CN110215244B - A strut mechanism for orthopedics backbone operation tissue - Google Patents

A strut mechanism for orthopedics backbone operation tissue Download PDF

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Publication number
CN110215244B
CN110215244B CN201910651122.XA CN201910651122A CN110215244B CN 110215244 B CN110215244 B CN 110215244B CN 201910651122 A CN201910651122 A CN 201910651122A CN 110215244 B CN110215244 B CN 110215244B
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China
Prior art keywords
opening
rod
support
support plate
arm
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Expired - Fee Related
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CN201910651122.XA
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Chinese (zh)
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CN110215244A (en
Inventor
拾欣
孙悦
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Shin Hsin
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Individual
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Publication of CN110215244A publication Critical patent/CN110215244A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/025Joint distractors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/025Joint distractors
    • A61B2017/0256Joint distractors for the spine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00General characteristics of surgical instruments
    • A61B2217/002Auxiliary appliance
    • A61B2217/005Auxiliary appliance with suction drainage system

Abstract

The invention relates to the technical field of medical instruments, in particular to a distraction mechanism for orthopedic spinal surgery tissues, which comprises a first support plate, a second support plate, a delivery pipe and a threaded push rod, wherein support arms are hinged at two ends of the first support plate, push-pull rods are hinged at two ends of the second support plate, the other end of each push-pull rod is hinged at the front end of a strip-shaped through groove, a distraction arm is arranged at the front end of each distraction rod, a through hole is formed in the bottom of the distraction arm, a plurality of groups of uniformly spaced annular bodies are further arranged at the bottom of each distraction arm, the free end of the delivery pipe is exposed, the other end of each delivery pipe penetrates through the front end of each support arm, and the other end of each delivery. According to the invention, the incision at the spine can be kept in the opened state for a long time only by one integrated instrument without loosening, the operation visual field is good after opening, special operation is not needed, an operator can operate by one person, the effusion in the incision can be effectively sucked in real time, the operation is simplified, and the safety is improved.

Description

A strut mechanism for orthopedics backbone operation tissue
Technical Field
The invention relates to the technical field of medical instruments, in particular to a distraction mechanism for orthopedic spinal surgery tissues.
Background
The spinal diseases are that sclerotin, intervertebral disc, ligament and muscle of the spine are diseased, and then the spinal cord, spinal nerves, blood vessels and vegetative nerves are pressed and pulled to stimulate, thereby causing complex and various symptoms.
The common diseases include cervical spondylosis and lumbar spondylosis. The main symptoms are: failure to stand upright, headache, vertigo, blurred vision, memory loss, soreness of the neck and shoulders, poor appetite, regurgitation, vomiting, weakness of lower limbs, and paralysis in severe cases.
In the prior art, when a surgery is clinically used for treatment, as shown in fig. 1, the skin of a patient is cut open at the spine 19 to expose the spine 19, and then another doctor or nurse is needed to assist in opening a certain incision, so that the doctor can conveniently perform the surgery.
The incision is expanded after becoming smaller, which may cause blood surge at the spine of the patient and affect the operation, and the effusion of the tissue easily generated during the operation, if other negative pressure devices are adopted, firstly, the efficiency and the progress of the operation are affected, and secondly, the effusion is slowly generated, so that the effusion can not be absorbed in real time when a certain amount of effusion is not generated.
Disclosure of Invention
The invention aims to provide a distraction mechanism for orthopedic spinal surgery tissues, which solves the problems in the background technology. A strut mechanism for orthopedics backbone operation tissue only through the utensil of an integration during the operation, can keep the state of strutting to the edge of a knife of backbone department for a long time, does not take place to become flexible, struts the back operation field of vision fine, need not to be equipped with the special messenger and operate, and the operation doctor alone operates, can operate it behind the backbone of strutting the edge of a knife, can effectually absorb the intraoral hydrops of edge of a knife in real time simultaneously, has simplified the operation, has promoted the security.
In order to achieve the purpose, the invention provides the following technical scheme:
an opening mechanism for orthopedic spinal surgery tissues comprises a first support plate, a second support plate, a delivery pipe and a threaded push rod, two ends of the first support plate are hinged with support arms, two ends of the second support plate are hinged with push-pull rods, a strip-shaped through groove is arranged on the first support plate, the other end of the push-pull rod is hinged and arranged at the front end of the strip-shaped through groove, the front end of the support arm is provided with an adjusting rod vertical to the support arm, the adjusting rod is sleeved with an opening rod, the front end of the opening rod is provided with an opening arm, the adjusting rod, the opening rod and the opening arm are all hollow rods, the bottom of the opening arm is provided with a through hole, and the bottom is also provided with a plurality of groups of evenly spaced annular bodies, the free end of the conveying pipe is exposed, the other end of the conveying pipe penetrates through the front end of the support arm, and the threaded push rod penetrates through a threaded hole preset in the middle of the first support plate and then is rotatably connected with the second support plate.
Preferably, the strutting arm is formed by bending a metal wire into an Contraband or U-shaped hollow pipe body with an outward opening.
Preferably, the free end of the conveying pipe is detachably connected with a negative pressure drainage device or an injection device.
Preferably, the adjusting rod comprises a first rod body and a second rod body, the second rod body is movably inserted into the first rod body and penetrates through the first rod body through a locking nut to adjust the locking of the second rod body, the opening rod is sleeved at the bottom of the second rod body, and the first rod body is installed at the front end of the support arm.
Preferably, the second support plate is provided with a bearing, one end of the threaded push rod is inserted into the bearing, and the other end of the threaded push rod is provided with a handle with anti-skid threads.
Preferably, the first support plate is further hinged with an anti-loosening bracket with a torsion spring, and the end of the anti-loosening bracket is provided with inverted teeth locked with the surface threads of the threaded push rod.
Compared with the prior art, the invention has the beneficial effects that:
when the medical spinal column dilator is used clinically, firstly, Contraband-shaped or U-shaped hollow pipe bodies of two distraction arms, which are bent by metal wires to form openings facing outwards, are placed in a spinal column incision and are respectively positioned at two sides of a spinal column, namely an area a and an area b, then a handle is rotated to drive a threaded push rod to rotate, the threaded push rod and a second support plate move forwards due to the threaded connection between the threaded push rod and the first support plate, at the moment, the two support arms are distracted slowly by the two push-pull rods, so that the two distraction arms are distracted towards two sides until the incision at the spinal column is completely distracted, and at the moment, a doctor can perform an operation on the exposed spinal column.
This mechanism is when above-mentioned clinical use, owing to there is the screw thread push rod at other external force factors, reverse circling round under the influence of doctor or nurse maloperation or touch, so the adoption has the pawl at the tip of locking flexible support, after accomplishing two struts the portion and open, after accomplishing two arms of strutting and opening, under the effect of torsional spring on the locking flexible support, pawl and the mutual locking of screw thread push rod surface screw thread are fixed, avoid the screw thread push rod to take place the condition of reverse slip.
Because every patient's health quality condition is different, the backbone has the dark condition of shallowly at skin, can adjust from top to bottom at the first body of rod through the second body of rod this moment, make to prop open the pole and drive and prop open the arm and reach the edge of a knife bottom optimum position, then fix through lock nut, certainly because the edge of a knife opening of different patient backbone department also has inequality condition, so can rotate at the first body of rod through the second body of rod, adjust two and prop the contained angle between arm and two support arms, so that adapt to different edges of a knife, make the edge of a knife more easily propped open completely, expose in doctor's field of vision, be convenient for operate, and reduce patient's pain or uncomfortable sense.
When the spine surgery is performed, tissue fluid (mainly blood) at the spine is easy to slowly generate certain effusion, and the spine is used as a watershed, the tissue fluid is distributed in regions a and b and is located at the bottom of the distraction arm at the most, so the tissue fluid can enter the distraction arm through the through hole on the distraction arm at the moment, then the effusion is discharged in real time through the pump body of negative pressure drainage connected with the free end of the delivery pipe, the visual field of a doctor is prevented from being influenced, the surgery is convenient, no additional equipment is used for liquid suction during the liquid discharge process, the delivery pipe is located in the distraction arm, the two functions are integrated, the work of the delivery pipe and the work of the distraction arm are not interfered with each other, the liquid discharge is completed at one time, and the most thorough and the efficiency; of course, after the operation is finished, the medicine liquid for treatment can be added through the conveying pipe and is injected into the knife opening after the operation, and then the opening mechanism is taken down and sewed.
When the knife edge opening device is used, a plurality of groups of ring bodies (the specific number is set according to the situation) are uniformly spaced at the bottom of the opening arm, the ring bodies have the functions of firstly preventing the opening arm from slipping in the knife edge opening process, secondly preventing the through hole at the bottom of the opening arm from being incompletely contacted with the skin in the knife edge opening and avoiding blockage, and thirdly, because the outer side of the ring bodies is an arc surface of a light ring, the knife edge opening device can be used for hooking the bottom of the knife edge in the opening arm opening state without damaging the skin, so that the pain and the discomfort of a patient are greatly reduced.
When the mechanism is disassembled, the inverted teeth at the end part of the anti-loosening support are firstly pulled away from the surface of the threaded push rod, and then the steps are carried out reversely.
The distraction mechanism for the orthopedic spine surgical tissues is provided with the two distraction arms and the mechanism for controlling the distraction pieces of the distraction arms to be spread, namely the two distraction arms are driven to be spread by pushing the two support arms by the two push-pull rods, so that the incision can be slowly and softly distracted to expose the spine, and the spine can be operated.
Drawings
FIG. 1 is a prior art schematic view of a dissected skin exposing a spinal column.
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of an adjustment lever of the present invention;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is another schematic top view of the present invention.
In the figure: the device comprises a first support plate 1, a second support plate 2, a support arm 3, a strip-shaped through groove 4, a push-pull rod 5, an adjusting rod 6, an opening rod 7, an opening arm 8, a through hole 9, a ring body 10, a conveying pipe 11, a threaded push rod 12, a bearing 13, a handle 14, an anti-loosening support 15, a locking nut 16, a first rod body 17, a second rod body 18 and a spinal column 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution:
an opening mechanism for orthopedic spinal surgery tissues comprises a first support plate 1, a second support plate 2, a conveying pipe 11 and a threaded push rod 12, wherein support arms 3 are hinged to two ends of the first support plate 1, push-pull rods 5 are hinged to two ends of the second support plate 2, a strip-shaped through groove 4 is formed in the first support plate 1, the other end of each push-pull rod 5 is hinged to the front end of the strip-shaped through groove 4, an adjusting rod 6 perpendicular to the support arm 3 is installed at the front end of the support arm 3, an opening rod 7 is sleeved on each adjusting rod 6, an opening arm 8 is installed at the front end of each opening rod 7, the adjusting rods 6, the opening rods 7 and the opening arms 8 are hollow rods, the arms 8, the opening rods 7, the adjusting rods 6 (particularly, the first rod body 17 and the second rod body 18) are provided with a channel, so that the conveying pipe 11 is installed, and the joints of the ends of the conveying pipe 11 and the opening arms 8 are sealed, the supporting arm is characterized in that a through hole 9 is formed in the bottom of the opening arm 8, a plurality of groups of annular bodies 10 which are evenly spaced are further arranged at the bottom of the opening arm, the free end of the conveying pipe 11 is exposed, the other end of the conveying pipe penetrates through the front end of the supporting arm 3 and extends into the bottom through hole 9 in the opening arm 8 from the adjusting rod 6, the threaded push rod 12 penetrates through a threaded hole which is preset in the middle of the first supporting plate 1 and then is connected with the second supporting plate 2 in a rotating mode, a bearing 13 is installed on the second supporting plate 2, one end of the threaded push rod 12 is inserted into the bearing 13, a handle 14 with anti-skid grains is installed at the other end of the threaded push rod 12, and the.
The opening arm 8 is formed by bending a metal wire into an Contraband-shaped or U-shaped hollow pipe body with an outward opening.
The free end of the delivery pipe 11 is detachably connected with a negative pressure drainage device or an injection device, the negative pressure drainage device is a micro pump or a suction device similar to an ear suction ball, and the injection device is a medical injection pump or a syringe.
The adjusting rod 6 comprises a first rod body 17 and a second rod body 18, the second rod body 18 is movably inserted into the first rod body 17 and penetrates through the first rod body 17 through a locking nut 16 to lock and adjust the second rod body 18, the opening rod 7 is sleeved at the bottom of the second rod body 18, and the first rod body 17 is installed at the front end of the support arm 3.
The first support plate 1 is further hinged with an anti-loosening support 15 with a torsion spring, and the end of the anti-loosening support 15 is provided with inverted teeth locked with the surface threads of the threaded push rod 12. In the present invention, the proximal end of the arm 8 is a tip.
When the invention is used clinically, firstly, Contraband-shaped or U-shaped hollow tube bodies of two distraction arms 8, which are bent by metal wires into open outwards, are placed in the incision of the spine 19 and are respectively positioned at two sides of the spine 19, namely an area a and an area b, then the handle 14 is rotated to drive the threaded push rod 12 to rotate, the threaded push rod 12 and the second support plate 2 move forwards due to the threaded connection between the threaded push rod 12 and the first support plate 1, at the moment, the two support arms 3 are distracted slowly by the two push-pull rods 5, so that the two distraction arms 8 are distracted towards two sides until the incision at the spine 19 is completely distracted, and at the moment, a doctor can perform an operation on the exposed spine 19.
This mechanism is when above-mentioned clinical use, because there is screw thread push rod 12 at other external force factors, reverse circling round under the influence of doctor or nurse maloperation or touch, so adopt to have the pawl at the tip of locking support 15 that moves, after accomplishing two portions 8 that strut and open, after accomplishing two arms 8 that strut and open, under the effect of torsional spring on locking support 15, pawl and the mutual locking of screw thread push rod 12 surface screw thread are fixed, avoid screw thread push rod 12 to take place the condition of reverse slip.
Because the physical quality of each patient is different, the spine 19 has the dark condition of shallowly at the skin, can adjust from top to bottom at first body of rod 17 through the second body of rod 18 this moment, make the pole 7 that struts drive and strut arm 8 and reach the best position of edge of a knife bottom, then fix through lock nut 16, certainly because the edge of a knife opening of different patient spines 19 department also has inequality condition, so can adjust the contained angle between two arms 8 that strut and two support arms 3 through the rotation of second body of rod 18 at first body of rod 17, so as to adapt to different edges of a knife, make the edge of a knife more easily propped open completely, expose in doctor's field of vision, be convenient for the operation, and reduce patient's pain or uncomfortable sense.
When an operation is performed on the spine 19, certain effusion is easily and slowly generated by tissue fluid (mainly blood) at the spine 19, and the spine 19 is used as a watershed, the tissue fluid is distributed in regions a and b and is positioned at the bottom of the distraction arm 8 to the maximum extent, so the tissue fluid can enter the distraction arm 8 through the through hole 9 on the distraction arm 8, then the effusion is discharged in real time through the pump body for negative pressure drainage connected with the free end of the delivery pipe 11, the visual field of a doctor is prevented from being influenced, the operation is convenient, the fluid drainage does not need to be additionally carried out by equipment in the process, the two functions of the delivery pipe 11 positioned in the distraction arm 8 are integrated, the work of the two is not interfered with each other, the fluid drainage is completed at one time, and the operation is thorough and high in efficiency; of course, after the operation is finished, the medicine liquid for treatment can be added through the conveying pipe 11 and is injected into the knife opening after the operation, and then the opening mechanism is taken down and sewed.
In the invention, when the knife is used, a plurality of groups of ring bodies 10 (the specific number is set according to the situation) are uniformly spaced at the bottom of the opening arm 8, the ring bodies 10 have the functions of firstly preventing the opening arm 8 from slipping in the process of opening the knife edge, secondly enabling the through hole 9 at the bottom of the opening arm 8 not to be completely contacted with the skin in the knife edge and avoiding blockage, and thirdly, because the outer side of the ring bodies is an arc surface of a light ring, the skin can not be damaged under the condition that the bottom of the knife edge is hooked in the opening state of the opening arm 8, thereby greatly reducing the pain and discomfort of a patient.
When the mechanism is disassembled, the inverted teeth at the end part of the anti-loosening support 15 are firstly pulled away from the surface of the threaded push rod 12, and then the steps are carried out reversely.
The distraction mechanism for the orthopedic spine surgical tissues is provided with the two distraction arms 8 and a mechanism for controlling the distraction of the distraction arms 8, namely the two distraction arms 8 are driven to be spread by pushing the two support arms 3 through the two push-pull rods 5, so that the incision can be slowly and softly distracted, the spine 19 can be exposed, and the operation on the spine 19 can be performed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A distraction mechanism for orthopedic spinal surgery tissue, comprising a first plate (1), a second plate (2), a delivery tube (11) and a threaded push rod (12), characterized in that: the support arm structure is characterized in that support arms (3) are hinged to two ends of a first support plate (1), push-pull rods (5) are hinged to two ends of a second support plate (2), strip-shaped through grooves (4) are formed in the first support plate (1), the other ends of the push-pull rods (5) are hinged to the front ends of the strip-shaped through grooves (4), adjusting rods (6) perpendicular to the support arms are mounted at the front ends of the support arms (3), opening rods (7) are sleeved on the adjusting rods (6), opening arms (8) are mounted at the front ends of the opening rods (7), the adjusting rods (6), the opening rods (7) and the opening arms (8) are hollow rods, through holes (9) are formed in the bottoms of the opening arms (8), groups of annular bodies (10) are uniformly spaced at the bottoms of the through holes, the free ends of conveying pipes (11) are exposed, the other ends of the conveying pipes penetrate through the front ends of the support arms (3), and extend into the through holes (9) in the opening arms (8) from the adjusting, the thread push rod (12) penetrates through a threaded hole preset in the middle of the first support plate (1) and then is rotatably connected with the second support plate (2), the outer side of the annular body (10) is an arc surface of a halo, the adjusting rod (6) comprises a first rod body (17) and a second rod body (18), the second rod body (18) is movably inserted into the first rod body (17) and penetrates through the first rod body (17) through a locking nut (16) to lock and adjust the second rod body (18), the opening rod (7) is sleeved at the bottom of the second rod body (18), the first rod body (17) is installed at the front end of the support arm (3), the first rod body (17) is adjusted up and down through the second rod body (18), so that the opening rod (7) drives the opening arm (8) to reach the optimal position of the bottom of the knife edge, then the opening arm is fixed through the locking nut (16), and rotates on the first rod body (17) through the second rod body (18), the included angle between the two opening arms (8) and the two support arms (3) is adjusted so as to adapt to different knife edges, and the knife edges are more easily and completely opened.
2. A distraction mechanism for orthopedic spinal surgical tissue according to claim 1, wherein: the opening arm (8) is bent by a metal wire into an Contraband-shaped or U-shaped hollow pipe body with an outward opening.
3. A distraction mechanism for orthopedic spinal surgical tissue according to claim 1, wherein: the free end of the conveying pipe (11) is detachably connected with negative pressure drainage equipment or injection equipment.
4. A distraction mechanism for orthopedic spinal surgical tissue according to claim 1, wherein: and a bearing (13) is installed on the second support plate (2), one end of the threaded push rod (12) is inserted into the bearing (13), and a handle (14) with anti-skid threads is installed at the other end of the threaded push rod.
5. A distraction mechanism for orthopedic spinal surgical tissue according to any of claims 1 to 4, wherein: the first support plate (1) is further hinged with an anti-loosening support (15) with a torsion spring, and the end of the anti-loosening support (15) is provided with inverted teeth locked with the surface threads of the threaded push rod (12).
CN201910651122.XA 2019-07-18 2019-07-18 A strut mechanism for orthopedics backbone operation tissue Expired - Fee Related CN110215244B (en)

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CN112545590B (en) * 2020-12-10 2022-01-18 中南大学湘雅医院 Surgical clinical operation is with leading out device

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