Flaring device for oral examination of chemotherapy patient

By designing a flared frame body and an adjustable pulling arm, the problem of difficulty in adjusting the operation and direction of multiple people in oral examinations of chemotherapy patients is solved, achieving convenient cheek expansion and observation convenience for single persons.

CN223220428UActive Publication Date: 2025-08-15PEKING UNIVERSITY THIRD HOSPITAL (THE THIRD CLINICAL MEDICAL SCHOOL OF PEKING UNIVERSITY)
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Patent Information

Application Number
CN202422205722.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-10
Publication Date
2025-08-15
Estimated Expiration
2034-09-10

AI Technical Summary

Technical Problem

During oral examinations by existing chemotherapy patients, multiple people often need to manually expand their cheeks, and the existing flaring device is difficult to adjust the expansion direction, which affects the observation efficiency.

Method used

A flarator is designed including a frame body and a pulling arm. The frame body is fixed to the patient's head through a screw and a screw hole. The pulling arm is connected by a ball and a screw, allowing adjustment of the pulling direction and force. The flaring plate is used to separate the cheeks from the gums.

Benefits of technology

It realizes single-person operation and adjustable cheek expansion, improving the convenience and efficiency of oral observation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a flaring device for oral examination of a chemotherapy patient. The flaring device is characterized by comprising a frame body and two traction arms, the frame body is in an n shape and comprises a top wall, a left wall and a right wall. A first screw hole is formed in the top wall, and second screw holes are formed in the left wall and the right wall respectively. A first screw rod is mounted in the first screw hole; second screw rods are respectively mounted in the second screw holes in the left wall and the right wall; round holes are respectively formed in the left wall and the right wall; third screw holes are respectively formed in the front sides of the left wall and the right wall; third screw rods are mounted in the third screw holes respectively; each traction arm comprises a round ball, and the traction arms are installed in the corresponding round holes through the round balls; arc-shaped concave surfaces corresponding to the outer surfaces of the balls are formed on the inner circumferential surfaces of the circular holes, and the ends of the third screw rods abut against the outer surfaces of the corresponding balls, so that the balls are fixed in the corresponding circular holes; for each ball, a fourth screw rod is mounted in a manner of transversely penetrating through the center of the ball; and a flaring plate is formed at one end of the fourth screw rod.
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Description

Technical Field

[0001] The present application relates to a medical device, and in particular to a mouth expander for oral examination of chemotherapy patients. Background Art

[0002] During oral examinations of chemotherapy patients, a mouth expander is needed to separate the cheeks and gums as much as possible to facilitate observation of the oral mucosa or gums after chemotherapy. A common method is for doctors or nurses to hold retractors on both sides to lift or separate the cheeks outward, which requires more manpower. There is also a V-shaped mouth expander that is inserted into the patient's mouth and uses elastic force to open to the left and right to separate the cheeks. Although this mouth expander saves manpower, the direction of expansion is basically unadjustable, and the expanded cheeks may not be convenient for doctors to observe the chemotherapy in the mouth. Utility Model Content

[0003] In view of the above problems, the present application aims to propose a mouth expander for oral examination of chemotherapy patients, which can help expand the cheeks, separate the cheeks from the gums, and facilitate adjustment of the pulling direction and angle to meet the needs of intraoral observation.

[0004] The oral expander for oral examination of chemotherapy patients of the present application comprises: a frame body, two pulling arms;

[0005] The frame body is formed in a "∩" shape, including a top wall, a left wall, and a right wall; a first screw hole is formed on the top wall, and a second screw hole is formed on the left wall and the right wall respectively; a first screw is installed in the first screw hole; a first rubber head is formed at the end of the first screw, and the first head is used to support the top of the subject's head; a second screw is installed in the second screw holes in the left wall and the right wall respectively, and a second rubber head is formed on the end head of each second screw, and the two second heads are respectively supported on the left and right sides of the subject's head, thereby fixing the frame body to the subject's head through the first head and the two second heads; a circular hole is formed on the left wall and the right wall respectively; a third screw hole is formed on the front side of the left wall and the right wall respectively; a third screw is installed in the third screw hole respectively; for each third screw hole, it is connected to the corresponding circular hole, wherein the end head of the installed third screw points to the center of the corresponding circular hole;

[0006] For each pulling arm, it includes a round ball, and the pulling arm is installed in the corresponding round hole through the round ball; the inner circumferential surface of the round hole is formed with an arc-shaped concave surface corresponding to the outer surface of the round ball, and the end of the third screw rests on the outer surface of the corresponding round ball, thereby fixing the round ball in the corresponding round hole; for each round ball, a fourth screw hole is formed across the center of the round ball, and a fourth screw is installed in the fourth screw hole, and the two ends of the fourth screw extend to the outside of the two sides of the corresponding fourth screw hole respectively; a curved expansion plate is formed at one end of the fourth screw; the expansion plate is located in the frame body; a groove is formed on the side of the expansion plate that contacts the lip, and the groove is used to accommodate the edge portion of the lip.

[0007] Preferably, a plurality of fifth screw holes are formed on the rear side of the frame body, and a fifth screw rod is installed in each fifth screw hole; the fifth screw rod is used to support the frame body at a predetermined height when the subject is in a supine position.

[0008] Preferably, each ball is formed with a handwheel on one end of the fourth screw hole away from the flaring plate, and the corresponding ball is rotated by operating the handwheel to adjust the insertion length of the corresponding fourth screw.

[0009] The present invention relates to a mouth expander for oral examinations of chemotherapy patients. A frame is secured to the patient's head, and a pull arm mounted on the frame is inserted into the patient's mouth to pull the cheek away from the gums, facilitating observation of the patient's oral cavity after chemotherapy. The pull arm is mounted on the frame via a ball. By rotating the ball, the force line of the pull arm can be adjusted to meet the specific needs of pulling the cheek. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of the oral expander for oral examination of chemotherapy patients;

[0011] Figure 2 for Figure 1 A schematic diagram of the main structure of a mouth expander for oral examination of chemotherapy patients;

[0012] Figure 3 for Figure 1 A schematic diagram of the side view of a mouth expander for oral examination of chemotherapy patients;

[0013] Figure 4 This is a schematic diagram of the three-dimensional structure of the frame body of the oral expander for oral examination of chemotherapy patients in this application;

[0014] Figure 5 for Figure 4 A schematic diagram of the main structure of the frame body;

[0015] Figure 6 for Figure 4 A schematic cross-sectional structure diagram of a frame body;

[0016] Figure 7 This is a schematic diagram of the three-dimensional structure of the pulling arm of the oral expander for oral examination of chemotherapy patients in this application;

[0017] Figure 8 for Figure 7 A schematic diagram of the main structure of the pulling arm;

[0018] Figure 9 for Figure 7 Schematic diagram of the top view of the pulling arm. DETAILED DESCRIPTION

[0019] Below, the oral expander for oral examination of chemotherapy patients of the present application is described in detail with reference to the accompanying drawings.

[0020] The oral expander for oral examination of chemotherapy patients of the present application includes: a frame body 10 and two pulling arms 20.

[0021] The frame body 10 is formed in a "∩" shape, including a top wall, a left wall, and a right wall; a first screw hole 15 is formed on the top wall, and second screw holes 16 are respectively formed on the left wall and the right wall; a first screw rod 11a is installed in the first screw hole 15; a first rubber pin is formed at the end of the first screw rod 11a, and the first pin is used to support the top of the subject's head; second screw rods 11b are respectively installed in the second screw holes 16 on the left wall and the right wall, and a second rubber pin is formed on the end of each second screw rod 11b, and the two second pins are respectively supported on the left and right sides of the subject's head, thereby fixing the frame body to the subject's head through the first pin and the two second pins.

[0022] Circular holes 17 are formed on the left wall and the right wall respectively; third screw holes 18 are formed on the front sides of the left wall and the right wall respectively; third screw rods 13 are installed in the third screw holes 18 respectively; for each third screw hole 18, it is connected to the corresponding circular hole 17, wherein the end of the installed third screw rod 13 points to the center of the corresponding circular hole 17.

[0023] For each pulling arm 20, it includes a ball 21, and the pulling arm 20 is installed in the corresponding circular hole 17 through the ball 21; the inner circumferential surface of the circular hole 17 is formed with an arc-shaped concave surface corresponding to the outer surface of the ball 21, and the end of the third screw 13 rests on the outer surface of the corresponding ball 21, thereby fixing the ball 21 in the corresponding circular hole 17.

[0024] For each ball 21, a fourth screw hole is formed across the center of the ball 21, and a fourth screw rod 23 is installed in the fourth screw hole. Both ends of the fourth screw rod 23 extend to the outside of both sides of the corresponding fourth screw hole respectively; a curved expansion plate 24 is formed at one end of the fourth screw rod 23; the expansion plate 24 is located in the frame body; a groove is formed on the side of the expansion plate 24 that contacts the lips, and the groove is used to accommodate the edge portion of the lips.

[0025] A plurality of fifth screw holes 14 are formed on the rear side of the frame body 10 , and a fifth screw rod 12 is installed in each of the fifth screw holes 14 ; the fifth screw rod 12 is used to support the frame body 10 at a predetermined height when the subject is in a supine position.

[0026] A hand wheel 22 is formed on one end of each ball 21 at the fourth screw hole away from the expansion plate 24 . The hand wheel 22 is used to rotate the corresponding ball 21 to adjust the insertion length of the corresponding fourth screw rod 23 .

[0027] During use, if the subject is in an upright or sitting position, the frame is secured to the subject's head via the first and two second screws. Adjusting the insertion depth of the first screw also adjusts the height of the two traction arms, thereby determining whether the traction arms are pulling horizontally, diagonally upward, or diagonally downward. The second head of the second screw is typically secured to the subject's temple, but can also be secured to the outside of the cheekbone. After loosening the third screw, the ball rotates within the circular hole, adjusting the extension direction of the fourth screw, which corresponds to the direction of the traction force line of the traction arms. By rotating the ball with the handwheel, the depth of insertion of the fourth screw can be adjusted, thereby adjusting the traction force exerted by the traction arms on the cheeks. After adjusting the traction force and the direction of the traction force line, the third screw is re-tightened and the ball is secured, thereby fixing the traction direction and force of the fourth screw. After the expansion plate is placed over the edge of the lip through the mouth, it pulls the cheek away from the gums based on the adjusted force and line of force, creating ample space for observation. The grooves in the expansion plate securely hold the lip edge in place, preventing it from slipping out. If the patient is recumbent, the frame's height can be adjusted using multiple fifth screws.

Claims

1. A mouth expander for oral examination of chemotherapy patients, characterized in that include: Frame body, two pulling arms; The frame body is formed in a "∩" shape, including a top wall, a left wall, and a right wall; a first screw hole is formed on the top wall, and a second screw hole is formed on the left wall and the right wall respectively; a first screw is installed in the first screw hole; a first rubber head is formed at the end of the first screw, and the first head is used to support the top of the subject's head; a second screw is installed in the second screw holes in the left wall and the right wall respectively, and a second rubber head is formed on the end head of each second screw, and the two second heads are respectively supported on the left and right sides of the subject's head, thereby fixing the frame body to the subject's head by the first head and the two second heads; a circular hole is formed on the left wall and the right wall respectively; a third screw hole is formed on the front side of the left wall and the right wall respectively; a third screw is installed in the third screw hole respectively; for each third screw hole, it is connected to the corresponding circular hole, wherein the end head of the installed third screw points to the center of the corresponding circular hole; For each pulling arm, it includes a round ball, and the pulling arm is installed in the corresponding round hole through the round ball; the inner circumferential surface of the round hole is formed with an arc-shaped concave surface corresponding to the outer surface of the round ball, and the end of the third screw rests on the outer surface of the corresponding round ball, thereby fixing the round ball in the corresponding round hole; for each round ball, a fourth screw hole is formed across the center of the round ball, and a fourth screw is installed in the fourth screw hole, and the two ends of the fourth screw extend to the outside of the two sides of the corresponding fourth screw hole respectively; a curved expansion plate is formed at one end of the fourth screw; the expansion plate is located in the frame body; a groove is formed on the side of the expansion plate that contacts the lip, and the groove is used to accommodate the edge portion of the lip.

2. The oral expander for chemotherapy patients according to claim 1, characterized in that: A plurality of fifth screw holes are formed on the rear side of the frame body, and a fifth screw rod is installed in each of the fifth screw holes; the fifth screw rod is used to support the frame body at a predetermined height when the subject is in a supine position.

3. The oral expander for oral examination of chemotherapy patients according to claim 1, characterized in that: A hand wheel is formed on one end of each ball of the fourth screw hole away from the expansion plate, and the corresponding ball is rotated by operating the hand wheel to adjust the insertion length of the corresponding fourth screw rod.