CN108478243B - Anus retractor - Google Patents
Anus retractor Download PDFInfo
- Publication number
- CN108478243B CN108478243B CN201810407936.4A CN201810407936A CN108478243B CN 108478243 B CN108478243 B CN 108478243B CN 201810407936 A CN201810407936 A CN 201810407936A CN 108478243 B CN108478243 B CN 108478243B
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- ring
- main ring
- traction
- traction wire
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- 210000000436 anus Anatomy 0.000 title claims abstract description 55
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 210000001519 tissue Anatomy 0.000 description 10
- 210000002255 anal canal Anatomy 0.000 description 5
- 210000003781 tooth socket Anatomy 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 206010068797 Anastomotic fistula Diseases 0.000 description 1
- 206010010539 Congenital megacolon Diseases 0.000 description 1
- 206010061149 Female genital tract fistula Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 208000004592 Hirschsprung disease Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010066892 Rectourethral fistula Diseases 0.000 description 1
- 208000003776 Rectovaginal Fistula Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010046454 Urethral injury Diseases 0.000 description 1
- 206010071212 Vulvovaginal injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses an anus retractor, which comprises a main ring (1), wherein a plurality of channels (2) extending from inside to outside are arranged on the main ring (1) along the circumferential direction of the main ring, a traction wire (3) capable of sliding in the channels (2) is arranged in a penetrating manner, one end of the traction wire (3) is connected with a hook head (4) capable of hooking into perianal tissues, and the other end of the traction wire (3) is connected with a movable traction piece (5) capable of moving relative to the main ring (1) to pull each traction wire (3) to slide in the channels (2) simultaneously. The invention has simple structure, convenient operation, good stability and even traction force.
Description
[ field of technology ]
The invention relates to an anus retractor.
[ background Art ]
The anus retractor plays an important role in exposing the operative field during the operation of the rectal anal canal, has wide application range and high use frequency, is often used for the operation treatment of diseases such as adult rectal anal canal tumor, trauma, congenital megacolon of children, anal occlusion, recto-urethral fistula, recto-vaginal fistula and the like, and has small operation space of the rectal anal canal operation due to anatomical structure factors such as small space of the rectal anal canal, deep position and the like, especially for children, the operation exposure is extremely difficult, if insufficient and stable exposure can not be realized, the operation difficulty can be greatly increased, and complications such as bleeding, urethral injury, vaginal injury, intestinal anastomotic fistula and the like are easy to occur during the operation.
The current common draw hook for the transanal operation is mainly a simple nail hook, but the traction of the nail hook is adopted to expose the anus, so that a plurality of defects exist: 1. the operation space of the surgery is reduced: when the nail hook is pulled and exposed, the nail hook is required to be placed in the anal canal to retract the anus, and the retractor occupies a certain operation space, so that the operation space is greatly reduced; 2. stability is not enough: the anus is continuously exposed by the assistant in operation, the position offset possibly occurs along with the extension of the operation time, the operation space is limited, the tiny offset possibly causes the exposure failure, readjustment is needed, and the operation time is consumed; 3. traction force is uneven: because a pull force is applied to the drag hook manually, the traction force is uneven, anatomical displacement is easy to cause, and the risk of side injury of surrounding organs is increased; 4. waste of human resources: at least 1-2 assistants are required to continuously apply force to the retractor to keep anus dilated in operation, and operation staff are increased to limit the operation space of a doctor of a main knife to a certain extent.
The present invention has been made in view of the above drawbacks.
[ invention ]
The invention aims to overcome the defects of the prior art and provides the anus retractor with simple structure, convenient operation, good stability and uniform traction force.
The invention is realized by the following technical scheme:
an anus retractor, which is characterized in that: the novel multifunctional traction device comprises a main ring 1, a plurality of channels 2 extending outwards from inside to outside are arranged on the main ring 1 along the circumferential direction of the main ring, traction wires 3 capable of sliding in the channels 2 are arranged in a penetrating mode, one end of each traction wire 3 is connected with a drag hook head 4 capable of being hooked into perianal tissues, and the other end of each traction wire 3 is connected with a movable traction piece 5 capable of moving relative to the main ring 1 to pull each traction wire 3 to slide in the channels 2.
The anus drag hook as described above, characterized in that: the movable traction piece 5 comprises an auxiliary ring 51 which is connected with the main ring 1 and can rotate along the circumferential direction relative to the main ring 1, and a plurality of connecting parts 7 which are connected with the corresponding traction wires 3 are arranged on the auxiliary ring 51.
The anus drag hook as described above, characterized in that: the movable traction member 5 comprises a secondary ring 51 which is connected with the primary ring 1 and can move up and down relative to the primary ring 1.
The anus drag hook as described above, characterized in that: the movable traction member 5 includes a rotation shaft 52 connected to the main loop 1 and rotatable with respect to the main loop 1, and each of the traction wires 3 is connected to the rotation shaft 52 and is wound around the rotation shaft 52 when the rotation shaft 52 rotates.
The anus drag hook as described above, characterized in that: the main ring 1 is provided with a ring groove 6 communicated with the channel 2, and the connecting part 7 is inserted into the ring groove 6 and can slide along the circumferential direction in the ring groove 6.
The anus drag hook as described above, characterized in that: the connecting part 7 is a rotating column capable of rotating relative to the auxiliary ring 51, one end of the rotating column is connected with the traction wire 3, and the other end of the rotating column is exposed out of the auxiliary ring 51.
The anus drag hook as described above, characterized in that: the outer side wall of the auxiliary ring 51 is provided with a plurality of tooth grooves 8, the main ring 1 is provided with a clamping pin 9 which can slide along the radial direction and is clamped with the tooth grooves 8, the main ring 1 is internally provided with a spring 10 which can ensure that the clamping pin 9 is clamped with the tooth grooves 8, and the end part of the clamping pin 9 is provided with an inclined surface 11 which can be extruded by the tooth grooves 8 to ensure that the clamping pin 9 moves along the radial direction when the auxiliary ring 51 rotates.
The anus drag hook as described above, characterized in that: the main ring 1 is provided with a supporting roller 12 for supporting the traction wire 3 at the port of the channel 2.
The anus drag hook as described above, characterized in that: the anus drag hook still include support 13, support 13 include upper end and main circle 1 swing joint's last branch 131, the lower extreme of going up branch 131 be connected with middle branch 132, middle branch 132 and last branch 131 between be equipped with universal joint 133, middle branch 132 lower extreme be connected with down branch 134, last branch 131 include the last branch upper segment 1311 of being connected with main circle 1 and the last branch hypomere 1312 of being connected with middle branch 132, last branch upper segment 1311 and last branch hypomere 1312 telescopic connection, middle branch 132 and hypomere 134 telescopic connection.
The anus drag hook as described above, characterized in that: the outer side of the auxiliary ring 51 is provided with a plurality of teeth 14, the main ring 1 is provided with a support plate 15, the support plate 15 is provided with a motor 16, and the output shaft of the motor 16 is provided with a gear 17 meshed with the teeth 14.
Compared with the prior art, the invention has the following advantages:
1. the traction wire passes through the channel on the main ring, the traction wire is radial and extends from the inner side to the outer side of the main ring, the movable traction piece is connected with each traction wire, when the movable traction piece moves relative to the main ring, the movable traction piece can pull each traction wire to slide in the channel at the same time, and when the traction wire moves towards the outer side of the main ring at the same time, the traction hook head pulls perianal tissues to expand the anus, so that the smooth operation is ensured. When the movable traction piece moves to pull the traction wire, the traction force is radial, accords with the anus physiological structure, enables the anus to be expanded and exposed more fully, and simultaneously slides outwards, the traction force is uniform, and when the anus is expanded to a required degree, the movable traction piece and the main ring are relatively fixed, so that the expansion degree of the traction wire to the anus is maintained, no position deviation occurs, and the stability is good. In addition, the pulling force of the drag hook is continuously applied by people without increasing, so that the personnel are saved, the operation space is enlarged, and the smooth operation can be ensured.
2. The auxiliary ring is connected to the main ring and can rotate relative to the main ring, and each traction wire is connected to the corresponding connecting part, so that when the auxiliary ring rotates, the connecting part on the auxiliary ring pulls the end part of each traction wire to move along the circumferential direction of the main ring, and the part on the traction wire and positioned at the inner side of the main ring moves to the outer side of the main ring, and the anus is expanded through the hook head. The rotary motion of the auxiliary ring is converted into the linear motion of the hook heads, the design is very ingenious, the structure is also very simple, the uniformity of traction force is ensured, each hook head simultaneously pulls the perianal tissues outwards, the anus is fully expanded and exposed, and the smooth operation is ensured.
3. The auxiliary ring is connected to the main ring and can move up and down relative to the main ring, and when the auxiliary ring moves up and down relative to the main ring, the auxiliary ring simultaneously pulls each traction wire, so that each traction wire simultaneously pulls the hook head to expand the anus. The vertical motion of the auxiliary ring is converted into the linear motion of the hook heads, the design is very ingenious, the uniformity of traction force is ensured, each hook head simultaneously pulls the perianal tissues outwards, the anus is fully expanded and exposed, and the smooth operation is ensured.
4. The main ring of the invention is provided with the rotating shaft which can rotate relative to the main ring, and each traction wire is connected to the rotating shaft, so that when the rotating shaft rotates, the traction wire is wound on the rotating shaft, and the anus is expanded by the drag hook head at the end part of the traction wire in the winding process, so that the whole structure is very simple, the operation is convenient, the traction wire can be pulled simultaneously, and the traction force is uniform.
5. The main ring is provided with the supporting roller for supporting the traction wire, and the traction wire is wound on the supporting roller, so that the traction wire is prevented from contacting with the edge of the port of the channel, sliding friction is converted into rolling friction, the traction wire is easier to pull, and the traction wire is prevented from sliding friction with the edge of the port of the channel, so that the service life of the traction wire is shortened.
6. The support frame comprises a plurality of support rod structures, and is adjusted in a plurality of modes such as telescopic, universal adjustment, front-back movable adjustment and the like, so that the support frame can be adjusted in a front-back, left-right, up-down multi-direction mode while fixing the main ring and the auxiliary ring, is very convenient, can be used for easily adjusting the anus retractor to an ideal position, is not influenced by the size of an operating table, the position of a patient and the body type, and has very wide applicability.
7. The invention has the advantages of simple structure, ingenious design, capability of reducing operation operators, labor saving, convenient operation and good stability, and is suitable for popularization and application.
[ description of the drawings ]
FIG. 1 is a perspective view of embodiment 1 of the present invention;
FIG. 2 is an exploded view of embodiment 1 of the present invention;
FIG. 3 is a cross-sectional view of embodiment 1 of the present invention;
FIG. 4 is a cross-sectional view of the fine tuning knob of example 1 of the present invention as it adjusts the traction wire;
FIG. 5 is a perspective view of a secondary ring of embodiment 2 of the present invention;
FIG. 6 is one of the sectional views of embodiment 2 of the present invention;
fig. 7 is an enlarged view at a in fig. 4;
FIG. 8 is a second cross-sectional view of embodiment 2 of the present invention;
fig. 9 is an enlarged view at B in fig. 6;
FIG. 10 is a perspective view of the bayonet of embodiment 2 of the present invention;
FIG. 11 is a top view of embodiment 3 of the present invention;
FIG. 12 is a side view of embodiment 3 of the present invention;
FIG. 13 is a schematic view of embodiment 4 of the present invention;
FIG. 14 is a perspective view of embodiment 5 of the present invention;
FIG. 15 is a cross-sectional view of embodiment 6 of the present invention;
fig. 16 is a side view of embodiment 6 of the present invention.
[ detailed description ] of the invention
The invention is further described below with reference to the accompanying drawings:
example 1:
as shown in fig. 1 and 2, an anus retractor comprises a main ring 1, a plurality of channels 2 extending outwards from inside are arranged on the main ring 1 along the circumferential direction of the main ring, a traction wire 3 capable of sliding in the channels 2 is arranged in a penetrating manner, one end of the traction wire 3 is connected with a retractor head 4 capable of hooking into perianal tissues, the other end of the traction wire 3 is connected with a movable traction piece 5 capable of moving relative to the main ring 1 to pull each traction wire 3 to slide in the channels 2 at the same time, the movable traction piece 5 comprises a secondary ring 51 connected with the main ring 1 and capable of rotating relative to the main ring 1 along the circumferential direction, and a plurality of connecting parts 7 connected with corresponding traction wires 3 are arranged on the secondary ring 51. The traction wire 3 passes through the channel 2 on the main ring 1, the traction wire 3 radially extends from the inner side of the main ring 1 to the outer side, the connecting part 7 on the auxiliary ring 51 is connected with each corresponding traction wire 3, when the auxiliary ring 51 moves relative to the main ring 1, the connecting part 7 on the auxiliary ring 51 can pull each traction wire 3 to slide in the channel 2 at the same time, when the traction wire 3 moves towards the outer side of the main ring 1 at the same time, the retractor head 4 pulls perianal tissues to expand the anus, and accordingly smooth operation is guaranteed. When the auxiliary ring 51 moves to pull the traction wire 3, the traction force is radial, the anus is in a physiological structure, the anus is fully expanded and exposed, the traction wire 3 simultaneously slides outwards, the traction force is uniform, the auxiliary ring 51 and the main ring 1 are relatively fixed when the anus is expanded to a required degree, the expansion degree of the traction wire 3 to the anus is maintained, no position deviation occurs, and the stability is good. In addition, the pulling force of the drag hook is continuously applied by people without increasing, so that the personnel are saved, the operation space is enlarged, and the smooth operation can be ensured. In this embodiment, when the auxiliary ring 51 rotates relative to the main ring 1, the auxiliary ring 51 pulls the end of each traction wire 3 to move along the circumferential direction of the main ring 1, so that the part of the traction wire 3 located inside the main ring 1 moves towards the outside of the main ring 1, the rotation of the auxiliary ring 51 is converted into the linear motion of the drag hook head 4, the design is very ingenious, the structure is very simple, the uniformity of the traction force is ensured, each drag hook head 4 simultaneously pulls the perianal tissues outwards, the anus is fully expanded and exposed, the dissection and the displacement are not easy, and the smooth operation is ensured. A handle (not shown) may be provided on the secondary ring 51 to facilitate the rotation of the secondary ring 51. In this embodiment, 8 channels 2 are provided, and the 8 channels 2 are uniformly arranged along the circumferential direction of the main ring 1, and the number of the traction wires is 8, and the traction wires 3 are made of silica gel or elastic steel.
As shown in fig. 2, the main ring 1 is provided with a ring groove 6 communicating with the channel 2, and the connecting portion 7 is inserted into the ring groove 6 and can slide in the circumferential direction in the ring groove 6. The connecting part 7 is inserted into the ring groove 6, the groove wall of the ring groove 6 plays a role in guiding, and the auxiliary ring 51 can rotate more stably and smoothly, so that the pull wire 3 can pull the pull hook head 4 at the same time, the traction force is ensured to be uniform, and the anus is ensured to be fully expanded and exposed.
As shown in fig. 1 and 2, the connecting portion 7 is a rotating post capable of rotating relative to the auxiliary ring 51, one end of the rotating post is connected to the traction wire 3, and the other end of the rotating post is exposed from the auxiliary ring 51. Therefore, in the operation, after the auxiliary ring 51 rotates to pull the traction wire 3 to move to expand the anus, the rotation column can be rotated by rotating the part of the rotation column exposed out of the auxiliary ring 51, so that the traction wire 3 is wound on the rotation column, and a certain traction wire 3 moves again, thereby adjusting the local position of the anus expansion, facilitating the operation, and enabling each traction wire 3 to be finely adjusted independently. As shown in fig. 10, when the connecting portion 7 is rotated, the connecting portion 7 winds the traction wire 3 so that the hook head 4 at the end of the traction wire 3 continues to move to the outside of the main loop 1. After fine adjustment, the connection portion 7 and the sub-ring 51 may be relatively fixed by a conventional engagement structure such as a locking groove and a locking pin.
Example 2:
as shown in fig. 5 to 10, embodiment 2 differs from embodiment 1 in that:
as shown in fig. 5 to 9, the outer side wall of the secondary ring 51 is provided with a plurality of tooth grooves 8, the primary ring 1 is provided with a locking pin 9 which can slide along the radial direction and is locked with the tooth grooves 8, and the primary ring 1 is also provided with a spring 10 which can keep the locking pin 9 locked with the tooth grooves 8. After the auxiliary ring 51 rotates for a certain angle, the bayonet lock 9 is clamped into the tooth socket 8, so that the main ring 1 and the auxiliary ring 51 are kept relatively fixed, the expansion degree of the traction wire 3 and the drag hook head 4 to the anus is kept, the exposed position is prevented from shifting, and the smooth operation is ensured. Of course, the positioning structure for fixing the main loop 1 and the auxiliary loop 51 relatively may also be a positioning structure in a conventional manner, for example, the auxiliary loop 51 is clamped with the main loop 1 by a clamping device.
As shown in fig. 10, the end of the bayonet 9 is provided with a bevel 11 which can be pressed by the tooth socket 8 to move the bayonet 9 radially when the secondary ring 51 rotates. Therefore, the bayonet lock 9 does not need to be exposed out of the main ring 1 and the bayonet lock 9 is pulled by hand to slide, when the auxiliary ring 51 rotates, the inclined plane 11 can be automatically extruded to retract the bayonet lock 9 into the main ring 1, when the auxiliary ring 51 reaches a proper position, the spring 10 pushes the bayonet lock 9 to clamp the bayonet lock 9 into the tooth socket 8, the structure is very simple, and the operation is very convenient and quick.
As shown in fig. 7 and 9, a supporting roller 12 for supporting the traction wire 3 is arranged on the main ring 1 and positioned at the port of the channel 2. The traction wire 3 is wound on the supporting roller 12, so that contact between the traction wire 3 and the port edge of the channel 2 can be avoided, sliding friction is converted into rolling friction, the traction wire 3 is pulled more easily, and sliding friction between the traction wire 3 and the port edge of the channel 2 is avoided, so that the service life of the traction wire 3 is shortened.
Example 3:
as shown in fig. 11 and 12, embodiment 3 differs from embodiment 1 in that:
the outer side of the auxiliary ring 51 is provided with a plurality of teeth 14, the main ring 1 is provided with a support plate 15, the support plate 15 is provided with a motor 16, and the output shaft of the motor 16 is provided with a gear 17 meshed with the teeth 14. When the motor 16 is started, the gear 17 is meshed with the teeth 14 on the auxiliary ring 51 to drive the auxiliary ring 51 to rotate, so that the degree of automation is high, the labor is saved, and the operation is convenient.
Example 4:
as shown in fig. 13, the anus retractor comprises a main ring 1, a plurality of channels 2 extending outwards from inside are arranged on the main ring 1 along the circumferential direction of the main ring, a traction wire 3 capable of sliding in the channels 2 is arranged in a penetrating manner, one end of the traction wire 3 is connected with a retractor head 4 capable of hooking into perianal tissues, the other end of the traction wire 3 is connected with an auxiliary ring 51 capable of moving relative to the main ring 1 to pull each traction wire 3 to slide in the channels 2 at the same time, and the auxiliary ring 51 is connected to the main ring 1 and can move up and down relative to the main ring 1. When the auxiliary ring 51 moves up and down relative to the main ring 1, the auxiliary ring 51 simultaneously pulls each traction wire 3, so that each traction wire 3 simultaneously pulls the hook head 4 to expand the anus. The vertical motion of the auxiliary ring 51 is converted into the linear motion of the drag hook heads 4, the design is very ingenious, the uniformity of traction force is ensured, each drag hook head 4 simultaneously pulls the perianal tissues outwards, the anus is fully expanded and exposed, and the smooth operation is ensured. The up-and-down movement of the secondary ring 51 may be driven by a ball screw drive or other drive mechanism. And a supporting roller for supporting the traction wire 3 is arranged on the main ring 1 and positioned at the port of the channel 2.
Example 5:
as shown in fig. 14, embodiment 5 differs from embodiment 1 in that:
the anus drag hook also comprises a bracket 13, the bracket 13 comprises an upper supporting rod 131 with the upper end movably connected with the main ring 1, the lower end of the upper supporting rod 131 is connected with a middle supporting rod 132, a universal joint 133 is arranged between the middle supporting rod 132 and the upper supporting rod 131, and the lower end of the middle supporting rod 132 is connected with a lower supporting rod 134. The upper support rod 131 comprises an upper support rod upper section 1311 connected with the main ring 1 and an upper support rod lower section 1312 connected with the middle support rod 132, the upper support rod upper section 1311 is in telescopic connection with the upper support rod lower section 1312, and the middle support rod 132 is in telescopic connection with the lower support rod 134. The lower support 134 is connected to the surgical bed, the upper support 131 is movably connected with the main loop 1, the upper support 131 is connected with the middle support 132 through a universal joint 133, the middle support 132 is telescopically connected with the lower support 134, and the upper support upper section 1311 is telescopically connected with the upper support lower section 1312, so that the position of the main loop 1 can be conveniently adjusted, the drag hook head 4 is ensured to be adjusted to a proper position, and the surgical operation is facilitated.
Example 6:
as shown in fig. 15 and 16, an anus retractor comprises a main ring 1, a plurality of channels 2 extending outwards from inside are arranged on the main ring 1 along the circumferential direction of the main ring, a traction wire 3 capable of sliding in the channels 2 is arranged in a penetrating manner, one end of the traction wire 3 is connected with a retractor head 4 capable of hooking into perianal tissues, and the other end of the traction wire 3 is connected with a movable traction piece 5 capable of moving relative to the main ring 1 to pull each traction wire 3 to slide in the channels 2. The movable traction member 5 includes a rotation shaft 52 connected to the main loop 1 and rotatable with respect to the main loop 1, and each of the traction wires 3 is connected to the rotation shaft 52 and is wound around the rotation shaft 52 when the rotation shaft 52 rotates. Every pull wire 3 is connected on axis of rotation 52, so when axis of rotation 52 rotates, pull wire 3 just twines on axis of rotation 52, and the drag hook head of in-process pull wire 3 tip just can expand the anus, when the anus expands to suitable position, can through the block structure with axis of rotation 52 with main circle 1 relative fixation can, whole simple structure, convenient operation can stimulate the pull wire simultaneously, and the traction force is even, can guarantee going on smoothly of operation.
And a supporting roller for supporting the traction wire 3 is arranged on the main ring 1 and positioned at the port of the channel 2.
Claims (4)
1. An anus retractor, which is characterized in that: the novel multifunctional traction device comprises a main ring (1), wherein a plurality of channels (2) extending from inside to outside are formed in the main ring (1) along the circumferential direction of the main ring, a traction wire (3) capable of sliding in the channels (2) is arranged in the channels in a penetrating mode, one end of the traction wire (3) is connected with a hook head (4) capable of hooking into perianal tissues, the other end of the traction wire (3) is connected with a movable traction piece (5) capable of moving relative to the main ring (1) to pull each traction wire (3) to slide in the channels (2) simultaneously, and the movable traction piece (5) comprises an auxiliary ring (51) connected with the main ring (1) and capable of moving up and down relative to the main ring (1); or the movable traction piece (5) comprises a rotating shaft (52) which is connected with the main ring (1) and can rotate relative to the main ring (1), and each traction wire (3) is connected to the rotating shaft (52) and can be wound on the rotating shaft (52) when the rotating shaft (52) rotates; or the movable traction piece (5) comprises an auxiliary ring (51) which is connected with the main ring (1) and can rotate along the circumferential direction relative to the main ring (1), a plurality of connecting parts (7) which are connected with corresponding traction wires (3) are arranged on the auxiliary ring (51), a ring groove (6) which is communicated with the channel (2) is arranged on the main ring (1), the connecting parts (7) are inserted into the ring groove (6) and can slide along the circumferential direction in the ring groove (6), the connecting parts (7) are rotary columns which can rotate relative to the auxiliary ring (51), one end of each rotary column is connected with the traction wire (3), the other end of each rotary column is exposed out of the auxiliary ring (51), a plurality of tooth grooves (8) are arranged on the outer side wall of the auxiliary ring (51), clamping pins (9) which can slide along the radial direction and are clamped with the tooth grooves (8) are arranged on the main ring (1), springs (10) which can enable the clamping pins (9) to be clamped with the tooth grooves (8) are further arranged in the main ring (1), and the clamping pins (9) are provided with inclined surfaces which can be extruded by the radial direction of the clamping pins (9) when the clamping pins (51) are arranged at the end parts of the tooth grooves (8) which are extruded.
2. The anus retractor of claim 1, wherein: and a supporting roller (12) for supporting the traction wire (3) is arranged on the main ring (1) and positioned at the port of the channel (2).
3. The anus retractor of claim 1, wherein: the anus drag hook still include support (13), support (13) include upper end and main circle (1) swing joint's last branch (131), the lower extreme of going up branch (131) be connected with middle branch (132), middle branch (132) and last branch (131) between be equipped with universal joint (133), middle branch (132) lower extreme be connected with down branch (134), last branch (131) include last branch upper segment (1311) and last branch hypomere (1312) of being connected with middle branch (132) with main circle (1), last branch upper segment (1311) and last branch hypomere (1312) telescopic connection, middle branch (132) and hypomere (134) telescopic connection.
4. The anus retractor of claim 1, wherein: the outer side of the auxiliary ring (51) is provided with a plurality of teeth (14), the main ring (1) is provided with a support plate (15), the support plate (15) is provided with a motor (16), and the output shaft of the motor (16) is provided with a gear (17) meshed with the teeth (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810407936.4A CN108478243B (en) | 2018-05-02 | 2018-05-02 | Anus retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810407936.4A CN108478243B (en) | 2018-05-02 | 2018-05-02 | Anus retractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108478243A CN108478243A (en) | 2018-09-04 |
| CN108478243B true CN108478243B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810407936.4A Active CN108478243B (en) | 2018-05-02 | 2018-05-02 | Anus retractor |
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| CN (1) | CN108478243B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114145793B (en) * | 2021-12-07 | 2024-03-22 | 江西省人民医院 | Flexible traction type self-adaptive angle adjustment surgical retractor |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2370829Y (en) * | 1999-04-13 | 2000-03-29 | 朱明才 | Ring retractor for anus, vagina and urethra operation |
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| CN104287794A (en) * | 2014-10-20 | 2015-01-21 | 李勇 | Minimally invasive traction bar |
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| CN208725784U (en) * | 2018-05-02 | 2019-04-12 | 王从军 | A kind of Anal pull hook |
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