Negative pressure type medicine guiding and distributing device

Abstract

The utility model discloses a negative pressure type medicine guiding and distributing device which comprises a needle tube, a piston is connected in the needle tube in a sliding mode, the lower end of the piston is fixedly connected with a connecting rod, the lower end of the connecting rod is fixedly connected with a movable disc, and the upper end of the needle tube is fixedly connected with a damping rod. According to the utility model, several point positions of an alveolar bone of a periodontitis patient are reasonably selected, holes with proper sizes are drilled, a flat-head needle is inserted into the hole positions and is matched with another injector filled with medicine, and the medicine is sucked to an expected position by utilizing negative pressure, so that the effect of pushing and pulling is formed, the resistance of the medicine entering bone tissues is smaller, the distribution range is larger and more reasonable, and the operation is more convenient. Meanwhile, a plurality of guide hoses are designed, the flow direction of the medicine can be guided in a multi-direction and multi-point range, the medicine is sucked to an expected position through negative pressure generated by pulling an injector, a better treatment effect is achieved, and innovation is made aiming at the problem that an effective means for curing the periodontitis is lacked at present.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine guiding and distributing devices, in particular to a negative pressure medicine guiding and distributing device. Background Art

[0002] The negative pressure drug guide distribution device is a medical device that guides the distribution of drugs through a negative pressure environment. This device is often used for wound treatment, especially when there is a drainage tube or other drainage device on the wound. The working principle of the negative pressure drug guide distribution device is to generate a negative pressure environment around the wound through a sealed system. In this environment, the drug can be delivered to the wound through a pipe or catheter, thereby achieving the treatment of the wound. The use of a negative pressure drug guide distribution device can effectively control the amount of drug distributed on the wound and the drug concentration, and improve the local efficacy of the drug. In addition, the negative pressure environment can also promote wound healing and reduce the risk of infection. In order to cure patients with periodontitis, the drug can reach the affected area smoothly.

[0003] However, the existing device still has the following defects:

[0004] Currently, there is a lack of effective means to cure periodontitis. Generally, treatment is performed by injecting anti-inflammatory drugs into the gingival sulcus. However, when injecting the drugs, the drugs cannot reach the intended position or cannot reach the deep inside of all tissue defects due to lack of guidance in direction, resulting in poor treatment effect. Therefore, we need to propose a negative pressure drug guiding and distribution device. Utility Model Content

[0005] The purpose of the utility model is to provide a negative pressure drug guiding and distributing device, which is designed with multiple guiding hoses and can guide the flow of drugs in multiple directions and at multiple points. The negative pressure generated by pulling the syringe can attract the drugs to the desired position to achieve better treatment effects, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A negative pressure drug guiding and distributing device comprises a needle tube, wherein a piston is slidably connected inside the needle tube, a connecting rod is fixedly connected to the lower end of the piston, a moving disk is fixedly connected to the upper end of the needle tube, a damping rod is fixedly connected to the upper end of the needle tube, a backflow prevention assembly is arranged inside the upper end of the needle tube, a connecting tube is threadedly connected to the outer side of the upper end of the needle tube, a sliding groove is provided on the outer side of the connecting tube, a slider is slidably connected inside the sliding groove, a moving ring is fixedly connected to the outer side of the slider, the moving ring is slidably connected to the connecting tube, a through hole is provided inside the moving ring, and a spherical shell is fixedly connected to the upper end of the connecting tube.

[0008] Preferably, the anti-backflow assembly includes a mounting tube, the upper end of the needle tube is threadedly connected to the mounting tube, the outer side of the mounting tube is fixedly connected to a limiting ring, the limiting ring is in contact with the needle tube, the interior of the mounting tube is fixedly connected to a mounting plate, the interior of the mounting plate is slidably connected to a sliding rod, and a spring is provided on the outer side of the sliding rod.

[0009] Preferably, a connector is sleeved on the outer side of the spherical shell, and a hose is fixedly connected to the outer side of the connector.

[0010] Preferably, a flat-head needle is fixedly connected to the outer side of the hose, and the outer side of the flat-head needle contacts a sealing sleeve.

[0011] Preferably, one end of the spring is fixedly connected to a mounting plate, and the other end of the spring is fixedly connected to a fixing disk.

[0012] Preferably, the upper end of the slide rod is fixedly connected to a fixing disk, and the lower end of the slide rod is fixedly connected to a sealing disk.

[0013] Preferably, the sealing disk is in contact with the needle tube, and the sealing disk is in contact with the mounting tube.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model reasonably selects several points of the alveolar bone of patients with periodontitis, drills holes of appropriate sizes, inserts flat-head needles into the holes, cooperates with another syringe filled with medicine, and uses negative pressure to attract the medicine to the expected position, forming a push-pull effect, so that the resistance of the medicine entering the bone tissue is smaller, and the distribution range is larger and more reasonable, thereby curing periodontitis. At the same time, multiple guiding hoses are designed to guide the flow of medicine in multiple directions and at multiple points. The negative pressure generated by pulling the syringe attracts the medicine to the expected position, achieving better treatment effects, and making innovations to the problem of the current lack of effective means for curing periodontitis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 Practical Figure 2 Magnified view of area A in .

[0019] In the figure: 1. needle tube; 2. piston; 3. connecting rod; 4. moving disk; 5. damping rod; 6. anti-backflow assembly; 61. mounting tube; 62. limit ring; 63. mounting plate; 64. slide rod; 65. spring; 66. fixed disk; 67. sealing disk; 7. connecting tube; 8. slide groove; 9. slider; 10. moving ring; 11. through hole; 12. spherical shell; 13. connector; 14. hose; 15. flat-head needle; 16. sealing sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 , the utility model provides a technical solution:

[0022] A negative pressure drug guiding and distributing device comprises a needle tube 1, a piston 2 is slidably connected inside the needle tube 1, a connecting rod 3 is fixedly connected to the lower end of the piston 2, a moving disk 4 is fixedly connected to the lower end of the connecting rod 3, a damping rod 5 is fixedly connected to the upper end of the needle tube 1, a backflow prevention component 6 is arranged inside the upper end of the needle tube 1, a connecting tube 7 is threadedly connected to the outer side of the upper end of the needle tube 1, a slide groove 8 is provided on the outer side of the connecting tube 7, a slider 9 is slidably connected inside the slide groove 8, a moving ring 10 is fixedly connected to the outer side of the slider 9, the moving ring 10 is slidably connected to the connecting tube 7, a through hole 11 is provided inside the moving ring 10, and a spherical shell 12 is fixedly connected to the upper end of the connecting tube 7.

[0023] The anti-backflow assembly 6 includes a mounting tube 61, the upper end of the needle tube 1 is internally connected to the mounting tube 61 through a thread, the outer side of the mounting tube 61 is fixedly connected to a limiting ring 62, the limiting ring 62 is in contact with the needle tube 1, the interior of the mounting tube 61 is fixedly connected to a mounting plate 63, the interior of the mounting plate 63 is slidably connected to a slide rod 64, and a spring 65 is provided on the outer side of the slide rod 64.

[0024] A connector 13 is sleeved on the outer side of the spherical shell 12 , and a hose 14 is fixedly connected to the outer side of the connector 13 .

[0025] Through the design of the spherical shell 12, multiple interfaces are set on the outside of the spherical shell 12, and multiple hoses 14 can be installed through the connector 13, so that the needle tube 1 can extract multiple flat-headed needles 15 at the same time, avoiding the need for one needle tube 1 to operate one flat-headed needle 15, so that the device is highly efficient when operating. At the same time, the spherical shell 12 can collect the liquid sucked out by the flat-headed needle 15 to increase the storage space of the needle tube 1.

[0026] A flat-end needle 15 is fixedly connected to the outside of the hose 14 , and a sealing sleeve 16 is in contact with the outside of the flat-end needle 15 .

[0027] Through the design of the flat-head needle 15, the flat-head needle 15 is inserted into the punched hole to wash out the liquid in the patient's wound, thereby achieving suction in the wound. At the same time, the needle adopts a flat head to avoid secondary damage to the wound, and the hose 14 makes it easy to adjust the position of the flat-head needle 15.

[0028] One end of the spring 65 is fixedly connected to the mounting plate 63 , and the other end of the spring 65 is fixedly connected to the fixing disk 66 .

[0029] Through the design of the spring 65, when the piston 2 is pulled out to the outside of the needle tube 1, the sealing disk 67 moves downward, and the spring 65 is compressed downward by the pulling force of the sealing disk 67 through the slide rod 64 and the fixed disk 66. When the received pulling force decreases, the spring 65 is stretched by its own elastic force, driving the slide rod 64 and other components to move.

[0030] The upper end of the slide rod 64 is fixedly connected to a fixing plate 66 , and the lower end of the slide rod 64 is fixedly connected to a sealing plate 67 .

[0031] Through the design of the slide bar 64 , the slide bar 64 controls the position of the sealing disk 67 and drives the sealing disk 67 to move.

[0032] The sealing disk 67 is in contact with the needle tube 1 , and the sealing disk 67 is in contact with the mounting tube 61 .

[0033] Through the design of the sealing disk 67, the sealing disk 67 seals the needle tube 1 when the piston 2 does not move or moves toward the spherical shell 12, preventing backflow from occurring due to the movement of the piston 2 toward the spherical shell 12 during operation, thereby avoiding harm to the patient caused by the backflow.

[0034] Working principle: When the utility model is used, the connecting tube 7 is connected to the needle tube 1. After the connecting tube 7 is installed in place, the moving ring 10 is moved, the slider 9 and the slide groove 8 play a guiding role, the damping rod 5 is inserted into the through hole 11, and the moving ring 10 prevents the connecting tube 7 from falling off during use. When the connector 13 is connected to the spherical shell 12, the sealing sleeve 16 is removed to facilitate the use of the flat-head needle 15. Several points of the alveolar bone of the periodontitis patient are reasonably selected, holes of appropriate sizes are drilled, and the flat-head needle 15 is inserted into the hole position. In cooperation with another syringe filled with medicine, the connecting rod 3 and the piston 2 are pulled outward by the moving disk 4, and the medicine is absorbed by negative pressure. The drainage is directed to the expected position, forming a push-pull effect, so that the resistance of the drug entering the bone tissue is smaller, and the distribution range is larger and more reasonable, thereby curing periodontitis. When the piston 2 is withdrawn toward the outside of the needle tube 1, the sealing disk 67 moves downward to release the seal on the needle tube 1. The spring 65 is pulled by the sealing disk 67 through the slide rod 64 and the fixed disk 66 and compressed downward. When the received pulling force decreases, the spring 65 is stretched by its own elastic force, driving the slide rod 64 and other components to move, and the sealing disk 67 seals the needle tube 1 to prevent backflow caused by the movement of the piston 2 toward the spherical shell 12 during operation, thereby avoiding harm to the patient caused by backflow.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A negative pressure drug guiding and distributing device, comprising a needle tube (1), characterized in that: The inside of the needle tube (1) is slidably connected to a piston (2), the lower end of the piston (2) is fixedly connected to a connecting rod (3), the lower end of the connecting rod (3) is fixedly connected to a moving disk (4), the upper end of the needle tube (1) is fixedly connected to a damping rod (5), the upper end of the needle tube (1) is provided with an anti-backflow component (6), the outer side of the upper end of the needle tube (1) is connected to a connecting tube (7) by a thread, the outer side of the connecting tube (7) is provided with a sliding groove (8), the inside of the sliding groove (8) is slidably connected to a slider (9), the outer side of the slider (9) is fixedly connected to a moving ring (10), the moving ring (10) is slidably connected to the connecting tube (7), the inside of the moving ring (10) is provided with a through hole (11), and the upper end of the connecting tube (7) is fixedly connected to a spherical shell (12).

2. A negative pressure drug guiding and distributing device according to claim 1, characterized in that: The anti-backflow assembly (6) comprises a mounting tube (61), the upper end of the needle tube (1) is internally connected to the mounting tube (61) via a thread, the outer side of the mounting tube (61) is fixedly connected to a limit ring (62), the limit ring (62) is in contact with the needle tube (1), the interior of the mounting tube (61) is fixedly connected to a mounting plate (63), the interior of the mounting plate (63) is slidably connected to a slide rod (64), and a spring (65) is provided on the outer side of the slide rod (64).

3. A negative pressure drug guiding and distributing device according to claim 1, characterized in that: The outer side of the spherical shell (12) is sleeved with a connector (13), and the outer side of the connector (13) is fixedly connected with a hose (14).

4. A negative pressure drug guiding and distributing device according to claim 3, characterized in that: The outer side of the hose (14) is fixedly connected with a flat-head needle (15), and the outer side of the flat-head needle (15) contacts with a sealing sleeve (16).

5. A negative pressure drug guiding and distributing device according to claim 2, characterized in that: One end of the spring (65) is fixedly connected to a mounting plate (63), and the other end of the spring (65) is fixedly connected to a fixing disk (66).

6. A negative pressure drug guiding and distributing device according to claim 2, characterized in that: The upper end of the slide rod (64) is fixedly connected to a fixing plate (66), and the lower end of the slide rod (64) is fixedly connected to a sealing plate (67).

7. A negative pressure drug guiding and distributing device according to claim 6, characterized in that: The sealing disk (67) is in contact with the needle tube (1), and the sealing disk (67) is in contact with the mounting tube (61).

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