Contactless light source positioning sampler

Abstract

The utility model discloses a kind of contactless light source positioning samplers, including sampler, support handle, the lower part of the sampler is equipped with recess, laser source is equipped in the recess, the top of the sampler is equipped with adjusting mechanism and mounting hole, the adjusting mechanism includes adjusting knob and lifting screw rod, the adjusting knob is set in the top of the sampler, screw hole is equipped in the adjusting knob, the mounting hole is through the recess and sampler, the lifting screw rod is set in mounting hole, and bottom is connected with laser source, screw transmission connection between the lifting screw rod and the adjusting knob;The sampler can be rotatably connected at the top of the support handle, control module and power module are integrated in the inside of the support handle, button is equipped on the support handle, the button is connected with the control module, the lower end of the support handle is equipped with charging port, the charging port is electrically connected with power module, the bottom of the support handle is equipped with antiskid base.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a non-contact light source positioning sampler. Background Technology

[0002] Environmental hygiene surveillance is an important component of hospital infection surveillance, and monitoring the effectiveness of environmental surface disinfection is a crucial part of the surveillance project. Current sampling methods typically involve sterilizing stainless steel templates at high temperatures using an alcohol lamp, then using the sterilized templates to determine the sampling area. Next, a cotton swab soaked in sampling solution is used to wipe the surface of the object to be tested. Finally, after sampling the area of ​​1-4 templates consecutively, the swab is removed from hand contact and placed in a test tube containing sterile eluent for testing.

[0003] However, the above methods have some drawbacks. On the one hand, alcohol lamps and standard plates are not easy to store. Alcohol lamps need to be replenished frequently, and standard plates are small and easy to lose. Furthermore, during sampling, the standard plates need to be burned in the outer flame of the alcohol lamp to ensure that every side of the standard plate is burned and sterilized before use. Moreover, the handheld part is often contaminated, leading to contamination of the sampling area. In addition, when the standard plate after high-temperature sterilization comes into direct contact with the surface of the object to be tested, it can easily cause damage to the surface of the object to be tested, thereby affecting the normal use of precision instruments. Sometimes, standard plates of different sizes are required for sampling. There are too many types of sampling items to prepare, making the operation cumbersome. When taking multiple measurements, the standard plates need to be changed repeatedly and sterilized at high temperatures multiple times, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by proposing a non-contact light source positioning sampler. It utilizes the principle of light projection to replace the alcohol lamp and specification board with a light source positioning sampler, thereby achieving non-contact positioning sampling.

[0005] To achieve the above objectives, the following technical solution was adopted: A contactless light source positioning sampler includes a sampler and a support handle. The sampler has a groove at its lower part containing a laser source. The top of the sampler has an adjustment mechanism and a mounting hole. The adjustment mechanism includes an adjustment knob and a lifting screw. The adjustment knob is located on the top of the sampler and has a threaded hole inside. The mounting hole connects the groove and the sampler. The lifting screw is located in the mounting hole and its bottom is connected to the laser source. The lifting screw and the adjustment knob are connected by a helical drive. The sampler is rotatably connected to the top of the support handle. The support handle integrates a control module and a power module. A button is located on the support handle and connected to the control module. A charging port is located at the lower end of the support handle and electrically connected to the power module. An anti-slip base is located at the bottom of the support handle.

[0006] Furthermore, a protective lampshade is provided at the lower edge of the groove for protection, and the size of the protective lampshade matches the size of the inner frame of the groove.

[0007] Furthermore, the groove is rectangular, the inner frame of the groove is square, and the inner wall of the groove forms a light-shielding boundary.

[0008] Furthermore, the laser source is movably disposed inside the groove and connected to the lifting screw of the adjustment mechanism, and can move up and down along the vertical direction of the groove. The laser source is provided with a limiting member that matches the inner frame of the groove.

[0009] Furthermore, the top of the sampler is provided with an elastic fixing member, which is connected to the adjustment knob via a bearing, and the bearing is locked inside the adjustment knob.

[0010] Furthermore, the adjustment knob has several settings, each corresponding to a different height of the laser source within the groove and a different area of ​​its projection.

[0011] Furthermore, the control module is electrically connected to both the power supply module and the laser source.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This invention achieves non-contact sampling and positioning by utilizing the projection of light emitted from a laser source, completely replacing alcohol lamps and specification plates. It is easier to store and carry, and more convenient for sampling. 2. This utility model defines the sampling range through non-contact light projection, which eliminates the need for physical contact with the object surface, avoids the contamination problem caused by the specification board, and eliminates the need for repeated disinfection with alcohol lamps, reducing the manpower and time costs of disinfection operations.

[0013] 3. The light projection of this utility model has no physical contact, can be adapted to most material surfaces, avoids damage to the surface of the object to be tested, and eliminates the fire risk caused by the open flame of the alcohol lamp and the problem of needing to replenish alcohol from time to time.

[0014] 4. In clinical sampling, different scenarios require different area standards. This utility model uses an adjustment mechanism to allow the laser source to move up and down, thereby adjusting the projection size to cover multiple sampling standards, improving adaptability while further reducing the number of items to carry and enhancing portability.

[0015] 5. The fixed-length support handle ensures a constant vertical distance between the laser source and the object surface, eliminating projection deviation caused by hand shaking. The anti-slip base is designed to fit smooth surfaces, ensuring stable placement of the device during sampling and further improving ease of operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the contactless light source positioning sampler of this utility model; Figure 2 This is a structural diagram of the adjustment mechanism of the contactless light source positioning sampler of this utility model; Figure 3 This is a schematic diagram of the laser source structure of the contactless light source positioning sampler of this utility model; Figure 4 This is a cross-sectional view of the adjustment mechanism of the contactless light source positioning sampler of this utility model; Figure 5 This is a circuit diagram of the contactless light source positioning sampler of this utility model; Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0018] As shown in Figure 1 to Figure 5As shown, a non-contact light source positioning sampler includes a sampler 1 and a support handle 2. A groove 3 is located below the sampler 1, and a laser source 31 is housed within the groove 3. An adjustment mechanism 4 and a mounting hole 11 are located at the top of the sampler 1. The adjustment mechanism 4 includes an adjustment knob 41 and a lifting screw 42. The adjustment knob 41 is located at the top of the sampler 1 and has a threaded hole inside. The mounting hole 11 passes through the groove 3 and the sampler 1. The lifting screw 42 is located within the mounting hole 11 and its bottom is connected to the laser source 31. The lifting screw 42 and the adjustment knob 41 are connected by a helical drive. The groove 3 below the sampler 1 provides installation space and displacement guidance for the laser source 31. The inner wall of the groove 3 forms a rigid light-shielding boundary, and the light emitted by the laser source 31 is projected onto the surface of the object being measured due to the shielding effect of the inner wall of the groove 3, forming a projection consistent with the shape of the inner frame of the groove 3. When in use, by rotating the adjustment knob 41 on the top of the sampler 1, the lifting screw 42, which meshes with the thread inside the adjustment knob 41, moves axially in a straight line, and drives the laser source 31 to move synchronously, so that the relative position of the laser source 31 and the lower edge of the groove 3 changes, resulting in a change in the light projection angle, and thus a change in the projection area.

[0019] like Figure 2 As shown, the sampler 1 is rotatably connected to the top of the support handle 2. The support handle 2 integrates a control module 5 and a power module 6. A button 21 is provided on the support handle 2, which is connected to the control module 5. A charging port 22 is located at the lower end of the support handle 2, which is electrically connected to the power module 6. An anti-slip base 23 is located at the bottom of the support handle 2. The integrated control module 5 and power module 6 provide stable power to the laser source 31 and enable circuit control. The button 21 allows for convenient start and stop of the laser source 31, simplifying the operation process. The charging port 22 at the lower end facilitates repeated charging of the power module 6, improving the device's battery life and reusability. The anti-slip base 23 at the bottom enhances the stability of the support handle 2 when placed, preventing projection deviation caused by device slippage during sampling. The overall structure balances operational flexibility, power supply reliability, and usage stability, further adapting to the diverse sampling needs of clinical settings.

[0020] Furthermore, a protective lampshade 32 is provided at the lower edge of the groove 3 for protection. The size of the protective lampshade 32 matches the size of the inner frame of the groove 3. The protective lampshade 32 provides physical protection for the laser source 31 and can also confine the laser source 31 within the groove 3, preventing the laser source 31 from moving outside the groove 3 with the lifting screw 42.

[0021] In use, hold the support handle 2 and place it against the surface of the object to be tested, keeping the support handle 2 perpendicular to the surface of the object to be tested, so that the anti-slip base 23 makes stable contact with the surface of the object. Then, rotate the adjustment knob 41 to the desired position to move the laser source 31 to the target position. Press the button 21 to turn on the laser source 31. The laser source 31 emits light and projects it onto the surface of the object to be tested to form a projection. Wipe the surface of the object to be tested with a cotton swab soaked in sampling liquid. After sampling, take samples from other surfaces of the object to be tested. After taking 1 to 4 samples, remove the part of the cotton swab that was in contact with your hand and put it into a test tube containing sterile test eluent for testing.

[0022] Furthermore, the groove 3 is rectangular, with a square inner frame, and its inner wall forms a light-shielding boundary. The rectangular groove 3 with its square inner frame and light-shielding boundary, through the rigid inner wall, constrains the light. Unblocked light illuminates the surface of the object under test, forming a projection with the same shape as the inner frame, providing a standardized visual definition of the sampling area. This replaces the physical limiting function of traditional specification boards, avoiding cross-contamination and surface damage caused by repeated use of specification boards, and ensuring a clear and regular projection boundary through the stability of the light-shielding boundary, providing a basic optical constraint for area standardization in different sampling scenarios.

[0023] like Figure 3 , Figure 4 As shown, the laser source 31 is further movably disposed inside the groove 3 and connected to the lifting screw 42 of the adjustment mechanism 4, allowing it to move up and down along the vertical direction of the groove 3. The laser source 31 is provided with a limiting member 33 that matches the inner frame of the groove 3. The lifting screw 42 and the laser source 31 are locked in the groove 3 by the limiting key that matches the inner frame of the groove 3 and cannot rotate. As the adjustment knob 41, which has a threaded hole inside, is rotated, the lifting screw 42 moves continuously, thereby driving the laser source 31 to move synchronously. By reversing the traditional screw drive, the position of the laser source 31 is changed, thereby changing the light projection angle, controlling the size of the projection, and realizing the switching of multiple sampling standards.

[0024] like Figure 2As shown, the sampler 1 further includes an elastic fixing member 12 at its top. This elastic fixing member 12 is connected to the adjustment knob 41 via a bearing 13, which is secured inside the adjustment knob 41. The elastic fixing member 12 at the top of the sampler 1 secures the adjustment knob 41 to the top of the sampler 1 and provides support for the knob, preventing it from falling. The bearing 13 connects the elastic fixing member 12 and the adjustment knob 41. Since the adjustment knob 41 needs to rotate independently to drive the laser source 31, the bearing 13 separates their rotational movements, preventing the elastic fixing member 12 from rotating synchronously with the knob and causing the sampler 1 to shift. Simultaneously, rolling friction replaces sliding friction, reducing component wear, extending the device's lifespan, and balancing structural stability and operational smoothness.

[0025] Furthermore, the adjustment knob 41 has several settings, corresponding to different heights of the laser source 31 within the groove 3 and different projected areas. By quickly positioning the laser source 31 using preset settings, precise switching of the projected area can be achieved. In use, it can directly match commonly used clinical sampling area requirements such as 25cm², 50cm², and 100cm², improving operational efficiency while avoiding errors from manual adjustment. This ensures consistency in projection size across different sampling scenarios, enhancing the practicality and reliability of the device.

[0026] like Figure 5 As shown, the control module 5 is further electrically connected to the power module 6 and the laser source 31. The control module 5 is electrically connected to the power module 6 and the laser source 31, and the button 21 is also connected to the control module 5 via a circuit, enabling the control system to quickly respond to the signal transmitted by the button 21 and react to the laser source 31. Furthermore, the power module is connected to the control module 5 and the laser source 31 via a circuit, ensuring that the power module 6 can continuously and stably provide power to the control module 5 and the laser source, guaranteeing the accuracy and reliability of the sampling process. In addition, the charging port 22 is also connected to the power module 6 via a circuit, solving the power module 6's battery life problem and enabling the application to be reused multiple times. Compared with the alcohol lamp in traditional methods, the cost is reduced and it is easier to store.

[0027] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Those skilled in the art may find other optimizations and additional functions in this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A non-contact light source positioning sampler, comprising a sampler (1) and a support handle (2), characterized in that: The sampler (1) has a groove (3) at its bottom, and a laser source (31) is provided in the groove (3). The sampler (1) has an adjustment mechanism (4) and a mounting hole (11) at its top. The adjustment mechanism (4) includes an adjustment knob (41) and a lifting screw (42). The adjustment knob (41) is located at the top of the sampler (1), and a threaded hole is provided inside the adjustment knob (41). The mounting hole (11) passes through the groove (3) and the sampler (1). The lifting screw (42) is located in the mounting hole (11), and its bottom is connected to the laser source. (31) Connection: The lifting screw (42) and the adjusting knob (41) are connected by a screw drive; the sampler (1) is rotatably connected to the top of the support handle (2); the support handle (2) integrates a control module (5) and a power module (6); the support handle (2) is provided with a button (21); the button (21) is connected to the control module (5); the lower end of the support handle (2) is provided with a charging port (22); the charging port (22) is electrically connected to the power module (6); the bottom of the support handle (2) is provided with an anti-slip base (23).

2. The contactless light source positioning sampler as described in claim 1, characterized in that: The lower edge of the groove (3) is provided with a protective lampshade (32) for protection, the size of which matches the size of the inner frame of the groove (3).

3. The contactless light source positioning sampler as described in claim 1, characterized in that: The groove (3) is rectangular, the inner frame of the groove (3) is square, and the inner wall of the groove (3) forms a light-shielding boundary.

4. The contactless light source positioning sampler as described in claim 1, characterized in that: The laser source (31) is movably disposed inside the groove (3) and connected to the lifting screw (42) of the adjustment mechanism (4), and can move up and down along the vertical direction of the groove (3). The laser source (31) is provided with a limiting member (33) that matches the inner frame of the groove (3).

5. The contactless light source positioning sampler as described in claim 1, characterized in that: The sampler (1) has an elastic fastener (12) on top. The elastic fastener (12) is connected to the adjustment knob (41) via a bearing (13). The bearing (13) is positioned between the adjustment knob (41) and the elastic fastener (12).

6. The contactless light source positioning sampler as described in claim 1, characterized in that: The adjustment knob (41) has several settings, which correspond to different heights of the laser source (31) in the groove (3) and different projected areas.

7. The contactless light source positioning sampler as described in claim 1, characterized in that: The control module (5) is electrically connected to the power supply module (6) and the laser source (31).

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