CN102283692A - Gun type spinal column vertebral plate cutter - Google Patents
Gun type spinal column vertebral plate cutter Download PDFInfo
- Publication number
- CN102283692A CN102283692A CN2011102812999A CN201110281299A CN102283692A CN 102283692 A CN102283692 A CN 102283692A CN 2011102812999 A CN2011102812999 A CN 2011102812999A CN 201110281299 A CN201110281299 A CN 201110281299A CN 102283692 A CN102283692 A CN 102283692A
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- sheet
- pincers
- adjustable wrench
- pincer
- groove
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Abstract
The invention relates to the technical field of medical apparatuses, in particular to a gun type spinal column vertebral plate cutter used for cutting a vertebral plate during a spinal surgery. The cutter consists of an upper pincer sheet (1), a lower pincer sheet (2), a movable wrench (3), a spring piece (4) and a fixing bolt (5), and is characterized in that: a groove is formed at a pincer mouth (11) of the upper pincer sheet (1); a pincer head (21) of the lower pincer sheet (2) is narrower than a pincer body (22); a blade heave (24) of the lower pincer sheet (2) is matched with the groove of the pincer mouth (11) and can be embedded in the groove; and the periphery of the blade heave (24) can be a sharp knife edge, so the vertebral plate is cut off through the combined shearing of the pincer mouth and the blade heave. The gun type spinal column vertebral plate cutter has the advantages that: the structure is simple; the cutter is convenient to operate simply; and a gradual nibbled and bitten groove is modified into a continuous shearing type groove, so the grooving efficiency of the vertebral plate and the safety of the surgery are greatly improved, the vertebral plate is easy to integrally cut, and the damage is low.
Description
Technical field
The present invention relates to technical field of medical instruments, be used to cut the rifle formula spinal lamina cutter of vertebral plate when being a kind of spinal operation.
Background technology
Clinically, laminectomy for decompression is the important component part of spinal operation.Vertebral plate cuts main use abrasive drilling and the rongeur of rifle formula at present.Abrasive drilling is used for being slotted respectively in the vertebral plate both sides, and whole removing is removed vertebral plate then, and the operation easier of abrasive drilling is very big, because careless slightly, neural just possible impaired, operating technology is difficult for grasping.Mostly be clinically at present and use the rongeur of rifle formula, its by upper pliers plate, clamp sheet, adjustable wrench, spring leaf and set bolt down and form, upper pliers plate divides jaw, caliper, pincers tail three parts, inner chamber is a chute, and jaw is the U font for flat mouthful, it is the sharp edge of a knife, be used to shear vertebral plate, it is protruding that pincers tail inner chamber is provided with a lock, is used for being connected with the snap close of adjustable wrench; Under clamp sheet and divide binding clip, caliper, pincers handle three parts, it is protruding that the top of binding clip is provided with a sword, this sword is protruding to be complementary with the upper pliers plate jaw, be used for and the jaw interlock, the caliper top of clamping sheet down is provided with a chute rail, chute coupling in this chute rail and the upper pliers plate, upper pliers plate be installed on down the pincers sheet and can slide along rail, shape has a certain degree between pincers handle and the caliper, and the similar small of the stock is convenient to pull adjustable wrench, on the pincers handle spinous process is arranged, the slip of hands when being used to prevent to operate, pincers handle central authorities at pincers handle and caliper intersection have an adjustable wrench passage, and both sides have the bolting hole; Adjustable wrench divides connecting portion and spanner portion two parts, two parts all are convexly curved, connecting portion is thinner, be used to pass pincers handle adjustable wrench passage, its top is provided with a groove type snap close, is used for being connected with the protruding coupling of lock of upper pliers plate pincers tail inner chamber, the corresponding site in bolting hole has bolt hole on the infra pincers sheet pincers handle, bolt passes bolting hole and bolt hole, with upper pliers plate, clamp sheet down, adjustable wrench is fixed as one, adjustable wrench can also bolt come back rotation for axle; Spring leaf divides former and later two, places between adjustable wrench and the following pincers sheet pincers handle, and front spring sheet one end is fixed in the adjustable wrench afterbody, and the other end is herringbone with an end of rear spring sheet and is connected, and the other end of rear spring sheet then is fixed in and clamps the afterbody that sheet clamps handle down.Under not afterburning situation, push away before the afterbody of elastic force by two spring leafs adjustable wrench, upper pliers plate retreats, its jaw and protruding separation of sword of clamping the sheet binding clip down, the binding clip place forms otch, and can will intend the vertebral plate embedding otch of excision this moment, withhold adjustable wrench, upper pliers plate is before pushed away, and its jaw incision vertebral plate is protruding until sword, because jaw is flat mouthful, vertebral plate is difficult during the protruding interlock of jaw and sword is cut disconnection, often need to break, take off rongeur then, decontrol adjustable wrench, upper pliers plate retreats by the chute rail vertebral plate that downcuts is released in the chute of upper pliers plate, continue again vertebral plate is embedded otch, by last method operation, push ahead fluting gradually repeatedly.Though this grooving method is than abrasive drilling safety, but complex operation, rongeur bites repeatedly again and again fluting can not be carried out continuously, waste time and energy, be unfavorable for the progress of performing the operation, particularly need patient vertebral plate both sides long distance fluting en bloc resection vertebral plate, moreover, in the process that rongeur is taken off repeatedly and inserted, also there is the hidden danger that injures nervous tissue.
Summary of the invention
The purpose of this invention is to provide a kind of safe and reliable, easy and simple to handle, the rifle formula spinal lamina cutter that can slot continuously, make the above-mentioned formula fluting that bites one by one into continuous shearing fluting, thus can more easily whole excision vertebral plate.
The present invention is the improvement to the rongeur of above-mentioned rifle formula.The present invention by upper pliers plate, clamp sheet, adjustable wrench, spring leaf and set bolt down and form, upper pliers plate divides jaw, caliper, pincers tail three parts, inner chamber is a chute, jaw is the sharp edge of a knife, it is protruding that pincers tail inner chamber is provided with a lock, be used for being connected, it is characterized in that jaw is provided with groove with the snap close of adjustable wrench; Under clamp sheet and divide binding clip, caliper, pincers handle three parts, it is protruding that the top of binding clip is provided with a sword, the caliper top of clamping sheet down is provided with a chute rail, chute coupling in this chute rail and the upper pliers plate, also can slide on the chute rail that upper pliers plate is installed on down the pincers sheet along rail, shape has a certain degree between pincers handle and the caliper, the similar small of the stock is convenient to pull adjustable wrench, on the pincers handle spinous process is arranged, the slip of hands when being used to prevent to operate is in the pincers handle central authorities of the intersection that clamps handle and caliper, have an adjustable wrench passage, respectively there is a bolting hole its both sides, it is characterized in that the binding clip of pincers sheet is narrow than caliper down, and the protruding groove with the upper pliers plate jaw of its sword mates, can embed in the groove of jaw, can guarantee like this vertebral plate is cut off, and the protruding periphery of sword also can be the sharp edge of a knife, be beneficial to that jaw and sword are protruding makes a concerted effort to shear vertebral plate; Adjustable wrench divides connecting portion and spanner portion two parts, two parts all are convexly curved, connecting portion is thinner, be used to pass pincers handle adjustable wrench passage, its top is provided with a groove type snap close, is used for the protruding linking of lock with upper pliers plate pincers tail inner chamber, the corresponding site in bolting hole has bolt hole on the infra pincers sheet pincers handle, bolt passes above-mentioned bolting hole and bolt hole, with upper pliers plate, clamp sheet down, adjustable wrench is fixed as one, adjustable wrench can also bolt come back rotation for axle; Spring leaf divides former and later two, places between adjustable wrench and the following pincers sheet pincers handle, and front spring sheet one end is fixed in the adjustable wrench afterbody, and the other end is herringbone with an end of rear spring sheet and is connected, and the other end of rear spring sheet then is fixed in and clamps the afterbody that sheet clamps handle down.
During use, the vertebral plate that to intend excision routinely places in jaw and the sword otch between protruding, withhold adjustable wrench, upper pliers plate is before pushed away, its jaw incision vertebral plate, until the protruding groove that enters the upper pliers plate jaw of sword, decontrol adjustable wrench, the vertebral plate of cutting-out will be pushed out in the chute of upper pliers plate and fall down, only need this moment the reach cutter that vertebral plate is inserted otch, just can carry out next round and shear, so repeatedly, fluting efficient improves greatly, also improved safety coefficient, and the binding clip of following pincers sheet is narrow, and the groove that vertebral plate is opened is also narrow, makes wound littler.
The present invention is simple in structure, and is easy and simple to handle, and the formula that will bite one by one fluting makes continuous shearing fluting into, improved the safety of vertebral plate fluting efficient and operation greatly, thereby can more easily wholely excise vertebral plate, and wound is little.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention.
Fig. 2 is a upper pliers plate structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
The present invention by upper pliers plate 1, clamp sheet 2, adjustable wrench 3, spring leaf 4 and set bolt 5 down and form, upper pliers plate divides jaw 11, caliper 12, pincers tail 13 3 parts, and inner chamber is a chute, and jaw 11 is the sharp edge of a knife, be provided with groove, pincers tail 13 inner chambers are provided with a lock protruding 14; Under clamp sheet and divide binding clip 21, caliper 22, pincers handle 23 3 parts, the top of binding clip is provided with a sword protruding 24, sword protruding 24 mates with the groove of jaw 11, can be embedded in the groove, the caliper top of clamping sheet down is provided with a chute rail, chute coupling in this chute rail and the upper pliers plate, also can slide along rail on the chute rail that upper pliers plate is installed on down the pincers sheet, shape has a certain degree the similar small of the stock between pincers handle and the caliper, be convenient to pull adjustable wrench, on the pincers handle spinous process 25 is arranged, the slip of hands when being used to prevent to operate is in the pincers handle central authorities of the intersection that clamps handle and caliper, have an adjustable wrench passage, respectively there is a bolting hole its both sides; Adjustable wrench divides connecting portion 31 and spanner portion 32 two parts, two parts all are convexly curved, connecting portion is thinner, be used to pass pincers handle adjustable wrench passage, its top is provided with a groove type snap close 33, the lock protruding 14 that itself and upper pliers plate clamp the tail inner chamber is connected, connecting portion 31 is positioned at down, and the bolting hole corresponding site of pincers sheet pincers handle has bolt hole, bolt 5 is by the bolting hole of pincers handle and the bolt hole of adjustable wrench connecting portion, with upper pliers plate, clamp sheet down, adjustable wrench is fixed as one, adjustable wrench with the bolt be the axle can come back rotation; Before and after the spring leaf 4 minutes two, place between adjustable wrench and the following pincers sheet pincers handle, one end of front spring sheet 41 is fixed in the adjustable wrench afterbody, the other end is herringbone with an end of rear spring sheet 42 and is connected, the other end of rear spring sheet then is fixed in the afterbody of pincers sheet pincers handle down, the jaw 11 that it is characterized in that upper pliers plate 1 is provided with groove, the binding clip 21 that clamps sheet 2 down is narrow than caliper 22, its sword protruding 24 mates with the groove of upper pliers plate jaw 11, can embed in this groove, protruding 24 peripheries of sword also can be the sharp edge of a knife, and this helps jaw and vertebral plate is cut off in the protruding shearing of making a concerted effort of sword.
The present invention can make different specifications and models as required.
Claims (2)
1. rifle formula spinal lamina cutter, by upper pliers plate (1), clamp sheet (2), adjustable wrench (3), spring leaf (4) and set bolt (5) down and form, upper pliers plate divides jaw (11), caliper (12), pincers tail (13) three parts, inner chamber is a chute, jaw (11) is the sharp edge of a knife, and pincers tail (13) inner chamber is provided with a lock protruding (14); Under clamp sheet and divide binding clip (21), caliper (22), pincers handle (23) three parts, the top of binding clip is provided with a sword protruding (24), caliper (22) top of clamping sheet down is provided with a chute rail, chute coupling in this chute rail and the upper pliers plate (1), upper pliers plate is installed on down on the chute rail that clamps sheet and can slides along rail, shape has a certain degree between pincers handle (23) and the caliper (22), on the pincers handle spinous process (25) is arranged, pincers handle central authorities at the intersection that clamps handle and caliper, have an adjustable wrench passage, respectively there is a bolting hole its both sides; Adjustable wrench (3) divides connecting portion (31) and spanner portion (32) two parts, two parts all are convexly curved, connecting portion (31) is thinner, be used to pass pincers handle adjustable wrench passage, its top is provided with a groove type snap close (33), the lock protruding (14) that itself and upper pliers plate clamp the tail inner chamber is connected, connecting portion (31) is positioned at down, and the bolting hole corresponding site of pincers sheet pincers handle has bolt hole, bolt (5) is by the bolting hole of pincers handle and the bolt hole of adjustable wrench connecting portion, with upper pliers plate, under clamp sheet, adjustable wrench is fixed as one, and adjustable wrench is that axle can come back rotation with the bolt; Spring leaf (4) divides two of front and back, place between adjustable wrench and the following pincers sheet pincers handle, one end of front spring sheet (41) is fixed in the adjustable wrench afterbody, the other end is herringbone with an end of rear spring sheet (42) and is connected, the other end of rear spring sheet then is fixed in the afterbody of pincers sheet pincers handle down, it is characterized in that the jaw (11) of upper pliers plate (1) is provided with groove, and the binding clip (21) of following pincers sheets (2) is narrow than caliper (22), its sword protruding (24) mates with the groove of upper pliers plate jaw (11), can embed in this groove.
2. by the described rifle formula of claim 1 spinal lamina cutter, it is characterized in that sword protruding (24) periphery is the sharp edge of a knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110281299 CN102283692B (en) | 2011-09-21 | 2011-09-21 | Gun type spinal column vertebral plate cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110281299 CN102283692B (en) | 2011-09-21 | 2011-09-21 | Gun type spinal column vertebral plate cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102283692A true CN102283692A (en) | 2011-12-21 |
| CN102283692B CN102283692B (en) | 2013-07-03 |
Family
ID=45330643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110281299 Expired - Fee Related CN102283692B (en) | 2011-09-21 | 2011-09-21 | Gun type spinal column vertebral plate cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102283692B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104323831A (en) * | 2014-09-16 | 2015-02-04 | 中国人民解放军第一七五医院 | Total spondylectomy intercalated disc cutter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080221383A1 (en) * | 2007-02-12 | 2008-09-11 | Vertos Medical, Inc. | Tissue excision devices and methods |
| CN201469357U (en) * | 2009-09-09 | 2010-05-19 | 刘忠军 | Bone rongeur for laminectomy |
| CN202235562U (en) * | 2011-09-21 | 2012-05-30 | 贾连顺 | Gun type spinal vertebral plate cutter |
-
2011
- 2011-09-21 CN CN 201110281299 patent/CN102283692B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080221383A1 (en) * | 2007-02-12 | 2008-09-11 | Vertos Medical, Inc. | Tissue excision devices and methods |
| CN201469357U (en) * | 2009-09-09 | 2010-05-19 | 刘忠军 | Bone rongeur for laminectomy |
| CN202235562U (en) * | 2011-09-21 | 2012-05-30 | 贾连顺 | Gun type spinal vertebral plate cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104323831A (en) * | 2014-09-16 | 2015-02-04 | 中国人民解放军第一七五医院 | Total spondylectomy intercalated disc cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102283692B (en) | 2013-07-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20140921 |
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| EXPY | Termination of patent right or utility model |