CN113974749A - Quick hemostasis device of artery for operation - Google Patents
Quick hemostasis device of artery for operation Download PDFInfo
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- CN113974749A CN113974749A CN202111352297.4A CN202111352297A CN113974749A CN 113974749 A CN113974749 A CN 113974749A CN 202111352297 A CN202111352297 A CN 202111352297A CN 113974749 A CN113974749 A CN 113974749A
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- rod
- pressing plate
- connecting rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord for haemostasis, for prevention of bleeding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Surgical Instruments (AREA)
Abstract
本发明涉及医疗器材技术领域，具体为手术用动脉快速止血装置，包括第一支杆、第二支杆，第二支杆一端安装支撑垫，第一支杆上与支撑垫相对应的一端滑动连接连杆，连杆紧贴支撑垫的一端安装按压板，连杆与第一支杆的连接处安装用于限制连杆相对第一支杆向远离支撑垫方向滑动的第一限制单元，第一支杆、第二支杆与安装盒滑动连接，安装盒上安装用于第一支杆、第二支杆相对安装盒同步滑动的调节单元，且形成通过第一支杆、第二支杆相对安装盒的同步滑动调节支撑垫与按压板之间距离，并使得支撑垫与按压板位置始终相对的结构，安装盒上安装用于限制支撑垫与按压板相远离的第二限制单元，本发明便于进行快速止血，使用方便快捷。
The invention relates to the technical field of medical equipment, in particular to an arterial rapid hemostasis device for surgery, comprising a first support rod and a second support rod, a support pad is installed at one end of the second support rod, and one end of the first support rod corresponding to the support cushion slides The connecting rod is connected, and a pressing plate is installed at one end of the connecting rod close to the support pad, and a first restricting unit is installed at the connection between the connecting rod and the first support rod for restricting the sliding of the connecting rod relative to the first support rod in the direction away from the support pad. A pole and a second pole are slidably connected with the installation box, and an adjustment unit for the first pole and the second pole to slide synchronously relative to the installation box is installed on the installation box, and is formed through the first pole and the second pole The distance between the support pad and the pressing plate is adjusted relative to the synchronous sliding of the installation box, so that the position of the support pad and the pressing plate is always opposite to each other. The invention facilitates rapid hemostasis and is convenient and quick to use.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an artery rapid hemostasis device for an operation.
Background
Often need pierce the artery during interventional therapy, need stanch to the artery in the postoperative, current artery hemostasis measure is mostly to bind oppression formula hemostasis device. It is generally fixed with the mode of binding earlier, then oppress the artery with the clamp plate and make unable circulation of blood, but in the in-service use, after binding fixedly, need rotate adjustment handle or make the head of oppression slowly push down the blood vessel through electronic button and finally accomplish the oppression, operating time is longer, in addition, when accomplishing to bind when oppressing hemostasis after fixed, need aim at the artery with the clamp plate and just can implement the oppression, and in case not aim at when binding fixedly, need loosen earlier and bind fixing device and just can carry out readjustment of position, thereby make current hemostasis device can not use fast.
Disclosure of Invention
Aiming at the defects in the prior art and overcoming the defects in the prior art, the invention aims to provide a quick surgical artery hemostasis device, and solves the problem that the existing hemostasis device cannot be used quickly.
The technical proposal is that the artery rapid hemostasis device for the operation comprises a first supporting rod and a second supporting rod, one end of the second supporting rod is provided with a supporting pad, one end of the first supporting rod corresponding to the supporting pad is connected with a connecting rod in a sliding way, a pressing plate is arranged at one end of the connecting rod close to the supporting pad, a first limiting unit for limiting the connecting rod to slide relative to the first supporting rod in the direction far away from the supporting pad is arranged at the joint of the connecting rod and the first supporting rod, the first support rod and the second support rod are connected with the mounting box in a sliding way, the mounting box is provided with an adjusting unit for the first support rod and the second support rod to synchronously slide relative to the mounting box, and the distance between the supporting pad and the pressing plate is adjusted by the synchronous sliding of the first supporting rod and the second supporting rod relative to the mounting box, and the mounting box is provided with a second limiting unit for limiting the distance between the supporting pad and the pressing plate.
Preferably, the connecting rod is slidably connected with a first push rod and a second push rod, the first push rod is rotatably connected with one end of a first guide rod, the other end of the first guide rod is rotatably connected with one end of a pressing plate made of a plastic material, a third limiting unit used for limiting the first push rod to move towards the direction away from the pressing plate is installed at the joint of the first push rod and the connecting rod, the second push rod is rotatably connected with one end of a second guide rod, the other end of the second guide rod is rotatably connected with the other end of the pressing plate, a fourth limiting unit used for limiting the second push rod to move towards the direction away from the pressing plate is installed at the joint of the second push rod and the connecting rod, and the joint of the connecting rod and the pressing plate is located between the two ends of the pressing plate.
Preferably, the adjusting unit comprises a gear, the gear is rotatably connected with the mounting box, a first rack meshed with the gear is arranged on the first supporting rod, and a second rack meshed with the gear is arranged on the second supporting rod.
Preferably, a stop block is arranged at one end of the first supporting rod far away from the connecting rod and one end of the second supporting rod far away from the supporting pad.
Preferably, the end of the connecting rod far away from the pressing plate is provided with a second handle.
Preferably, the connecting rod is provided with a first sliding groove and a second sliding groove, a first strip hole is formed in the side surface of the first sliding groove, a second strip hole is formed in the side surface of the second sliding groove, the first push rod is connected with the connecting rod in a sliding mode through the first sliding groove, the first guide rod penetrates through the first strip hole and is connected with the second push rod in a rotating mode, the second push rod is connected with the connecting rod in a sliding mode through the second sliding groove, the second guide rod penetrates through the second strip hole and is connected with the second push rod in a rotating mode, and a first handle is installed at one end, extending out of the connecting rod, of the first push rod and the second push rod.
Preferably, the third limiting unit includes an installation sleeve, the installation sleeve is fixed relative to the connecting rod, a clamping rod is slidably connected in the installation sleeve, a pull block is installed on a portion, extending out of the installation sleeve, of one end of the clamping rod, a clamping block is installed at the other end of the clamping rod, an elastic piece made of elastic material is installed between the clamping block and the installation sleeve, a clamping groove matched with the clamping block is formed in the first push rod, a side face, far away from the pressing plate, of each clamping groove is slidably connected with the clamping block, the side face, close to the pressing plate, of each clamping groove is in contact fit with the surface of the clamping block, and the first limiting unit, the second limiting unit, the fourth limiting unit and the third limiting unit are identical in structure and principle.
Preferably, the mounting box is provided with a first through hole and a second through hole, the first through hole and the second through hole are arranged in a crossed mode, the first supporting rod is connected with the mounting box in a sliding mode through the first through hole, the second supporting rod is connected with the mounting box in a sliding mode through the second through hole, and the mounting box is rotatably connected with the gear at an area, adjacent to the area where the supporting pad is located, in the area separated by the crossed first through hole and the second through hole in a rotating mode.
The invention provides an artery rapid hemostasis device for operation, which has the following beneficial effects compared with the prior art:
1. during the use, place the pressure board in blood vessel department earlier, through making first branch, the synchronous slip of the relative mounting box of second branch, reduce the supporting pad and press the distance between the pressure board, make the supporting pad, press pressure board and human contact, prevent through second restriction unit that the supporting pad keeps away from mutually with the pressure board, make the relative first branch of connecting rod slide towards the supporting pad direction again, make and press the blood vessel of pressure board extrusion, simultaneously through first restriction unit restriction supporting pad and the distance between the pressure board, thereby be convenient for carry out quick hemostasis.
2. After the pressing plate extrudees blood vessel department through the connecting rod, if whole hemostasis device is human fixed insecure relatively, through making first push rod, the relative connecting rod of second push rod slides, can be so that the pressing plate is the arc, it is firmly fixed with the human body to be convenient for hemostasis device, when hemostasis device is in the use, when pressing the position and the blood vessel of the connecting rod junction in the pressing plate to some extent deviate, through making first push rod, the relative connecting rod of second push rod slides, make other positions and the blood vessel compressive contact according to the pressing plate, thereby stanch, thereby do not aim at the blood vessel again because of some deviations.
Drawings
Fig. 1 is a schematic front view of the present invention.
FIG. 2 is a partial enlarged view of the present invention at A.
FIG. 3 is a schematic view of the direction B-B of the present invention.
FIG. 4 is a schematic view of the present invention in the direction C-C.
FIG. 5 is a schematic view of the direction D-D of the present invention.
FIG. 6 is an enlarged view of a portion of the present invention at E.
Fig. 7 is an enlarged rear view of the mounting box of the present invention.
FIG. 8 is an enlarged view of the direction F-F of the present invention.
In the figure: 1 first branch, 2 second branch, 3 supporting pads, 4 connecting rods, 5 pressing plates, 6 mounting boxes, 7 first limiting units, 8 adjusting units, 8.1 gears, 8.2 first racks, 8.3 second racks, 9 second limiting units, 10 first push rods, 11 second push rods, 12 first guide rods, 13 second guide rods, 14 third limiting units, 14.1 mounting sleeves, 14.2 clamping rods, 14.3 clamping blocks, 14.4 elastic pieces, 14.5 clamping grooves, 14.6 pulling blocks, 15 fourth limiting units, 16 first sliding grooves, 17 second sliding grooves, 18 first long strip holes, 19 second long strip holes, 20 first handles, 21 second handles, 22 first through holes, 23 second through holes and 24 stop blocks.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without any creative effort belong to the protection scope of the present invention, and in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance in the description of the present invention, it being noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Referring to fig. 1-8, the present invention provides a technical solution: the quick artery hemostasis device for the operation comprises a first supporting rod 1, a second supporting rod 2, a supporting pad 3 is fixedly bonded at one end of the second supporting rod 2, a connecting rod 4 is slidably connected with one end of the first supporting rod 1 corresponding to the supporting pad 3, a pressing plate 5 is fixedly bonded at one end of the connecting rod 4 close to the supporting pad 3, a first limiting unit 7 used for limiting the sliding of the connecting rod 4 relative to the first supporting rod 1 in the direction away from the supporting pad 3 is installed at the joint of the connecting rod 4 and the first supporting rod 1, the first supporting rod 1 and the second supporting rod 2 are slidably connected with an installation box 6, an adjusting unit 8 used for synchronously sliding the first supporting rod 1 and the second supporting rod 2 relative to the installation box 6 is installed on the installation box 6, the distance between the supporting pad 3 and the pressing plate 5 is adjusted through the synchronous sliding of the first supporting rod 1 and the second supporting rod 2 relative to the installation box 6, and the supporting pad 3 and the pressing plate 5 are always in a relative position structure, the mounting box 6 is provided with a second limiting unit 9 for limiting the distance between the supporting pad 3 and the pressing plate 5, when in use, the pressing plate 5 is firstly placed at a blood vessel, the first support rod 1 and the second support rod 2 synchronously slide relative to the mounting box 6 to reduce the distance between the supporting pad 3 and the pressing plate 5, so that the supporting pad 3 and the pressing plate 5 are in contact with the human body, the second limiting unit 9 prevents the supporting pad 3 and the pressing plate 5 from being far away, and then the connecting rod 4 slides relative to the first support rod 1 towards the supporting pad 3, so that the pressing plate 5 extrudes the blood vessel, and the first limiting unit 7 limits the distance between the supporting pad 3 and the pressing plate 5, thereby facilitating quick hemostasis, and in use, the blood vessel hemostatic bag does not need to be bound, fixed and then aligned and pressed downwards, and firstly aligned and then directly passes through the first support rod 1, the second support rod 2 slides relative to the mounting box 6, and the connecting rod 4 slides relative to the first support rod 1, can stop bleeding, and is convenient and quick to use.
In one embodiment, a first push rod 10 and a second push rod 11 are slidably connected to a connecting rod 4, the first push rod 10 is rotatably connected to one end of a first guide rod 12, the other end of the first guide rod 12 is rotatably connected to one end of a pressing plate 5 made of a plastic material, the pressing plate 5 is made of a suitable material such as rubber, plastic, etc., a third limiting unit 14 for limiting the movement of the first push rod 10 in the direction away from the pressing plate 5 is installed at the connection position of the first push rod 10 and the connecting rod 4, the second push rod 11 is rotatably connected to one end of a second guide rod 13, the other end of the second guide rod 13 is rotatably connected to the other end of the pressing plate 5, a fourth limiting unit 15 for limiting the movement of the second push rod 11 in the direction away from the pressing plate 5 is installed at the connection position of the second push rod 11 and the connecting rod 4, the connection position of the connecting rod 4 and the pressing plate 5 is located between the two ends of the pressing plate 5, when the pressing plate 5 extrudes a blood vessel through the connecting rod 4, if whole hemostasis device is fixed insecure relatively to the human body, through making first push rod 10, the relative connecting rod 4 of second push rod 11 slides, can make to press the clamp plate 5 to be the arc, it is firmly fixed with the human body to be convenient for hemostasis device, in the hemostasis device in the use, press the position and the blood vessel of the junction with connecting rod 4 in the clamp plate 5 when deviating to some extent, through making first push rod 10, the relative connecting rod 4 of second push rod 11 slides, make other positions and the blood vessel compressive contact of pressing the clamp plate 5, thereby stanch, thereby do not aim at the blood vessel again because of having deviating to some extent.
In an embodiment, a first sliding groove 16 and a second sliding groove 17 are formed in the connecting rod 4, a first long hole 18 is formed in a side surface of the first sliding groove 16, a second long hole 19 is formed in a side surface of the second sliding groove 17, the first push rod 10 is slidably connected with the connecting rod 4 through the first sliding groove 16, the first guide rod 12 penetrates through the first long hole 18 to be rotatably connected with the second push rod 11, the second push rod 11 is slidably connected with the connecting rod 4 through the second sliding groove 17, the second guide rod 13 penetrates through the second long hole 19 to be rotatably connected with the second push rod 11, one end, extending out of the connecting rod 4, of the first push rod 10 and the second push rod 11 is fixedly connected with a first handle 20, and the first handle 20 is provided with two handles, so that the first push rod 10 and the second push rod 11 can slide relative to the connecting rod 4 conveniently.
In one embodiment, the third limiting unit 14 includes a mounting sleeve 14.1, the mounting sleeve 14.1 is fixed relative to the connecting rod 4, a clamping rod 14.2 is slidably connected in the mounting sleeve 14.1, a portion of one end of the clamping rod 14.2 extending out of the mounting sleeve 14.1 is bonded with a fixed pulling block 14.6, the other end of the clamping rod 14.2 is bonded with a fixed clamping block 14.3, an elastic member 14.4 made of elastic material such as a spring is installed between the clamping block 14.3 and the mounting sleeve 14.1, the elastic member 14.4 is clamped between the clamping block 14.3 and the mounting sleeve 14.1, the elastic member 14.4 is externally sleeved on the clamping rod 14.2, a clamping groove 14.5 matched with the clamping block 14.3 is formed in the first push rod 10, a side surface far from the pressing plate 5 in each clamping groove 14.5 is slidably connected with the clamping block 14.3, a side surface of each clamping groove 14.5 tightly attached to the pressing plate 5 is in contact with a surface of the clamping block 14.3, wherein each clamping groove 14.5 is linearly arranged and closely adjacent clamping grooves are in contact with each clamping plate 14.5, the first push rod 10 is limited to move towards the direction far away from the pressing plate 5, when the first push rod 10 moves towards the pressing plate 5 relative to the connecting rod 4, the side surface of each clamping groove 14.5 far away from the pressing plate 5 is connected with the clamping block 14.3 in a sliding mode, the clamping block 14.3 is pushed to be separated from the clamping groove 14.5, the first push rod 10 does not move towards the pressing plate 5 relative to the connecting rod 4, the third limiting unit 14 limits the first push rod 10 to move towards the direction far away from the pressing plate 5, when the pulling block 14.6 is pulled to enable the elastic piece 14.4 to be in a compression state, the third limiting unit 14 does not work, the first limiting unit 7, the second limiting unit 9, the fourth limiting unit 15 and the third limiting unit 14 are identical in structure and principle, the fourth limiting unit 15 and the third limiting unit 14 are symmetrically arranged, in the first limiting unit 7, the mounting sleeve 14.1 is fixedly bonded with the first support rod 1, and the clamping groove 14.5 is formed in the outer side surface of the connecting rod 4, in the second restriction unit 9, the installation sleeve 14.1 is fixed with the mounting box 6 in a bonding manner, the clamping groove 14.5 is formed in the first supporting rod 1, the first supporting rod 1 and the second supporting rod 2 slide synchronously relative to the mounting box 6, and the second supporting rod 2 can be limited to slide relative to the mounting box 6 by limiting the sliding of the first supporting rod 1 relative to the mounting box 6, so that the supporting pad 3 is limited to be away from the pressing plate 5.
In an embodiment, one end of the connecting rod 4 away from the pressing plate 5 is fixedly bonded with the second handle 21, and the sliding of the connecting rod 4 relative to the first supporting rod 1 is facilitated by the second handle 21, wherein the mounting sleeve 14.1 in the third limiting unit 14, the mounting sleeve 14.1 in the fourth limiting unit 15 and the second handle 21 are fixedly bonded.
In an embodiment, the adjusting unit 8 includes a gear 8.1, the gear 8.1 is rotatably connected to the mounting box 6, a first rack 8.2 engaged with the gear 8.1 is disposed on the first supporting rod 1, a second rack 8.3 engaged with the gear 8.1 is disposed on the second supporting rod 2, and the first supporting rod 1 and the second supporting rod 2 synchronously slide relative to the mounting box 6 through engagement of the gear 8.1 with the first rack 8.2 and the second rack 8.3, wherein a clamping groove 14.5 is formed in one side of a side surface of the first supporting rod 1, and the first rack 8.2 is disposed on the other side of the side surface of the first supporting rod 1.
In one embodiment, the mounting box 6 is provided with a first through hole 22 and a second through hole 23, the first through hole 22 and the second through hole 23 are arranged in a crossed manner, the first support rod 1 is connected with the mounting box 6 in a sliding manner through the first through hole 22, the second support rod 2 is connected with the mounting box 6 in a sliding manner through the second through hole 23, the mounting box 6 is rotatably connected with a gear 8.1 at an area adjacent to an area where the support pad 3 is located in an area where the first through hole 22 and the second through hole 23 are crossed, wherein the gear 8.1 is located at an upper area in the area where the first through hole 22 and the second through hole 23 are crossed, the support pad 3 is located at a right area in the area where the first through hole 22 and the second through hole 23 are crossed, when the gear 8.1 rotates clockwise, the first support rod 1 moves to the lower left, the second support rod 2 moves to the upper left, so as to reduce the distance between the support pad 3 and the pressing plate 5, and simultaneously because the first support rod 1, the second through hole 23 is arranged in a crossed manner, The synchronous slip of second branch 2 relative mounting box 6 for supporting pad 3 is relative with pressing the pressure board 5 position all the time, second restriction unit 9 does not influence the slip of first branch 1 relative mounting box 6 this moment, thereby form through first branch 1, the synchronous slip regulation supporting pad 3 of second branch 2 relative mounting box 6 and press the distance between the pressure board 5, and make supporting pad 3 and the structure relative all the time of pressing the pressure board 5 position, when gear 8.1 wants to want anticlockwise rotation, second restriction unit 9 prevents the slip of first branch 1 relative mounting box 6, gear 8.1 does not rotate, thereby prevent the slip of second branch 2 relative mounting box 6, thereby restriction supporting pad 3 keeps away from with pressing the pressure board 5 mutually.
In an embodiment, the end of the first support rod 1 away from the connecting rod 4 and the end of the second support rod 2 away from the supporting pad 3 are bonded to fix the stopper 24, so that the first support rod 1 and the second support rod 2 are prevented from being separated from the mounting box 6 by the stopper 24, and the first support rod 1 and the second support rod 2 can slide relative to the mounting box 6 by the cooperation of the stopper 24 and the mounting box 6.
The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111352297.4A CN113974749B (en) | 2021-11-16 | 2021-11-16 | Arterial rapid hemostasis device for surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111352297.4A CN113974749B (en) | 2021-11-16 | 2021-11-16 | Arterial rapid hemostasis device for surgery |
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| CN113974749A true CN113974749A (en) | 2022-01-28 |
| CN113974749B CN113974749B (en) | 2023-07-25 |
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| CN214572586U (en) * | 2021-02-06 | 2021-11-02 | 安徽伽马莱恩机器人有限公司 | Sewing machine monitored control system installation device convenient to installation |
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|---|---|---|---|---|
| US7189247B1 (en) * | 2002-09-06 | 2007-03-13 | Conmed Endoscopic Technologies, Inc. | Endoscopic band ligator |
| US20160066925A1 (en) * | 2013-05-07 | 2016-03-10 | Wave Biotech Pty Ltd | Clamping Device for Reducing Venous Blood Flow |
| US20160100841A1 (en) * | 2014-10-09 | 2016-04-14 | Cardiomedical Gmbh | Surgical instrument |
| US20200310137A1 (en) * | 2017-11-24 | 2020-10-01 | Goertek Technology Co.,Ltd. | Adjusting apparatus and head-mounted display device |
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| CN113974749B (en) | 2023-07-25 |
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