CN113633508A - Adaptive headrest device and operation method thereof - Google Patents

Adaptive headrest device and operation method thereof Download PDF

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Publication number
CN113633508A
CN113633508A CN202110997055.4A CN202110997055A CN113633508A CN 113633508 A CN113633508 A CN 113633508A CN 202110997055 A CN202110997055 A CN 202110997055A CN 113633508 A CN113633508 A CN 113633508A
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China
Prior art keywords
hydraulic telescopic
telescopic rod
adaptive
head
neck
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CN202110997055.4A
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Chinese (zh)
Inventor
李宏伟
马星辰
陈怡新
贺谦
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Xian Jiaotong University
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Xian Jiaotong University
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Priority to CN202110997055.4A priority Critical patent/CN113633508A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
    • A61G15/10—Parts, details or accessories
    • A61G15/12—Rests specially adapted therefor, e.g. for the head or feet
    • A61G15/125—Head-rests
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N2/00—Magnetotherapy
    • A61N2/004—Magnetotherapy specially adapted for a specific therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N2/00—Magnetotherapy
    • A61N2/004—Magnetotherapy specially adapted for a specific therapy
    • A61N2/006—Magnetotherapy specially adapted for a specific therapy for magnetic stimulation of nerve tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/40—General characteristics of devices characterised by sensor means for distance

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  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Neurology (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

A self-adaptive headrest device and an operation method thereof comprise a support plate, a hydraulic telescopic rod, a rotating structure and a support rod; two backup pads pass through hydraulic telescoping rod and connect, and the both ends of every backup pad all are provided with revolution mechanic, all are connected with the bracing piece on every revolution mechanic, and revolution mechanic can drive the bracing piece and rotate around the tip of backup pad. The invention provides an adjustable neck support structure, the head and neck data of each patient can be obtained by an internal adjusting motor and a sensor of the adaptive headrest structure, so that a rolling structure is adjusted to a supporting point adaptive to the head and the neck of the patient, the comfort of the patient is improved, the patient does not feel tired in long-time non-movable treatment, the aim of fixing the head of the patient is fulfilled, the head movement of the patient is reduced, and the probe can more accurately treat the affected part.

Description

Adaptive headrest device and operation method thereof
Technical Field
The invention belongs to the technical field of headrests, and particularly relates to a self-adaptive headrest device and an operation method thereof.
Background
At present, there are some problems in the design of neck of traditional medical chair: the head of the patient can not be fixed better, the sitting experience of the patient is not good, the headrest interferes with treatment around the brain sometimes, and part of the headrest can not adapt to the patient with different body shapes.
Disclosure of Invention
An object of the present invention is to provide an adaptive headrest apparatus and an operating method thereof to solve the above problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a self-adaptive headrest device comprises a supporting plate, a hydraulic telescopic rod, a rotating structure and a supporting rod; two backup pads pass through hydraulic telescoping rod and connect, and the both ends of every backup pad all are provided with revolution mechanic, all are connected with the bracing piece on every revolution mechanic, and revolution mechanic can drive the bracing piece and rotate around the tip of backup pad.
Furthermore, the rotating structure is a rotating motor, and the supporting rod is vertically arranged at the output end of the rotating motor.
Furthermore, one end of the hydraulic telescopic rod is also provided with a rotating motor; the output end of the rotating motor is fixedly connected with the hydraulic telescopic rod.
Furthermore, a distance measuring sensor is arranged on one of the support plates and used for measuring head data.
Furthermore, hydraulic telescoping rod and revolution mechanic all connect outside PLC controller.
Furthermore, the outer sides of the supporting plate and the supporting rod are provided with soft pads with PVC wrapping cotton cores.
Further, an operation method of the adaptive headrest apparatus includes the steps of:
step 1, collecting head and neck data through a distance sensor;
step 2, calculating the telescopic length of the hydraulic telescopic rod, the rotation angle of the hydraulic telescopic rod and the rotation angle of the supporting rod according to the collected head and neck data;
and 3, controlling the rotation structure and the hydraulic telescopic rod to move through an external PLC, so as to realize self-adaptive adjustment.
Further, in step 1, the collected data includes: v2、H1、H2、L1、L2In mm;
V2: the vertical distance between the back of the brain bump and the middle point of the back of the neck and the root of the hair; h1: horizontal lines of bumps behind the brain; h2: a horizontal line through the mid-posterior neck; distance between head and neck L1(ii) a Head-back distance L2。
Further, step 2 specifically includes:
Δβ＝arctan(L1/V2)
Figure BDA0003234197110000021
Δα1＝Δα2＝2arctan(60/H2)
Δα3＝Δα4＝2arctan(80/H1)
the angle delta beta is the rotation angle of the hydraulic telescopic rod; the telescopic length of the delta eta hydraulic telescopic rod; delta alpha1＝Δα2，Δα3＝Δα4The rotation angle of the support rod.
Compared with the prior art, the invention has the following technical effects:
the invention provides an adjustable neck support structure, the head and neck data of each patient can be obtained by an internal adjusting motor and a sensor of the adaptive headrest structure, so that a rolling structure is adjusted to a supporting point adaptive to the head and the neck of the patient, the comfort of the patient is improved, the patient does not feel tired in long-time non-movable treatment, the aim of fixing the head of the patient is fulfilled, the head movement of the patient is reduced, and the probe can more accurately treat the affected part.
The invention drives the adjustment of the internal mechanical structure through the motor, can be self-adapted to the experiencers with different heights, body types and skull types, and has enhanced comfort level.
According to the invention, the embedded transmission structure and the sensor are utilized, when a seat is seated, the neck is leaned against the neck support, at the moment, the sensor detects head data, the back-of-brain salient points are determined and transmitted to the PLC for calculation, a series of head and neck data of a patient are obtained through estimation, and the motor drives the mechanical structure in the headrest to be supported to a proper position, so that the pillow can adapt to patients with different body types, and the comfort and the fixation are ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of data acquisition according to the present invention;
FIG. 3 is a schematic diagram of data acquisition according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1 to 3, an adaptive headrest apparatus includes a support plate 1, a hydraulic telescopic rod 2, a rotating structure 3, and a support rod 4; two backup pads 1 pass through hydraulic telescoping rod 2 and connect, and the both ends of every backup pad 1 all are provided with revolution mechanic 3, all are connected with bracing piece 4 on every revolution mechanic 3, and revolution mechanic 3 can drive bracing piece 4 and rotate around the tip of backup pad 1.
The rotating structure 3 is a rotating motor, and the support rod 4 is vertically arranged at the output end of the rotating motor.
One end of the hydraulic telescopic rod 2 is also provided with a rotating motor; the output end of the rotating motor is fixedly connected with the hydraulic telescopic rod 2.
One of the support plates 1 is provided with a distance measuring sensor for measuring head data. And the hydraulic telescopic rod 2 and the rotating structure 3 are both connected with an external PLC controller.
The measurement items are as follows (see fig. 1):
1.V1: vertical distance from the root of the hair at the midpoint of the back of the neck to the head
2.V2: perpendicular distance between the convex point of back of brain and the middle point of back of neck and hair root
3.V3: perpendicular distance between neck top root circumference and neck bottom root circumference
4.V4: circumference distance between vertex and back of brain bump
5.V5: circumference distance between the top of head and the middle point of neck and at the root of hair
6.H1: horizontal line of protruding points after passing through brain
7.H2: horizontal line through mid-neck
8.H3: distance between two shoulder ends
9.H4: circumference of salient point after passing through brain
10.H5: girth of mid-back of neck
11. Two points are marked on the head: p1 (retrocerebro convex point) and P2 (midportion of the neck) calculate the head-neck distance L1 and the head-back distance L2. Supporting plate 1, hydraulic telescopic rod 2, rotating structure 3 and supporting rod 4
The mechanical support structure inside the headrest is shown in fig. 1, and the mechanical support structure supports a plate 1 and fixes a neck and a back head. The rotating and telescoping structures can be adjusted according to the measured data and procedures to accommodate different patients.
The mathematical relationship between the movement of the various structures and the patient data is explained:
the alpha angle is an adjustable angle of a mechanical and electric structure, is 0-60 degrees and is respectively alpha1，α2，α3，α4
The beta angle is the rotation angle of the hydraulic telescopic rod 2, and the adjustable angle is 0-30 DEG
The length eta is the telescopic length of the hydraulic telescopic rod 2, and the adjusting range is 0-30 mm
From beta, alpha1，α2，α3，α4The 6 variables of η are adjusted according to the following formula to suit different persons.
After each use, the click motor automatically returns to the initial position, namely beta and alpha1，α2，α3，α4And η all return to 0. data is acquired when the patient leans the neck against the support plate: v2、H1、H2、L1、L2(unit mm)
Δβ＝arctan(L1/V2)
Figure BDA0003234197110000041
Δα1＝Δα2＝2arctan(60/H2)
Δα3＝Δα4＝2arctan(80/H1)
The design steps and method are as follows:
the method comprises the following steps:
the fixed supporting plate is arranged on the TMS treatment seat
Connecting two supporting plates by hydraulic telescopic structure
Step two:
the two supporting plates are respectively connected with a rotating structure
Then the support rods are respectively connected to the rotating structures
Connecting in motor, testing mobility
Step three
Installation data measuring sensor
Step four
The entire structure is wrapped with a soft cushioning material (PVC padded cotton core) exposing the sensor for comfort, aesthetics and to prevent the patient's hair from being pinched into the rotating mechanical structure. The flexible and rotary place is not filled with soft cushion, and is connected by using folding PVC, so that there is a movable space
The adjusting method based on the structure comprises the following steps:
the structure for realizing stretching and angle adjustment adopts an alternating current servo motor. The servo system is an automatic control system which enables output controlled variables such as the position, orientation, state and the like of an object to follow any changes of an input target (or a given value). Servo mainly relies on the pulse to fix a position, servo motor receives 1 pulse, will rotate the angle that 1 pulse corresponds, thereby realize the displacement, because, servo motor itself possesses the function of sending the pulse, so every angle of rotation of servo motor, all can send the pulse of corresponding quantity, so, with the pulse formation of servo motor acceptance the call-up, or the closed loop, so, the system will know how many pulses of having sent for servo motor, how many pulses of having received again simultaneously return, so, the rotation of control motor that just can be very accurate, thereby realize accurate location.
The servo motor has three control modes: position mode, torque mode, speed mode
The servo motor for realizing extension and retraction adopts a position mode and is matched with the ball screw type module;
in the position mode, the PLC determines the size of the rotating speed in a mode of sending a pulse to the driver; the angle of rotation is determined by the number of pulses sent.
The structure for realizing angle control rotation is 4 alternating current servo motors. Different from a servo motor for controlling extension and contraction, the external output torque of a motor shaft is set by inputting an external analog quantity or directly assigning an address by adopting a torque mode.

Claims (9)

1. A self-adaptive headrest device is characterized by comprising a supporting plate (1), a hydraulic telescopic rod (2), a rotating structure (3) and a supporting rod (4); two backup pads (1) are connected through hydraulic telescoping rod (2), and the both ends of every backup pad (1) all are provided with revolution mechanic (3), all are connected with bracing piece (4) on every revolution mechanic (3), and revolution mechanic (3) can drive bracing piece (4) and rotate around the tip of backup pad (1).
2. An adaptive headrest apparatus according to claim 1, characterized in that the rotary structure (3) is a rotary motor, and the support rod (4) is vertically installed at the output end of the rotary motor.
3. An adaptive headrest arrangement according to claim 2, characterized in that one end of the hydraulic telescopic rod (2) is also provided with a rotary motor; the output end of the rotating motor is fixedly connected with a hydraulic telescopic rod (2).
4. An adaptive headrest arrangement according to claim 1, characterized in that a distance measuring sensor is arranged on one of the support plates (1) for measuring head data.
5. An adaptive headrest arrangement according to claim 1, characterized in that both the hydraulic telescopic rod (2) and the rotary structure (3) are connected to an external PLC controller.
6. An adaptive headrest device according to claim 1, characterized in that the supporting plate (1) and the supporting rod (4) are provided with soft pads wrapped with PVC cotton core at the outer sides.
7. An operation method of an adaptive headrest apparatus, characterized in that an adaptive headrest apparatus according to any one of claims 1 to 6, includes the steps of:
step 1, collecting head and neck data through a distance sensor;
step 2, calculating the telescopic length of the hydraulic telescopic rod, the rotation angle of the hydraulic telescopic rod and the rotation angle of the supporting rod according to the collected head and neck data;
and 3, controlling the rotation structure and the hydraulic telescopic rod to move through an external PLC, so as to realize self-adaptive adjustment.
8. The method of claim 7, wherein the step 1, the data collected comprises: v2, H1, H2, L1, L2, in mm;
v2: the vertical distance between the back of the brain bump and the middle point of the back of the neck and the root of the hair; h1: horizontal lines of bumps behind the brain; h2: a horizontal line through the mid-posterior neck; head-neck distance L1; back-to-head distance L2.
9. The operating method of an adaptive headrest apparatus according to claim 8, wherein the telescopic length of the hydraulic telescopic rod, the rotation angle of the hydraulic telescopic rod, and the rotation angle of the support rod in step 2 are specifically calculated as:
Δβ＝arctan(L1/V2)
Figure FDA0003234197100000021
Δα1＝Δα2＝2arctan(60/H2)
Δα3＝Δα4＝2arctan(80/H1)
hydraulic telescopic rod with delta beta angleThe angle of rotation of (a); the telescopic length of the delta eta hydraulic telescopic rod; delta alpha1＝Δα2，Δα3＝Δα4The rotation angle of the support rod.
CN202110997055.4A 2021-08-27 2021-08-27 Adaptive headrest device and operation method thereof Pending CN113633508A (en)

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5484188A (en) * 1992-09-24 1996-01-16 Siemens Aktiengesellschaft Dental patient chair
JPH10234710A (en) * 1997-02-25 1998-09-08 Nishikawa Sangyo Kk Head part measuring instrument
JP2005124796A (en) * 2003-10-23 2005-05-19 Sml Ltd Headrest device and medical chair and medical bed equipped with the same
WO2008135587A1 (en) * 2007-05-08 2008-11-13 Sirona Dental Systems Gmbh Treatment chair comprising a headrest control and method for the adjustment of a treatment chair
CN205836596U (en) * 2016-07-14 2016-12-28 大唐南京发电厂 A kind of U-shaped headrest of bus seat ergonomics
CN111345910A (en) * 2020-03-19 2020-06-30 太和县卡巴拉医疗设备有限公司 Emergency surgery head and neck fixing device
CN113289265A (en) * 2021-04-09 2021-08-24 重庆大学附属肿瘤医院 Method for manufacturing bonded headrest, terminal device, and computer-readable storage medium

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5484188A (en) * 1992-09-24 1996-01-16 Siemens Aktiengesellschaft Dental patient chair
JPH10234710A (en) * 1997-02-25 1998-09-08 Nishikawa Sangyo Kk Head part measuring instrument
JP2005124796A (en) * 2003-10-23 2005-05-19 Sml Ltd Headrest device and medical chair and medical bed equipped with the same
WO2008135587A1 (en) * 2007-05-08 2008-11-13 Sirona Dental Systems Gmbh Treatment chair comprising a headrest control and method for the adjustment of a treatment chair
CN205836596U (en) * 2016-07-14 2016-12-28 大唐南京发电厂 A kind of U-shaped headrest of bus seat ergonomics
CN111345910A (en) * 2020-03-19 2020-06-30 太和县卡巴拉医疗设备有限公司 Emergency surgery head and neck fixing device
CN113289265A (en) * 2021-04-09 2021-08-24 重庆大学附属肿瘤医院 Method for manufacturing bonded headrest, terminal device, and computer-readable storage medium

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