A sampling device for auxiliary screening of oral cancer

Abstract

The present invention relates to the field of medical devices, and specifically to a sampling device for auxiliary screening of oral cancer. The present invention includes a handle, a probe rod is fixedly connected to the handle, a telescopic rod is provided at the end of the probe rod away from the handle, a scraping head is provided at the end of the telescopic rod away from the probe rod, and a pressure sensor is provided on the scraping head; an adsorption sleeve is provided on the probe rod, the adsorption sleeve extends toward the scraping head and is sleeved on the outside of the telescopic rod, an adsorption port is provided at the end of the adsorption sleeve close to the scraping head, and the adsorption sleeve is connected to a negative pressure suction source; and a controller is also included, the controller is used to collect the contact pressure between the scraping head and the side wall of the patient's mouth, and control the contact pressure between the scraping head and the side wall of the patient's mouth within a preset range through the telescopic rod. The technical solution of the present invention is used to control the force of the scraper to improve the collection effect.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a sampling device for auxiliary screening of oral cancer. Background Art

[0002] Oral cancer is a common malignancy, and early diagnosis is crucial for improving cure and survival rates. However, traditional oral cancer screening methods rely primarily on visual observation and palpation, which can be highly subjective and difficult to detect early lesions. An oral cancer biopsy is a key medical procedure used to diagnose oral cancer or precancerous lesions. A small tissue sample is removed from the suspected lesion area for pathological examination to determine the presence of cancerous or abnormal cells.

[0003] In the prior art, oral swabs are a common and relatively simple method for collecting cells. If the operation is standardized, the swab can effectively collect cell samples from the soft tissue inside the mouth, providing sufficient material for subsequent testing. However, if the swab is not scraped hard enough or the collection site is inaccurate during collection, it may result in insufficient cell collection, affecting the sensitivity of the test. The scraping method can obtain soft tissue samples more directly, but it requires certain skills and experience during operation. If the scraping force is too strong, it may cause discomfort or bleeding to the patient, affecting the quality of the sample; if the scraping force is too weak or the collection site is not comprehensive, it may result in insufficient sample cell quantity or poor representativeness, thereby affecting the screening accuracy. Summary of the Invention

[0004] To solve the above problems, the present invention provides a sampling device for auxiliary screening of oral cancer, which is used to control the force of the scraper to improve the collection effect.

[0005] To achieve the above-mentioned object, the technical solution of the present invention is as follows: a sampling device for auxiliary screening of oral cancer, comprising a handle, a probe rod fixedly connected to the handle, a telescopic rod provided at one end of the probe rod away from the handle, a scraping head provided at one end of the telescopic rod away from the probe rod, and a pressure sensor provided on the scraping head;

[0006] An adsorption sleeve is provided on the probe rod, the adsorption sleeve extends toward the scraping head and is sleeved outside the telescopic rod, an adsorption port is provided on one end of the adsorption sleeve close to the scraping head, and the adsorption sleeve is connected to a negative pressure suction source;

[0007] It also includes a controller, which is used to collect the contact pressure between the scraping head and the side wall of the patient's mouth through a pressure sensor, and control the contact pressure between the scraping head and the side wall of the patient's mouth within a preset range through a telescopic rod.

[0008] The above scheme has the following beneficial effects:

[0009] 1. In this solution, the user holds the handle and inserts the probe into the patient's mouth. The suction port of the suction sleeve generates suction under the action of a negative pressure source, drawing the patient's oral cavity into the suction port. This tightens the oral cavity's sidewalls, minimizing elastic deformation caused by the scraping head during contact, making it easier to control scraping force.

[0010] 2. In this solution, a telescopic rod is used to bring the scraping head into contact with the side wall of the patient's mouth to scrape the sample. A pressure sensor detects the contact pressure between the scraping head and the side wall of the patient's mouth, allowing the controller to adjust the scraping force to achieve optimal results. Because the side wall of the mouth is covered with mucous membranes, the user can manually slide the suction sleeve and scraping head, using the lubrication of the mucous membrane, to collect a sheet sample.

[0011] Furthermore, a plurality of pressure-sensitive liquid storage chambers are provided on one side of the adsorption sleeve close to the adsorption port, and lubricating coupling liquid is provided in the pressure-sensitive liquid storage chambers. The pressure-sensitive liquid storage chambers are used to release the lubricating coupling liquid when the contact pressure between the adsorption sleeve and the side wall of the patient's mouth is greater than a preset value.

[0012] Beneficial Effects: The lubricating coupling fluid can further enhance the lubrication effect and facilitate sliding acquisition. The pressure-sensitive liquid reservoir can release the lubricating coupling fluid under pressure during the suction process of the adsorption sleeve, thus preparing a lubricating environment for subsequent sliding.

[0013] Furthermore, the pressure-sensitive liquid storage chamber includes a cavity with an opening on one side, and an elastic valve is provided at the opening of the cavity.

[0014] Beneficial effect: The elastic valve will open when the pressure-sensitive liquid storage chamber is pressurized, thereby releasing the lubricating coupling fluid in the chamber.

[0015] Furthermore, the adsorption sleeve is made of a transparent material.

[0016] Beneficial effect: The user can observe through the adsorption sleeve to determine the collection position, which is convenient for the user to operate.

[0017] Furthermore, a light source is provided at one end of the probe rod away from the handle.

[0018] Beneficial effects: The light conditions in the oral cavity are poor, and the light source can provide appropriate light in the patient's oral cavity, making it easier for the user to observe in the oral cavity.

[0019] Furthermore, the scraping head includes a base, which is fixedly connected to the telescopic rod, and a bracket is detachably connected to the base, a scraper is fixedly connected to one side of the bracket, and a stop block is slidably connected to the other side of the bracket;

[0020] The pressure sensor is fixedly connected to the base, and the side of the abutment block close to the base abuts against the pressure sensor.

[0021] Beneficial Effects: The introduction of pressure sensors and negative pressure suction sources increases costs, and the cost of disposal after use is high. Therefore, making some structures detachable and connectable allows for partial replacement to reduce costs.

[0022] Furthermore, the adsorption sleeve is detachably connected to the probe rod.

[0023] Benefits: The suction sleeve comes into direct contact with the side walls of the patient's mouth during use and therefore needs to be replaced. The detachable connection allows the user to replace the suction sleeve if it becomes contaminated, thereby reducing costs through partial replacement.

[0024] Furthermore, the base, the pressure sensor, the telescopic rod and the probe rod are all covered with a film layer, and the film layer includes several layers of disposable films.

[0025] Benefits: Although the base, pressure sensor, telescopic rod, and probe don't typically come into direct contact with the patient's mouth, they still present a risk of contamination. The membrane prevents contamination from coming into contact with the base, pressure sensor, telescopic rod, and probe. After a single sampling session, the outermost disposable membrane is removed to eliminate contamination.

[0026] Furthermore, an electromagnet is provided on the base, the bracket is made of ferromagnetic metal, and the base and the bracket are detachably connected through magnetism.

[0027] Beneficial Effect: A magnetic attraction is formed between the electromagnet and the bracket, thereby stabilizing the bracket's position. The magnetic attraction can penetrate the membrane layer to act, allowing the bracket to fit with the base through the membrane layer.

[0028] Furthermore, a power source is provided on the handle, a negative pressure suction source is located on the handle, and the negative pressure suction source is connected to an air pipe, which passes through the handle and the probe rod and extends to an end of the probe rod away from the handle;

[0029] A switch for controlling the electromagnet and the negative pressure suction source is provided on the probe rod.

[0030] Beneficial effects: The user can control the negative pressure suction and the electromagnet through the switch on the handle, which is easy to operate. In addition, the connection between the suction sleeve and the negative pressure suction source is achieved through the air tube built into the handle and the probe rod.

[0031] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is an axonometric diagram of an embodiment of a sampling device for auxiliary screening of oral cancer according to the present invention;

[0033] Figure 2A schematic diagram of a scraping head of an embodiment of a sampling device for auxiliary screening of oral cancer according to the present invention;

[0034] Figure 3 A cross-sectional view of an adsorption sleeve of an embodiment of a sampling device for auxiliary screening of oral cancer according to the present invention;

[0035] Figure 4 for Figure 2 A magnified schematic diagram of part A;

[0036] Figure 5 Schematic diagram of the pressure-sensitive liquid storage chamber of an embodiment of the sampling device for auxiliary screening of oral cancer of the present invention.

[0037] The figure marks in the drawings of the specification include: 1. handle; 2. probe rod; 3. telescopic rod; 4. scraping head; 5. pressure sensor; 6. adsorption sleeve; 7. adsorption port; 8. pressure-sensitive liquid storage chamber; 9. lubricating coupling liquid; 10. cavity; 11. elastic valve; 12. light source; 13. base; 14. bracket; 15. scraper; 16. block; 17. electromagnet; 18. switch; 19. negative pressure suction source; 20. trachea. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0041] The following is further described in detail through specific implementation methods:

[0042] Example 1:

[0043] As attached Figure 1-Figure 5 The figure shows a sampling device for auxiliary screening of oral cancer, comprising a handle 1, a probe rod 2 being fixed to the handle 1 with bolts, a telescopic rod 3 being fixed to the end of the probe rod 2 away from the handle 1 with bolts, the telescopic rod 3 being a miniature electric push rod, a scraping head 4 being mounted on the end of the telescopic rod 3 away from the probe rod 2, the scraping head 4 comprising a base 13, the base 13 being welded to the telescopic rod 3, a bracket 14 being detachably connected to the base 13, a scraping blade 15 being integrally formed on one side of the bracket 14, the scraping blade 15 having a certain amplitude, and a stop block 16 being slidably connected to the other side of the bracket 14;

[0044] The pressure sensor 5 is fixed to the base 13 by bolts, and the abutment block 16 abuts against the pressure sensor 5 on a side close to the base 13 .

[0045] An adsorption sleeve 6 is provided on the probe rod 2, which extends toward the scraping head 4 and is sleeved on the outside of the telescopic rod 3. The adsorption sleeve 6 is detachably connected to the probe rod 2. The adsorption sleeve 6 is made of transparent material. An adsorption port 7 is provided at one end of the adsorption sleeve 6 close to the scraping head 4. The adsorption sleeve 6 is connected to a negative pressure suction source 19; a plurality of pressure-sensitive liquid storage chambers 8 are provided on one side of the adsorption sleeve 6 close to the adsorption port 7. The pressure-sensitive liquid storage chamber 8 includes a cavity 10 with an opening on one side, and an elastic valve 11 is integrally formed at the opening of the cavity 10. A lubricating coupling liquid 9 is provided in the cavity 10. The lubricating coupling liquid 9 is a high-viscosity, non-toxic, and biocompatible liquid. The pressure-sensitive liquid storage chamber 8 is used to release the lubricating coupling liquid 9 when the contact pressure between the adsorption sleeve 6 and the side wall of the patient's mouth is greater than a preset value.

[0046] The device further comprises a controller for collecting the contact pressure between the scraping head 4 and the side wall of the patient's oral cavity, and controlling the contact pressure between the scraping head 4 and the side wall of the patient's oral cavity to be within a preset range through the telescopic rod 3 .

[0047] The user can hold the handle 1 and insert the probe 2 into the patient's mouth. The suction port 7 of the suction sleeve 6 can generate suction under the action of the negative pressure suction source 19, thereby sucking the patient's oral side wall into the suction port 7. At this time, the oral side wall of the suction suction port 7 will be tightened to reduce the elastic deformation caused by the contact of the scraping head 4, making it easier to control the scraping force. Compared with directly scraping the patient's oral side wall, the oral side wall will not bulge outward due to pressure after adsorption, and can better contact with the patient's oral side wall. At the same time, it can also adapt to the changes in elastic coefficient caused by the different thickness of tissues in different parts of the patient's mouth, simplifying the control accuracy requirements and error rate.

[0048] The scraping head 4 is brought into contact with the sidewalls of the patient's mouth via the telescopic rod 3 to scrape the sample. The pressure sensor 5 detects the contact pressure between the scraping head 4 and the sidewalls of the patient's mouth, thereby achieving optimal scraping force under the control of the controller. Because the sidewalls of the mouth are covered with mucous membranes, and the pressure-sensitive liquid reservoir 8 is able to release lubricating coupling fluid 9 under pressure during the suction process of the suction sleeve 6, creating a well-lubricated environment, the user can manually slide the suction sleeve 6 and scraping head 4 to collect sheet samples, thanks to the lubrication of the mucous membranes.

[0049] The pressure-sensitive liquid storage chamber 8 completes the pressure release process through the elastic valve 11. Under normal conditions, the elastic valve 11 can restrain the lubricating coupling fluid 9 in the chamber 10, preventing the lubricating coupling fluid 9 from flowing out of the chamber 10. When the elastic valve 11 is pressurized, the restraint process is broken, thereby releasing the lubricating coupling fluid 9 to the outside.

[0050] After collecting oral cancer samples from patients, the subsequent disinfection process is more troublesome because they come into contact with the patient's mucosa. Conventional oral swabs and scrapers are disposable, but the cost of the telescopic rod 3, controller, and pressure sensor 5 is relatively high. Therefore, by designing the part that contacts the patient's oral side wall as a detachable connection, it can be replaced after use to complete local replacement, thereby reducing cost consumption during use.

[0051] Since the pressure sensor 5 is used to detect the contact pressure between the scraping head 4 and the side wall of the patient's mouth, the butt 16 is designed to slide and transmit pressure, so that the pressure sensor 5 does not need to directly contact the side wall of the mouth. Instead, the butt 16 replaces the pressure sensor 5 to make contact. In this way, when a partial replacement is performed, the pressure sensor 5 does not need to be replaced, thereby reducing costs.

[0052] The user can observe through the adsorption sleeve 6 to determine the collection position, which is convenient for the user to operate.

[0053] The base 13, pressure sensor 5, telescopic rod 3, and probe 2 are all covered with a membrane layer comprising several layers of disposable membrane. An electromagnet 17 is mounted on the base 13, and the bracket 14 is made of ferromagnetic metal. The base 13 and bracket 14 are detachably connected via magnetic connections. The handle 1 is equipped with a power supply, and a negative pressure suction source 19 is located on the handle 1. This negative pressure suction source 19 is connected to an air tube 20, which passes through the handle 1 and the probe 2 and extends to the end of the probe 2 away from the handle 1.

[0054] A switch 18 for controlling the electromagnet 17 and the negative pressure suction source 19 is provided on the probe rod 2 .

[0055] Although the base 13, pressure sensor 5, telescopic rod 3 and probe rod 2 are not in direct contact with the patient's oral cavity in most cases, there is still a risk of contamination. The membrane layer can prevent pollution from contacting the base 13, pressure sensor 5, telescopic rod 3 and probe rod 2. After completing a single sampling, the outermost disposable membrane is torn off to remove the contamination. A magnetic attraction is formed between the electromagnet 17 and the bracket 14. Since the bracket 14 will scrape the inner wall of the patient's oral cavity, it is preferred to use an electromagnet 17 with a magnetic attraction greater than 1kg, such as ELE-P13 / 20 and ELE-P13 / 30, which have a diameter of only 13mm and a suction force of more than 1kg, thereby stabilizing the position of the bracket 14. The magnetic attraction can penetrate the membrane layer to act, so that the bracket 14 can cooperate with the base 13 across the membrane layer, and can be installed quickly and easily.

[0056] In addition, as the disposable film is torn off, the film layer gradually becomes thinner. However, since the bracket 14 also gradually moves closer as the film layer becomes thinner, each time the film layer becomes thinner, the movement trajectory of the block 16 is based on the bracket 14, and the overall trajectory of the block 16 becomes closer, so the pressure data detected by the pressure sensor 5 changes less.

[0057] The user can control the negative pressure suction and the electromagnet 17 by the switch 18 on the handle 1, which is convenient for operation. In addition, the suction sleeve 6 is connected to the negative pressure suction source 19 through the handle 1 and the built-in air pipe 20 of the probe rod 2.

[0058] Example 2:

[0059] The difference from the previous embodiment is that the elastic valve 11 is composed of two arc-shaped thin sheets. The vertices of the two sheets are in contact with each other under the action of elasticity, thereby constraining the lubricating coupling fluid 9 in the cavity 10. The two sheets are open at the arc portion outside the cavity 10. When the sheets are subjected to pressure, the open arc portion expands under the pressure, causing the vertices of the two sheets to separate and release the lubricating coupling fluid 9.

[0060] Example 3:

[0061] The difference from the above embodiment is that a light source 12 is provided at the end of the probe rod 2 away from the handle 1 , and the light source 12 is an LED lamp.

[0062] The light condition in the oral cavity is poor, and the light source 12 can provide appropriate light in the patient's oral cavity to facilitate the user to observe in the oral cavity.

[0063] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A sampling device for auxiliary screening of oral cancer, characterized in that: The invention comprises a handle (1), a probe rod (2) is fixedly connected to the handle (1), a telescopic rod (3) is provided at one end of the probe rod (2) away from the handle (1), a scraping head (4) is provided at one end of the telescopic rod (3) away from the probe rod (2), and a pressure sensor (5) is provided on the scraping head (4); The probe rod (2) is provided with an adsorption sleeve (6), which extends in the direction of the scraping head (4) and is sleeved on the outside of the telescopic rod (3). The adsorption sleeve (6) is provided with an adsorption port (7) at one end close to the scraping head (4). The adsorption sleeve (6) is connected to a negative pressure suction source (19). The adsorption port (7) of the adsorption sleeve (6) can generate suction under the action of the negative pressure suction source (19), thereby sucking the side wall of the patient's oral cavity into the adsorption port (7). At this time, the side wall of the oral cavity sucked by the adsorption port (7) will be tightened to reduce the elastic deformation generated when the scraping head (4) contacts, thereby facilitating the control of the scraping force. The controller is further comprised of a controller for collecting the contact pressure between the scraping head (4) and the side wall of the patient's oral cavity through a pressure sensor (5), and controlling the contact pressure between the scraping head (4) and the side wall of the patient's oral cavity through a telescopic rod (3) to be within a preset range; A plurality of pressure-sensitive liquid storage chambers (8) are provided on one side of the adsorption sleeve (6) close to the adsorption port (7), wherein lubricating coupling liquid (9) is provided in the pressure-sensitive liquid storage chambers (8), and the pressure-sensitive liquid storage chambers (8) are used to release the lubricating coupling liquid (9) when the contact pressure between the adsorption sleeve (6) and the side wall of the patient's oral cavity is greater than a preset value; The scraping head (4) includes a base (13), the base (13) is fixedly connected to the telescopic rod (3), a bracket (14) is detachably connected to the base (13), a scraper (15) is fixedly connected to one side of the bracket (14), and a stop block (16) is slidably connected to the other side of the bracket (14); The pressure sensor (5) is fixedly connected to the base (13), and the side of the abutment block (16) close to the base (13) abuts against the pressure sensor (5).

2. The oral cancer auxiliary screening sampling device according to claim 1, characterized in that: The pressure-sensitive liquid storage chamber (8) comprises a chamber (10) with an opening on one side, and an elastic valve (11) is provided at the opening of the chamber (10).

3. The oral cancer auxiliary screening sampling device according to claim 2, characterized in that: The adsorption sleeve (6) is made of transparent material.

4. The sampling device for auxiliary screening of oral cancer according to claim 3, characterized in that: A light source (12) is provided at one end of the probe rod (2) away from the handle (1).

5. The oral cancer auxiliary screening sampling device according to claim 4, characterized in that: The adsorption sleeve (6) is detachably connected to the probe rod (2).

6. The sampling device for auxiliary screening of oral cancer according to claim 5, characterized in that: The base (13), the pressure sensor (5), the telescopic rod (3) and the probe rod (2) are all covered with a film layer, which includes several layers of disposable films.

7. The sampling device for auxiliary screening of oral cancer according to claim 6, characterized in that: An electromagnet (17) is provided on the base (13), the bracket (14) is made of ferromagnetic metal, and the base (13) and the bracket (14) are detachably connected through magnetism.

8. The oral cancer auxiliary screening sampling device according to claim 7, characterized in that: The handle (1) is provided with a power source, a negative pressure suction source (19) is located on the handle (1), the negative pressure suction source (19) is connected to an air pipe (20), and the air pipe (20) passes through the handle (1) and the probe rod (2) and extends to an end of the probe rod (2) away from the handle (1); The probe rod (2) is provided with a switch (18) for controlling the electromagnet (17) and the negative pressure suction source (19).

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