CN213345780U - Nerve retractor - Google Patents
Nerve retractor Download PDFInfo
- Publication number
- CN213345780U CN213345780U CN202021860468.5U CN202021860468U CN213345780U CN 213345780 U CN213345780 U CN 213345780U CN 202021860468 U CN202021860468 U CN 202021860468U CN 213345780 U CN213345780 U CN 213345780U
- Authority
- CN
- China
- Prior art keywords
- rod
- rotating shaft
- hole
- rod body
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000005036 nerve Anatomy 0.000 title claims abstract description 23
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 210000001951 dura mater Anatomy 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a nerve retractor. The method comprises the following steps: the handle is provided with a connecting rod at the front end, a slot is arranged at the front end of the connecting rod, a first side wall and a second side wall are respectively arranged on two sides of the slot, and a first through hole and a second through hole which correspond to each other are respectively arranged on the first side wall and the second side wall; one end of the supporting rod is provided with a connecting part which is rotatably connected with the connecting rod, and the other end of the supporting rod is provided with a drag hook; the first rotating shaft and the second rotating shaft are arranged on the connecting part; the compression spring is sleeved on the second rotating shaft; the plurality of limiting holes are formed in the periphery of the first through hole; and the limiting convex columns are arranged on the connecting parts and are used for being selectively matched with the limiting holes. The utility model has the advantages that: the device is provided with a connecting rod and a supporting rod, and the angles of the connecting rod and the supporting rod can be adjusted; the supporting rod is a length adjustable rod and is suitable for positions with different depths; the first rod body is flat, small in size and free of sight shielding.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to nerve drag hook.
Background
In lumbar vertebra posterior surgery (lumbar decompression fusion, lumbar discectomy), in the process of performing discectomy, endplate treatment and intervertebral fusion on the dural sac and the ventral side of a nerve root, a dura mater and the nerve root need to be pulled to one side so as to protect the nerve root and the dural sac and fully expose an operation space. Because of individual difference of patients, the depth and the angle of the nerve root and the dura mater sac from the skin are greatly different, the traditional nerve retractor has fixed depth and angle, and the operation is difficult in the process of drawing and protecting the nerve root and the dura mater sac in some cases. At present, the traditional and multifunctional nerve retractor in the market is too large in size, shields the visual field of an operation, is not beneficial to operation, and can easily clamp and damage nerve roots and a dura mater sac in the process of implanting the intervertebral fusion device. At present, the automatic distraction nerve retractor exists, but the lumbar vertebra operation mode and the operation approach are various and tend to be minimally invasive, so that the fixed point cannot be met, and most lumbar vertebra operation modes are not practical.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a nerve drag hook, it is equipped with connecting rod and bracing piece, the angularly adjustable of connecting rod and bracing piece.
In order to achieve the above object, the utility model adopts the following technical scheme, include:
the handle is provided with a connecting rod at the front end, a slot is arranged at the front end of the connecting rod, a first side wall and a second side wall are respectively arranged on two sides of the slot, and a first through hole and a second through hole which correspond to each other are respectively arranged on the first side wall and the second side wall;
one end of the supporting rod is provided with a connecting part which is rotatably connected with the connecting rod, and the other end of the supporting rod is provided with a drag hook;
the first rotating shaft and the second rotating shaft are oppositely arranged on the upper end surface and the lower end surface of the connecting part; the first rotating shaft penetrates through the first through hole and at least partially extends out of the first through hole; the second rotating shaft penetrates through the second through hole; a first stop block and a second stop block are respectively arranged at the tail ends of the first rotating shaft and the second rotating shaft;
the compression spring is sleeved on the second rotating shaft, one end of the compression spring is abutted with the connecting part, and the other end of the compression spring is abutted with the second side wall;
the limiting holes penetrate through the first side wall and are uniformly distributed on the periphery of the first through hole;
the limiting convex columns are arranged on the connecting parts and are used for being selectively matched with the limiting holes so as to lock the angles of the connecting rods and the supporting rods;
the first rotating shaft extends out of the part of the first through hole, and the length of the first rotating shaft is larger than that of the limiting convex column.
Preferably, the support rod is a length adjustable rod.
Preferably, the support rod includes:
the front end of the first rod body is provided with a drag hook, and the tail end of the first rod body is provided with a spring pin;
the second rod body is sleeved on the periphery of the first rod body, a connecting part which is rotatably connected with the connecting rod is arranged at the tail end of the second rod body, and a plurality of open holes are uniformly distributed on the second rod body along the axial direction;
wherein, the spring catch with a plurality of trompils optional cooperation, and then the length of the bracing piece is fixed.
Preferably, the first rod body is flat, the width of the first rod body is 1-2 mm, and the thickness of the first rod body is 0.2-0.5 mm.
Preferably, the handle is provided with a non-slip thread.
Preferably, the method further comprises the following steps: and the scale marks are arranged on the periphery of the first through hole and used for indicating the angle between the connecting rod and the supporting rod.
Preferably, an indication arrow is arranged at the tail end of the second rod body, the indication arrow is arranged along the axial direction of the second rod body, and the front end of the indication arrow points to the center of the first rotating shaft.
The utility model has the advantages that: the device is provided with a connecting rod and a supporting rod, and the angles of the connecting rod and the supporting rod can be adjusted; the supporting rod is a length adjustable rod and is suitable for positions with different depths; the first rod body is flat, 1-2 mm wide, 0.2-0.5 mm thick, small and does not obstruct the sight.
Drawings
Fig. 1 is a perspective view of the nerve retractor of the utility model.
Fig. 2 is an enlarged view of the slot in the utility model.
Fig. 3 is a schematic view of the connection portion in the utility model.
Fig. 4 is a sectional view of the utility model middle support rod.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-4, an implementation form of the present invention, in order to achieve the above object, adopts the following technical solution, including:
the handle 110 is made of metal or polymer material, a connecting rod 111 is arranged at the front end of the handle 110, a slot 112 is arranged at the front end of the connecting rod 111, a first side wall 113 and a second side wall 114 are respectively arranged at two sides of the slot 112, and a first through hole 113a and a second through hole 114a which correspond to each other are respectively arranged on the first side wall 113 and the second side wall 114. Preferably, the handle 110 is made of a polytetrafluoroethylene material. It is further preferred that a rounded structure for easy grip is provided at the distal end of the handle 110.
One end of the support rod 120 is provided with a connecting portion 130 for rotatably connecting with the connecting rod, and the other end is provided with a hook 140. Preferably, the support rod 120 is a length adjustable rod. As a further preference, the support bar includes: the front end of the first rod body 121 is provided with a drag hook, and the tail end is provided with a spring pin 121 a; the second rod body 122 is sleeved on the periphery of the first rod body 121, a connecting part 130 for rotatably connecting with the connecting rod is arranged at the tail end of the second rod body 122, and a plurality of open holes 122a are uniformly distributed on the second rod body 122 along the axial direction; wherein the spring pins 121a are selectively engaged with the plurality of openings 122a, thereby fixing the length of the support rod 120.
The first rotating shaft 131 and the second rotating shaft 132 are oppositely arranged on the upper end surface and the lower end surface of the connecting part 130; the first rotating shaft 131 penetrates through the first through hole 113a and at least partially extends out of the first through hole 113 a; the second shaft 132 passes through the second through hole 114 a. Preferably, a first stopper 131a and a second stopper 132a are respectively provided at the ends of the first rotating shaft 131 and the second rotating shaft 132. More preferably, the first stopper 131a is provided with a rounded structure. The compression spring 133 is sleeved on the second rotating shaft 132, one end of the compression spring abuts against the connecting part, and the other end of the compression spring abuts against the second side wall; a plurality of limiting holes 113b penetrate through the first side wall 113 and are uniformly distributed on the periphery of the first through hole 113 a; the limiting convex columns 134 are arranged on the connecting part 130 and are used for being selectively matched with the limiting holes 113b so as to lock the angles of the connecting rod 111 and the supporting rod 120; the first shaft 131 extends out of the first through hole 113a, and the length of the first shaft is greater than that of the limiting convex column 134. Preferably, the number of the plurality of limiting holes 113b is 36.
In the using process, the first stop 131a is pressed down to completely withdraw the limiting convex column 134 from the limiting hole 113b, then the supporting rod 120 is rotated to adjust to a required angle, the first stop 131a is released to insert the limiting convex column 134 into the corresponding limiting hole 113b, and the angle is locked. Then, the spring pin 121a is pressed down, the first rod 121 is pulled, the position of the first rod 121 in the second rod 122 is adjusted, and after the proper position is adjusted, the spring pin 121a is ejected from the corresponding opening 122a, and the length of the support rod 120 is locked, so that the support rod can be used.
In another embodiment, the support rod 120 is a length adjustable rod.
In another embodiment, the support bar 120 includes: the front end of the first rod body 121 is provided with a drag hook, and the tail end is provided with a spring pin 121 a; the second rod body 122 is sleeved on the periphery of the first rod body 121, a connecting part 130 for rotatably connecting with the connecting rod is arranged at the tail end of the second rod body 122, and a plurality of open holes 122a are uniformly distributed on the second rod body 122 along the axial direction; wherein the spring pins 121a are selectively engaged with the plurality of openings 122a, thereby fixing the length of the support rod 120.
In another embodiment, the first rod 121 is flat, has a width of 1 to 2mm and a thickness of 0.2 to 0.5 mm.
In another embodiment, anti-slip threads 115 are provided on the handle 110. Preferably, a rounded structure is provided at the distal end of the handle 110 to facilitate gripping.
In another embodiment, the method further comprises: and scale marks 113c arranged on the periphery of the first through hole for indicating the angle between the connecting rod and the supporting rod.
In another embodiment, an indication arrow 122b is disposed at the end of the second rod 122, and the indication arrow is disposed along the axial direction of the second rod 122, and the front end of the indication arrow points to the center of the first rotating shaft 131.
To sum up, the nerve retractor 1 of the utility model is provided with a connecting rod 111 and a supporting rod 120, and the angles of the connecting rod 111 and the supporting rod 120 can be adjusted; the supporting rod 120 is a length-adjustable rod, and is suitable for positions with different depths; the first rod body 121 is flat, 1-2 mm wide, 0.2-0.5 mm thick, small and does not obstruct the view.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (7)
1. A nerve retractor, comprising:
the handle is provided with a connecting rod at the front end, a slot is arranged at the front end of the connecting rod, a first side wall and a second side wall are respectively arranged on two sides of the slot, and a first through hole and a second through hole which correspond to each other are respectively arranged on the first side wall and the second side wall;
one end of the supporting rod is provided with a connecting part which is rotatably connected with the connecting rod, and the other end of the supporting rod is provided with a drag hook;
the first rotating shaft and the second rotating shaft are oppositely arranged on the upper end surface and the lower end surface of the connecting part; the first rotating shaft penetrates through the first through hole and at least partially extends out of the first through hole; the second rotating shaft penetrates through the second through hole; a first stop block and a second stop block are respectively arranged at the tail ends of the first rotating shaft and the second rotating shaft;
the compression spring is sleeved on the second rotating shaft, one end of the compression spring is abutted with the connecting part, and the other end of the compression spring is abutted with the second side wall;
the limiting holes penetrate through the first side wall and are uniformly distributed on the periphery of the first through hole;
the limiting convex columns are arranged on the connecting parts and are used for being selectively matched with the limiting holes so as to lock the angles of the connecting rods and the supporting rods;
the first rotating shaft extends out of the part of the first through hole, and the length of the first rotating shaft is larger than that of the limiting convex column.
2. The nerve retractor according to claim 1, wherein: the supporting rod is a length adjustable rod.
3. The nerve retractor according to claim 2, wherein the support bar comprises:
the front end of the first rod body is provided with a drag hook, and the tail end of the first rod body is provided with a spring pin;
the second rod body is sleeved on the periphery of the first rod body, a connecting part which is rotatably connected with the connecting rod is arranged at the tail end of the second rod body, and a plurality of open holes are uniformly distributed on the second rod body along the axial direction;
wherein, the spring catch with a plurality of trompils optional cooperation, and then the length of the bracing piece is fixed.
4. The nerve retractor according to claim 3, wherein: the first rod body is flat, the width of the first rod body is 1-2 mm, and the thickness of the first rod body is 0.2-0.5 mm.
5. The nerve retractor according to claim 1 or 2, wherein: the handle is provided with anti-skid threads.
6. The nerve retractor according to claim 3, further comprising:
and the scale marks are arranged on the periphery of the first through hole and used for indicating the angle between the connecting rod and the supporting rod.
7. The nerve retractor according to claim 6, wherein: an indication arrow is arranged at the tail end of the second rod body, the indication arrow is arranged along the axial direction of the second rod body, and the front end of the indication arrow points to the center of the first rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021860468.5U CN213345780U (en) | 2020-08-31 | 2020-08-31 | Nerve retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021860468.5U CN213345780U (en) | 2020-08-31 | 2020-08-31 | Nerve retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213345780U true CN213345780U (en) | 2021-06-04 |
Family
ID=76149785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021860468.5U Expired - Fee Related CN213345780U (en) | 2020-08-31 | 2020-08-31 | Nerve retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213345780U (en) |
-
2020
- 2020-08-31 CN CN202021860468.5U patent/CN213345780U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9782158B2 (en) | Lateral access system and method of use | |
| DE4306277C2 (en) | Operation marking tool | |
| DE69434145T2 (en) | Wirbeldistraktor | |
| DE69726491T2 (en) | Bone surgery tool to hold a cavity, surgical tool to hold a cavity, system for endoscopic surgery using a tool to hold a cavity | |
| DE60033612T2 (en) | Surgical retractor with controlled rotational movement | |
| DE69722052T2 (en) | Localization device for the femur | |
| DE69921451T2 (en) | DEVICE FOR INTERMEDIATE BODY FUSION | |
| DE69633778T2 (en) | INSTRUMENTARY FOR THE SURGICAL CORRECTION OF HUMAN SPINE IN LUMBAR AND BREEZE HEIGHT | |
| DE69637186T2 (en) | Device, with a protective device that has a passage with a non-circular cross-section for a protected access to the spine | |
| DE112010004350T5 (en) | SURGICAL ACCESS SYSTEM AND RELATED METHODS | |
| DE112012002181T5 (en) | Surgical retractor device and method of use | |
| DE60312975T2 (en) | SET TOOL FOR BONE ANCHOR | |
| CN213345780U (en) | Nerve retractor | |
| KR102395447B1 (en) | Expandable Cage Holder for Spinal Fusion Cage | |
| AU2015201577B2 (en) | Lateral access system and method of use | |
| DE202023102722U1 (en) | Disc space spreader for endoscopic fusion | |
| CN212879690U (en) | Anti-receding fusion device and system thereof | |
| KR102416664B1 (en) | Cage Holder for Spinal Fusion Cage | |
| CN209863986U (en) | Percutaneous intervertebral foramen mirror guide pin fixing device | |
| CN210019273U (en) | Oral cavity retractor system | |
| CN210019457U (en) | Sleeve retractor is put into to supplementary interbody fusion cage of unilateral binary channels scope technique | |
| CN209984378U (en) | Combined anatomical titanium mesh fusion cage and holder holding rod using same | |
| CN220778435U (en) | OLIF surgical instrument package | |
| CN218739105U (en) | Fracture piece holder | |
| CN214382425U (en) | Titanium net imbedding assembly, support wing, parallel spreader and titanium net holder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210604 |