw fixedly sleeved on one side of the air pump mounting plate from moving up and down. The air pump mounting plate and the hollow screw can rotate around the positioning post.

[0015] The above design, with its air pump mounting plate and positioning column, allows the device to be flexibly adjusted to meet the injection needs of different patients.

[0016] Optionally, the sealing ring, air pump mounting plate, hollow screw, and partition plate together form the lower half cavity inside the hollow screw, and the cavity is connected to the semi-closed cavity at the bottom of the suction cup through a hole that passes through the base and the top of the suction cup.

[0017] The above solution ensures the sealing of the cavity, maintains the negative pressure area stably, and improves the reliability of the equipment.

[0018] Optionally, the internal threaded ring is movably sleeved on one side of the limiting post, the projection lamp and the internal threaded ring are at an angle of 45°, and the center of the light circle formed by the multi-layered rings projected by the projection lamp is a red dot, which is used to assist the patient in locating the injection point.

[0019] With the above solution, the projector lamp projects light at a 45° angle, and the central red dot design is intuitive and clear, helping patients to accurately locate the injection point and improve injection efficiency.

[0020] In summary, this application includes the following beneficial technical effects: 1. This invention is easy to operate and helps operators quickly and accurately locate the subcutaneous injection point in the abdomen to complete the injection. Specifically, with the threaded engagement between the hollow lead screw and the internal threaded ring, the projection lamp can adjust its projection position by moving the internal threaded ring on the hollow lead screw. This allows the device to project the subcutaneous injection area onto the patient, helping the operator to easily and accurately locate the injection point.

[0021] 2. This utility model, through the cooperation of a small air pump and components such as a partition and air pump mounting plate, enables the small air pump to draw air from the bottom cavity of the hollow screw to the top cavity, creating negative pressure in the area between the base and the bottom of the suction cup. This ensures that the device can firmly adhere the suction cup to the patient's navel through negative pressure, thus stably fixing the device. In addition, by placing the silicone ball at the bottom of the base of this utility model directly above the patient's navel, the operator can easily and accurately position the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the device in the embodiments of this application; Figure 2 This is a schematic diagram of a partial structure of the device in an embodiment of this application; Figure 3 This is a partial structural diagram of the projection positioning mechanism in an embodiment of this application; Figure 4 This is a schematic diagram of the partial structure installation of the projection positioning mechanism in an embodiment of this application.

[0023] Reference numerals: 1. Base; 2. Suction cup; 3. Projection positioning mechanism; 301. Hollow lead screw; 302. Internal threaded ring; 303. Projection lamp; 304. Limiting post; 305. Limiting ring; 306. Knob; 307. Press-type power module; 308. Small air pump; 309. Partition plate; 310. Air pump mounting plate; 311. Positioning post; 312. Exhaust hole; 313. Sealing ring; 314. Silicone ball. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0025] This application discloses an auxiliary positioning projection device for abdominal injection of low molecular weight heparin.

[0026] Please see Figure 1 An auxiliary positioning projection device for abdominal injection of low molecular weight heparin includes a base 1, a suction cup 2 fixedly connected to the bottom of the base 1, the suction cup 2 being attached to the top of the navel, and a projection positioning mechanism 3 being provided on the top of the base 1.

[0027] Please see Figures 2 to 4The projection positioning mechanism 3 includes a hollow lead screw 301, an internal threaded ring 302, a projection lamp 303, a limiting post 304, a limiting ring 305, a knob 306, and a push-button power module 307. The hollow lead screw 301 is movably mounted on the top of the base 1. An internal threaded ring 302 is threaded onto one side of the hollow lead screw 301. A projection lamp 303 is provided on one side of the internal threaded ring 302. The projection lamps 303 are arranged in a circumferential array around the hollow lead screw 301. The limiting post 304 is fixedly mounted on the top of the base 1. A limiting ring 305 is fixedly connected to the top of the limiting post 304. A knob 306 is movably mounted on one side of the limiting ring 305. A push-button power module 307 is fixedly installed inside the knob 306. A power switch button is provided on the top of the knob 306. The push-button power module 307 and the internal threaded ring 302 are wirelessly connected.

[0028] The projection positioning mechanism 3 also includes a small air pump 308, a partition 309, an air pump mounting plate 310, a positioning post 311, an exhaust port 312, a sealing ring 313, and a silicone ball 314. The small air pump 308 is disposed inside the hollow lead screw 301. The partition 309 is movably sleeved on one side of the small air pump 308. The partition 309 is fixedly sleeved inside the hollow lead screw 301. The partition 309 separates the air inlet and air outlet of the small air pump 308. A gas valve is fixedly installed at the bottom of the small air pump 308. The top of the pump mounting plate 310 and the air pump mounting plate 310 are both provided with exhaust holes 312. The bottom of the air pump mounting plate 310 is movably mounted with a positioning post 311, which is fixedly mounted on the top of the base 1. The bottom of the air pump mounting plate 310 is movably fitted with a sealing ring 313, which is fixedly mounted on the top of the base 1. The silicone ball 314 is fixedly mounted on the bottom of the base 1 and is placed at the patient's navel to position the light ring projected by the projection lamp 303.

[0029] The partition 309 divides the cavity inside the hollow lead screw 301 into upper and lower parts. The small air pump 308 draws air from the bottom cavity of the hollow lead screw 301 to the top cavity of the hollow lead screw 301 to create a negative pressure area at the bottom of the base 1 and the suction cup 2.

[0030] The air pump mounting plate 310 consists of a ring with a hole at the top and a retaining ring at the bottom. The positioning post 311 is movably installed inside the cavity between the ring and the retaining ring of the air pump mounting plate 310, which is used to restrict the air pump mounting plate 310 and the hollow lead screw 301 fixedly sleeved on one side of the air pump mounting plate 310 to move up and down. The air pump mounting plate 310 and the hollow lead screw 301 can rotate around the positioning post 311.

[0031] The sealing ring 313, the air pump mounting plate 310, the hollow screw 301 and the partition plate 309 together form the lower half cavity inside the hollow screw 301, and the cavity is connected to the semi-closed cavity at the bottom of the suction cup 2 through the hole through the top of the base 1 and the suction cup 2.

[0032] The internal threaded ring 302 is movably sleeved on one side of the limiting post 304. The angle between the projection lamp 303 and the internal threaded ring 302 is 45°, and the center of the light circle formed by the multi-layered rings projected by the projection lamp 303 is a red dot, which is used to help the patient locate the injection point.

[0033] Further explanation is needed: The projection positioning mechanism 3 can accurately locate the injection position. It includes a hollow lead screw 301, an internal threaded ring 302, and a projection lamp 303 that work together. By rotating the hollow lead screw 301, the internal threaded ring 302 can move up and down along the lead screw, thereby driving the projection lamp 303 to change its height and position. The projection lamp 303 is arranged in a circumferential array around the hollow lead screw 301 and forms a 45° angle with the internal threaded ring 302, projecting a light ring composed of multiple rings with a red dot at the center. This clearly shows the injectable area and precise injection point on the patient's skin, helping the patient to accurately perform subcutaneous injections and improving the accuracy and safety of the injection. At the same time, the projection lamp 303 is controlled by the push-button power module 307 inside the knob 306, making operation simple and convenient.

[0034] The projection positioning mechanism 3 ensures the stable fixation of the device. Components such as the small air pump 308, partition 309, and air pump mounting plate 310 work together. The small air pump 308 draws air from the bottom cavity of the hollow lead screw 301 to the top cavity, creating a negative pressure area at the bottom of the base 1 and the suction cup 2, allowing the suction cup 2 to be firmly attached to the area directly above the navel. The positioning post 311 restricts the vertical movement of the air pump mounting plate 310 and the hollow lead screw 301, while allowing them to rotate around the positioning post 311, facilitating the adjustment of the projection angle. In addition, the silicone ball 314 at the bottom of the base 1 is placed at the patient's navel, which can further assist in positioning the aperture projected by the projection lamp 303, ensuring the device is stable and the projection is accurate during use.

[0035] The implementation principle of the auxiliary positioning projection device for abdominal injection of low molecular weight heparin in this application is as follows: First, place the device directly above the patient's navel, ensuring the silicone ball 314 at the bottom of the base 1 is accurately positioned at the navel for positioning. Then, turn on the small air pump 308. As the partition 309 divides the cavity inside the hollow lead screw 301 into upper and lower parts, the small air pump 308 draws air from the bottom cavity of the hollow lead screw 301 to the top cavity. The lower half of the cavity inside the hollow lead screw 301, formed by the sealing ring 313, the air pump mounting plate 310, the hollow lead screw 301, and the partition 309, communicates with the semi-closed cavity at the bottom of the suction cup 2 through a hole in the top of the base 1. After the air is drawn away, a negative pressure area is created at the bottom of the base 1 and the suction cup 2, allowing the suction cup 2 to firmly adhere to the patient's skin, thus securing the device.

[0036] Next, the hollow lead screw 301 is rotated. Since the hollow lead screw 301 and the internal threaded ring 302 are threadedly connected, the internal threaded ring 302 will move up and down along the hollow lead screw 301. At the same time, the internal threaded ring 302 is movably sleeved on one side of the limiting post 304. The limiting post 304 and the limiting ring 305 limit and guide the internal threaded ring 302, ensuring its stable movement. The projection lamp 303 is installed on one side of the internal threaded ring 302. As the internal threaded ring 302 moves, the height and position of the projection lamp 303 will also change accordingly. Moreover, the air pump mounting plate 310 and the hollow lead screw 301 can rotate around the positioning post 311, which can also drive the projection lamp 303 to rotate, thereby realizing the adjustment of the projection angle to meet the injection needs of different patients.

[0037] Next, press the power switch button on the top of knob 306 to trigger the push-button power module 307. The push-button power module 307 is wirelessly connected to the power management module built into the internal threaded ring 302. The push-button power module 307 and the power management module built into the internal threaded ring 302 use a TCP / IP protocol stack to support Internet communication, thereby controlling the power supply of the projection lamp 303 and turning it on. The projection lamp 303 is arranged in a circumferential array with the hollow lead screw 301 as the axis and the angle between it and the internal threaded ring 302 is 45°. It will project a light ring composed of multiple rings, with a red dot at the center of the light ring. This projection information is clearly displayed on the patient's skin, providing a clear positioning reference for subcutaneous injection.

[0038] Next, the patient determines the specific subcutaneous injection location based on the light ring and red dot projected by the projector lamp 303. The light ring composed of multiple rings can delineate a suitable injection area, while the red dot in the center indicates the precise injection point. The patient can intuitively and accurately find the location where the injection needs to be performed, improving the accuracy and safety of the injection.

[0039] Finally, after the injection is completed, turn off the small air pump 308. At this time, the air pressure inside the hollow screw 301 gradually returns to balance, the negative pressure area at the bottom of the base 1 and the suction cup 2 disappears, and the suction cup 2 no longer adheres to the patient's skin. The device can then be easily removed from the patient's skin, completing the entire injection assistance process.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An auxiliary positioning projection device for abdominal injection of low molecular weight heparin, comprising a base (1), characterized in that: The bottom of the base (1) is fixedly connected to a suction cup (2), and the top of the base (1) is provided with a projection positioning mechanism (3). The projection positioning mechanism (3) includes a hollow lead screw (301), an internal threaded ring (302), a projection lamp (303), a limiting post (304), a limiting ring (305), a knob (306), and a push-button power module (307). The hollow lead screw (301) is movably mounted on the top of the base (1). An internal threaded ring (302) is threaded onto one side of the hollow lead screw (301). A projection lamp (303) is provided on one side of the internal threaded ring (302). The projection lamp (303) is positioned relative to the hollow lead screw (304). 01) The axial circumferential array is set. The limiting post (304) is fixedly installed on the top of the base (1). The top of the limiting post (304) is fixedly connected to the limiting ring (305). A knob (306) is movably installed on one side of the limiting ring (305). A push-type power module (307) is fixedly installed inside the knob (306). A power switch button is provided on the top of the knob (306). The push-type power module (307) and the internal threaded ring (302) are wirelessly connected.

2. The auxiliary positioning projection device for abdominal injection of low molecular weight heparin according to claim 1, characterized in that: The projection positioning mechanism (3) further includes a small air pump (308), a partition (309), an air pump mounting plate (310), a positioning post (311), an exhaust port (312), a sealing ring (313), and a silicone ball (314). The small air pump (308) is located inside the hollow lead screw (301). The partition (309) is movably sleeved on one side of the small air pump (308). The partition (309) is fixedly sleeved inside the hollow lead screw (301). The partition (309) separates the air inlet and air outlet of the small air pump (308). The bottom of the small air pump (308) is fixedly installed with an air pump mounting plate (310). The top of the air pump mounting plate (310) is provided with an exhaust hole (312). The bottom of the air pump mounting plate (310) is movably installed with a positioning column (311). The positioning column (311) is fixedly installed on the top of the base (1). The bottom of the air pump mounting plate (310) is movably fitted with a sealing ring (313). The sealing ring (313) is fixedly installed on the top of the base (1). The silicone ball (314) is fixedly installed on the bottom of the base (1).

3. The auxiliary positioning projection device for abdominal injection of low molecular weight heparin according to claim 2, characterized in that: The partition (309) divides the cavity inside the hollow screw (301) into two parts, upper and lower. The small air pump (308) pumps the air from the bottom cavity of the hollow screw (301) to the top cavity of the hollow screw (301) to create a negative pressure area at the bottom of the base (1) and the suction cup (2).

4. The auxiliary positioning projection device for abdominal injection of low molecular weight heparin according to claim 3, characterized in that: The air pump mounting plate (310) is composed of a ring with a hole at the top and a retaining ring at the bottom. The positioning post (311) is movably installed inside the cavity between the ring and the retaining ring of the air pump mounting plate (310) to restrict the air pump mounting plate (310) and the hollow screw (301) fixedly sleeved on one side of the air pump mounting plate (310) from moving up and down. The air pump mounting plate (310) and the hollow screw (301) can rotate around the positioning post (311).

5. The auxiliary positioning projection device for abdominal injection of low molecular weight heparin according to claim 2, characterized in that: The sealing ring (313), the air pump mounting plate (310), the hollow screw (301) and the partition (309) together form the lower half cavity inside the hollow screw (301), and the cavity is connected to the semi-closed cavity at the bottom of the suction cup (2) through the hole opened through the base (1) and the top of the suction cup (2).

6. The auxiliary positioning projection device for abdominal injection of low molecular weight heparin according to claim 2, characterized in that: The internal threaded ring (302) is movably sleeved on one side of the limiting post (304). The angle between the projection lamp (303) and the internal threaded ring (302) is 45°, and the center of the light circle formed by the multi-layered rings projected by the projection lamp (303) is a red dot, which is used to assist the patient in locating the injection point.

Images