CN114145793B - Flexible traction type self-adaptive angle adjustment surgical retractor - Google Patents
Flexible traction type self-adaptive angle adjustment surgical retractor Download PDFInfo
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- CN114145793B CN114145793B CN202111488759.5A CN202111488759A CN114145793B CN 114145793 B CN114145793 B CN 114145793B CN 202111488759 A CN202111488759 A CN 202111488759A CN 114145793 B CN114145793 B CN 114145793B
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- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 230000000670 limiting effect Effects 0.000 claims abstract description 4
- 230000003044 adaptive effect Effects 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000001519 tissue Anatomy 0.000 abstract description 21
- 230000001681 protective effect Effects 0.000 abstract description 14
- 210000003205 muscle Anatomy 0.000 abstract description 9
- 208000002847 Surgical Wound Diseases 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 9
- 230000002441 reversible effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000451 tissue damage Effects 0.000 description 4
- 231100000827 tissue damage Toxicity 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 206010052428 Wound Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 208000037816 tissue injury Diseases 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0293—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with ring member to support retractor elements
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- Surgical Instruments (AREA)
Abstract
The invention discloses a flexible traction type self-adaptive angle adjustment surgical retractor which comprises a disc seat, a supporting mechanism, a self-adaptive angle adjustment seat and a plurality of retractor mechanisms, wherein the disc seat is arranged on the supporting mechanism, the self-adaptive angle adjustment seat is arranged on the disc seat and can rotate around the axis of the disc seat, the plurality of retractor mechanisms are arranged on the self-adaptive angle adjustment seat, each retractor mechanism comprises a surgical retractor, a traction rope, a reel, a driving assembly for driving the reel to rotate, a locking assembly for limiting the reel and a protective assembly for preventing the retraction speed of the surgical retractor from being too fast, one end of the traction rope is wound on the reel, and the other end of the traction rope is connected with the surgical retractor. The surgical retractor can improve the matching problem of the surgical retractor and muscle tissues, can carry out self-adaptive adjustment according to the specific requirements of the traction directions of various surgical incisions and the characteristics of tissues around the surgical incisions, improves the surgical efficiency and avoids unhooking.
Description
Technical Field
The invention relates to medical auxiliary instruments, in particular to a flexible traction type self-adaptive angle adjustment surgical retractor.
Background
Surgical retractors are a commonly used surgical medical instrument for pulling tissue (skin, muscle, tendon, fascia, ligament, etc.) around a incision to fully expose the surgical field of view and improve the quality of the procedure. The existing operation retractors are mainly installed manually and towed manually, however, the operation in the installation and towing processes is complicated, the stepless adjustment of the locking position of the retractor cannot be realized, and the functions of self-adaptive angle adjustment and automatic retraction are not realized.
In terms of applicability, existing surgical retractors mainly have the following problems:
1. the existing retractors can only realize radial retraction with a plurality of fixed pitch angles, cannot carry out self-adaptive adjustment according to the characteristics of tissues around the incision position of a patient and the specific requirements of the retraction directions of various surgical incisions, have no adjustment functions of retraction pitch angle and retraction directions, and bring inconvenience to the surgery of special statures and specific positions.
2. The existing retractor is easy to form the condition that the edge of the retractor is in point contact or line contact with muscle tissues due to fixed retraction angle, the stress area is small, the pressure intensity is relatively large, and the retractor is easy to unhook, so that secondary damage to the muscle tissues at the incision is caused.
3. When the existing retractor works, the retractor can be subjected to great reverse tension of tissues around an operation incision, and the risks of rapid retraction such as unhooking during retraction, unhooking during working, unhooking during unlocking and the like exist, so that the consequences are not considered. Moreover, when unlocking the retractor, a small distance needs to be pulled first, then the unlocking is released, and inconvenience and risk of tissue injury around the incision are caused.
4. The existing retractors are mainly manually adjusted at specific gears, stepless adjustment of locking at any position cannot be realized, the interval distance of the locking gears is large, the optimal position required to be exposed by the operation incision cannot be accurately adjusted, tearing and muscle tissue damage at the operation incision are easily caused, or the retraction tension is insufficient, the operation is influenced, and the modern operation requirements are difficult to match.
5. The existing retractor has the advantages of simple structure, low cost, but weak structural universality, retraction stability and other functional applicability. In the operation, a special nursing staff is often needed to assist to ensure the retracting effect of the retractor, so that human resources are wasted, and meanwhile, the stability risk which is difficult to avoid exists.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art, and provides the flexible traction type self-adaptive angle adjusting operation retractor which can automatically adjust the operation vision, prevent the operation retractor from retreating and can perform self-adaptive adjustment according to the characteristics of tissues around the operation incision and specific requirements of various operation incision traction directions.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a flexible towed self-adaptation angle modulation operation retractor, includes disc seat, supporting mechanism, self-adaptation angle modulation seat and a plurality of retractor mechanism, the disc seat is located on the supporting mechanism, self-adaptation angle modulation seat is located on the disc seat and can wind the axis of disc seat is rotatory, a plurality of retractor mechanism is located on the self-adaptation angle modulation seat, retractor mechanism includes operation drag hook, haulage rope, spool, is used for driving the rotatory drive assembly of spool, is used for carrying out spacing locking assembly and be used for preventing the fast protective component of operation drag hook backspacing to the spool, the one end winding of haulage rope in on the spool, the other end of haulage rope with the operation drag hook links to each other.
As a further improvement of the above technical scheme: the self-adaptive angle adjusting seat is provided with a plurality of sliding grooves, the sliding grooves form a polygonal structure, and the retracting mechanism is movably arranged in the sliding grooves.
As a further improvement of the above technical scheme: the circular groove is formed in the disc seat, the universal wheel is arranged in the circular groove, and the self-adaptive angle adjusting seat is connected with the universal wheel.
As a further improvement of the above technical scheme: the bottom of self-adaptation angle modulation seat is equipped with the wedge, be equipped with the wedge groove on the connecting portion of universal wheel, the wedge with the wedge groove cooperation, the outside or the inboard of circular recess are equipped with the dismouting groove, the dismouting groove with be equipped with the passageway between the circular recess.
As a further improvement of the above technical scheme: the protection assembly comprises a rotary table, a first ratchet wheel, a first pawl, a guide rod and a first spring, wherein the rotary table is sleeved in the first ratchet wheel and connected with the scroll, the first ratchet wheel is fixedly arranged, a fixed sleeve is arranged on the rotary table, the guide rod is movably arranged in the fixed sleeve in a penetrating mode, one end of the first pawl is hinged to the rotary table, the other end of the first pawl is connected with the guide rod, a boss is arranged at one end, away from the first pawl, of the guide rod, and the first spring is sleeved on the guide rod and is propped between the fixed sleeve and the boss.
As a further improvement of the above technical scheme: the retracting mechanism further comprises a retracting mechanism base, and the driving component and the locking component are both arranged on the retracting mechanism base.
As a further improvement of the above technical scheme: the driving assembly comprises a first driving motor and a speed reducer, wherein the first driving motor is arranged on the base of the traction mechanism, and the first driving motor is connected with the scroll through the speed reducer.
As a further improvement of the above technical scheme: the locking assembly comprises a second ratchet wheel, a second pawl and a second driving motor for driving the second pawl to rotate, the second driving motor is arranged on the base of the traction mechanism, the second pawl is arranged on an output shaft of the second driving motor, the second ratchet wheel is arranged on the reel, and the second pawl is matched with the second ratchet wheel.
As a further improvement of the above technical scheme: the locking assembly further comprises a second spring, an abutting portion is arranged at one end, away from the second ratchet wheel, of the second pawl, one end of the second spring abuts against the abutting portion, and the other end of the second spring abuts against the base of the pulling mechanism.
As a further improvement of the above technical scheme: the supporting mechanism comprises a supporting seat, a sleeve and a stretching rod, wherein the sleeve is arranged on the supporting seat, the stretching rod is arranged in the sleeve in a penetrating mode, and the disc seat is connected with the stretching rod.
Compared with the prior art, the invention has the beneficial effects that:
the invention discloses a flexible traction type self-adaptive angle adjustment surgical retractor, which is characterized in that a disc seat is arranged on an operating table through a supporting mechanism, and a plurality of traction mechanisms on the self-adaptive angle adjustment seat are used for automatically dragging tissues around a surgical incision, so that the surgical field is enlarged, and the traction mechanisms can be subjected to reverse tension of muscle tissues in the traction process, so that the self-adaptive angle adjustment seat is self-adaptively rotated in the direction of the tension force. Specifically, the doctor holds the operation drag hook and hooks the tissue, the drive assembly drives the scroll to rotate, the traction rope wound on the scroll is tightened, thereby the operation drag hook is used for pulling and retracting the tissue around the operation incision through the operation drag hook, the operation visual field is enlarged, the stepless adjustment of the operation drag hook is realized, the operation is convenient, the operation visual field can be automatically adjusted, the operation drag hook is not required to be manually pulled, the working intensity of doctors is lightened, the tissue can be pulled and retracted from different pitching angles through the traction rope, the matching problem of the operation drag hook and muscle tissue is improved, the self-adaptive adjustment can be carried out according to the tissue characteristics around the operation incision and the specific requirements of various operation incision traction directions, the operation efficiency is improved, unhooking is avoided, the reverse rotation of the scroll is limited through the locking assembly, the operation drag hook is prevented from being retracted under the action of tissue tension force, the tissue damage is avoided, the locking assembly is loosened after the operation is finished, the operation drag hook is driven through the tension of the tissue, the reverse rotation of the scroll is enabled, the reverse rotation of the drive assembly is driven, the operation drag hook is limited through the rotation speed of the operation drag hook, the operation retraction speed is realized, the operation motion speed is controllable, the operation drag hook is realized, the operation retraction speed is stopped, the self-adapting operation is according to different pitching angles, the matching requirements of the operation drag hook, the tissue is stopped, the operation drag hook is prevented from being used, the damage after the operation drag hook is caused, and the damage is caused.
Drawings
Fig. 1 is a schematic structural view of a flexible traction-type adaptive angle adjustment surgical retractor of the present invention.
Fig. 2 is a schematic structural view of the disc seat and the supporting mechanism in the present invention.
Fig. 3 is an enlarged view at a in fig. 2.
Fig. 4 is a schematic structural view of the universal wheel according to the present invention.
Fig. 5 is a partial schematic view of the mounting/dismounting opening in the present invention.
FIG. 6 is a schematic view of a portion of the back of the adaptive angle adjustment seat of the present invention.
Fig. 7 is a schematic structural view of a retracting mechanism in the present invention.
Fig. 8 is a schematic structural view of a retractor of the present invention having a first protective cover and a second protective cover.
Fig. 9 is an enlarged view of a portion of the locking assembly of the present invention.
Fig. 10 is a schematic view of the retracting mechanism according to the present invention after the first protective cover and the second protective cover are removed.
Fig. 11 is a schematic structural view of the connection mode of the protection component and the reel in the invention.
Fig. 12 is a schematic front view of the protective assembly of the present invention.
The reference numerals in the drawings denote: 1. a disc seat; 11. a circular groove; 12. a universal wheel; 121. a connection part; 122. wedge-shaped grooves; 13. a disassembly and assembly groove; 14. a channel; 15. a disassembly and assembly opening; 2. a retracting mechanism; 21. a retractor mechanism base; 22. a retractor mechanism boot; 3. a surgical retractor; 4. a traction rope; 5. a reel; 6. a drive assembly; 61. a first driving motor; 62. a speed reducer; 63. a power supply unit; 64. a first protective cover; 7. a locking assembly; 71. a second ratchet; 72. a second pawl; 721. an abutting portion; 73. a second driving motor; 74. a second spring; 75. a second protective cover; 8. a protective assembly; 81. a turntable; 811. a fixed sleeve; 82. a first ratchet; 83. a first pawl; 831. a moving groove; 84. a guide rod; 841. a pin joint; 842. a boss; 85. a first spring; 91. a support mechanism; 911. a support base; 9111. a clamp; 912. a sleeve; 913. a stretching rod; 9131. a handle; 92. an adaptive angle adjusting seat; 921. wedge blocks; 922. and a sliding groove.
Detailed Description
The invention is described in further detail below with reference to the drawings and specific examples of the specification.
As shown in fig. 1 to 12, the flexible traction type self-adaptive angle adjustment surgical retractor of this embodiment includes a disc seat 1, a supporting mechanism 91, a self-adaptive angle adjustment seat 92 and a plurality of retractor mechanisms 2, wherein the disc seat 1 is disposed on the supporting mechanism 91, the self-adaptive angle adjustment seat 92 is disposed on the disc seat 1 and can rotate around the axis of the disc seat 1, the plurality of retractor mechanisms 2 are disposed on the self-adaptive angle adjustment seat 92, the retractor mechanisms 2 include a surgical retractor 3, a traction rope 4, a reel 5, a driving component 6 for driving the reel 5 to rotate, a locking component 7 for limiting the reel 5, and a protective component 8 for preventing the retraction speed of the surgical retractor 3 from being too fast, one end of the traction rope 4 is wound on the reel 5, and the other end of the traction rope 4 is connected with the surgical retractor 3.
The flexible traction type self-adaptive angle adjustment surgical retractor device is characterized in that a disc seat 1 is arranged on an operating table through a supporting mechanism 91, a plurality of traction mechanisms 2 on a self-adaptive angle adjustment seat 92 automatically retract tissues around a surgical incision, so that the surgical field is expanded, and in the traction process, the traction mechanisms 2 can be subjected to reverse tension of muscle tissues, so that the self-adaptive angle adjustment seat 92 is self-adaptively rotated in the direction of the tension. Specifically, the doctor holds the operation drag hook 3 to hook the tissue, the drive assembly 6 drives the reel 5 to rotate, the traction rope 4 wound on the reel 5 is tightened, thereby the operation drag hook 3 is used for pulling the tissue around the operation incision, the operation visual field is enlarged, the stepless regulation of the operation drag hook 3 is realized, the operation visual field can be automatically regulated, the operation drag hook 3 is not required to be pulled manually, the working strength of doctors is lightened, the tissue can be pulled from different pitching angles through the traction rope 4, the matching problem of the operation drag hook 3 and muscle tissue is improved, the self-adaptive regulation can be carried out according to the tissue characteristics around the operation incision and the specific requirements of various operation incision traction directions, the operation efficiency is improved, unhooking is avoided, the reverse rotation of the reel 5 is limited through the locking assembly 7, the operation drag hook 3 is prevented from backing under the action of the tissue tension force, the tissue damage is avoided, after the operation is finished, the locking assembly 7 is loosened, the operation drag hook 3 is driven by the tissue to reversely rotate, the reel 5 is driven to reversely rotate, meanwhile, the rotation speed of the reel 5 is limited, the operation drag hook 3 is controlled to move at a controllable speed, the operation drag hook 3 is pulled back 3, when the operation drag hook 3 is stopped, the operation drag hook 3 is stopped after the operation drag hook 3 is stopped, the operation drag hook 3 is stopped, and the operation drag hook is prevented from being stopped, and the operation drag hook is stopped from being stopped.
In this embodiment, a plurality of sliding grooves 922 are disposed on the adaptive angle adjusting seat 92, the sliding grooves 922 form a polygonal structure, the retracting mechanisms 2 are movably disposed in the sliding grooves 922, the number of the sliding grooves 922 is greater than that of the retracting mechanisms 2, and only one retracting mechanism 2 is disposed in each sliding groove 922. Preferably, six sliding grooves 922 are arranged on the self-adaptive angle adjusting seat 92, when a plurality of retracting mechanisms 2 carry out traction work, the self-adaptive angle adjusting seat 92 can rotate along with the direction of the traction force, and meanwhile, the retracting mechanisms 2 can also move in the sliding grooves 922, so that self-adaptive adjustment of the system is realized, and stress self-balance of the system is realized.
In this embodiment, a circular groove 11 is formed in the disc seat 1, a universal wheel 12 is disposed in the circular groove 11, and a self-adaptive angle adjusting seat 92 is connected with the universal wheel 12. The circular groove 11 is concentric with the disc seat 1, and the self-adaptive angle adjusting seat 92 rotates on the circular groove 11 through the universal wheel 12, so that the self-adaptive angle adjusting seat 92 is convenient to adjust in a self-adaptive manner.
In this embodiment, a plurality of wedge blocks 921 are disposed at intervals along the circumferential direction at the bottom of the adaptive angle adjusting seat 92, wedge grooves 122 capable of being matched with the wedge blocks 921 are disposed on the connecting portion 121 of the universal wheel 12, dismounting grooves 13 are disposed on the outer side or inner side of the circular groove 11, and a channel 14 is disposed between the dismounting grooves 13 and the circular groove 11. Specifically, the fitting of wedge 921 and wedge groove 122 facilitates the removal of adaptive angle adjustment seat 92, and universal wheel 12 is placed in removal groove 13 when not in use. The dismounting groove 13 is preferably provided with two, when the self-adaptation angle adjustment seat 92 is installed, the universal wheel 12 is moved to the channel 14 from the dismounting groove 13, the wedge block 921 of the self-adaptation angle adjustment seat 92 is aligned with the wedge groove 122 on the universal wheel 12, a tool stretches into the push connecting part 121 from the dismounting opening 15 on the disc seat 1 to enable the wedge groove 122 to be matched with the wedge block 921, after the matching is finished, the universal wheel 12 enters the circular groove 11 and rotates the self-adaptation angle adjustment seat 92 by a certain angle to install the next universal wheel 12, when the self-adaptation angle adjustment seat 92 needs to be maintained, the wedge groove 122 is separated from the wedge block 921 from the reverse push connecting part 121, so that the universal wheel 12 is moved to the dismounting groove 13 from the circular groove 11 through the channel 14, dismounting of the self-adaptation angle adjustment seat 92 is convenient to maintain, and in other embodiments, the dismounting groove 13, the channel 14 and the dismounting opening 15 can be provided with a plurality of self-adaptation angle adjustment seats 921 can be dismounted simultaneously through a plurality of dismounting grooves 13, the channel 14 and the dismounting opening 15, and the dismounting speed of the self-adaptation angle adjustment seat 921 is accelerated. The cooperation between each subassembly does not have tiny spare part participation, and the assembly is simple and reliable, avoids the tiny spare part to drop on the operating table in the dismouting process and causes medical malpractice, reduces the operation risk.
In this embodiment, the protection component 8 includes a rotary plate 81, a first ratchet 82, a first pawl 83, a guide rod 84, and a first spring 85, where the rotary plate 81 is sleeved in the first ratchet 82 and connected with the spool 5, the first ratchet 82 is fixedly arranged, a fixing sleeve 811 is arranged on the rotary plate 81, the guide rod 84 is movably inserted into the fixing sleeve 811, one end of the first pawl 83 is hinged with the rotary plate 81, the other end of the first pawl 83 is connected with the guide rod 84, one end of the guide rod 84 far away from the first pawl 83 is provided with a boss 842, and the first spring 85 is sleeved on the guide rod 84 and is propped between the fixing sleeve 811 and the boss 842. Specifically, when the retraction speed of the surgical retractor 3 is too high, the first pawl 83 moves outwards under the action of centrifugal force, so that the first pawl 83 is matched with the first ratchet 82, the rotating disc 81 and the reel 5 stop rotating at the moment, the surgical retractor 3 stops retracting, the plurality of surgical retractors 3 are prevented from colliding to cause tissue damage, after safety is confirmed, the first pawl 83 is separated from the first ratchet 82, the first pawl 83 is reset through the first spring 85, and the movement of the first pawl 83 is guided and limited through the guide rod 84.
In this embodiment, the guide rod 84 is provided with a pin joint 841, and the first pawl 83 is provided with a moving groove 831 in which the pin joint 841 moves. The first pawl 83 moves outward along the hinge point by centrifugal force, and the pin joint 841 moves on the first pawl 83 by the moving groove 831.
In this embodiment, the retracting mechanism 2 further includes a retracting mechanism base 21 and a retracting mechanism protecting cover 22, the driving component 6 and the locking component 7 are both disposed on the retracting mechanism base 21, and the retracting mechanism protecting cover 22 protects the internal parts from dust. The driving assembly 6 includes a first driving motor 61, a decelerator 62, and a power supply unit 63, the first driving motor 61 is provided on the retractor mechanism base 21, and the first driving motor 61 is connected to the reel 5 through the decelerator 62. The power supply unit 63 is used for supplying power to the first driving motor 61, and the power supply unit 63 can be charged wirelessly through a wireless charger outside the protective cover 22 of the traction mechanism (the wireless charging technology is the prior art, and is similar to a wireless charger of a mobile phone, and is not described in detail any more), so that the device is simple and convenient, the protective cover 22 of the traction mechanism is not required to be opened for charging, and the tightness of the device is improved. When the first driving motor 61 is started, the output rotation speed is reduced through the speed reducer 62 to increase the output torque, so that the reel 5 is driven to rotate, the traction rope 4 can be effectively tightened by the reel 5, and the special performance of different physical characteristics and operation positions can be matched, so that the working stability is high. The first protection cover 64 for protecting the driving assembly 6 is arranged on the traction mechanism base 21, so that impurities are prevented from entering, and the tightness is improved.
In this embodiment, the driving components 6 are provided with two groups and are respectively located at two ends of the reel 5. The reel 5 is driven to rotate by the two groups of driving components 6, so that the surgical retractor 3 moves more stably, and the traction force on tissues is increased.
In this embodiment, the locking assembly 7 includes a second ratchet 71, a second pawl 72 and a second driving motor 73 for driving the second pawl 72 to rotate, the second driving motor 73 is disposed on the base 21 of the pulling mechanism, the second pawl 72 is disposed on an output shaft of the second driving motor 73, the second ratchet 71 is disposed on the spool 5, and the second pawl 72 is matched with the second ratchet 71. The power supply unit 63 may simultaneously supply power to the first driving motor 61 and the second driving motor 73, and when the driving assembly 6 drives the reel 5 to rotate to tighten the traction rope 4, the second pawl 72 slides on the second ratchet 71, the second ratchet 71 is restricted from rotating reversely by the second pawl 72, and the second pawl 72 is driven to rotate by the second driving motor 73 to separate the second pawl 72 from the second ratchet 71.
In this embodiment, the locking assembly 7 further includes a second spring 74, an abutment 721 is provided at an end of the second pawl 72 away from the second ratchet 71, one end of the second spring 74 abuts against the abutment 721, and the other end of the second spring 74 abuts against the pulling mechanism base 21. The second pawl 72 is kept in engagement with the second ratchet 71 by the second spring 74, so that the stability of the assembly is further improved, and the second spring 74 can be limited by the mounting groove, in which the second spring 74 extends, formed in both the pulling mechanism base 21 and the abutting portion 721. The locking assembly 7 further comprises a second protective cover 75 for protecting the second driving motor 73 from impurities, and improving the sealing performance.
In this embodiment, the locking assemblies 7 are provided in two groups and are respectively located at two ends of the reel 5. The rotation of the reel 5 is restricted by the two sets of locking assemblies 7, so that the reliability is higher.
In this embodiment, the traction ropes 4 are preferably provided in two. The surgical retractor 3 is pulled by the two pulling ropes 4, so that the pulling process is more stable.
In this embodiment, the supporting mechanism 91 includes a supporting seat 911, a sleeve 912 and a stretching rod 913, a clamp 9111 is provided at the bottom of the supporting seat 911, the supporting seat 911 is mounted on the operating table by the clamp 9111, the sleeve 912 is provided at the top of the supporting seat 911, the stretching rod 913 is inserted into the sleeve 912, the disc seat 1 is connected with one end of the stretching rod 913, a handle 9131 is provided at the other end of the stretching rod 913, and the position of the disc seat 1 is adjustable by holding the handle 9131.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.
Claims (7)
1. A flexible traction type self-adaptive angle adjustment surgical retractor, which is characterized in that: the device comprises a disc seat (1), a supporting mechanism (91), a self-adaptive angle adjusting seat (92) and a plurality of traction mechanisms (2), wherein the disc seat (1) is arranged on the supporting mechanism (91), the self-adaptive angle adjusting seat (92) is arranged on the disc seat (1) and can rotate around the axis of the disc seat (1), the traction mechanisms (2) are all arranged on the self-adaptive angle adjusting seat (92), the traction mechanisms (2) comprise an operation retractor (3), a traction rope (4), a reel (5), a driving assembly (6) for driving the reel (5) to rotate, a locking assembly (7) for limiting the reel (5) and a protection assembly (8) for preventing the retraction speed of the operation retractor (3), one end of the traction rope (4) is wound on the reel (5), and the other end of the traction rope (4) is connected with the operation retractor (3);
the protection assembly (8) comprises a rotary table (81), a first ratchet wheel (82), a first pawl (83), a guide rod (84) and a first spring (85), wherein the rotary table (81) is sleeved in the first ratchet wheel (82) and is connected with the scroll (5), the first ratchet wheel (82) is fixedly arranged, a fixed sleeve (811) is arranged on the rotary table (81), the guide rod (84) is movably arranged in the fixed sleeve (811) in a penetrating mode, one end of the first pawl (83) is hinged with the rotary table (81), the other end of the first pawl (83) is connected with the guide rod (84), a boss (842) is arranged at one end, far away from the first pawl (83), of the guide rod (84), and the first spring (85) is sleeved on the guide rod (84) and is propped against the position between the fixed sleeve (811) and the boss (842);
the traction mechanism (2) further comprises a traction mechanism base (21), and the driving component (6) and the locking component (7) are arranged on the traction mechanism base (21);
the locking assembly (7) comprises a second ratchet wheel (71), a second pawl (72) and a second driving motor (73) for driving the second pawl (72) to rotate, the second driving motor (73) is arranged on the traction mechanism base (21), the second pawl (72) is arranged on an output shaft of the second driving motor (73), the second ratchet wheel (71) is arranged on the scroll (5), and the second pawl (72) is matched with the second ratchet wheel (71).
2. The flexible traction type adaptive angle adjustment surgical retractor according to claim 1, wherein: the self-adaptive angle adjusting seat (92) is provided with a plurality of sliding grooves (922), the sliding grooves (922) form a polygonal structure, and the traction mechanism (2) is movably arranged in the sliding grooves (922).
3. The flexible traction type adaptive angle adjustment surgical retractor according to claim 1, wherein: the circular groove (11) is formed in the disc seat (1), the universal wheel (12) is arranged in the circular groove (11), and the self-adaptive angle adjusting seat (92) is connected with the universal wheel (12).
4. A flexible traction type adaptive angle adjustment surgical retractor according to claim 3, wherein: the bottom of self-adaptation angle modulation seat (92) is equipped with a plurality of wedge (921) along circumferencial direction interval, be equipped with on connecting portion (121) of universal wheel (12) can with wedge (921) complex wedge groove (122), the outside or the inboard of circular recess (11) are equipped with dismouting groove (13), dismouting groove (13) with be equipped with passageway (14) between circular recess (11).
5. The flexible traction adaptive angle adjustment surgical retractor of any one of claims 1-4, wherein: the driving assembly (6) comprises a first driving motor (61) and a speed reducer (62), the first driving motor (61) is arranged on the traction mechanism base (21), and the first driving motor (61) is connected with the scroll (5) through the speed reducer (62).
6. The flexible traction adaptive angle adjustment surgical retractor of any one of claims 1-4, wherein: the locking assembly (7) further comprises a second spring (74), an abutting portion (721) is arranged at one end, away from the second ratchet wheel (71), of the second pawl (72), one end of the second spring (74) abuts against the abutting portion (721), and the other end of the second spring (74) abuts against the pulling mechanism base (21).
7. The flexible traction adaptive angle adjustment surgical retractor of any one of claims 1-4, wherein: the supporting mechanism (91) comprises a supporting seat (911), a sleeve (912) and a stretching rod (913), wherein the sleeve (912) is arranged on the supporting seat (911), the stretching rod (913) is arranged in the sleeve (912) in a penetrating way, and the disc seat (1) is connected with the stretching rod (913).
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| CN114145793A (en) | 2022-03-08 |
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