Water sample collector for dental comprehensive treatment table

Abstract

The utility model discloses a water sample collector for a dental comprehensive treatment table, belongs to the technical field of medical equipment detection, and aims to solve the problem that water drops are easy to splash out of a collection container when a dental handpiece connector collects a water sample, the water sample collector for the dental comprehensive treatment table comprises a shell (1), a piston (2) and a push-pull rod (3), the front end of the shell (1) is connected with a water inlet joint (11) and a positioning joint (12), and the water inlet joint (11) and the positioning joint (12) can be sequentially connected with a water outlet hole (41) and an air return hole (44) of the dental handpiece joint (4) for the dental comprehensive treatment table in a one-to-one correspondence manner. The front end of the water sample collector for the dental comprehensive treatment table is in a closed state, so that water drops can be prevented from being splashed out of a collection container when a dental handpiece connector sprays water mist.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment detection, and particularly to a water sample collector for a dental unit. Background Art

[0002] A dental unit is a medical device used for dental treatment and is applicable to the examination, diagnosis, and treatment of various dental diseases. In the existing dental unit and the dental handpiece adapter 4 (which can also be called a dental high-speed handpiece adapter), there are water circuits and air circuits. The dental handpiece adapter 4 has a water outlet hole 41, an atomizing air hole 42, a driving air inlet hole 43, and a return air hole 44. The water ejected from the water outlet hole 41 and the high-pressure gas ejected from the atomizing air hole 42 are mixed to form a water mist (a water-air mixture). The water circuit needs to be regularly detected to ensure hygienic safety and avoid bacterial growth. The usual method for detecting the water circuit is that the dental (high-speed) handpiece adapter of the dental unit sprays the water mist into a collection container (a measuring cup or a paper cup), and the water mist gathers into water in the measuring cup or the paper cup, and then the water in the measuring cup or the paper cup is detected. The problems existing in the existing detection method are that when collecting a water specimen, during the process of the dental handpiece adapter spraying the water mist into the measuring cup or the paper cup, due to the relatively large gas pressure, it is very easy for water droplets to splash out of the measuring cup or the paper cup, resulting in problems such as difficult collection, contamination of the water specimen, and environmental pollution. Summary of the Utility Model

[0003] In order to solve the problem that water droplets are easily splashed out of the collection container when the dental handpiece adapter collects a water specimen, the utility model provides a water sample collector for a dental unit. The front end of the water sample collector for a dental unit is in a closed state and is provided with a water inlet adapter and a positioning adapter, which can prevent water droplets from splashing out of the collection container when the dental handpiece adapter sprays the water mist.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A water sample collector for a dental unit includes a housing, a piston, and a push rod. The housing is a cylindrical structure with a closed front end and an open rear end. The piston is sleeved in the housing and is hermetically connected to the housing. The front end of the push rod is connected to the piston, and the piston and the push rod can move back and forth. The rear end of the push rod is located outside the housing. The front end of the housing is connected with a water inlet adapter and a positioning adapter, and the water inlet adapter and the positioning adapter can be sequentially and respectively connected to the water outlet hole and the return air hole of the dental handpiece adapter for the dental unit.

[0006] The housing is made of a transparent material and includes a front end wall and a side peripheral wall connected in sequence. Both the water inlet adapter and the positioning adapter are located on the front end wall.

[0007] The water inlet connector is located at the lower part of the front end wall. The positioning connector is located in the middle of the front end wall in the up and down direction. Claws are provided at the upper part of the front end wall. When the water inlet connector and the positioning connector are sequentially and respectively connected to the water outlet hole and the air return hole of the dental handpiece connector for the dental unit, the claws can be clamped with the dental handpiece connector.

[0008] Two claws are provided at the upper part of the front end wall. Both claws extend in the front and back direction. The two claws are symmetric about the left and right and are mirror images of each other.

[0009] Volume scales are provided on the outer surface of the side peripheral wall. The scale values of the volume scales are arranged from small to large in the direction from front to back.

[0010] Two ear plates are provided outside the rear end of the side peripheral wall. The two ear plates are evenly spaced along the circumferential direction of the housing.

[0011] The length of the housing is 7.5 cm - 15 cm, the outer diameter of the housing is 3 cm - 8 cm, and the wall thickness of the housing is 0.5 mm - 3.5 mm.

[0012] In the front and back direction, the length of the water inlet connector is less than the length of the positioning connector. The inner diameter of the water inlet connector is greater than or equal to the diameter of the water outlet hole. The positioning connector can be inserted into the air return hole in a matching manner.

[0013] The outer diameter of the water inlet connector is less than the outer diameter of the positioning connector.

[0014] The water inlet connector is in a conducting state, and the positioning connector is in a non-conducting state. A sealing ring is connected to the outside of the front end of the water inlet connector in a matching manner.

[0015] The beneficial effect of the present utility model is that the water sample collector for the dental unit can effectively separate the water and air ejected from the tail pipe of the handpiece, only collect water without collecting air, and avoid water droplets splashing outside the collection container when spraying water mist. It is convenient for collecting water sample specimens, reduces the operation time, and avoids the problem of inaccurate culture caused by specimen contamination. Description of the Drawings

[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0017] Figure 1 It is the front view schematic diagram of the water sample collector for the dental unit of the present utility model.

[0018] Figure 2 It is the left view schematic diagram of the water sample collector for the dental unit of the present utility model.

[0019] Figure 3It is a right side schematic diagram of the water sample collector for a dental comprehensive treatment table according to the utility model.

[0020] Figure 4 The utility model is a schematic cross-sectional view of a water sample collector for a dental comprehensive treatment table.

[0021] Figure 5 It is a schematic diagram of the front view of the dental handpiece connector.

[0022] Figure 6 It is a left side view of the dental handpiece connector.

[0023] Figure 7 It is a schematic diagram of the connection between the dental handpiece connector and the handpiece tail tube.

[0024] Figure 8 It is a schematic diagram of the working state of the water sample collector used for the dental comprehensive treatment table.

[0025] Description of reference numerals:

[0026] 1. Housing; 2. Piston; 3. Push-pull rod; 4. Dental handpiece connector;

[0027] 11. Water inlet joint; 12. Positioning joint; 13. Front end wall; 14. Side wall; 15. Claw; 16. Ear plate; 17. Accommodating cavity;

[0028] 41. Water outlet hole; 42. Atomizing air hole; 43. Driving air inlet hole; 44. Air return hole; 45. Mobile phone tail pipe. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] In order to facilitate understanding and description, the following description of the present invention adopts an absolute position relationship. Unless otherwise specified, the directional word "upper" means Figure 1 The directional word "下" indicates the upper direction. Figure 1 The downward direction in the word "left" indicates Figure 1 The left direction in the word "right" indicates Figure 1 The right direction in the word "front" indicates that it is perpendicular to Figure 1 The directional word "后" means perpendicular to the paper surface and points to the outside of the paper surface. Figure 1towards the inside of the paper surface. The present utility model describes from the perspective of the observer or user, but the above orientation terms should not be construed as limiting the protection scope of the present utility model. Regarding the dimensions and angles of the components therein, those skilled in the art can specifically determine according to actual needs.

[0031] As Figures 1 to 4 shown, a water sample collector for a dental unit according to an embodiment of the present utility model includes a housing 1, a piston 2 and a push rod 3. The housing 1 is a cylindrical structure with a closed front end and an open rear end. The piston 2 is sleeved inside the housing 1 and is sealingly connected to the housing 1. The front end of the push rod 3 is connected to the piston 2, and the piston 2 and the push rod 3 can move back and forth. The rear end of the push rod 3 is located outside the housing 1. The front end of the housing 1 is connected with a water inlet joint 11 and a positioning joint 12, and the water inlet joint 11 and the positioning joint 12 can be sequentially and respectively connected with the water outlet hole 41 and the air return hole 44 of the dental handpiece joint 4 for the dental unit.

[0032] The material of the housing 1 can be a transparent material, such as plastic. The housing 1 includes a front end wall 13 and a side peripheral wall 14 connected in sequence. Both the water inlet joint 11 and the positioning joint 12 are located on the front end wall 13. The piston 2, the front end wall 13 and the side peripheral wall 14 enclose a receiving cavity 17.

[0033] The water inlet joint 11 is in a conductive state, that is, the outside of the housing 1 communicates with the receiving cavity 17 through the inside of the water inlet joint 11. The positioning joint 12 is in a non-conductive state, that is, the outside of the housing 1 cannot communicate with the receiving cavity 17 through the positioning joint 12. The flow outside the housing 1 can only enter the receiving cavity 17 through the inside of the water inlet joint 11, which can be understood that the front end of the housing 1 is mostly closed.

[0034] The water inlet joint 11 can both be in a round tube structure, both ends of the water inlet joint 11 are in an open state, and the internal cavity of the water inlet joint 11 communicates with the receiving cavity 17. The positioning joint 12 can also be in a round tube structure, and at least one end of the positioning joint 12 is in a closed state. The front end wall 13 is in a round plate structure, and the side peripheral wall 14 is in a cylindrical structure. The axis of the front end wall 13, the axis of the side peripheral wall 14 and the axis of the housing 1 are parallel.

[0035] As Figures 1 to 4 shown, the water inlet joint 11 is located at the lower part of the front end wall 13. Along the up and down direction, the positioning joint 12 is located in the middle of the front end wall 13. A claw 15 is arranged on the upper part of the front end wall 13. The push rod 3 extends in the front and back direction. The water inlet joint 11, the positioning joint 12, the claw 15 and the front end wall 13 are connected as a whole.

[0036] As Figures 1 to 8As shown, when the water inlet joint 11 and the positioning joint 12 are sequentially and respectively connected to the water outlet hole 41 and the air return hole 44 of the dental handpiece joint 4 for the dental unit, the front end of the water inlet joint 11 abuts against the dental handpiece joint 4, the position of the water inlet joint 11 corresponds to the position of the water outlet hole 41, the inside of the water inlet joint 11 communicates with the water outlet hole 41, the positioning joint 12 is inserted into the air return hole 44 in a matching manner, the claw 15 can be clamped with the dental handpiece joint 4, and there can be a set distance between the front end wall 13 of the housing 1 and the dental handpiece joint 4.

[0037] Two claws 15 are provided on the upper part of the front end wall 13. The claws 15 are in a strip-shaped structure. Both claws 15 extend in the front-rear direction. The two claws 15 are symmetric about the left-right direction and are mirror images of each other. The positioning joint 12 and the two claws 15 can form a three-point fixation.

[0038] A volume scale is provided on the outer surface of the side peripheral wall 14. The unit of the volume scale can be ml, and the scale values of the volume scale are arranged from small to large in the front-to-back direction.

[0039] As Figures 1 to 4 As shown, in order to facilitate the front-back movement of the push-pull rod 3, two ear plates 16 are provided outside the rear end of the side peripheral wall 14. The two ear plates 16 are evenly spaced along the circumferential direction of the housing 1.

[0040] The length of the housing 1 can be 7.5 cm - 15 cm, the outer diameter of the housing 1 can be 3 cm - 8 cm, and the wall thickness of the housing 1 can be 0.5 mm - 3.5 mm.

[0041] Along the front-back direction, the length of the water inlet joint 11 can be less than the length of the positioning joint 12. The outer diameter of the water inlet joint 11 is less than the outer diameter of the positioning joint 12. The inner diameter of the water inlet joint 11 is greater than or equal to the diameter of the water outlet hole 41. The positioning joint 12 can be inserted into the air return hole 44 in a matching manner, and the outer diameter of the positioning joint 12 is equal to the inner diameter of the air return hole 44.

[0042] In order to prevent water from overflowing, a sealing ring can be connected to the outside of the front end of the water inlet joint 11 in a matching manner. For example, the inner diameter of the sealing ring is equal to the inner diameter of the water inlet joint 11, and the axis of the sealing ring coincides with the axis of the water inlet joint 11. The axes of the water inlet joint 11, the positioning joint 12, and the housing 1 are parallel, and the piston 2 and the housing 1 can be hermetically connected through a sealing ring.

[0043] The working process of the water sample collector for the dental unit is introduced below.

[0044] As Figures 1 to 8As shown, the dental handpiece adapter 4 is connected to the handpiece tail pipe 45. Push the push rod 3 forward to position the piston 2 at the front end of the housing 1, discharging the air in the accommodation cavity 17. The water inlet adapter 11 and the positioning adapter 12 of the water sample collector for the dental unit are sequentially and correspondingly connected to the water outlet hole 41 and the air return hole 44 of the dental handpiece adapter 4 of the dental unit, that is, the inside of the water inlet adapter 11 communicates with the water outlet hole 41, the positioning adapter 12 is inserted into the air return hole 44, and the claw 15 is clamped with the dental handpiece adapter 4.

[0045] Gently step on the drainage pedal of the dental unit, and water jets out from the water outlet hole 41. This water flow enters the accommodation cavity 17 through the water inlet adapter 11, and the water flow pushes the push rod 3 to move backward. Water accumulates in the accommodation cavity 17. After the amount of water accumulated in the accommodation cavity 17 reaches the specified specimen water volume, stop stepping on the foot-operated drainage pedal.

[0046] Push the push rod 3 forward to position the piston 2 at the front end of the housing 1, discharging the water accumulated in the accommodation cavity 17 into the petri dish, and detecting the water sample discharged from the accommodation cavity 17 according to the existing standards.

[0047] The water sample collector for the dental unit can effectively separate water and air ejected from the handpiece tail pipe, only collect water without collecting air, and avoid water droplets splashing outside the collection container when spraying water mist. It is convenient for collecting water sample specimens, reduces the operation time, and avoids the problem of inaccurate cultivation caused by specimen contamination.

[0048] This water sample collector for the dental unit can be used once or reused after sterilization due to different production materials. When in use, it should first be ensured that the collector is in a sterile state, and the dental handpiece adapter 4 should be disinfected according to the requirements of the water specimen collection method in the "Technical Specification for Disinfection of the Waterway of the Dental Unit in the Stomatology Department" (DB11 / T 1703-2019).

[0049] The above are only specific embodiments of the present invention, and the scope of implementation of the invention cannot be limited by them. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the present invention patent, should still fall within the scope covered by this patent. In addition, the technical features in the present invention can be freely combined with each other between technical features, between technical features and technical solutions, and between technical solutions.

Claims

1. A water sample collector for a dental unit, characterized in that, The water sample collector for the dental unit includes a housing (1), a piston (2) and a push-pull rod (3). The housing (1) is a cylindrical structure with a closed front end and an open rear end. The piston (2) is sleeved inside the housing (1), and the piston (2) is sealingly connected to the housing (1). The front end of the push-pull rod (3) is connected to the piston (2), and the piston (2) and the push-pull rod (3) can move back and forth. The rear end of the push-pull rod (3) is located outside the housing (1). The front end of the housing (1) is connected with a water inlet joint (11) and a positioning joint (12), and the water inlet joint (11) and the positioning joint (12) can be sequentially and correspondingly connected to the water outlet hole (41) and the air return hole (44) of the dental handpiece joint (4) for the dental unit one by one.

2. The water sample collector for a dental unit according to claim 1, characterized in that, The housing (1) is made of a transparent material. The housing (1) includes a front end wall (13) and a side peripheral wall (14) connected in sequence. The water inlet joint (11) and the positioning joint (12) are both located on the front end wall (13).

3. The water sample collector for a dental unit according to claim 2, wherein The water inlet joint (11) is located at the lower part of the front end wall (13). In the up-down direction, the positioning joint (12) is located in the middle of the front end wall (13). A claw (15) is arranged at the upper part of the front end wall (13). When the water inlet joint (11) and the positioning joint (12) are sequentially and correspondingly connected to the water outlet hole (41) and the air return hole (44) of the dental handpiece joint (4) for the dental unit one by one, the claw (15) can be clamped with the dental handpiece joint (4).

4. The water sample collector for a dental unit according to claim 3, wherein Two claws (15) are arranged at the upper part of the front end wall (13). Both of the two claws (15) extend in the front-back direction, and the two claws (15) are symmetric about the left-right and are mirror images of each other.

5. The water sample collector for a dental unit according to claim 2, characterized in that, A volume scale is arranged on the outer surface of the side peripheral wall (14), and the scale values of the volume scale are arranged in ascending order from front to back.

6. The water sample collector for a dental unit according to claim 2, wherein Two ear plates (16) are arranged outside the rear end of the side peripheral wall (14), and the two ear plates (16) are evenly spaced along the circumferential direction of the housing (1).

7. The water sample collector for a dental unit according to claim 1, wherein The length of the housing (1) is 7.5 cm - 15 cm, the outer diameter of the housing (1) is 3 cm - 8 cm, and the wall thickness of the housing (1) is 0.5 mm - 3.5 mm.

8. The water sample collector for a dental unit according to claim 1, characterized in that, In the front-back direction, the length of the water inlet joint (11) is less than that of the positioning joint (12). The inner diameter of the water inlet joint (11) is greater than or equal to the diameter of the water outlet hole (41), and the positioning joint (12) can be inserted into the air return hole (44) in a matching manner.

9. The water sample collector for a dental unit according to claim 1, characterized in that, The outer diameter of the water inlet joint (11) is less than that of the positioning joint (12).

10. The water sample collector for a dental unit according to claim 1, characterized in that, The water inlet joint (11) is in a conducting state, the positioning joint (12) is in a non-conducting state, and a sealing ring is connected to the outside of the front end of the water inlet joint (11) in a matching manner.

Images