CN108309691B

CN108309691B - Convenient thoracic surgery training appearance of control

Info

Publication number: CN108309691B
Application number: CN201810138701.XA
Authority: CN
Inventors: 胡换平; 童萍; 贺晓; 兰玲
Original assignee: Hubei University Of Technology Affiliated Hospital
Current assignee: Hubei University of technology Affiliated Hospital
Priority date: 2018-02-10
Filing date: 2018-02-10
Publication date: 2020-10-13
Anticipated expiration: 2038-02-10
Also published as: CN108309691A

Abstract

A conveniently controlled thoracic surgery training instrument effectively solves the problem of controlling instruments in the training process; the training arm comprises a first rotating shaft rotationally fixed in the operating arm, the end part of the first rotating shaft is fixedly connected with a rotating arm, the end part of the rotating arm is provided with a handle, the operating arm is rotationally provided with a second rotating shaft, the second rotating shaft is connected with the first rotating shaft through a planetary gear train, and the second rotating shaft is connected with the motor through a belt; the invention has smart structure and reasonable design, can be suitable for different patient groups, can switch the rotating speed in the training process, and avoids secondary damage caused by the fact that the patient cannot adapt to the training intensity.

Description

Convenient thoracic surgery training appearance of control

Technical Field

The invention relates to the technical field of medical instruments for surgery, in particular to a conveniently controlled thoracic surgery training instrument.

Background

Thoracic surgery is a medical special department, which is specialized in the diagnosis and treatment of pathological changes of the thoracic cavity, mainly esophagus, lung and mediastinum, and the field of mammary gland surgery is also classified into the special department, wherein lung surgery and esophageal surgery are mainly used.

The thoracic surgery usually affects upper limb nerves and other muscle tissues, so the thoracic surgery is particularly important for postoperative rehabilitation of patients, hospitals with insufficient medical conditions can recover upper limb functions only by resting, and hospitals with better medical facilities can assist the patients in recovering the upper limb functions, but the upper limb rehabilitation equipment has relatively single functions and is not easy to control at present, particularly, when the patients perform rehabilitation training, hands of the patients cannot be separated from the equipment, the control of the equipment in the training process is very difficult, and the existing equipment does not have a solution to the defect.

Disclosure of Invention

In view of the above situation, in order to overcome the defects of the prior art, the invention aims to provide a conveniently controlled thoracic surgery training instrument, which effectively solves the problem of controlling instruments in the training process.

The technical scheme for solving the problem is that the training arm comprises a base, wherein a supporting column is fixed on the base, an operating arm is arranged on the supporting column, a seat positioned at the end part of the operating arm is arranged on the base, training arms are arranged on two sides of the end part of the operating arm, a motor for driving the training arms to move is arranged in the operating arm, the training arms comprise first rotating shafts rotationally fixed in the operating arm, rotating arms are fixedly connected to the end parts of the first rotating shafts, handles are arranged at the end parts of the rotating arms, second rotating shafts are rotationally arranged in the operating arm, the second rotating shafts are connected with the first rotating shafts through planetary gear trains, and the second rotating shafts are; the planetary gear train comprises a sun gear fixedly connected to a second rotating shaft, the second rotating shaft is rotatably connected with a planetary carrier, the sun gear is externally engaged with a plurality of planet gears fixed to the planetary carrier, an outer gear ring engaged with the planet gears is rotatably connected to the outside of the first rotating shaft, a fixing rod penetrating in the first rotating shaft is arranged between the outer gear ring and the planet gears and can slide in the first rotating shaft, the fixing rod can be fixedly connected with the planet gears or the outer gear ring after sliding, a sliding rod coaxially and rotatably connected with the fixing rod is slidably connected to the inside of the second rotating shaft, the end of the sliding rod extends out of the second rotating shaft, a fixing frame is fixedly connected to the sliding rod, the fixing frame can be fixedly connected with the planetary carrier or the outer gear ring after sliding, and a control device for.

The invention has smart structure and reasonable design, can be suitable for different patient groups, can switch the rotating speed in the training process, and avoids secondary damage caused by the fact that the patient cannot adapt to the training intensity.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a cross-sectional view a-a of fig. 1 of the present invention.

Fig. 3 is an enlarged view of B-B of fig. 2 (a schematic view of a planetary gear train at a first rotational speed) according to the present invention.

Fig. 4 is a schematic structural diagram of the planetary gear train in the invention at the secondary rotation speed.

Fig. 5 is a cross-sectional view of C-C of fig. 3 of the present invention.

Fig. 6 is a cross-sectional view D-D of fig. 3 of the present invention.

Fig. 7 is a cross-sectional view of E-E of fig. 4 in accordance with the present invention.

Fig. 8 is an enlarged schematic view of portion F of fig. 7 of the present invention.

Detailed Description

The following description of the present invention will be made in further detail with reference to the accompanying drawings 1 to 8.

Example (b):

as can be seen from fig. 1 to 8, a conveniently controlled thoracic surgery training instrument comprises a base 1, a support column 2 is fixed on the base 1, an operation arm 3 is arranged on the support column 2, the lengths of the support column 2 and the operation arm 3 can be adjusted, a patient can adjust according to personal physical reasons and personal preferences, a seat 4 is arranged at the end part of the operation arm 3 on the base 1, the patient can optionally sit on the seat 4 for training or stand on the ground for training, training arms 5 are arranged at both sides of the end part of the operation arm 3, a motor 6 for driving the training arms 5 to move is arranged in the operation arm 3, the training arms 5 comprise a first rotating shaft 7 rotatably fixed in the operation arm 3, a rotating arm 8 is fixedly connected at the end part of the first rotating shaft 7, a handle 9 is arranged at the end part of the rotating arm 8, the patient holds the handles 9 of the training arms 5 at both sides for training during training, the rotating speed of the arms 5 is controlled, i.e. control the intensity of the training; a second rotating shaft 10 is rotatably arranged in the operating arm 3, the second rotating shaft 10 is connected with the first rotating shaft 7 through a planet wheel 14, the second rotating shaft 10 is connected with the motor 6 through a belt 11, the motor 6 drives the second rotating shaft 10 to rotate, and the second rotating shaft 10 drives the first rotating shaft 7 to rotate through the planet wheel 14; the planetary gear 14 comprises a sun gear 12 fixedly connected to the second rotating shaft 10, a planet carrier 13 is rotatably connected to the second rotating shaft 10, a plurality of planetary gears 14 fixed to the planet carrier 13 are meshed with the sun gear 12, an outer ring gear 15 meshed with the planetary gears 14 is rotatably connected to the outside of the first rotating shaft 7, a fixing rod 16 penetrating into the first rotating shaft 7 is arranged between the outer ring gear 15 and the planetary gears 14, the fixing rod 16 slides in the first rotating shaft 7, the fixing rod 16 rotates simultaneously with the first rotating shaft 7, the fixing rod 16 can be respectively and fixedly connected with the planetary gears 14 or the outer ring gear 15 after sliding, when the fixing rod 16 is fixedly connected with the planetary gears 14, the fixing rod is disconnected with the outer ring gear 15, the first rotating shaft 7 is powered by the planetary gears 14, when the fixing rod 16 is fixedly connected with the outer ring gear 15, the power of the first rotating shaft 7 is powered by the outer ring gear 15, a sliding rod 17 coaxially and rotatably connected with a fixed rod 16 is connected in the second rotating shaft 10 in a sliding mode, the end portion of the sliding rod 17 extends out of the second rotating shaft 10, a fixed frame 18 is fixedly connected to the sliding rod 17, the fixed frame 18 can be respectively and fixedly connected with the planet carrier 13 or the outer gear ring 15 after sliding, when the fixed rod 16 is fixedly connected with the outer gear ring 15, the fixed rod is disconnected with the planet carrier 13, at the moment, the outer gear ring 15 is fixed in the operating arm 3, the planet wheel 14 rotates around the sun wheel 12, when the fixed rod 16 is fixedly connected with the planet carrier 13, the fixed rod 16 is disconnected with the outer gear ring 15, at the moment, the planet carrier 13 cannot rotate, namely, the planet wheel 14 is fixed in position; the control arm 3 is provided with a control device for controlling the sliding of the sliding rod 17.

For moving conveniently, a plurality of universal wheels 19 are arranged below the base 1.

For better cooperation, the fixing rod 16 includes a spline shaft 20 penetrating through the first rotating shaft 7, the end of the spline shaft 20 is fixedly connected with a connecting disc 21 rotatably connected with the sliding rod 17, the fixing rod 16 and the first rotating shaft 7 synchronously rotate and can generate relative sliding due to the existence of the spline shaft 20, one end of the spline shaft 20 located in the first rotating shaft 7 is provided with a limit baffle 22, and the limit baffle 22 can prevent the fixing rod 16 from being separated from the first rotating shaft 7.

For better matching, the section of the outer gear ring 15 is U-shaped, a gap 23 is arranged between the outer gear ring 15 and the planet wheel 14, and the connecting disc 21 is positioned in the gap 23.

For better matching, a plurality of first grooves 24 are formed in one side of the outer ring gear 15 adjacent to the connecting disc 21, a first pin 25 capable of being inserted into the first grooves 24 extends from the connecting disc 21, a second pin 26 facing the connecting disc 21 extends from a rotating shaft of the planet wheel 14, a second groove 27 for inserting the second pin 26 is formed in the connecting disc 21, the connecting disc 21 slides left and right and then is fixedly connected with the outer ring gear 15 or the planet wheel 14, when the connecting disc 21 moves towards one side close to the planet wheel 14 under the action of the sliding rod 17, the second pin 26 on the planet wheel 14 is inserted into the second groove 27 in the connecting disc 21, the planet wheel 14 is fixedly connected with the connecting disc 21, the planet wheel 14 drives the connecting disc 21 to synchronously rotate, namely the planet wheel 14 drives the first rotating shaft 7 to rotate, otherwise, when the connecting disc 21 moves towards one side close to the outer ring gear 15, the outer ring gear 15 is fixedly connected with the connecting disc 21, the external gear ring 15 rotates the first shaft 7.

For better matching, a plurality of third grooves 28 are formed in one side of the outer ring gear 15 adjacent to the fixed frame 18, a plurality of third pins 29 capable of being inserted into the third grooves 28 extend from the fixed frame 18, a plurality of fourth grooves 30 are formed in one side of the planet carrier 13 adjacent to the fixed frame 18, fourth pins 31 capable of being inserted into the fourth grooves 30 extend from the planet carrier 13, the fixed frame 18 slides left and right and then is fixedly connected with the outer ring gear 15 or the planet carrier 13, when the fixed frame 18 moves towards one side close to the outer ring gear 15, the third pins 29 on the fixed frame 18 are inserted into the third grooves 28 on the outer ring gear 15, so that the fixed frame 18 fixes the outer ring gear 15, the outer ring gear 15 does not rotate any more, otherwise, when the fixed frame 18 moves towards one side close to the planet carrier 13, the fixed frame 18 fixes the planet carrier 13, and the planet carrier 13 does not rotate around the second rotating shaft 10.

For better control, the control device comprises an operating rod 32 arranged in the operating arm 3 in a sliding manner, the end part of the operating rod 32 is universally hinged with the end part of a sliding rod 17 through a connecting rod 33, the connecting rod 33 drives the sliding rod 17 to extend and retract in the second rotating shaft 10 when the operating rod 32 is slid, a fixed block 34 fixed in the operating arm 3 is sleeved on the operating rod 32, a stepped hole 35 is formed in the fixed block 34, a disc 36 capable of being inserted into the stepped hole 35 is fixed on the operating rod 32, a first spring 37 is sleeved on the operating rod 32, two ends of the first spring 37 respectively support against the disc 36 and the inner wall of the operating arm 3, the disc 36 is always pushed by the spring to a position far away from the fixed block 34, the end part of the operating rod 32 extends out of the operating arm 3, a locking mechanism for fixing the disc 36 in the fixed block 34 is arranged in the fixed block 34, the disc 36 is fixed by the locking mechanism after entering, the slide rod 17 makes the connecting disc 21 fixedly connected with the planet wheel 14 under the action of the operating rod 32, and after the locking mechanism is unlocked, the first spring 37 pushes the disc 36 out of the stepped hole 35, so that the connecting disc 21 is fixedly connected with the outer gear ring 15.

For convenience of control, the locking mechanism comprises a jaw 38 rotatably arranged in the fixed block 34, the jaw 38 is of a sector structure rotating around the center of a circle, the jaw 38 is located on one side in the fixed block 34 and connected with the side wall of the fixed block 34 through a second spring 39, a pull rope 40 connected to the jaw 38 penetrates through the second spring 39, the other end of the pull rope 40 penetrates through the fixed block 34 and extends out of the operating arm 3, due to the sector structure of the jaw 38, the jaw 38 cannot block the disc 36 when the disc 36 is pushed into the stepped hole 35, the jaw 38 is reset under the action of the second spring 39 to clamp the disc 36 after the disc 36 enters, and when the disc 36 needs to be unlocked, the pull rope 40 is pulled to rotate the jaw 38 to make the position of the disc 36 open, so that the disc 36 is separated from the.

In order to prevent the disc 36 from being damaged, a stopper 41 sleeved on the operating rod 32 is arranged in the operating arm 3, when the locking mechanism is opened, the first spring 37 pushes the disc 36 out, the stopper 41 stops the disc, when the disc 36 is located in the stepped hole 35, the planet wheel 14 is in a primary rotating speed state, and when the disc 36 abuts against the stopper 41, the planet wheel 14 is in a secondary rotating speed state.

In order to make the fixing frame 18 move better, the inner wall of the operating arm 3 is provided with a slide way 42, the fixing frame 18 is provided with a slide way 42 sliding in the slide way 42, and the slide way 42 is in accordance with the axial direction of the second rotating shaft 10, that is, the fixing frame 18 can only move along the axial direction of the second rotating shaft 10 and cannot rotate around the second rotating shaft 10.

When the invention is used, the water-saving agent is added,

the device is moved to a required position under the action of the universal wheel 19, the power supply is switched on, then the rotating speed of the motor 6 is adjusted according to the requirement of a patient, the rotating speed of the training arm 5 is changed by pushing the position of the operating rod 32, and the motor 6 is ready to be switched on for rehabilitation training.

The planetary gear 14 in the device has two stages of rotating speeds: a primary rotating speed and a secondary rotating speed, when the operating rod 32 is pulled outwards, the fixed frame 18 is fixedly connected with the outer gear ring 15, the planet wheel 14 rotates together with the first rotating shaft 7, and at the moment, the planet wheel 14 system is in a state of the primary rotating speed; when the operating rod 32 is pushed inwards, the first rotating shaft 7 and the outer gear ring 15 rotate together, the fixed frame 18 is fixedly connected with the planet carrier 13, and the planet gear 14 system is in a state of secondary rotating speed; the first-stage rotating speed is greater than the second-stage rotating speed, and the patient can select a proper rotating speed to perform rehabilitation training according to the rehabilitation condition of the patient.

The transmission ratio of the planetary gear 14 system is set in advance, and due to the large transmission ratio of the planetary gear 14 system, the rotating speed of the rotating arm 8 is very slow at the secondary rotating speed, so that the device is very suitable for patients who are in early rehabilitation training, and is more suitable for patients in middle rehabilitation training at the primary rotating speed.

In the training process, if the current rotating speed is the second-level rotating speed, the patient wants to stop training, the patient can directly take the hand off the grip 9, and the rotating speed of the rotating arm 8 is extremely slow, so the patient cannot be injured; if the rotation speed is at the first-stage rotation speed, the patient only needs to pull the pull rope 40 with feet to open the locking mechanism, the first spring 37 pushes the operating rod 32 inwards, and therefore the planetary gear train 14 is switched to the second-stage rotation speed quickly, and the operation is very convenient.

For better training, a sleeve handle can be arranged on the holding handle 9, so that the friction of the hand in the rotating process can be avoided, and the discomfort caused by the sweating of the hand in the training can be reduced.

The motor 6 drives the second rotating shaft 10 to rotate through the belt 11, has certain buffering performance, and can avoid damage caused by rigid connection and play a certain protection role in internal parts after the load on the second rotating shaft 10 is suddenly increased.

When the locking mechanism is reset, the operating rod 32 is pulled outwards to enable the disc 36 to return to the stepped hole 35 again, and the disc 36 is clamped by the locking mechanism.

The sliding rod 17 is rotatably connected with the connecting disc 21, the sliding rod 17 is fixedly connected with the fixed frame 18, the fixed frame 18 is slidably fixed on the inner wall of the operating arm 3 and cannot rotate, so that the sliding rod 17 cannot rotate, the connecting disc 21 is rotatably connected with the sliding rod 17, and the sliding rod 17 can drive the connecting disc 21 to move without affecting the rotation of the connecting disc 21.

A T-shaped groove is formed in the center of the connecting side of the connecting disc 21 and the sliding rod 17, and the end of the sliding rod 17 extends out of a T-shaped block inserted into the T-shaped groove to ensure the rotating connection between the connecting disc 21 and the sliding rod 17.

The pull string 40 itself has a long length and can be vertically placed on the ground and operated by the patient's foot to prevent the disadvantage that the hands cannot be operated during training.

Compared with the prior art, the invention has the following beneficial effects:

the mechanical speed regulation principle is more convenient and accurate compared with circuit speed regulation, after long-time use, a circuit line is easy to break down, so that the speed regulation is invalid, and the stability of the mechanical structure can be ensured;

secondly, training in a grading way, corresponding to different rehabilitation crowds, and adapting to wide groups;

thirdly, the rotating speed can be manually switched in the training process, so that the secondary damage caused by the fact that the hands of the patient leave the rotating arm 8 when the rotating speed is too high is avoided;

and fourthly, the motor 6 is driven by the belt 11, so that damage to internal devices caused by rigid transmission is avoided.

The invention has smart structure and reasonable design, can be suitable for different patient groups, can manually switch the rotating speed in the training process, and avoids secondary damage caused by the fact that the patient cannot adapt to the training intensity.

Claims

1. A conveniently controlled thoracic surgery training instrument comprises a base (1), a supporting column (2) is fixed on the base (1), an operating arm (3) is arranged on the supporting column (2), a seat (4) positioned at the end part of the operating arm (3) is arranged on the base (1), training arms (5) are arranged on two sides of the end part of the operating arm (3), a motor (6) for driving the training arms (5) to move is arranged in the operating arm (3), the training arm (5) comprises a first rotating shaft (7) which is rotationally fixed in the operating arm (3), the end part of the first rotating shaft (7) is fixedly connected with a rotating arm (8), the end part of the rotating arm (8) is provided with a handle (9), the operating arm (3) is rotationally provided with a second rotating shaft (10), the second rotating shaft (10) is connected with the first rotating shaft (7) through a planet wheel (14), and the second rotating shaft (10) is connected with the motor (6) through a belt (11); the planet wheel (14) comprises a sun wheel (12) fixedly connected to a second rotating shaft (10), the second rotating shaft (10) is rotatably connected with a planet carrier (13), the sun wheel (12) is externally meshed with a plurality of planet wheels (14) fixed on the planet carrier (13), the first rotating shaft (7) is externally rotatably connected with an outer gear ring (15) meshed with the planet wheels (14), a fixed rod (16) penetrating in the first rotating shaft (7) is arranged between the outer gear ring (15) and the planet wheels (14), the fixed rod (16) slides in the first rotating shaft (7), the fixed rod (16) can be respectively and fixedly connected with the planet wheels (14) or the outer gear ring (15) after sliding, a sliding rod (17) coaxially and rotatably connected with the fixed rod (16) is slidably connected in the second rotating shaft (10), the end part of the sliding rod (17) extends out of the second rotating shaft (10), and a fixed frame (18) is fixedly connected to the sliding rod (17), the fixed frame (18) can be respectively and fixedly connected with the planet carrier (13) or the outer gear ring (15) after sliding, and a control device for controlling the sliding rod (17) to slide is arranged in the operating arm (3); the section of the outer gear ring (15) is U-shaped, a gap (23) is formed between the outer gear ring (15) and the planet wheel (14), and the connecting disc (21) is positioned in the gap (23);

a plurality of third grooves (28) are formed in one side, adjacent to the fixed frame (18), of the outer gear ring (15), a plurality of third pins (29) capable of being inserted into the third grooves (28) extend out of the fixed frame (18), a plurality of fourth grooves (30) are formed in one side, adjacent to the fixed frame (18), of the planet carrier (13), fourth pins (31) capable of being inserted into the fourth grooves (30) extend out of the planet carrier (13), and the fixed frame (18) is fixedly connected with the outer gear ring (15) or the planet carrier (13) after sliding left and right;

the control device comprises an operating rod (32) which is arranged in an operating arm (3) in a sliding mode, the end portion of the operating rod (32) is universally hinged with the end portion of a sliding rod (17) through a connecting rod (33), a fixing block (34) fixed in the operating arm (3) is sleeved on the operating rod (32), a stepped hole (35) is formed in the fixing block (34), a disc (36) capable of being inserted into the fixing block (34) is fixed on the operating rod (32), a first spring (37) is sleeved on the operating rod (32), two ends of the first spring (37) respectively support against the disc (36) and the inner wall of the operating arm (3), the end portion of the operating rod (32) extends out of the operating arm (3), and a locking mechanism for fixing the disc (36) in the fixing block (34) is arranged in the fixing block (34);

the locking mechanism comprises a clamping jaw (38) rotatably arranged in a fixed block (34), the clamping jaw (38) is of a sector structure rotating around the circle center, the clamping jaw (38) is located on one side in the fixed block (34) and is connected with the side wall of the fixed block (34) through a second spring (39), a pull rope (40) connected to the clamping jaw (38) penetrates through the second spring (39), and the other end of the pull rope (40) penetrates through the fixed block (34) and extends out of the operating arm (3).

2. A conveniently controlled thoracic surgical training apparatus as claimed in claim 1, wherein a plurality of universal wheels (19) are provided under said base (1).

3. The conveniently controlled thoracic surgical training instrument as claimed in claim 1, wherein the fixing rod (16) comprises a spline shaft (20) inserted into the first rotating shaft (7), the end of the spline shaft (20) is fixedly connected with a connecting plate (21) rotatably connected with the sliding rod (17), and a limit stop (22) is arranged at one end of the spline shaft (20) positioned in the first rotating shaft (7).

4. The conveniently-controlled thoracic surgery training instrument as claimed in claim 1, wherein a plurality of first grooves (24) are formed in one side of the outer gear ring (15) adjacent to the connecting disc (21), first pins (25) capable of being inserted into the first grooves (24) extend out of the connecting disc (21), second pins (26) facing the connecting disc (21) extend out of a rotating shaft of the planet wheels (14), second grooves (27) for the second pins (26) to be inserted into are formed in the connecting disc (21), and the connecting disc (21) is fixedly connected with the outer gear ring (15) or the planet wheels (14) respectively after sliding left and right.

5. The conveniently controlled thoracic surgical training instrument of claim 1, wherein the operating arm (3) is provided with a stop (41) sleeved on the operating rod (32).

6. The conveniently controlled thoracic surgical training apparatus of claim 1, wherein the operating arm (3) has a slide (42) on an inner wall thereof, and the holder (18) has a slide rod (43) sliding in the slide (42).