CN210542282U - Obstetric table - Google Patents

Obstetric table Download PDF

Info

Publication number
CN210542282U
CN210542282U CN201920699837.8U CN201920699837U CN210542282U CN 210542282 U CN210542282 U CN 210542282U CN 201920699837 U CN201920699837 U CN 201920699837U CN 210542282 U CN210542282 U CN 210542282U
Authority
CN
China
Prior art keywords
seat
plate
obstetric table
fixed
sliding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201920699837.8U
Other languages
Chinese (zh)
Inventor
张秋香
邱建韬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201920699837.8U priority Critical patent/CN210542282U/en
Application granted granted Critical
Publication of CN210542282U publication Critical patent/CN210542282U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

An obstetric table comprises a base, a back plate, a hip plate, an auxiliary table and two leg supports, wherein the back plate, the hip plate and the auxiliary table are arranged on the base; the leg supporting frame comprises a leg supporting plate, a pedal, a supporting rod, a fixed seat and an L-shaped sliding rod, the fixed seat is welded on the bottom surface of the leg supporting plate, one end of the sliding rod is fixed on the pedal, the fixed seat is provided with a through hole suitable for the sliding rod to pass through, and the sliding rod is connected with nuts positioned on two sides of the fixed seat; the two ends of the supporting rod are provided with a ball body and a sliding seat, the bottom surface of the fixed seat is fixed with a magnetic meter seat, and the bottom surface of the magnetic meter seat is provided with a cavity which is suitable for accommodating the ball body and enabling the magnetic meter seat to rotate relative to the ball body; a channel suitable for the leg supporting frame to horizontally move is reserved between the auxiliary table and the hip plate, and the sliding seat is connected with a square sliding rail with a limiting plate in a sliding manner; the base is provided with a plurality of telescopic cylinders of which the piston rods are fixed at the bottom of the slide rail. This obstetric table can adjust the level position of leg rest to the lying-in woman who is fit for different leg lengths supports the shank, improves the travelling comfort, is favorable to the childbirth to go on smoothly.

Description

Obstetric table
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to obstetric table with adjustable leg rest.
Background
The obstetric table is a medical instrument required by a parturient during childbirth, and the obstetric table used in clinical obstetrics and gynecology at present is mainly a supine position obstetric table. The widely used obstetric table generally comprises a back plate, a hip plate and an auxiliary table, wherein the back plate is subjected to inclination adjustment through a telescopic rod, so that the back plate is rotated to a certain angle to effectively support the back of a puerpera and provide better comfort; handles and leg supports are fixedly arranged on the two sides of the hip plate of the obstetric table.
However, in clinical practice, it is found that the obstetric table is not suitable for the lying-in women with legs of different heights, the leg supports arranged on the two sides of the hip plate cannot horizontally move in the channel between the hip plate and the auxiliary table to adjust the distance between the leg supports, and the height of the leg supports cannot be adjusted quickly and easily, so that the individual lying-in women cannot be supported comfortably and effectively due to the leg length or leg short problem, and the delivery progress of the lying-in women is affected.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the weak point of above-mentioned prior art, the utility model aims to provide an obstetric table, design benefit, the practicality is strong, can carry out the level of leg support frame, vertical removal and can accomplish angle modulation to the lying-in woman who is fit for different leg lengths supports the shank, improves the travelling comfort, helps the childbirth to go on smoothly.
In order to achieve the purpose, the utility model adopts the following technical proposal:
an obstetric table comprises an obstetric table body, wherein the obstetric table body comprises a base, a back plate and a hip plate, the back plate and the hip plate are sequentially arranged on the base, the inclination of the back plate and the inclination of the hip plate are adjustable, and an auxiliary table is fixedly connected to the base and located on one side of the hip plate; wherein, the obstetric table also comprises two leg supports which are arranged above the hip plate and can move vertically and horizontally; the leg supporting frame comprises a leg supporting plate, a pedal, a supporting rod, a fixed seat and an L-shaped sliding rod, the fixed seat is welded on the bottom surface of the leg supporting plate, one end of the sliding rod is fixedly connected to the pedal, the fixed seat is provided with a through hole suitable for the other end of the sliding rod to pass through, and the sliding rod is in threaded connection with two nuts positioned on two sides of the fixed seat; the top of the supporting rod is provided with a ball, the bottom surface of the fixed seat is fixed with a magnetic meter seat, and the bottom surface of the magnetic meter seat is provided with a cavity which is suitable for accommodating the ball and can enable the magnetic meter seat to rotate relative to the ball; a sliding seat is fixed at the bottom end of the supporting rod; a channel suitable for the leg supporting frame to horizontally move is reserved between the auxiliary table and the hip plate, the sliding seat is connected with a sliding rail which is positioned below the auxiliary table and has a square cross section in a sliding manner, and limiting plates are arranged at two ends of the sliding rail; a plurality of uniformly-distributed telescopic cylinders fixed on the obstetric table body are arranged below the slide rail, and piston rods of the telescopic cylinders are fixedly connected to the bottom of the slide rail.
In the obstetric table, the obstetric table body further comprises hook-shaped handles which are arranged on two sides of the hip plate and can swing up and down, sleeves are welded at the bottom ends of the handles, and rotating shafts which can rotate relative to the sleeves penetrate through the sleeves; the base is provided with a handle fixing seat, the handle fixing seat is provided with a U-shaped opening suitable for accommodating the sleeve, the handle fixing seat is provided with a round hole suitable for the rotating shaft to pass through, and the rotating shaft is fixed on the handle fixing seat.
In the obstetric table, the hip plate is provided with a seat cushion made of memory cotton; the hip plate is provided with a groove matched with the seat cushion; the seat cushion is arranged in the groove, and the top surface of the seat cushion is level to the top surface of the hip plate.
In the obstetric table, the seat cushion is L-shaped or T-shaped when viewed from the top.
In the obstetric table, the base is fixed with the guard plate that is located the backplate both sides.
In the obstetric table, the obstetric table body further comprises a control device; the control device is electrically connected to the telescopic cylinder.
Has the advantages that:
the utility model provides an obstetric table, design benefit, the practicality is strong, can not only carry out the level, the vertical removal of leg support frame, still can carry out three-dimensional rotation round the spheroid on the branch to the lying-in woman who is fit for different leg lengths supports the shank, improves the travelling comfort, helps the childbirth to accomplish with the same direction as the benefit. The obstetric table is characterized in that two support rods capable of horizontally moving along the channel are arranged in the channel between the hip plate and the auxiliary table, a ball body is arranged at the top end of each support rod, a magnetic gauge stand below the leg support plate is connected with the ball body, when the obstetric table needs to be adjusted, the magnetic gauge stand loses magnetism, the magnetic gauge stand recovers magnetism after the leg support plate is rotated to a proper angle, and the leg support plate and the support rods are fixed; in addition, the distance between the two leg supporting plates, the distance between the pedal and the leg supporting plates and the height positions of the two leg supporting plates can be adjusted through the movement of the supporting rod and the sliding rod and the action of the telescopic cylinder, so that the leg supporting plates can be used for supporting legs and soles of puerperae with different leg lengths, the leg supporting plates can be well attached to and support shanks of the puerperae, the pedal is well attached to the soles, a better force application point is provided for the soles, the use comfort level of the obstetric table is improved, the force can be effectively applied to the puerperae in the process of delivery properly, and the progress of the labor process is promoted.
Drawings
Fig. 1 is a perspective view of the structure of the obstetric table provided by the utility model.
Fig. 2 is a front view of the structure of fig. 1.
Fig. 3 is a perspective view of the structure of the backboard and the hip plate on the base in the obstetric table provided by the utility model.
Fig. 4 is a perspective view of the leg rest of fig. 1.
Fig. 5 is a perspective view of the hip plate provided in fig. 1.
Fig. 6 is a schematic structural view of the leg rest provided in fig. 1.
Detailed Description
The utility model provides an obstetric table, for making the utility model discloses a purpose, technical scheme and effect are clearer, more clear and definite, and it is right to refer to the attached drawing below and to lift the embodiment the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1, 2, 4 and 6, the utility model provides an obstetric table, which comprises an obstetric table body, wherein the obstetric table body comprises a base 1, a back plate 2 and a hip plate 3 with adjustable inclination, which are sequentially arranged on the base 1, an auxiliary table 4 fixedly connected to the base 1 and positioned at one side of the hip plate 3, and two leg supporting frames 5 which are arranged above the hip plate 3 and can vertically and horizontally move; the backboard 2 is adjusted in inclination by the telescopic rod 21, so that the backboard can be rotated to a certain angle to effectively support the back of the parturient and provide better comfort.
Wherein, leg supporting frame 5 includes shank backup pad 51, footboard 54, branch 56, fixing base 52, be L-shaped slide bar 55, fixing base 52 welds in shank backup pad 51 bottom surface, the one end of slide bar 55 is through welding mode fixed connection in footboard 54, fixing base 52 is seted up and is suitable for the through-hole that the slide bar 55 other end passed, slide bar 55 threaded connection has two nuts that are located fixing base 52 both sides, respectively nut 58 and nut 59, they respectively with fixing base looks butt, make the slide bar be fixed in the fixing base, it is stable motionless, screw up the operation to nut 58 and nut 59 and loosen, then can move the slide bar, adjust the slide bar position after again to nut 58 and nut 59 screw up and meet with the fixing base.
The top of the support rod 56 is provided with a ball 57, the support rod and the ball are made of metal, in this embodiment, an iron material with strong ferromagnetism is selected, and the ball is welded on the support rod. The bottom surface of the fixed seat 52 is fixed with the magnetic gauge stand 53, the bottom surface of the magnetic gauge stand 53 is provided with a cavity which is suitable for accommodating the ball body 57 and can enable the magnetic gauge stand 53 to rotate relative to the ball body 57, and the magnetic gauge stand 53 can be formed by connecting two symmetrical parts through bolts, so that the ball body can be placed in the cavity, the magnetic gauge stand and the ball body are not separated, and the magnetic gauge stand can rotate around the ball body. The magnetic meter base 53 comprises two magnetizers 533, a non-magnetic copper plate 532 positioned between the magnetizers and a permanent magnet 531 capable of rotating, the permanent magnet 531 is rotated by rotating a handle (not shown in the figure) of the magnetic meter base to realize demagnetization and magnetism recovery of the magnetic meter base 53, and then the magnetic force action between the magnetic meter base and the ball 57 on the supporting rod 56 is correspondingly controlled, the magnetic meter base 53 and the ball are fixed through the magnetic force, and the fixing of the leg supporting plate 51 is realized.
The bottom end of the supporting rod 56 is fixed with a sliding seat 7; a channel 8 suitable for the leg supporting frame 5 to horizontally move is reserved between the auxiliary table 4 and the hip plate 3, the sliding seat 8 is connected with a sliding rail 6 which is positioned below the auxiliary table 4 and has a square cross section in a sliding manner, limiting plates 61 are arranged at two ends of the sliding rail 6, and the limiting plates 61 are used for preventing the sliding seat 7 from being separated from the sliding rail 6 when in use; in this embodiment, the limiting plate 61 can be fixedly connected to the end surface of the slide rail 6 through a bolt, so that the limiting plate 61 is conveniently detached, and the sliding seat 7 is separated from the slide rail 6. Of course, the limiting plate 61 may be welded to the end surface of the slide rail 6, and the cross section of the sliding seat 7 is U-shaped. Slide rail 6 below is equipped with a plurality of telescopic cylinder 20 of evenly arranging that are fixed in obstetric table body 1, and telescopic cylinder 20's piston rod fixed connection is in slide rail 6's bottom, in this embodiment, sets up three telescopic cylinder, connects in slide rail 6's bottom surface jointly, realizes the vertical removal of slide rail, and then the high position of control shank backup pad. The sliding seat 7 horizontally moves along the sliding rail 6 with the square cross section and cannot rotate, so that the supporting rod can keep a vertical state, and when a lying-in woman places legs on the leg supporting plate and fits the soles with the pedals and exerts force on the pedals, the supporting rod cannot rotate. Adjust the distance between two shank backup pads through the horizontal migration sliding seat to the action of control telescopic cylinder adjusts the high position of shank backup pad, and then makes the shank backup pad can carry out comfortable effectual support to the shank of the lying-in woman of different leg lengths, and the position through adjusting the slide bar simultaneously lets lying-in woman's sole and footboard laminating, so that the lying-in woman can better application of force when childbirth. The obstetric table can be suitable for parturient parturients with different heights, body types and pelvises, effectively and comfortably supports legs, relieves fatigue, provides powerful support points for soles, and is favorable for the smooth and smooth parturition.
Further, as shown in fig. 3, the obstetric table body further includes hook-shaped handles 9 which are arranged on both sides of the hip plate 3 and can swing up and down, a sleeve 91 is welded at the bottom end of the handle 9, and a rotating shaft 12 which can rotate relative to the sleeve 91 is arranged in the sleeve 91 in a penetrating manner; the base 1 is provided with a handle fixing seat 11, a U-shaped opening suitable for accommodating the sleeve 91 is formed in the middle of the handle fixing seat 11, and a round hole suitable for the rotating shaft 12 to pass through is formed in the handle fixing seat 11. In this embodiment, the rotating shaft 12 can be fixed to the handle holder 11 by screwing with a nut. The diameter of the opening of the sleeve is equal to or larger than that of the rotating shaft. The one end of pivot passes round hole, sleeve in proper order to be connected with the nut, make the pivot be fixed in the handle fixing base, can make the handle rotate round the pivot simultaneously, when not using the handle, can rotate handle 180 to buttockss board below, the lying-in woman of being convenient for lies on the obstetric table, can not receive the hindrance of handle and the injury that the handle led to the fact to it even. The hook-shaped handle increases the contact area of the handle, so that the position of the hands of the puerpera relative to the handle can be changed in the process of delivery, the hands can be guaranteed to better hold the handle and apply force, and the delivery is facilitated to be successfully carried out. As shown in fig. 2 and 3, a dirt basin 10 for collecting sewage and sundries during childbirth is arranged on the base under one side of the hip plate, a supporting guide rail 13 capable of supporting the dirt basin is arranged on the base 1, and the dirt basin 10 can move along the supporting guide rail 13 so as to be conveniently taken out to treat dirt in the basin.
Further, as shown in fig. 5, the hip plate 3 is provided with a seat cushion 32 made of memory cotton; the hip plate 3 is provided with a groove 31 which is matched with the seat cushion 32, the seat cushion 32 is arranged in the groove 31, and the top surface of the seat cushion 32 is level with the top surface of the hip plate 3. Specifically, the seat cushion 32 has an L-shape in a plan view. Of course, the seat cushion 32 can be in a T shape or other shapes, the seat cushion 32 is guaranteed to be clamped with the groove 31, the seat cushion does not horizontally move along with acting force applied to the seat cushion by the buttocks of the lying-in women, the seat cushion 32 is separated from the groove 31, the whole childbirth work is affected, and the seat cushion can be taken out of the groove by hands to be replaced and cleaned, so that cross infection among the lying-in women is avoided. The seat cushion is made of memory cotton, when in use, the waist and the hip of the lying-in woman are pressed on the seat cushion, the seat cushion can be well attached to the hip according to the temperature change of the hip and the waist of the lying-in woman, the surface of the seat cushion is very soft and elastic when being touched, the pressure of the waist and the hip of the lying-in woman can be well eliminated, the waist and the hip are thoroughly relaxed, the mood of the lying-in woman is stable, and the delivery of the lying-in woman is facilitated. The memory cotton (also called slow rebound sponge) has very obvious sticky elasticity characteristic and strong buffering capacity, can be slowly deformed to adapt to the hip and the waist of a lying-in woman, provides the most uniform supporting force, and ensures that the skin of the lying-in woman at the waist and the hip position does not generate oppression, thereby improving the comfort of the hip and the waist of the lying-in woman.
Specifically, as shown in fig. 3, the base 1 is fixed with protection plates 22 at both sides of the backboard 2 to prevent the parturient from inadvertently falling off the obstetric table at the time of childbirth.
Further, the obstetric table body further comprises a control device (not shown in the figure); the control device is electrically connected to the plurality of telescopic cylinders. Through controlling means, but the piston rod action of synchronous control telescopic cylinder realizes the synchronous lift of slide rail. The control device is provided with a controller which can be placed on one side of the obstetric table body, so that medical personnel or a lying-in woman can adjust the height position of the leg supporting plate conveniently. Before the work of childbirth was carried out, the high position of shank backup pad was controlled to the flexible cylinder of accessible to handle through the magnetism gauge stand rotates, adjusts the angle of shank backup pad, adjusts the position of slide bar for the shank backup pad through rotating the nut simultaneously, thereby makes lying in the lying in bed's shank can obtain effective comfortable support, and the sole can be better step on at the footboard, provides the application of force point of preferred, and this lying in bed can be adapted to the lying in woman use of different leg lengths.
To sum up, the utility model provides an obstetric table, design benefit, the practicality is strong, can not only carry out the level, the vertical removal of leg support, still can carry out three-dimensional rotation round the spheroid on the branch to the lying-in woman who is fit for different leg lengths supports the shank, improves the travelling comfort, helps the childbirth to accomplish with the same direction as the benefit.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims (6)

1. An obstetric table comprises an obstetric table body, wherein the obstetric table body comprises a base, a back plate and a hip plate, the back plate and the hip plate are sequentially arranged on the base, the inclination of the back plate and the inclination of the hip plate are adjustable, and an auxiliary table is fixedly connected to the base and located on one side of the hip plate; it is characterized by also comprising two leg supports which are arranged above the hip plate and can vertically and horizontally move; the leg supporting frame comprises a leg supporting plate, a pedal, a supporting rod, a fixed seat and an L-shaped sliding rod, the fixed seat is welded on the bottom surface of the leg supporting plate, one end of the sliding rod is fixedly connected to the pedal, the fixed seat is provided with a through hole suitable for the other end of the sliding rod to pass through, and the sliding rod is in threaded connection with two nuts positioned on two sides of the fixed seat; the top of the supporting rod is provided with a ball, the bottom surface of the fixed seat is fixed with a magnetic meter seat, and the bottom surface of the magnetic meter seat is provided with a cavity which is suitable for accommodating the ball and can enable the magnetic meter seat to rotate relative to the ball; a sliding seat is fixed at the bottom end of the supporting rod; a channel suitable for the leg supporting frame to horizontally move is reserved between the auxiliary table and the hip plate, the sliding seat is connected with a sliding rail which is positioned below the auxiliary table and has a square cross section in a sliding manner, and limiting plates are arranged at two ends of the sliding rail; a plurality of uniformly-distributed telescopic cylinders fixed on the obstetric table body are arranged below the slide rail, and piston rods of the telescopic cylinders are fixedly connected to the bottom of the slide rail.
2. The obstetric table as claimed in claim 1, wherein the obstetric table body further comprises hook-shaped handles which are arranged on two sides of the hip plate and can swing up and down, a sleeve is welded at the bottom end of each handle, and a rotating shaft which can rotate relative to the sleeve is arranged in the sleeve in a penetrating way; the base is provided with a handle fixing seat, the handle fixing seat is provided with a U-shaped opening suitable for accommodating the sleeve, the handle fixing seat is provided with a round hole suitable for the rotating shaft to pass through, and the rotating shaft is fixed on the handle fixing seat.
3. The obstetric table according to claim 1, characterized in that said hip plate is provided with a seat cushion made of memory cotton; the hip plate is provided with a groove matched with the seat cushion; the seat cushion is arranged in the groove, and the top surface of the seat cushion is level to the top surface of the hip plate.
4. The obstetric table of claim 3, wherein said seat cushion is L-shaped or T-shaped in top view.
5. The obstetric table of claim 1, wherein said base is secured with protective plates on both sides of the backboard.
6. The obstetric table of claim 1, wherein said obstetric table body further comprises control means; the control device is electrically connected to the telescopic cylinder.
CN201920699837.8U 2019-05-15 2019-05-15 Obstetric table Expired - Fee Related CN210542282U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920699837.8U CN210542282U (en) 2019-05-15 2019-05-15 Obstetric table

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920699837.8U CN210542282U (en) 2019-05-15 2019-05-15 Obstetric table

Publications (1)

Publication Number Publication Date
CN210542282U true CN210542282U (en) 2020-05-19

Family

ID=70664272

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920699837.8U Expired - Fee Related CN210542282U (en) 2019-05-15 2019-05-15 Obstetric table

Country Status (1)

Country Link
CN (1) CN210542282U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112472493A (en) * 2020-12-07 2021-03-12 李佳 Multifunctional gynecological medical obstetric apparatus convenient to use
CN112741752A (en) * 2021-01-06 2021-05-04 保相实 Artificial intelligence gynaecology and obstetrics nursing device of changing dressings
CN112842783A (en) * 2021-02-22 2021-05-28 日照心脏病医院 Obstetric device for obstetrics and gynecology department
CN114176972A (en) * 2021-12-10 2022-03-15 西南医科大学 Auxiliary delivery device for obstetrics and gynecology department and using method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112472493A (en) * 2020-12-07 2021-03-12 李佳 Multifunctional gynecological medical obstetric apparatus convenient to use
CN112741752A (en) * 2021-01-06 2021-05-04 保相实 Artificial intelligence gynaecology and obstetrics nursing device of changing dressings
CN112842783A (en) * 2021-02-22 2021-05-28 日照心脏病医院 Obstetric device for obstetrics and gynecology department
CN114176972A (en) * 2021-12-10 2022-03-15 西南医科大学 Auxiliary delivery device for obstetrics and gynecology department and using method thereof

Similar Documents

Publication Publication Date Title
CN210542282U (en) Obstetric table
CN211326546U (en) Adjustable leg supporting structure for gynecological examination
JPS59197246A (en) Automatic traction table by mechanical feedback
CN204636864U (en) A kind of multi-functional ophthalmic operating table
CN110559150A (en) leading happy childbirth practise midwifery device with intelligence pronunciation broadcast
CN111297614A (en) Special support of gynaecology's operation
CN209864421U (en) Portable orthopedics nursing fixed bolster
CN209253388U (en) A kind of postoperative care device of neurosurgery
CN212853986U (en) Neurosurgery clinical operation strutting arrangement
CN113616997A (en) Clinical chest knee position exercise auxiliary device of obstetrical department
CN212940442U (en) Prone position head pad
CN210277601U (en) Pelvic floor muscle treatment head fixer
CN204092475U (en) A kind of department of obstetrics and gynecology delivery bed
CN213851768U (en) Obstetrical and gynecological nursing delivery assisting device
CN202179666U (en) Head support for neurosurgical operation
CN212789565U (en) Body-building device suitable for pregnant woman antenatal exercise
CN210020141U (en) Obstetric table
CN208823267U (en) A kind of hematopathy patients Inflatable raising device for lower limbs
CN207768633U (en) Adjustable patient wheelchair shatter-resistant auxiliary device
CN218870738U (en) Midwife is with practise midwifery frame
CN215691469U (en) Obstetric apparatus for fetal delivery
CN109528431A (en) A kind of gynaecology's chair structure
CN218652371U (en) Clinical examination treatment device with convenient regulation
CN210228431U (en) Lumbar spondylolisthesis traction treatment bed
CN214632540U (en) Traction equipment is used in orthopedics nursing convenient to use

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200519

Termination date: 20210515

CF01 Termination of patent right due to non-payment of annual fee