CN106419977A - Universal automatic spinal retractor - Google Patents

Abstract

The invention relates to a general-purpose automatic spinal hook device, which is composed of an operating bed fixing device, a hook fixing device and a pulling hook, and the operating bed fixing device is composed of a fixed clamping part, a connecting pipe, a movable clamping The main control knob, the control rod of the movable clamping part, the movable clamping part, the connecting pipe sleeve, the hook fixing device sleeve, and the eccentric control rod are composed. It consists of a fixed end, a hook knob, and a control knob of a joint tube. Its advantages are as follows: the automatic spine retractor device of the present invention is fixed on the operating bed, and can flexibly replace the human hand to pull the retractor. Each hook blade is connected and fixed to the bed body through a quick release device, and can be used as a single piece or as two pieces at the same time. And in order to meet the needs of various surgical procedures in spinal surgery, it is equipped with various detachable blades.

Description

Universal spinal automatic retractor

technical field

The invention relates to the technical field of medical instruments, in particular to a universal automatic retractor for the spine.

Background technique

Traditional spinal surgery usually requires the chief surgeon and 2-3 assistants to complete the work together, and the work of the assistants is mainly to help reveal the surgical field of view through retractors. With the advent of automatic retractors, the number of assistants required for surgery has gradually decreased. However, the currently commonly used automatic retractors in clinical practice are mainly two-piece spreaders. By pulling the paraspinal muscles to the left and right sides at the same time, the tension in the skin, soft tissues, and paravertebral muscles is very high, which increases the intramuscular pressure and reduces muscle tension. Intravascular blood flow, leading to muscle degeneration, ischemic necrosis and postoperative muscle atrophy, degeneration, causing postoperative pain and fever and other adverse reactions. Moreover, the current automatic retractor lacks fixation with the operating bed. When pulling some parts with inconsistent tension on both sides, such as the tracheoesophageal sheath on one side of the cervical spine and the carotid sheath on the other, it is often pushed to one side. The general-purpose automatic spine retractor designed by this patent, each retractor blade is connected and fixed with the bed body through a quick-release device, and can be used as a single piece or as two pieces at the same time. And in order to meet the needs of various surgical procedures in spinal surgery, it is equipped with various detachable blades.

Chinese patent document CN103190936A discloses an automatic hook device for minimally invasive anterior spinal cervical and thoracic surgery. The fixing ring is provided with a one-way limiting mechanism that restricts the sliding of the connecting rod to the center of the fixing ring. The one-way limiting mechanism includes: The lock buckle hinged with the fixed ring, and the one-way limiter that rotates in one direction with the lock buckle, one end of the lock buckle is engaged with the first adjusting rack, and the lock buckle is connected with a and a rotary reset member snapped together with the first adjusting rack. Chinese patent document CN204683678U discloses a new spinal lamina retractor with a built-in cold light source, which includes a retractor tip, a handle and an optical fiber body. Chinese patent document CN103767745A discloses an anterior cervical automatic retractor system, which includes a vertebral body distraction component, a retractor component and a connection fixation component. But there is no report yet about the universal spinal automatic retractor of the present invention.

Contents of the invention

The object of the present invention is to provide a universal automatic retractor for the spine to address the deficiencies in the prior art.

In order to achieve the above object, the technical solution adopted by the present invention is: an automatic spinal retractor device, which is composed of an operating bed fixing device, a retractor fixing device and a retractor;

The operating bed fixing device is composed of a fixed clamping part, a connecting pipe, a control knob of the movable clamping part, a control rod of the movable clamping part, a movable clamping part, a connecting pipe sleeve, a hook fixing device cover, and an eccentric control rod;

The upper end of the fixed clamping part is connected with the connecting pipe, the upper end of the connecting pipe is threadedly connected with the control knob of the movable clamping part, the control knob of the movable clamping part is connected with the control rod of the movable clamping part, and the control rod of the movable clamping part passes through the connecting pipe to reach The movable clamping part, the rotating connection between the movable clamping part and the fixed clamping part;

The connecting pipe is covered with a connecting sleeve, the connecting sleeve is connected with the draw hook fixing device sleeve, the draw hook fixing device sleeve has a channel for inserting the draw hook fixing device, and the draw hook fixing device sleeve is connected with the eccentric control rod;

The hook fixing device is composed of a hook fixing tube, a fixing device connecting rod, a control rope, a joint tube, a hook fixing end, a hook knob, and a joint tube control knob;

The hook fixing tube is connected with the connecting rod of the fixing device. The connecting rod of the fixing device can be inserted into the corresponding channel of the hook fixing device sleeve. Hemisphere, the hemisphere of the joint tube of the last section is inserted into the upper opening of the joint tube of the previous section, the joint tube of the last section is connected with the fixed end of the draw hook, and the fixed end of the draw hook is provided with a draw hook knob; the lower end of the draw hook fixed tube is connected with the The joint pipe control knob is threaded, the joint pipe control knob is connected with the control rope, the control rope passes through the hook fixing pipe, the joint pipe, and then connects with the hook fixed end;

The tail end of the drag hook has a groove or an opening.

Preferably, the connecting pipe is provided with a ring of protrusions above and below the connecting sleeve to limit the range of the connecting sleeve moving up and down.

Preferably, the sleeve of the draw hook fixing device can rotate around the connecting pipe sleeve.

Preferably, the connecting pipe is sheathed with two connecting sleeves, one connecting sleeve is connected with a draw hook fixing device sleeve, and one draw hook fixing device sleeve is connected with an eccentric control rod.

Preferably, the retractors include bone hooks, lamina retractors, cervical retractors, and vertebral body lateral retractors.

Preferably, the drag hook includes two kinds of bone hooks: the front end of bone hook one is bent upwards to form blades, the blades are curved, and the blades protrude toward the side of the tail end of bone hook one; the front end of bone hook two is bent upwards to form blades , the blade is flat.

Preferably, the drag hooks include two kinds of cervical vertebra drag hooks: the front end of cervical vertebra retractor 1 is an S-shaped or semi-S-shaped blade; Fold to form a chamfer.

Preferably, the bone hook includes four kinds of lamina retractors: the front end of the lamina retractor 1 forms a blade vertically upwards, and the head end of the blade forms a pointed end away from the tail end of the lamina retractor 1; the front end of the lamina retractor 2 bends upwards Folded to form a blade, the head of the blade forms a tooth facing the tail end of the lamina hook 2; the front end of the lamina hook 3 is bent downward to form a blade, the middle section of the blade is wide and concave downward, and the head of the blade is narrow A smooth, smooth head; the front end of the lamina hook four is bent upwards to form a blade, the blade is a plane, the middle section of the blade is wider, and the head section of the blade forms a groove.

Preferably, the middle section of the lateral retractor of the vertebral body is an arch-bridge-shaped leaf, the head of the leaf is narrow and smooth, and there is a short tube on the leaf.

The present invention has the advantage that:

1. The automatic spine retractor device of the present invention is fixed on the operating bed, and can flexibly replace the human hand to hold the retractor.

2. Each retractor blade of the automatic spine retractor device of the present invention is connected and fixed to the bed body through a quick release device, and can be used as a single sheet or as two sheets at the same time. And in order to meet the needs of various surgical procedures in spinal surgery, it is equipped with various detachable blades.

Description of drawings

Accompanying drawing 1 is the structural representation of operating bed fixing device.

Accompanying drawing 2 is the structure diagram of the drag hook fixing device.

Accompanying drawing 3 is a structural schematic diagram of a bone hook.

Accompanying drawing 4 is a structural schematic diagram of a bone hook.

Accompanying drawing 5 is a structural schematic diagram of a cervical retractor.

Accompanying drawing 6 is a structural schematic diagram of a cervical retractor.

Accompanying drawing 7 is a structural schematic diagram of a lamina retractor.

Accompanying drawing 8 is a structural schematic diagram of a lamina retractor.

Accompanying drawing 9 is a structural schematic diagram of a lamina retractor.

Accompanying drawing 10 is a structural schematic diagram of a lamina retractor.

Accompanying drawing 11 is a kind of structure diagram of vertebral body side drag hook.

detailed description

The specific embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

The reference signs and components involved in the accompanying drawings are as follows:

101. Fixed clamping part

102. Connecting pipe

103. Control knob of movable clamping part

104. Control rod of movable clamping part

105. Movable clamping part

106. Raised

107. Connecting sleeve

108. Pull hook fixing device cover

109. Eccentric control lever

201. Pull hook fixing tube

202. Fixing device connecting rod

203. Control Rope

204, joint tube

205. Pull hook fixed end

206. Hook knob

207. Joint tube control knob

301、Bone Hook One

302. Bone Hook II

311. Cervical Retractor 1

312. Cervical Retractor 2

321 Lamina hook one

322 Lamina retractor 2

323 Lamina hook three

324 Lamina retractor 4

331, lateral retractor of vertebral body

Please refer to accompanying drawings 1 to 11, accompanying drawing 1 is a schematic diagram of the operating bed fixing device, accompanying drawing 2 is a schematic diagram of the retractor fixing device, and accompanying drawings 3 to 11 are schematic diagrams of the retractor.

The universal automatic spinal hook device of the present invention is composed of an operating bed fixing device, a pulling hook fixing device and a pulling hook. The operating bed fixing device is fixed on the operating bed etc., the operating bed fixing device is connected with the draw hook fixing device, and the draw hook fixing device is connected with the draw hook. The present invention includes multiple types of retractors such as bone hooks, cervical vertebra retractors, vertebral plate retractors, vertebral body lateral retractors and the like.

Embodiment 1 Operating bed fixing device

Please refer to accompanying drawing 1, accompanying drawing 1 is the schematic diagram of operating bed fixing device.

The operating bed fixing device is composed of a fixed clamping part 101, a connecting pipe 102, a movable clamping part control knob 103, a movable clamping part control rod 104, a movable clamping part 105, a protrusion 106, a connecting sleeve 107, and a pull hook. The fixing device cover 108 and the eccentric control rod 109 are formed.

The upper end of the fixed clamping part 101 is connected with the connecting pipe 102 , and the upper end of the connecting pipe 102 is screwed with the control knob 103 of the movable clamping part. The inside of the movable clamping part control knob 103 is connected with the movable clamping part control rod 104, the movable clamping part control rod 104 passes through the connecting pipe 102 and reaches the movable clamping part 105, and the connection between the movable clamping part 105 and the fixed clamping part 101 rotating connection. Preferably, a torsion spring is further provided between the movable clamping part 105 and the fixed clamping part 101 . The doctor adjusts the size of the opening between the fixed clamping part 101 and the movable clamping part 105 by adjusting the movable clamping part control knob 103, and the torsion spring makes the opening between the fixed clamping part 101 and the movable clamping part 105 narrow. energy of.

The connecting pipe 102 is covered with a connecting pipe sleeve 107, and the connecting pipe 102 is respectively provided with a ring of protrusions above and below the connecting pipe sleeve 107 to limit the range of the connecting pipe sleeve 107 moving up and down. The connecting sleeve 107 is connected with the draw hook fixing device cover 108, the draw hook fixing device cover 108 can rotate around the connecting sleeve 107, the draw hook fixing device cover 108 has a passage for inserting the draw hook fixing device, and the draw hook fixing device cover 108 is connected with the eccentric control rod 109 . As shown in accompanying drawing 1, when the eccentric control rod 109 faces upwards, the doctor can easily insert the pull rod fixing rod into the pull hook fixing device sleeve 108, and can move up and down or rotate the connecting tube sleeve 107, and the pull hook fixing device sleeve 108 can be rotated. ; When the eccentric control lever 109 is down, the connecting pipe sleeve 107, the draw hook fixing device cover 108, and the draw hook fixing device positions are locked.

Preferably, a connecting pipe 102 of the operating bed fixing device is provided with two sets of connecting pipe sleeves 107, a draw hook fixing device cover 108, and an eccentric control rod 109, so that one operating bed fixing device can connect two draw hook fixing devices, and then Attach the two hooks.

Embodiment 2 Pull hook fixing device

Please refer to accompanying drawing 2, accompanying drawing 2 is the schematic diagram of drag hook fixing device.

The draw hook fixing device is composed of a draw hook fixing tube 201, a fixing device connecting rod 202, a control rope 203, a joint tube 204, a draw hook fixed end 205, a draw hook knob 206, and a joint tube control knob 207.

The hook fixing tube 201 is connected with the fixing device connecting rod 202 , and the fixing device connecting rod 202 can be inserted into the corresponding channel of the pulling hook fixing device sleeve 108 . The upper end of the retractor fixing tube 201 is connected with multiple (≥2) joint tubes 204 in sequence, the lower end of the joint tube 204 is a hemisphere with a hole, and the inner side wall of the upper end opening of the joint tube 204 is relatively smooth, and the joint tube 204 of the last section The hemisphere is inserted into the upper opening of the joint tube 204 of the previous section, and the joint tube 204 of the latter section can rotate at a certain angle around the joint tube 204 of the previous section. The joint tube 204 of the last section is connected with the draw hook fixed end 205 , and the draw hook knob 206 is arranged on the draw hook fixed end 205 . The draw hook has a corresponding groove or opening, which can be inserted into the draw hook fixed end 205 and locked by the draw hook knob 206 . The lower end of the draw hook fixing pipe 201 is threadedly connected with the joint pipe control knob 207, and the joint pipe control knob 207 is connected with the control rope 203. When the joint tube control knob 207 is loose, the joint tube 204 can be adjusted like a finger joint. After the joint tube 204 is adjusted, the shape of the joint tube 204 can be fixed by tightening the joint tube control knob 207 .

Embodiment 3 bone hook one

Please refer to accompanying drawing 3, accompanying drawing 3 is the structure diagram of the bone hook of this embodiment.

The tail end of the bone hook 301 has a groove for connecting the hook fixing device. The front end of the bone hook 301 is bent upwards to form a blade.

Bone hook 1 301 includes the following models: 60×20, 80×20, 100×30, 120×30, 140×40, 160×40, 180×50, 200×50, unit: mm, the former is the blade length, the rear The one is the blade width.

Embodiment 4 bone hook two

Please refer to accompanying drawing 4, accompanying drawing 4 is the structure diagram of the bone hook of this embodiment.

The tail end of the bone hook 2 302 has a groove for connecting the hook fixing device. The front end of the bone hook 2 302 is bent upward to form a blade, which is a plane.

Bone hook 2 302 includes the following models: 60×20, 80×20, 100×25, 120×25, 140×30, 160×30, 180×35, 200×35, unit: mm, the former is the blade length, the rear The one is the blade width.

Embodiment 5 Cervical vertebra retractor one

Please refer to accompanying drawing 5, which is a structural schematic diagram of the cervical retractor of this embodiment.

The tail end of the cervical vertebra retractor 1 311 has a groove for connecting the retractor fixing device, and the front end of the cervical vertebra retractor 1 311 is an S-shaped or semi-S-shaped blade.

Cervical retractor-311 has a variety of models, the preferred blade width: 25mm

Embodiment 6 Cervical vertebra retractor 2

Please refer to accompanying drawing 6, which is a structural schematic diagram of the cervical retractor of this embodiment.

The tail end of the cervical vertebra retractor 2 312 has a groove for connecting the retractor fixing device. The front end of the cervical vertebra retractor 2 312 is vertically upward to form a blade, and the head end of the blade is bent toward the tail end of the cervical vertebra retractor 2 312 to form a knuckle.

Cervical retractor 312 has a variety of models, the preferred blade width: 26mm

Embodiment 7 Lamina hook one

Please refer to accompanying drawing 7, which is a structural schematic diagram of the laminar retractor of this embodiment.

The tail end of the lamina hook 1 321 has a groove for connecting the hook fixing device. The front end of the lamina drag hook 1 321 forms a blade vertically upwards, and the head end of the blade forms a pointed end away from the tail end of the lamina drag hook 1 321.

Lamina retractor 1 includes the following models: 60×23, 80×32, 100×32, unit: mm, the former is the length of the blade, and the latter is the width of the blade.

Embodiment 8 Lamina hook two

Please refer to accompanying drawing 8, which is a structural schematic diagram of the cervical retractor of this embodiment.

The tail end of the second laminar hook 322 has a groove, which is used to connect the hook fixing device.

Lamina retractor 2 has the following models: 60×30, 80×40, 100×50, 120×60, unit: mm, the former is the length of the blade, and the latter is the width of the blade.

Embodiment 9 Lamina retractor three

Please refer to accompanying drawing 9, which is a structural schematic diagram of the laminar retractor of this embodiment.

The tail end of the lamina hook 3 323 has a groove, which is used to connect the hook fixing device. The front end of the lamina hook 3 323 is slightly bent downward to form a blade. The head ends with a narrow, rounded head.

Embodiment 10 Lamina retractor four

Please refer to accompanying drawing 10, which is a structural schematic diagram of the laminar retractor of this embodiment.

The tail end of the four lamina hooks 324 has a groove for connecting the hook fixing device, and the front end of the four lamina drag hooks 324 is bent upwards to form a blade, the blade is a plane, the middle section of the blade is wider, and the head section of the blade forms a groove.

Embodiment 11 Vertebral Body Side Retractor

Please refer to accompanying drawing 11, accompanying drawing 11 is the structure schematic diagram of the lateral retractor of the vertebral body in this embodiment.

The tail end of the vertebral body side drag hook 331 has a groove for connecting the drag hook fixing device. The middle section of the vertebral body side drag hook 331 is an arch bridge-shaped blade, and the head end of the blade is a narrow, smooth head. There is a short tube on the arch bridge-shaped blade of the vertebral body side drag hook 331, which can accommodate the suction device.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the method of the present invention, some improvements and supplements can also be made, and these improvements and supplements should also be considered Be the protection scope of the present invention.

Claims (9)

1. a kind of spinal column automatic drag hook device it is characterised in that described spinal column automatic drag hook device by operation table fixing device, Retractor fixing device and drag hook composition；

Described operation table fixing device is controlled by stationary gripping part, connecting tube, movable clamping part control handle, movable clamping part Bar, movable clamping part, connecting pipe box, retractor fixing device set, eccentricity control bar composition；

The upper end of stationary gripping part is connected with connecting tube, is threadeded with movable clamping part control handle in connecting tube upper end, activity Clamping part control handle is connected with movable clamping part control bar, and movable clamping part control bar arrives at activity clamping through connecting tube Portion, rotates between movable clamping part and stationary gripping part and is connected；

Connecting pipe box are cased with connecting tube, connecting pipe box are connected with retractor fixing device set, and retractor fixing device set has insertion The passage of retractor fixing device, retractor fixing device set is connected with eccentricity control bar；

Described retractor fixing device by drag hook fixing pipe, fixing device connecting rod, tricing line, articulated pipe, drag hook fixing end, draw Hook knob, articulated pipe control handle composition；

Drag hook fixing pipe is connected with fixing device connecting rod, and fixing device connecting rod may be inserted into the corresponding of retractor fixing device set Passage, the upper end of drag hook fixing pipe is sequentially connected with multiple articulated pipes, and the lower end of articulated pipe is the semi-round ball of perforate, later section The semi-round ball of articulated pipe inserts the upper end open of the articulated pipe of previous section, and the articulated pipe of final section is connected with drag hook fixing end, Drag hook fixing end is provided with drag hook knob；Threadeded with articulated pipe control handle in the lower end of drag hook fixing pipe, articulated pipe controls Knob is connected with tricing line, and tricing line passes through drag hook fixing pipe, articulated pipe, is then connected with drag hook fixing end；

Described drag hook tail end has groove or perforate.

2. spinal column automatic drag hook device according to claim 1 is it is characterised in that described connecting tube is in connecting pipe box Above and below to be respectively provided with a circle raised, to limit the scope that connecting pipe box move up and down.

3. spinal column automatic drag hook device according to claim 1 is it is characterised in that described retractor fixing device set can be around Connecting pipe box rotation.

4. spinal column automatic drag hook device according to claim 1 is it is characterised in that be cased with two companies in described connecting tube Adapter set, connecting pipe box are connected with a retractor fixing device set, and a retractor fixing device covers and an eccentricity control Bar connects.

5. spinal column automatic drag hook device according to claim 1 is it is characterised in that described drag hook includes hamulus of hamate bone, vertebral plate Drag hook, cervical vertebra drag hook, vertebral body side drag hook.

6. spinal column automatic drag hook device according to claim 5 is it is characterised in that described drag hook includes two kinds of hamuluss of hamate bone： The front end of hamulus of hamate bone one is folded upward at forming blade, and blade is curved surface, and blade is raised towards the side of hamulus of hamate bone one tail end；Hamulus of hamate bone two Front end is folded upward at forming blade, and blade is plane.

7. spinal column automatic drag hook device according to claim 5 is it is characterised in that described drag hook includes two kinds of cervical vertebras draws Hook：The front end of cervical vertebra drag hook one is the blade of S type or half S type；The front end of cervical vertebra drag hook two forms blade, blade vertically upward Head end be bent to form knuckle towards the tail end of cervical vertebra drag hook two.

8. spinal column automatic drag hook device according to claim 5 is it is characterised in that described hamulus of hamate bone includes four kinds of vertebral plates draws Hook：The front end of laminectomy retractor one forms blade vertically upward, and the head end of blade forms the tip of the tail end deviating from laminectomy retractor one； The front end of laminectomy retractor two is folded upward at being formed blade, and the head end of blade forms the tooth of the tail end towards laminectomy retractor two；Vertebral plate The front end of drag hook three is bent to form downwards blade, and the stage casing of blade is wider and the curved surface of concave downward, and the head end of blade is narrow , round and smooth head；The front end of laminectomy retractor four is folded upward at forming blade, and blade is plane, and the stage casing of blade is wider, blade Head section forms groove.

9. spinal column automatic drag hook device according to claim 5 is it is characterised in that the stage casing of described vertebral body side drag hook For arch-shaped blade, the head end of blade is narrow, round and smooth head, and blade has a short tube.