Alternate-flushing injector for oral treatment

Abstract

The utility model relates to the field of oral cavity treatment, and discloses an alternate flushing injector for oral cavity treatment, which comprises an outer cylinder, a first needle cylinder and a second needle cylinder are arranged in the outer cylinder, a first piston rod and a second piston rod are respectively and correspondingly arranged in the first needle cylinder and the second needle cylinder, and piston handles are sleeved outside the first piston rod and the second piston rod. A spring holder used for being connected with the first piston rod or the second piston rod is movably arranged on the piston handle, a rotating head is connected to the front end of the outer cylinder, and three limiting mechanisms are arranged between the rotating head and the outer cylinder. The limiting mechanism ensures accurate positioning of the rotating head through cooperation of a limiting buckle and a limiting ball, and flushing fluid is prevented from being discharged in a staggered mode. By means of the double-cylinder type design and the design of the spring holder, the rotating head and the limiting mechanism, the oral cavity flushing device is simple in structure, different kinds of flushing fluid can be efficiently, accurately and alternately discharged, the operation process is simplified, and the oral cavity treatment efficiency and effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oral treatment, especially a syringe for alternately washing in oral treatment. BACKGROUND

[0002] Different washing liquids have different functions. In the process of oral treatment, especially in the process of root canal treatment, the doctor needs to remove the infectious material, bacteria and debris in the dental pulp cavity by different washing liquids. For example: sodium hypochlorite washing liquid is a commonly used root canal washing agent in clinical practice, which can clean the root canal, dissolve necrotic tissue, lubricate the root canal wall and kill bacteria. Hydrogen peroxide solution, also known as hydrogen peroxide, can release nascent oxygen when it meets catalase in root canal tissue, which can kill bacteria and remove odor. The foaming action of hydrogen peroxide solution also helps to remove the exudate and necrotic tissue in the root canal, and it is often used in combination with sodium hypochlorite and physiological saline in clinical practice. Different washing liquids have different functions, and the use of these washing liquids alternately can better balance the cleaning and sterilization effects during treatment, so as to achieve the effect of disinfection, sterilization and cleaning of the oral cavity, thereby effectively reducing the risk of infection and improving the success rate of treatment.

[0003] The traditional washing method is to use one syringe to alternately draw washing liquid or to use two syringes to draw different washing liquids alternately. Both methods require repeated pumping or repeated alternation of picking up, which is time-consuming and laborious, prolongs the working time of medical staff and increases the risk of pumping error or needle stick injury, and reduces the washing effect.

[0004] The utility model with publication number CN213607080U discloses a double-cavity syringe for oral washing, which comprises a base, first and second through holes are formed on the left and right sides of the base, and first and second needle cylinders are respectively installed in the first and second through holes, forming a double-cavity syringe. The double-cavity syringe can draw two different liquids at a time and is suitable for situations where two washing liquids are needed for oral cleaning. However, in actual use, this syringe mixes the two washing liquids and cannot selectively discharge the washing liquid in the first or second needle cylinder, so it cannot be used alternately with different washing liquids, which greatly limits its use in actual treatment. SUMMARY

[0005] In view of the above problems, the utility model aims to provide a syringe for alternately washing in oral treatment. The double-cavity design of the first needle cylinder and the second needle cylinder allows two washing liquids to be loaded in one syringe. By connecting the spring clamp holder with one of the piston rods, the corresponding piston rod can be moved by the piston handle, and the rotation head and the limiting device can be used to selectively release the washing liquid, so that different washing liquids can be used alternately.

[0006] In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

[0007] A kind of syringe for oral treatment of alternating irrigation, including outer tube, first needle cylinder and second needle cylinder are equipped in the outer tube, first piston rod and second piston rod are respectively equipped in the first needle cylinder and the second needle cylinder, piston handle is equipped outside the first piston rod and the second piston rod, spring holder for connecting the first piston rod or the second piston rod is movably arranged on the piston handle.

[0008] Further, two second through holes are formed in the piston handle, and the spring holder is rotatably connected between the two second through holes.

[0009] Further, the spring holder includes a connecting rod, the connecting rod is rotatably connected with the piston handle, two clamping pieces are movably arranged on the connecting rod, a second spring is arranged between the two clamping pieces, and a pull rod is movably connected to each of the two clamping pieces.

[0010] Further, a rotating head is connected to the front end of the outer tube, a needle is connected to the front end of the rotating head, a first channel and a second channel are formed in the rotating head and correspondingly communicated with the first needle cylinder and the second needle cylinder.

[0011] Further, the rotating head is rotatably connected to the front end of the outer tube, the first channel and the second channel are eccentrically arranged, and three sets of limiting mechanisms are arranged between the rotating head and the outer tube.

[0012] Further, the limiting mechanism includes a limiting buckle and a limiting ball, the limiting buckle is connected to the rotating head, and the limiting ball is connected to the outer tube by a first spring.

[0013] The utility model has the advantages that, compared with the prior art,

[0014] 1. The syringe in the application is provided with first needle cylinder and second needle cylinder, and a piston handle is arranged outside the first needle cylinder and the second needle cylinder. The first piston rod and the second piston rod can be connected or separated from the piston handle through the spring holder. When the piston handle is connected with the first piston rod, the piston handle can be pushed downward to drive the first piston rod to move, so as to push the irrigation liquid in the first needle cylinder out. The spring holder is opened by the pull rod and rotated in a direction, so that the piston handle is separated from the first piston rod and connected with the second piston rod. The piston handle can be pushed downward to drive the second piston rod to move, so as to push the irrigation liquid in the second needle cylinder out. The two kinds of irrigation liquids can be used alternately, the movement of the two piston rods does not interfere with each other, and the piston handle does not need to be moved up and down to be connected with the corresponding piston rod.

[0015] 2. The structure of the spring clamp allows the two clamping plates to be easily opened using two pull rods. After flipping the spring clamp, the two clamping plates are clamped and fixed with the threaded piston rod, resulting in good stability.

[0016] 3. In this application, a rotating head is provided at the front end of the outer cylinder. The rotating head is eccentrically provided with a first channel and a second channel. When the rinsing fluid is drawn into the first syringe or the second syringe, the rotating head is rotated to connect the syringe that needs to draw in the rinsing fluid with the corresponding channel, while the other syringe is not connected to the channel. This can prevent the two rinsing fluids from being mixed when drawing in the rinsing fluid. When the rinsing fluid is discharged, the rotating head is rotated to connect the syringe that needs to discharge the rinsing fluid with the corresponding channel, while the other syringe is not connected to the channel. The corresponding rinsing fluid is pushed out by the movement of the corresponding piston rod, thereby realizing the separate and alternating use of different rinsing fluids.

[0017] With its dual-cylinder design, spring clamp, and rotating head switching mechanism, it can efficiently and accurately alternately discharge different types of rinsing fluid, simplifying the operation process and improving the efficiency and effectiveness of oral treatment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an alternating irrigation syringe for oral treatment according to the present invention.

[0019] Figure 2 for Figure 1 A perspective view of the three-dimensional structure diagram.

[0020] Figure 3 for Figure 1 A top view of the three-dimensional structure.

[0021] Figure 4 for Figure 1 Enlarged view of part A of the three-dimensional structure.

[0022] Figure 5 This is a top view of the three-dimensional structure of the piston handle in this utility model.

[0023] Figure 6 This is a top view of the three-dimensional structure of the spring clamp in this utility model.

[0024] Figure 7 This is a top view of the three-dimensional structure of the rotating head in this utility model.

[0025] Wherein: 1-First syringe, 2-First piston, 3-First piston rod, 4-Second syringe, 5-Second piston, 6-Second piston rod, 7-Handle, 8-Piston handle, 9-Spring clamp, 10-Connecting rod, 11-First through hole, 12-Rotating head, 13-First channel, 14-Second channel, 15-Limit buckle, 16-Limit ball, 17-First spring, 18-Nipple, 19-Needle, 20-Partition, 21-Second through hole, 22-Rotating groove, 23-Third through hole, 24-Pull rod, 25-Fourth through hole, 26-Second spring, 27-Groove, 28-Clamping piece, 29-Outer cylinder. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Example 1:

[0028] See attached document Figures 1-6 The illustrated syringe for alternating irrigation in oral treatment includes an outer barrel 29. The outer barrel 29 contains a first syringe 1 and a second syringe 4, both of which are hollow structures designed to hold two different irrigation solutions. A first piston rod 3 and a second piston rod 6 are respectively located within the first syringe 1 and the second syringe 4. A first piston 2 and a second piston 5 are respectively located at the bottom of the first piston rod 3 and the second piston rod 6. The first piston 2 is sealed and slidably connected to the inner wall of the first syringe 1, and the second piston 5 is sealed and slidably connected to the inner wall of the second syringe 4, thereby controlling the intake and discharge of the irrigation solution.

[0029] To ensure the isolation of different rinsing solutions, a partition 20 is provided between the first syringe 1 and the second syringe 4. The partition 20 is made of a corrosion-resistant material and can effectively prevent the two rinsing solutions from mixing. The design of the partition 20 ensures that the rinsing solution in the other syringe is not affected when one syringe is being used, thereby guaranteeing the separation and safety of different rinsing solutions.

[0030] The first syringe 1 and the second syringe 4 are fixedly connected to the top of the handle 7, which makes it convenient for doctors to perform irrigation operations stably.

[0031] A piston handle 8 is fitted over the first piston rod 3 and the second piston rod 6. A spring clamp 9 is movably mounted on the piston handle 8 for connecting the first piston rod 3 or the second piston rod 6. Two second through holes 21 are provided on the piston handle 8 for the first piston rod 3 and the second piston rod 6 to pass through, and the spring clamp 9 is rotatably connected between the two second through holes 21.

[0032] The spring holder 9 comprises a connecting rod 10 which is rotationally connected with the piston handle 8, the spring holder 9 is provided with a third through hole 23 for mounting the connecting rod 10, and the piston handle 8 is symmetrically provided with two first through holes 11 for rotationally mounting the connecting rod 10. The piston handle 8 is further provided with a rotation slot 22 for allowing the connecting rod 10 to rotate, so that the connecting rod 10 can rotate 180 degrees in the plane without being restricted.

[0033] The connecting rod 10 is movably provided with two clamping pieces 28, and the two clamping pieces 28 are movably connected with a pull rod 24. The spring holder 9 is provided with a fourth through hole 25 for slidingly connecting the pull rod 24. When it is needed to suck or discharge the flushing liquid from the first syringe 1, the spring holder 9 is opened by the pull rod 24, and the connecting rod 10 is connected to the first piston rod 3 by rotating the connecting rod 10, and the first piston rod 3 is moved by pulling or pushing the piston handle 8 upward or downward, so that the flushing liquid is sucked or discharged in the first syringe 1. The second syringe 4 is operated in the same way. The pull rod 24 and the fourth through hole 25 are in sliding connection, and the pull rod 24 can slide out of the fourth through hole 25 in the opposite direction, so there is no need to worry about obstruction.

[0034] The second spring 26 is arranged between the two clamping pieces 28, and the second spring 26 automatically resets the two clamping pieces 28 after the switching operation is completed. The first piston rod 3 and the second piston rod 6 are in external thread structure, the internal thread of the two clamping pieces 28 is completely matched with the external thread of the first piston rod 3 and the second piston rod 6, so that the clamping and fixing are stable and good.

[0035] Embodiment two:

[0036] On the basis of embodiment one, in embodiment two, referring to the oral treatment alternating flushing syringe shown in the accompanying drawings, Figure 7 The rotating head 12 is provided with a recess 27, and the recess 27 is matched with the front end of the outer cylinder 29 to ensure that the flushing liquid will not leak during operation.

[0037] The rotating head 12 is provided with a nipple 18, and the rotating head 12 is connected with a needle 19 at the front end, the nipple 18 is connected with the needle 19 by thread or buckle connection, so as to ensure that the needle 19 will not fall off during operation. The needle 19 is made of soft plastic material, and the needle 19 can accurately discharge the flushing liquid to the designated position of the oral cavity by shaping, which is convenient for the operator to operate.

[0038] The rotating head 12 is internally provided with a first channel 13 and a second channel 14 corresponding to the first needle cylinder 1 and the second needle cylinder 4, and the first channel 13 and the second channel 14 are eccentrically arranged.

[0039] The rotating head 12 and the outer cylinder 29 are provided with three sets of limiting mechanisms, the limiting mechanisms comprising a limiting buckle 15 and a limiting ball 16, and the limiting ball 16 is connected with the outer cylinder 29 through a first spring 17. The limiting ball 16 controls the switching operation of the rotating head 12 through cooperation with the first spring 17 to realize accurate selection of the flushing liquid channel. The elastic design of the limiting mechanism makes the switching operation smooth and can be locked when the channel is aligned, avoiding accidental switching of the needle cylinder during treatment.

[0040] Through the above design, the operator can efficiently and accurately alternate the discharge of different types of flushing liquid from the first needle cylinder 1 and the second needle cylinder 4, simplifying the operation process and improving the treatment effect.

[0041] Specific application examples:

[0042] The injection syringe for alternating flushing in oral treatment is used for root canal treatment, and hydrogen peroxide solution and physiological saline are repeatedly used for alternating flushing in root canal treatment to flush out dentin debris and prevent root canal blockage.

[0043] During the process of irrigation, the hydrogen peroxide solution and the normal saline are stored in the first syringe 1 and the second syringe 4 respectively. The first syringe 1 and the second syringe 4 are provided with a partition 20 for separating the two irrigation solutions. The rotating head 12 is provided with a first channel 13 and a second channel 14, and the corresponding channel is selected by rotation to realize the switching of the irrigation solutions of different syringes. The limiting buckle 15 and the limiting ball 16 ensure the accurate positioning of the rotating head 12, avoiding the misplacement of the irrigation solution. The first piston rod 3 and the second piston rod 6 are selectively connected with the piston handle 8 through the spring clamp 9, and after the channel is selected by rotating the rotating head 12, the operator pushes the piston handle 8 to drive the connected first piston rod 3 or the second piston rod 6, so that the first piston 2 or the second piston 5 in the corresponding syringe moves downward, and the hydrogen peroxide solution in the first syringe 1 or the normal saline in the second syringe 4 is discharged from the nipple 18 and the needle 19 to the oral cavity. The groove 27 on the rotating head 12 is matched with the front end of the outer cylinder 29, so that the irrigation solution will not leak when the syringe is switched.

[0044] Through the cooperation of these components, the utility model can realize efficient and safe alternating irrigation operation in the process of oral treatment.

[0045] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An injection syringe for alternate irrigation in oral treatment, comprising an outer cylinder (29), a first needle cylinder (1) and a second needle cylinder (4) are arranged in the outer cylinder (29), a first piston rod (3) and a second piston rod (6) are respectively arranged in the first needle cylinder (1) and the second needle cylinder (4), characterized in that: a piston handle (8) is arranged on the first piston rod (3) and the second piston rod (6), a spring holder (9) for connecting the first piston rod (3) or the second piston rod (6) is movably arranged on the piston handle (8).

2. An alternating irrigation syringe for dental treatment according to claim 1, characterized in that: Two second through holes (21) are arranged on the piston handle (8), and the spring holder (9) is rotatably connected between the two second through holes (21).

3. An alternating irrigation syringe for dental procedures as defined in claim 1, wherein: The spring holder (9) comprises a connecting rod (10), and the connecting rod (10) is rotatably connected with the piston handle (8); Two clamping pieces (28) are movably arranged on the connecting rod (10); A second spring (26) is arranged between the two clamping pieces (28); Pull rods (24) are movably connected to the two clamping pieces (28).

4. An alternating irrigation syringe for dental procedures as defined in claim 1, wherein: A rotating head (12) is connected to the front end of the outer cylinder (29), and a needle (19) is connected to the front end of the rotating head (12); A first channel (13) and a second channel (14) are arranged in the rotating head (12) and correspondingly communicated with the first needle cylinder (1) and the second needle cylinder (4).

5. An alternating irrigation syringe for dental treatment according to claim 4, characterized in that: The rotating head (12) is rotatably connected with the front end of the outer cylinder (29); The first channel (13) and the second channel (14) are eccentrically arranged, and three sets of limiting mechanisms are arranged between the rotating head (12) and the outer cylinder (29).

6. An alternating irrigation syringe for dental treatment according to claim 5, characterized in that: The limiting mechanism comprises a limiting buckle (15) and a limiting ball (16), the limiting buckle (15) is connected with the rotating head (12); The limiting ball (16) is connected with the outer cylinder (29) through a first spring (17).

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