Multi-joint automatic fixing support

Abstract

The utility model relates to a multi-joint automatic fixing support. The multi-joint automatic fixing support comprises a rack, a linkage seat sleeve, a linkage structure, a first movable pipe, a second movable pipe, a third movable pipe, a subject matter clamp structure, a traction assembly and a driving mechanism. After the operation direction and the operation position of the medical instrument are adjusted in place, the driving mechanism is started to drive the linkage mechanism to drive the traction rope structure to be pulled back and push the linkage seat sleeve to move in the direction from the bottom end to the top end at the same time until the first abutting part is pressed on the inner wall of the first joint cavity by the linkage seat sleeve; the second abutting part, the third abutting part and the third joint body abut against the inner walls of the second joint cavity, the third joint cavity and the fourth joint cavity correspondingly, so that the operation direction and the operation position of the medical instrument are automatically fixed, and it is guaranteed that the operation position and the operation direction of the medical instrument are stable in the operation or examination process; therefore, the multi-joint automatic fixing support has the advantages of being easy to operate and high in use reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, in particular to a kind of multi-joint automatic fixing support. BACKGROUND

[0002] Currently, more and more auxiliary devices are used for surgical operation, which include joint arms, for example, can be installed on the slide rail of operating table, and medical instruments are coupled to the free end of the joint arm which can move freely. For example, in laparoscopy, rigid endoscope equipped with optical system is assembled on joint arm and oriented, so that the target area to be examined or to be operated can be seen by the operating surgeon.

[0003] However, in the conventional auxiliary device, based on the limitation of operation or examination space, the joint arm is often manually structured, so when the surgeon manually adjusts the joint arm to adjust the medical instrument to the right position, the medical instrument in the conventional auxiliary device often cannot be automatically fixed in the position of the medical instrument after being oriented during the examination or operation process, and due to the small operating table or examination site or too many people during the operation or examination process, it is easy to change the position or direction of the medical instrument by touching the medical instrument, and if the surgeon cannot timely find and re-adjust the medical instrument to the right position, there is a great risk of operation. SUMMARY

[0004] Therefore, it is necessary to provide a multi-joint automatic fixing support which is simple to operate and has high reliability.

[0005] A multi-joint automatic fixing support, comprising:

[0006] A rack has opposite top end and bottom end along the first direction; the top end has a first joint cavity; the top surface and the bottom surface of the first joint cavity are respectively provided with a first rotating hole and a mounting hole;

[0007] A linkage seat sleeve is slidably arranged in the mounting hole, one end of which extends into the first joint cavity, and the other end is located outside the first joint cavity;

[0008] A linkage mechanism is linked to one end of the linkage seat sleeve located outside the first joint cavity;

[0009] The first movable tube has opposite first and second tube segments. The first tube segment is provided with a first abutting portion on the outer wall of the end thereof away from the first tube segment. The first tube segment is rotatably arranged in the first rotating hole, and the first abutting portion is located in the first joint cavity. The second tube segment is bent relative to the first tube segment, and the first tube segment extends along the first direction, and the second tube segment extends along the second direction which is at an angle to the first direction. The end of the second tube segment is formed with a second joint cavity. The second joint cavity is formed with a second rotating hole at the end thereof away from the first tube segment.

[0010] The second movable tube includes third, fourth and fifth tube segments which are connected in sequence. The third and fifth tube segments are bent relative to the fourth tube segment, and the third tube segment extends along the second direction, the fourth tube segment extends along the third direction which is at an angle to the first and second directions respectively, and the fifth tube segment extends along the first direction. The end of the third tube segment is provided with a first intermediate disc. The outer wall of the first intermediate disc has a second abutting portion. The first intermediate disc is rotatably arranged in the second rotating hole, and the second abutting portion is located in the second joint cavity. The end of the fifth tube segment is formed with a third joint cavity. The third joint cavity is formed with a third rotating hole at the end thereof away from the fourth tube segment.

[0011] The third movable tube includes sixth and seventh tube segments which are connected in sequence. The end of the sixth tube segment is provided with a second intermediate disc. The outer wall of the second intermediate disc has a third abutting portion. The second intermediate disc is rotatably arranged in the third rotating hole, and the third abutting portion is located in the third joint cavity. The seventh tube segment is bent relative to the sixth tube segment, and the sixth tube segment extends along the first direction, and the seventh tube segment extends along the fourth direction which is at an angle to the first and second directions respectively. The end of the seventh tube segment away from the sixth tube segment is formed with a fourth joint cavity.

[0012] The target object clamping structure is provided with a third joint body at one end, and the third joint body is movably mounted in the fourth joint cavity. The target object clamping structure is configured to be capable of operatively clamping or releasing a medical instrument.

[0013] The traction assembly includes a traction rope structure. The traction rope structure is sequentially arranged in the first movable tube, the second movable tube and the third movable tube, and is connected with the first movable tube, the second movable tube, the third movable tube and the third joint body respectively.

[0014] The driving mechanism is connected with the linkage mechanism at the end thereof away from the linkage seat sleeve.

[0015] The linkage mechanism is configured to simultaneously pull back the traction rope structure and push the linkage seat sleeve in a direction from the bottom end to the top end under the driving action of the driving mechanism.

[0016] The multi-joint automatic fixing support is used. The rack is fixed on a workbench such as a surgical bed, and then the medical instrument is clamped on the target clamping structure. At this time, the doctor can adjust the operation position and operation direction of the medical instrument by freely rotating one or more of the first movable pipe, the second movable pipe, the third movable pipe, and the target clamping structure, until the operation position and operation direction of the medical instrument are adjusted to the best surgical or examination position. When the operation direction and operation position of the medical instrument are adjusted in place, the driving mechanism is started to drive the linkage mechanism to operate, so as to simultaneously pull back the traction rope structure and drive the linkage seat sleeve to move in a direction from the bottom end to the top end, until the first abutting portion is pressed on the inner wall of the first joint cavity by the linkage seat sleeve, and the second abutting portion, the third abutting portion, and the third joint body are abutted on the inner walls of the second joint cavity, the third joint cavity, and the fourth joint cavity under the pulling of the traction rope structure, so as to automatically fix the operation direction and operation position of the medical instrument, avoid the operation position and operation direction of the medical instrument from being deviated due to loosening of one or more of the first movable pipe, the second movable pipe, the third movable pipe, and the target clamping structure during the surgery or examination process, and greatly reduce the risk of surgery or examination. Therefore, the multi-joint automatic fixing support has the advantages of simple operation and high use reliability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the multi-joint automatic fixing support in the preferred embodiment of the utility model;

[0018] Figure 2 It is a structure schematic view of the multi-joint automatic fixing support in the preferred embodiment of the utility model; Figure 1 It is an A-A sectional view of the multi-joint automatic fixing support shown in the figure;

[0019] Figure 3 It is a sectional view of the rack in the multi-joint automatic fixing support shown in the figure; Figure 1 It is a sectional view of the rack in the multi-joint automatic fixing support shown in the figure;

[0020] Figure 4 It is a B-B sectional view of the multi-joint automatic fixing support shown in the figure; Figure 1 It is a B-B sectional view of the multi-joint automatic fixing support shown in the figure;

[0021] Figure 5 It is a structure schematic view of the elbow male head as the first elbow joint and the third elbow joint in the multi-joint automatic fixing support shown in the figure; Figure 1 It is a structure schematic view of the elbow male head as the first elbow joint and the third elbow joint in the multi-joint automatic fixing support shown in the figure;

[0022] Figure 6 It is a C-C sectional view of the multi-joint automatic fixing support shown in the figure; Figure 1 It is a C-C sectional view of the multi-joint automatic fixing support shown in the figure;

[0023] Figure 7 Fig. 6 is a perspective view of a multi-joint automatic fixing support according to the present application; Figure 1 Fig. 7 is a perspective view of a multi-joint automatic fixing support according to the present application;

[0024] Figure 8 Fig. 8 is a perspective view of a multi-joint automatic fixing support according to the present application; Figure 1 Fig. 9 is a D-D sectional view of a multi-joint automatic fixing support according to the present application;

[0025] Figure 9 Fig. 10 is a perspective view of a multi-joint automatic fixing support according to the present application; Figure 1 Fig. 11 is a perspective view of a multi-joint automatic fixing support according to the present application;

[0026] Figure 10 Fig. 12 is a perspective view of a multi-joint automatic fixing support according to the present application; Figure 1 Fig. 13 is a perspective view of a multi-joint automatic fixing support according to the present application;

[0027] Figure 11 Fig. 14 is a perspective view of a multi-joint automatic fixing support according to the present application; Figure 1 Fig. 15 is a perspective view of a multi-joint automatic fixing support according to the present application.

[0028] Label explanation: 100, multi-joint automatic fixing support; 110, rack; 111, top end; 112, bottom end; 113, first joint cavity; 114, first rotating hole; 115, mounting hole; 120, linkage seat cover; 121, linkage part; 122, sliding part; 123, fixed part; 124, rotating mounting point; 130, linkage mechanism; 131, mounting seat; 1311, rotating connection point; 132, first connecting rod; 133, second connecting rod; 134, third connecting rod; 140, first movable pipe; 141, first pipe section; 142, second pipe section; 1421, second joint cavity; 1422, second rotating hole; 143, first abutting part; 144, first straight pipe; 145, first elbow joint; 150, second movable pipe; 151, third pipe section; 152, fourth pipe section; 153, fifth pipe section; 1531, third joint cavity; 1532, third rotating hole; 154, first intermediate disc; 1541, second abutting part; 1542, first fixed cavity; 1543, first guide groove; 155, second elbow joint; 156, second straight pipe; 157, third elbow joint; 160, third movable pipe; 161, sixth pipe section; 162, seventh pipe section; 1621, fourth joint cavity; 163, second intermediate disc; 1631, third abutting part; 1632, second fixed cavity; 1633, second guide groove; 164, fourth elbow joint; 165, third straight pipe; 166, rotating seat; 1661, first rope passing hole; 170, target object clamping structure; 180, traction assembly; 181, traction rope structure; 1811, first traction rope; 1812, first stroke compensation cylinder; 1813, first compensation elastic member; 1814, second traction rope; 1815, second stroke compensation cylinder; 1816, first compensation elastic member; 1817, third traction rope; 1818, first limit buckle; 1819, second limit buckle; 182, first fixed buckle; 1821, first pressing part; 1822, first guide part; 183, second fixed buckle; 1831, second pressing part; 1832, second guide part; 184, fourth fixed buckle; 185, traction force receiving frame; 190, driving mechanism; 201, third joint body; 2011, spherical body; 2012, second rope passing hole; 2013, limit groove; 202, elbow male head; 2021, first elbow head; 2022, baffle; 2023, cylinder structure; 203, elbow female head; 2031, second elbow head; 2032, gland structure; 20321, through hole; 2033, connecting part; 204, pneumatic switch; 205, fixing mechanism; 2051, clamping part; 10, first direction; 20, second direction; 30, third direction; 40, fourth direction. DETAILED DESCRIPTION

[0029] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show the preferred embodiments of the utility model. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The term used in the specification of the utility model herein is only for the purpose of describing specific embodiments and is not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] When describing the positional relationship, unless otherwise specified, when an element is referred to as "on" another element, it can be directly on the other element or there can be an intermediate element. It can also be understood that when an element is referred to as "between" two elements, it can be the only one between the two elements, or there can be one or more intermediate elements.

[0032] In the case of using "including", "having", and "containing" described herein, unless the explicit limiting term is used, such as "only", "consisting of", etc., another component can be added. Unless otherwise mentioned, the singular form of the term can include the plural form and cannot be understood as one in number.

[0033] In addition, the drawings are not drawn to scale 1:1, and the relative sizes of the elements are only drawn by example in the drawings, not necessarily in true proportion.

[0034] Please refer to Figure 1 And Figure 2 The multi-joint automatic fixing support 100 in the preferred embodiment of the utility model includes a rack 110, a linkage seat cover 120, a linkage mechanism 130, a first movable pipe 140, a second movable pipe 150, a third movable pipe 160, a target object clamping structure 170, a traction assembly 180 and a driving mechanism 190.

[0035] Please refer to Figure 3 The rack 110 has opposite top end 111 and bottom end 112 along the first direction 10. The top end 111 has a first joint cavity 113. The top surface and the bottom surface of the first joint cavity 113 are respectively provided with a first rotating hole 114 and a mounting hole 115. Among them, the top end 111 and the bottom end 112 are the upper end and the lower end of the rack 110 respectively.

[0036] The linkage seat sleeve 120 is slidably arranged in the mounting hole 115, one end of which extends into the first joint cavity 113, and the other end of which is located outside the first joint cavity 113.

[0037] The surface end of the linkage mechanism 130 is linked with the end of the linkage seat sleeve 120 located outside the first joint cavity 113. The linkage mechanism 130 can be a linkage mechanism, or other structures capable of linkage.

[0038] Please refer to Figure 4 and Figure 5 , the first movable pipe 140 has opposite first and second pipe sections 141 and 142. The first pipe section 141 is provided with a first abutting portion 143 on the outer wall of the end thereof away from the first pipe section 141. The first pipe section 141 is rotatably arranged in the first rotating hole 114, and the first abutting portion 143 is located in the first joint cavity 113. Specifically, the first abutting portion 143 is located above the linkage seat sleeve 120; the second pipe section 142 is bent relative to the first pipe section 141, and the first pipe section 141 extends along the first direction 10, and the second pipe section 142 extends along the second direction 20 which is at an angle to the first direction 10. The end of the second pipe section 142 is formed with a second joint cavity 1421. The second joint cavity 1421 is formed with a second rotating hole 1422 at the end thereof away from the first pipe section 141.

[0039] Please refer to Figure 6 and Figure 7 , the second movable pipe 150 includes third, fourth and fifth pipe sections 151, 152 and 153 which are connected in sequence. The third and fifth pipe sections 151 and 153 are bent relative to the fourth pipe section 152, and the third pipe section 151 extends along the second direction 20, the fourth pipe section 152 extends along the third direction 30 which is at an angle to the first and second directions 10 and 20, and the fifth pipe section 153 extends along the first direction 10. The end of the third pipe section 151 is provided with a first intermediate disc 154. The outer wall of the first intermediate disc 154 has a second abutting portion 1541. The first intermediate disc 154 is rotatably arranged in the second rotating hole 1422, and the second abutting portion 1541 is located in the second joint cavity 1421. Specifically, the second abutting portion 1541 is flush with the end face of the end of the first intermediate disc 154 away from the third pipe section 151. Of course, in other embodiments, the second abutting portion 1541 can also protrude from the end face of the end of the first intermediate disc 154 away from the third pipe section 151. The end of the fifth pipe section 153 is formed with a third joint cavity 1531. The third joint cavity 1531 is formed with a third rotating hole 1532 at the end thereof away from the fourth pipe section 152.

[0040] Please refer to Figure 8The third movable tube 160 comprises a sixth tube segment 161 and a seventh tube segment 162 connected in sequence. The sixth tube segment 161 is provided with a second intermediate disc 163 at an end thereof. The outer wall of the second intermediate disc 163 is provided with a third abutting portion 1631. The second intermediate disc 163 is rotatably arranged in the third rotation hole 1532, and the third abutting portion 1631 is located in the third joint cavity 1531. The seventh tube segment 162 is bent relative to the sixth tube segment 161, and the sixth tube segment 161 extends along the first direction 10, and the seventh tube segment 162 extends along a fourth direction 40 which is arranged at an angle with respect to the first direction 10 and the second direction 20 respectively. An end of the seventh tube segment 162 away from the sixth tube segment 161 is formed with a fourth joint cavity 1621.

[0041] The first direction 10 and the second direction 20 can be perpendicular or inclined, the third direction 30 can be perpendicular or inclined with respect to the first direction 10 and the second direction 20 respectively, and the fourth direction 40 can be perpendicular or inclined with respect to the first direction 10 and the second direction 20 respectively. In the embodiment, the first direction 10 and the second direction 20 are perpendicular, the third direction 30 is perpendicular with respect to the first direction 10 and the second direction 20 respectively, and the fourth direction 40 is perpendicular with respect to the first direction 10 and the second direction 20 respectively. Since the first rotation hole 114 and the mounting hole 115 are arranged on the top surface and the bottom surface of the first joint cavity 113 respectively, the first tube segment 141 is rotatably arranged in the first rotation hole 114 with an axis parallel to the first direction 10 as a rotation shaft, the first intermediate disc 154 is rotatably arranged in the second rotation hole 1422 with an axis parallel to the second direction 20 as a rotation shaft, and the second intermediate disc 163 is rotatably arranged in the third rotation hole 1532 with an axis parallel to the first direction 10 as a rotation shaft.

[0042] Please refer to Figure 9 One end of the target clamping structure 170 is provided with a third joint body 201 movably mounted in the fourth joint cavity 1621. The target clamping structure 170 is configured to be capable of clamping or releasing a medical instrument.

[0043] The traction assembly 180 comprises a traction rope structure 181. The traction rope structure 181 is arranged in the first movable tube 140, the second movable tube 150 and the third movable tube 160 in sequence, and is linked with the first movable tube 140, the second movable tube 150, the third movable tube 160 and the third joint body 201 respectively.

[0044] The driving mechanism 190 is connected to an end of the linkage mechanism 130 away from the linkage seat sleeve 120. The driving mechanism 190 can be a driving cylinder, a driving motor or the like.

[0045] The linkage mechanism 130 is configured to be capable of simultaneously pulling back the traction rope structure 181 and pushing the linkage seat cover 120 in the direction from the bottom end 112 to the top end 111 under the driving action of the driving mechanism 190.

[0046] For the convenience of understanding, the use process of the multi-joint automatic fixing support 100 is simply described as follows:

[0047] (1) Fix the rack 110 on a workbench such as a surgical bed to realize the fixation of the multi-joint automatic fixing support 100;

[0048] (2) Clamping the medical instrument on the target clamping structure 170;

[0049] (3) At this time, the driving mechanism 190 is in the closed state, and the linkage mechanism 130 and the traction rope structure 181 are in the relaxed state. At this time, the doctor can adjust the operation position and operation direction of the medical instrument by freely rotating one or more of the first movable tube 140, the second movable tube 150, the third movable tube 160 and the target clamping structure 170 until the medical instrument reaches the optimal operation or examination position;

[0050] (4) Start the driving mechanism 190, and the linkage mechanism 130 operates under the driving action of the driving mechanism 190 to simultaneously pull back the traction rope structure 181 and push the linkage seat cover 120 to move in the direction from the bottom end 112 to the top end 111 until the first abutting part 143 is pressed tightly on the inner wall of the first joint cavity 113 by the linkage seat cover 120, and the second abutting part 1541, the third abutting part 1631 and the fourth abutting part 1621 are respectively abutted on the inner walls of the second joint cavity 1421, the third joint cavity 1531 and the fourth joint cavity 1621 under the pulling force of the traction rope structure 181 to ensure that the first movable tube 140, the second movable tube 150, the third movable tube 160 and the target clamping structure 170 cannot continue to rotate to automatically fix the operation direction and operation position of the medical instrument.

[0051] Therefore, the multi-joint automatic fixing support 100 can freely adjust the operation position and operation direction of the medical instrument before operation or examination, and automatically fix the operation position and operation direction of the medical instrument during the operation or examination after adjustment, which avoids the deviation of the operation position and operation direction of the medical instrument due to the loosening of one or more of the first movable tube 140, the second movable tube 150, the third movable tube 160 and the target clamping structure 170 during the operation or examination, greatly reduces the risk of operation or examination, and therefore the multi-joint automatic fixing support 100 has the advantages of simple operation and high use reliability.

[0052] In some embodiments, the first intermediate disc 154 has a first fixed cavity 1542 inside. The second intermediate disc 163 has a second fixed cavity 1632 inside. The traction assembly 180 further comprises a first fixed buckle 182 and a second fixed buckle 183 which are spaced apart and fixed on the traction rope structure 181. The first fixed buckle 182 and the second fixed buckle 183 are respectively located in the first fixed cavity 1542 and the second fixed cavity 1632.

[0053] Under the driving action of the driving mechanism 190, the linkage mechanism 130 drives the traction rope structure 181 to be pulled back until the first fixed buckle 182 and the second fixed buckle 183 respectively press the end of the first intermediate disc 154 provided with the first abutting part 143 on the inner wall of the first joint cavity 113 and press the end of the second intermediate disc 163 provided with the second abutting part 1541 on the inner wall of the second joint cavity 1421.

[0054] In this way, when the traction rope structure 181 is pulled back, the first fixed buckle 182 and the second fixed buckle 183 are simultaneously moved away from the object clamp structure 170 until the first fixed buckle 182 and the second fixed buckle 183 abut on the inner walls of the first fixed cavity 1542 and the second fixed cavity 1632, respectively, so as to press the second abutting part 1541 and the third abutting part 1631 on the inner walls of the second joint cavity 1421 and the third joint cavity 1531, respectively, to achieve the fixation of the joint between the first movable tube 140 and the second movable tube 150 and the automatic fixation of the joint between the second movable tube 150 and the third movable tube 160.

[0055] Of course, in other embodiments, annular grooves can also be formed on the inner walls of the second movable tube 150 and the third movable tube 160, respectively, and two protruding structures are provided on the traction rope structure 181, which are slidably clamped into the two annular grooves along the extension directions of the second movable tube 150 and the third movable tube 160, respectively, to achieve the linkage between the traction rope structure 181 and the second movable tube 150 and the third movable tube 160. Other connection structures can also be used to achieve linkage, as long as they can provide an action force away from the object clamp structure 170 for the second movable tube 150 and the third movable tube 160 when the traction rope structure 181 is pulled back.

[0056] Further, in some embodiments, the first fixed cavity 1542 is formed with a first guide slot 1543 at a position away from one end of the first movable tube 140. The first fixed buckle 182 includes a first pressing portion 1821 and a first guide portion 1822 arranged at one end of the first pressing portion 1821. The traction rope structure 181 passes through the first pressing portion 1821 and the first guide portion 1822 in sequence and is fixedly connected with the first guide portion 1822. The first guide portion 1822 away from one end of the first pressing portion 143 is slidably arranged in the first guide slot 1543. In the diameter direction of the third tube segment 151, the size of the first pressing portion 1821 is greater than the size of the first guide slot 1543.

[0057] The second fixed cavity 1632 is formed with a second guide slot 1633 at a position away from one end of the second movable tube 150. The second fixed buckle 183 includes a second pressing portion 1831 and a second guide portion 1832 arranged at two ends of the second pressing portion 1831. The traction rope structure 181 passes through the second pressing portion 1831 and the second guide portion 1832 in sequence and is fixedly connected with the second guide portion 1832. The second guide portion 1832 away from one end of the second pressing portion 1541 is slidably arranged in the second guide slot 1633. In the diameter direction of the sixth tube segment 161, the size of the second pressing portion 1831 is greater than the size of the second guide slot 1633.

[0058] In this way, the first guide slot 1543 and the second guide slot 1633 respectively guide the moving direction of the first fixed buckle 182 and the second fixed buckle 183, so as to ensure that the first fixed buckle 182 and the second fixed buckle 183 can be normally pressed on the inner wall of the first fixed cavity 1542 and the second fixed cavity 1632 respectively under the pulling action of the traction rope structure 181, thereby improving the reliability of the multi-joint automatic fixing support 100 in the fixed state, and ensuring that the traction rope structure 181 is more stable when pulled back, thereby improving the use stability of the multi-joint automatic fixing support 100.

[0059] Please refer again to Figure 6 and Figure 8In some embodiments, the traction rope structure 181 comprises a first traction rope 1811, a hollow first stroke compensation cylinder 1812, a first compensation elastic member 1813, a second traction rope 1814, a hollow second stroke compensation cylinder 1815, a second compensation elastic member 1816, and a third traction rope. The first stroke compensation cylinder 1812 is provided with a first rope passing hole (not labeled in the figure) at one end. The second stroke compensation cylinder 1815 is provided with a second rope passing hole (not labeled in the figure) at one end. The first stroke compensation cylinder 1812 and the second stroke compensation cylinder 1815 are slidably arranged in the fourth pipe segment 152 and the seventh pipe segment 162, respectively. The first traction rope 1811 is movably arranged in the first pipe segment 141, the second pipe segment 142, the third pipe segment 151, and the fourth pipe segment 152 in sequence, one end of which is connected with the linkage mechanism 130 through the linkage seat sleeve 120, and the other end of which is slidably arranged in the first rope passing hole and extends into the first stroke compensation cylinder 1812. The second traction rope 1814 is movably arranged in the fourth pipe segment 152, the fifth pipe segment 153, the sixth pipe segment 161, and the seventh pipe segment 162 in sequence, one end of which is fixedly connected with the first stroke compensation cylinder 1812 away from the first rope passing hole, and the other end of which is slidably arranged in the second rope passing hole and extends into the second stroke compensation cylinder 1815. The third traction rope is fixedly connected with the second stroke compensation cylinder 1815 away from the second rope passing hole at one end, and connected with the third joint body 201 at the other end.

[0060] When the traction rope structure 181 is pulled back, the first traction rope 1811 is first pulled back to press the first intermediate disc 154 against the inner wall of the second joint cavity 1421, while overcoming the elastic force of the first compensation elastic member 1813 to pull the first stroke compensation cylinder 1812 and the second traction rope 1814 in sequence to press the second intermediate disc 163 against the inner wall of the third joint cavity 1531, and the second traction rope 1814 overcomes the elastic force of the second compensation elastic member 1816 to pull the second stroke compensation cylinder 1815 and the third traction rope in sequence to press the third joint body 201 against the inner wall of the fourth joint cavity 1621.

[0061] In this way, the first compensation elastic member 1813 and the first stroke compensation cylinder 1812 constitute a stroke compensation structure for compensating the stroke between the first traction rope 1811 and the second traction rope 1814, and the second compensation elastic member 1816 and the second stroke compensation cylinder 1815 constitute a stroke compensation structure for compensating the stroke between the second traction rope 1814 and the third traction rope, so as to ensure that each joint can be uniformly stressed when stressed, and to ensure that each joint has a good fixing effect, thereby further improving the use reliability of the multi-joint automatic fixing support 100.

[0062] Specifically, the first compensation elastic member 1813 and the second compensation elastic member 1816 are both compression springs. One end of the first traction rope 1811 located in the first stroke compensation cylinder 1812 is fixed with a first limiting buckle 1818. The first compensation elastic member 1813 is sleeved on the first traction rope 1811 and clamped between the first limiting buckle and the inner wall of the first stroke compensation cylinder 1812 at the end provided with the rope hole. One end of the second traction rope 1814 located in the second stroke compensation cylinder 1815 is fixed with a second limiting buckle 1819. The second compensation elastic member 1816 is sleeved on the second traction rope 1814 and clamped between the second limiting buckle 1819 and the inner wall of the second stroke compensation cylinder 1815 at the end provided with the second rope hole.

[0063] Please refer to Figure 9 In some embodiments, the linkage seat sleeve 120 comprises a linkage portion 121, a sliding portion 122 and a fixed portion 123 connected in sequence. In the diameter direction of the mounting hole 115, the size of the linkage portion 121 and the size of the abutting portion are both greater than the size of the sliding portion 122. The sliding portion 122 is slidably arranged in the mounting hole 115. The fixed portion 123 is located in the first joint cavity 113 and can abut or separate from the first abutting portion 143.

[0064] The linkage seat sleeve 120 is provided with the linkage portion 121, the sliding portion 122 and the fixed portion 123. The linkage portion 121 and the fixed portion 123 respectively limit the two limit positions of the linkage seat sleeve 120 sliding in the mounting hole 115, so as to further improve the use reliability of the multi-joint automatic fixing support 100.

[0065] In some embodiments, the first movable pipe 140 comprises a first straight pipe 144 as a previous part of the first pipe segment 141 and a first elbow joint 145 as a latter part of the first pipe segment 141 and the second pipe segment 142. The second movable pipe 150 comprises a second elbow joint 155 as a front end part of the third pipe segment 151 and the fourth pipe segment 152, a second straight pipe 156 as a middle part of the fourth pipe segment 152 and a third elbow joint 157 as a rear end part of the fourth pipe segment 152 and the fifth pipe segment 153. The third movable pipe 160 comprises a fourth elbow joint 164 as a previous part of the sixth pipe segment 161 and the seventh pipe segment 162 and a third straight pipe 165 as a latter part of the seventh pipe segment 162.

[0066] Please refer to Figure 5, the first elbow joint 145 and the third elbow joint 157 are both elbow male heads 202. The elbow male head 202 comprises a first elbow head 2021 and a ring-shaped baffle 2022. One end of the first elbow head 2021 is fixedly connected with one end of the first straight pipe 144 or the second straight pipe 156, and the outer wall of the other end is provided with a cylindrical structure 2023 in the circumferential direction. The baffle 2022 is fixedly connected to the inner wall of the cylindrical structure 2023 and forms the second joint cavity 1421 or the third joint cavity 1531 with the inner wall of the cylindrical structure 2023. The inner hole of the baffle 2022 serves as the second rotating hole 1422 or the third rotating hole 1532.

[0067] Please refer again to Figure 7 , the second elbow joint 155 and the fourth elbow joint 164 are both elbow female heads 203. The elbow female head 203 comprises a second elbow head 2031 and a gland structure 2032. One end of the second elbow head 2031 is fixedly connected with one end of the second straight pipe 156 or the third straight pipe 165, and the outer wall of the other end is provided with a connecting portion 2033 in the circumferential direction. The connecting portion 2033 and the second elbow head 2031 can be integrally formed or fixedly connected by welding. The gland structure 2032 is a hollow structure with an open end, and the end of the gland structure 2032 with the opening is fixedly connected with the connecting portion 2033 to form the first intermediate disc 154 or the second intermediate disc 163. The end portion of the gland structure 2032 away from the connecting end is provided with a through hole 20321.

[0068] The first movable pipe 140 is divided into two parts of the first straight pipe 144 and the first elbow joint 145, the second movable pipe 150 is divided into three parts of the second elbow joint 155, the second straight pipe 156 and the third elbow joint 157, the third movable pipe 160 is divided into two parts of the fourth elbow joint 164 and the third straight pipe 165, and the first elbow joint 145 and the third elbow joint 157 are arranged as the same structure of the elbow male head 202, and the second elbow joint 155 and the fourth elbow joint are arranged as the same structure of the elbow female head 203, so as to simplify the machining process of the first movable pipe 140, the second movable pipe 150 and the third movable pipe 160, and reduce the machining difficulty and cost of the multi-joint automatic fixing support 100.

[0069] The inner diameters of the first elbow head 2021 and the second elbow head 2031 are smaller than the inner diameters of the first straight pipe 144, the second straight pipe 156 and the third straight pipe 165. In this way, the first elbow head 2021 and the second elbow head 2031 guide the traction rope, so as to ensure that the traction rope structure 181 is smoothly and uniformly pulled back or pushed out at the first elbow joint 145, the second elbow joint 155, the third elbow joint 157 and the fourth elbow joint 164, and the stress uniformity of each joint is improved. Therefore, the inner diameters of the first elbow head 2021 and the second elbow head 2031 are smaller than the inner diameters of the first straight pipe 144, the second straight pipe 156 and the third straight pipe 165, so as to ensure that the traction rope structure 181 can smoothly and accurately slide at each bend, so as to ensure that each joint has a good fixing effect, and the use reliability of the multi-joint automatic fixing support 100 is further improved.

[0070] Of course, in other embodiments, the first pipe section 141 and the second pipe section 142 are integrally formed structures formed by bending an entire pipe, the third pipe section 151, the fourth pipe section 152 and the fifth pipe section 153 are integrally formed structures formed by bending an entire pipe, and the sixth pipe section 161 and the seventh pipe section 162 are integrally formed structures formed by bending an entire pipe.

[0071] Please refer to Figure 10 and Figure 11 In some embodiments, the end of the seventh pipe section 162 away from the sixth pipe section 161 is fixed with a rotating seat 166. The rotating seat 166 is provided with a spherical groove as a fourth joint cavity 1621. The inner wall of the spherical groove is provided with a first rope passing hole 1661 penetrating through the rotating seat 166. The third joint body 201 is provided with a spherical body 2011. The third joint body 201 is provided with a second rope passing hole 2012. The spherical body 2011 is rotationally arranged in the spherical groove, and the first rope passing hole 1661 and the second rope passing hole 2012 are at least partially aligned. The diameter of the spherical body 2011 is greater than the slot diameter of the spherical groove. One end of the traction rope structure 181 is sequentially arranged in the first rope passing hole 1661 and the second rope passing hole 2012, and is linked with the third joint body 201.

[0072] The third joint 201 and the rotating seat 166 together form a universal joint structure. During use, the spherical body 2011 can rotate in any direction within the spherical groove, thereby providing the target clamping structure 170 with the desired degree of rotational freedom. Because the diameter of the spherical body 2011 is larger than the diameter of the notch of the spherical groove, when the traction rope structure 181 is in a relaxed state, the spherical body 2011 and the inner wall of the spherical groove can be loose, facilitating the free rotation of the spherical body 2011 within the spherical groove. When the traction rope structure 181 is in a tightened state, the spherical body 2011 abuts against the inner wall of the spherical groove, and the friction between the two restricts relative movement. Therefore, the configuration of the above-mentioned universal joint structure makes the operating direction adjustment of the target clamping structure 170 more flexible and diverse.

[0073] Furthermore, in some embodiments, a retaining groove 2013 is defined at the end of the third joint 201, distal from the spherical body 2011, and communicates with the second rope threading hole. The traction assembly 180 also includes a third fixing buckle. The third fixing buckle is disposed within the retaining groove 2013 and is fixedly connected to the traction rope structure 181. When the traction rope structure 181 is pulled back or pushed outward, the third fixing buckle abuts or separates from the inner wall of the retaining groove 2013.

[0074] In this way, when processing the multi-joint automatic fixing bracket 100, one end of the traction rope structure 181 is passed through the first rope threading hole and the second rope threading hole in sequence and extended into the limiting groove 2013, and then fixedly connected with the third fixing buckle to realize the linkage between the traction rope structure 181 and the third joint body 201, which is convenient and simple to install.

[0075] Please refer again Figure 2 and Figure 9 In some embodiments, the end of the linkage seat cover 120 located outside the first joint cavity 113 has two rotation installation points 124 spaced apart. Specifically, when the linkage seat cover 120 includes a linkage portion 121, a sliding portion 122 and a fixing portion 123, the two rotation installation points 124 are provided on the linkage portion 121.

[0076] The linkage mechanism 130 comprises a mounting base 131, two first connecting rods 132, two second connecting rods 133 and two third connecting rods 134. One end of the mounting base 131 is connected with the output end of the driving mechanism 190, and the other end has a rotating connection point 1311. One end of each of the two first connecting rods 132 is rotatably connected with the rotating connection point 1311, and the other end is rotatably connected with one end of each of the two second connecting rods 133. The other end of each of the two second connecting rods 133 is rotatably connected with one of the two rotating mounting points 124. One end of each of the two third connecting rods 134 is rotatably connected, and the other end is rotatably connected with the middle part of each of the two second connecting rods 133. Specifically, the two third connecting rods 134 are located between the two second connecting rods 133, and the rotating connection of the two third connecting rods 134 is located below the rotating connection of the third connecting rod 134 and the second connecting rod 133, i.e., the two third connecting rods 134 form a V-shaped connecting rod structure with an opening facing the linkage sleeve 120.

[0077] The traction assembly 180 further comprises a traction force receiving frame 185. One end of the traction force receiving frame 185 is slidably arranged in the linkage sleeve 120, and the other end is rotatably connected with the connection of the two third connecting rods 134.

[0078] In this way, the linkage mechanism 130 is a connecting rod mechanism composed of the mounting base 131, the two first connecting rods 132, the two second connecting rods 133 and the two third connecting rods 134. In use, when the driving mechanism 190 is started and drives the mounting base 131 to move from the top end 111 to the bottom end 112, the mounting base 131 pulls one end of the two first connecting rods 132 to move downward, at this time, the included angle between the two first connecting rods 132 becomes smaller, and the included angle between the two second connecting rods 133 also becomes smaller, at this time, the two second connecting rods 133 provide a pushing force to the linkage sleeve 120 with the bottom end 112 pointing to the bottom end 112, and at the same time, the included angle between the two third connecting rods 134 also becomes smaller with the rotation of the two second connecting rods 133, at this time, the rotating connection between the two third connecting rods 134 moves from the top end 111 to the bottom end 112 to pull the traction rope structure 181 back through the traction force receiving frame 185.

[0079] Please refer again to Figure 1 and Figure 8In some embodiments, the driving mechanism 190 is a driving cylinder. A pneumatic switch 204 is further arranged between the object clamping structure 170 and the third joint body 201. The pneumatic switch 204 is used to control the opening and closing of the driving cylinder. In this way, the pneumatic switch 204 is arranged at the object clamping structure 170, so that after the operating position and operating direction of the object clamping structure 170 are adjusted to the optimal operating or examination position, the doctor can immediately control the opening of the driving cylinder by operating the pneumatic switch 204, and at this time, only one doctor is needed to complete the adjustment of the operating direction and operating position of the medical instrument, and the automatic fixing of the operating position and operating direction of the medical instrument after the adjustment, thereby further improving the operation convenience of the multi-joint automatic fixing support 100.

[0080] In some embodiments, the multi-joint automatic fixing support 100 further comprises a fixing mechanism 205 having a clamping portion 2051. The fixing mechanism 205 is mounted on the rack 110 and is configured to be capable of adjusting the size of the clamping portion 2051. In this embodiment, the fixing mechanism 205 is a clamping structure, that is, the size of the clamping portion 2051 is adjusted by adjusting the distance between the clamping members. Of course, in other embodiments, the fixing mechanism 205 can also be a screwing structure, that is, the size of the clamping portion 2051 is adjusted by adjusting the distance between the screwing members.

[0081] In this way, in actual application, the size of the clamping portion 2051 is adjusted, and the fixing mechanism 205 is fixed on or removed from the operating table such as a surgical bed, so as to realize the fixing and dismounting of the multi-joint automatic fixing support 100 on the operating table such as a surgical bed. The fixing of the multi-joint automatic fixing support 100 on the operating table such as a surgical bed is realized by adjusting the size of the clamping portion 2051 manually, so that the use of the multi-joint automatic fixing support 100 is more convenient.

[0082] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0083] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A multi-joint automatic fixing bracket, characterized in that: include: A frame having a top end and a bottom end opposite to each other along a first direction; The top end has a first joint cavity; A first rotation hole and a mounting hole are respectively formed on the top surface and the bottom surface of the first joint cavity; A linkage seat cover is slidably arranged in the mounting hole, with one end extending into the first joint cavity and the other end located outside the first joint cavity; A linkage mechanism, one end of which is linked to an end of the linkage seat sleeve located outside the first joint cavity; The first movable tube comprises a first tube section and a second tube section facing each other; a first abutting portion is provided on an outer wall of the first tube section away from one end of the first tube section; the first tube section is rotatably inserted into the first rotation hole, and the first abutting portion is located in the first joint cavity; The second tube segment is bent relative to the first tube segment, and the first tube segment is extended along the first direction. The second tube segment extends along a second direction that is angled with the first direction. A second joint cavity is formed at an end of the second tube segment. A second rotation hole is formed at an end of the second joint cavity away from the first tube segment. The second movable tube includes a third tube segment, a fourth tube segment, and a fifth tube segment connected in sequence; the third tube segment and the fifth tube segment are both bent relative to the fourth tube segment, so that the third tube segment extends along the second direction, the fourth tube segment extends along a third direction set at an angle to the first direction and the second direction, and the fifth tube segment extends along the first direction; a first intermediate disk is provided at the end of the third tube segment; the outer wall of the first intermediate disk has a second abutment portion; the first intermediate disk is rotatably inserted into the second rotation hole, and the second abutment portion is located in the second joint cavity; a third joint cavity is formed at the end of the fifth tube segment; a third rotation hole is formed at the end of the third joint cavity away from the fourth tube segment; The third movable tube includes a sixth tube segment and a seventh tube segment connected in sequence; a second intermediate disk is provided at the end of the sixth tube segment; an outer wall of the second intermediate disk has a third abutment portion; the second intermediate disk is rotatably inserted into the third rotation hole, and the third abutment portion is located within the third joint cavity; the seventh tube segment is bent relative to the sixth tube segment, and the sixth tube segment extends along the first direction, and the seventh tube segment extends along a fourth direction set at an angle to the first direction and the second direction respectively; a fourth joint cavity is formed at an end of the seventh tube segment away from the sixth tube segment; A target clamp structure, having a third joint body provided at one end, the third joint body being movably mounted in the fourth joint cavity; the target clamp structure being configured to operably clamp or release a medical device; The traction assembly includes a traction rope structure; the traction rope structure is sequentially passed through the first movable tube, the second movable tube, and the third movable tube, and is respectively linked with the first movable tube, the second movable tube, the third movable tube, and the third joint body; a driving mechanism connected to an end of the linkage mechanism away from the linkage seat sleeve; The linkage mechanism is constructed so as to be able to simultaneously pull back the traction rope structure and push the linkage seat cover in a direction from the bottom end to the top end under the driving action of the driving mechanism.

2. The multi-joint automatic fixation bracket according to claim 1, characterized in that: The first intermediate disk has a first fixing cavity inside; the second intermediate disk has a second fixing cavity inside; the traction assembly further includes a first fixing buckle and a second fixing buckle fixed to the traction rope structure at intervals; the first fixing buckle and the second fixing buckle are respectively located in the first fixing cavity and the second fixing cavity; The linkage mechanism drives the traction rope structure to be pulled back under the driving action of the driving mechanism until the first fixing buckle and the second fixing buckle respectively press the end of the first intermediate disk with the first supporting portion against the inner wall of the first joint cavity and press the end of the second intermediate disk with the second supporting portion against the inner wall of the second joint cavity.

3. The multi-joint automatic fixing bracket according to claim 2, characterized in that: A first guide groove is formed in the first fixing cavity at a position away from one end of the first movable tube; the first fixing buckle includes a first pressing portion and a first guide portion provided at one end of the first pressing portion; the traction rope structure passes through the first pressing portion and the first guide portion in sequence and is fixedly connected to the first guide portion; the end of the first guide portion away from the first abutting portion is slidably disposed in the first guide groove; in the diameter direction of the third tube segment, the size of the first pressing portion is larger than the size of the first guide groove; A second guide groove is formed in the second fixed cavity at a position away from one end of the second movable tube; the second fixing buckle includes a second pressing portion and second guide portions arranged at both ends of the second pressing portion; the traction rope structure passes through the second pressing portion and the second guide portion in sequence and is fixedly connected to the second guide portion; the end of the second guide portion away from the second abutting portion can be slidably inserted into the second guide groove; in the diameter direction of the sixth pipe segment, the size of the second pressing portion is larger than the size of the second guide groove.

4. The multi-joint automatic fixation bracket according to claim 1, characterized in that: The traction rope structure includes a first traction rope, a hollow first stroke compensation cylinder, a first compensation elastic member, a second traction rope, a hollow second stroke compensation cylinder, a second compensation elastic member and a third traction rope; a first rope threading hole is opened at one end of the first stroke compensation cylinder; a second rope threading hole is opened at one end of the second stroke compensation cylinder; the first stroke compensation cylinder and the second stroke compensation cylinder are slidably inserted into the fourth pipe section and the seventh pipe section respectively; the first traction rope is movably inserted into the first pipe section, the second pipe section, the third pipe section and the fourth pipe section in sequence, and one end passes through the The linkage seat sleeve is connected to the linkage mechanism, and the other end can be slidably passed through the first rope threading hole and extended into the first stroke compensation cylinder; the second traction rope can be movably passed through the fourth pipe section, the fifth pipe section, the sixth pipe section and the seventh pipe section in sequence, one end is fixedly connected to the end of the first stroke compensation cylinder away from the first rope threading hole, and the other end can be slidably passed through the second rope threading hole and extended into the second stroke compensation cylinder; one end of the third traction rope is fixedly connected to the end of the second stroke compensation cylinder away from the second rope threading hole, and the other end passes through the third joint body for connection.

5. The multi-joint automatic fixation bracket according to claim 1, characterized in that: The linkage seat cover includes a linkage part, a sliding part and a fixed part connected in sequence; in the diameter direction of the mounting hole, the size of the linkage part and the size of the supporting part are both larger than the size of the sliding part; the sliding part can be slidably inserted into the mounting hole; the fixed part is located in the first joint cavity and can be supported or separated from the first supporting part.

6. The multi-joint automatic fixation bracket according to claim 1, characterized in that: The first movable pipe includes a first straight pipe as the front portion of the first pipe segment and a first elbow joint as the rear portion of the first pipe segment and the second pipe segment; the second movable pipe includes a second elbow joint as the third pipe segment and the front portion of the fourth pipe segment, a second straight pipe as the middle portion of the fourth pipe segment, and a third elbow joint as the rear portion of the fourth pipe segment and the fifth pipe segment; the third movable pipe includes a fourth elbow joint as the sixth pipe segment and the front portion of the seventh pipe segment, and a third straight pipe as the rear portion of the seventh pipe segment; The first elbow joint and the third elbow joint are both male elbow joints; the male elbow joint includes a first elbow joint and an annular baffle; one end of the first elbow joint is fixedly connected to one end of the first straight pipe or the second straight pipe, and the outer wall of the other end is provided with a cylindrical structure along the circumferential direction; the baffle is fixedly connected to the inner wall of the cylindrical structure and encloses the first joint cavity or the second joint cavity between the baffle and the inner wall of the cylindrical structure; The second elbow joint and the fourth elbow joint are both female elbow joints; the female elbow joint includes a second elbow joint and a gland structure; one end of the second elbow joint is fixedly connected to one end of the second straight pipe or the third straight pipe, and the outer wall of the other end is provided with a connecting portion along the circumferential direction; the gland structure is a hollow structure with one end open, and the end with the open end of the gland structure is fixedly connected to the connecting portion to form the first intermediate disk or the second intermediate disk; the end of the gland structure away from the connecting end is provided with a through hole; The inner diameters of the first elbow and the second elbow are both smaller than the inner diameters of the first straight pipe, the second straight pipe and the third straight pipe.

7. The multi-joint automatic fixation bracket according to claim 1, characterized in that: A rotating seat is fixed to the end portion of the seventh pipe segment away from the sixth pipe segment; the rotating seat is provided with a spherical groove serving as the fourth joint cavity; the inner wall of the spherical groove is provided with a first rope threading hole that passes through the rotating seat; the third joint body is provided with a spherical body; the third joint body is provided with a second rope threading hole; the spherical body is rotatably arranged in the spherical groove, and the first rope threading hole and the second rope threading hole are at least partially aligned; the diameter of the spherical body is larger than the notch diameter of the spherical groove; one end of the traction rope structure is sequentially passed through the first rope threading hole and the second rope threading hole, and is linked with the third joint body.

8. The multi-joint automatic fixation bracket according to claim 7, characterized in that: The end of the third joint body away from one end of the spherical body is provided with a limiting groove connected to the second rope threading hole; the traction assembly also includes a third fixing buckle; the third fixing buckle is arranged in the limiting groove and is fixedly connected to the traction rope structure; when the traction rope structure is pulled back or pushed outward, the third fixing buckle is abutted against or separated from the inner wall of the limiting groove.

9. The multi-joint automatic fixation bracket according to claim 1, characterized in that: One end of the linkage seat cover located outside the first joint cavity has two rotation installation points spaced apart; The linkage mechanism includes a mounting base, two first connecting rods, two second connecting rods and two third connecting rods; one end of the mounting base is connected to the output end of the driving mechanism, and the other end has a rotation connection point; one end of the two first connecting rods is rotationally connected to the rotation connection point, and the other end is rotationally connected to one end of the two second connecting rods; the other end of the two second connecting rods is rotationally connected to the two rotation mounting points; one end of the two third connecting rods is rotationally connected, and the other end is rotationally connected to the middle position of the two second connecting rods; The traction assembly further comprises a traction force frame; one end of the traction force frame is slidably arranged on the linkage seat cover, and the other end is rotatably connected to the connection point of the two third connecting rods.

10. The multi-joint automatic fixation bracket according to claim 1, characterized in that: The driving mechanism is a driving cylinder; a pneumatic switch is further provided between the target clamping structure and the third joint body; the pneumatic switch is used to control the opening and closing of the driving cylinder; and / or The device also includes a fixing mechanism having a clamping portion; the fixing mechanism is installed on the frame and is configured to be able to operably adjust the size of the clamping portion.

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