CN105055004A - 360-degree rotary type vertebral plate bone rongeur - Google Patents
360-degree rotary type vertebral plate bone rongeur Download PDFInfo
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- CN105055004A CN105055004A CN201510638651.8A CN201510638651A CN105055004A CN 105055004 A CN105055004 A CN 105055004A CN 201510638651 A CN201510638651 A CN 201510638651A CN 105055004 A CN105055004 A CN 105055004A
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- cover plate
- catch bar
- vice body
- afterbody
- foot
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/2841—Handles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Abstract
The invention relates to a 360-degree rotary type vertebral plate bone rongeur. A stop pin is arranged on the inner cavity wall of a rongeur body, and the lower end of the stop pin is integrated closely with the upper surface of a push part of a push rod. By arranging the stop pin, the lower end of the stop pin and the upper surface of a bearing platform limit the push part of the push rod, so that while the forward and backward movement of the push rod is not influenced, the push rod is prevented from position deviation during forward and backward movement due to a space existing between the push part of the push rod and the inner cavity wall of the rongeur body, and then cannot cause a phenomenon of deviation of a cutting edge formed by a cover plate and base plate; and furthermore, the stop pin is arranged right above the left end side of the bearing platform, so that the deviation force borne by the lower end of the stop pin is minimum, abrasion is reduced to the utmost extent, the lower end of the stop pin and the upper surface of the bearing platform can fix and limit the push part, and the service life of the stop pin can be prolonged.
Description
Technical field
The present invention relates to a kind of 360 degree of rotary laminectomy rongeurs, belong to the operating forceps field in surgical operating instrument.
Background technology
In neurosurgery or spinal surgery, usually laminectomy rongeur is needed to sting bone process to skull or vertebral body vertebra, similar rongeur of the prior art, by claw beam device, clamp main body device and clamp handle device composition, claw beam device is plugged in clamp main body device, clamp handle device comprises interconnective large handle and stalklet, quiet claw beam is provided with in described claw beam device, dynamic claw beam, push rod and push rod Compress Spring, quiet, dynamic claw beam mates mutually, push rod is connected with dynamic claw beam by screw thread, push rod Compress Spring is arranged between quiet pincers stalk and push rod.Can find out, there is following shortcoming in above-mentioned laminectomy rongeur: above-mentioned laminectomy rongeur makes quiet pincers stalk and/or dynamic claw beam rotate certain angle without any arranging, the jaw opening direction between quiet pincers stalk and dynamic claw beam is caused to be fixing, such patient wants to change jaw direction, full wind-up can only be passed through, the position of whole laminectomy rongeur is rotated, thus reach the object changing jaw direction, like this patient needs the position often changing arm, cause inconvenient operation, affect patient.
In order to change laminectomy rongeur inconvenient problem with use in above-mentioned technology, Chinese patent literature CN103284783A discloses a kind of universal laminectomy rongeur, it comprises upper pliers plate, lower clamp piece and handle portion three part, by upper pliers plate body and upper pliers plate afterbody, lower clamp piece body, rotating handrail, front hand grip, back handle, pusher, the mechanism that holder and shell are formed, this laminectomy rongeur is by rotating rotating handrail, when handle orientations is constant, change rongeur jaw opening direction, by the movement between front hand grip and back handle, promote upper pliers plate to move relative to lower clamp piece, thus closed jaw, sting except osseous tissue.
Above-mentioned technology, by arranging rotating handrail on laminectomy rongeur, when handle orientations is constant, is rotated rotating handrail and is changed rongeur jaw opening direction; But, when described pusher promotes described upper pliers plate afterbody, can because Existential Space or gap and cause producing movement in described pusher promoting position when described upper pliers plate carries out slide anteroposterior between described pusher and described surgery inwall, thus the phenomenon that the jaw causing upper pliers plate in use to be formed with described lower clamp piece offsets.
Summary of the invention
For this reason, technical problem to be solved by this invention be existing laminectomy rongeur use procedure because between described pusher and described surgery inwall Existential Space or gap and cause producing movement in described pusher promoting position when described upper pliers plate carries out slide anteroposterior, thus the phenomenon that the jaw causing upper pliers plate in use to be formed with described lower clamp piece offsets.
For solving the problems of the technologies described above, the invention provides a kind of 360 degree of rotary laminectomy rongeurs, it comprises:
Front pincers foot;
Forceps major foot, comprises the palm linked together and holds conjunction portion and vice body; Described vice body has inner chamber, and is provided with cushion cap on the inwall of described vice body lumen caudal; The junction of holding conjunction portion and described vice body at described palm is provided with groove, and before described, described vice body inner cavity is stretched into through described groove in one end of pincers foot, and described before pincers foot and described forceps major foot hinged at described groove place;
Catch bar, comprises pushing part, club head and connects the connecting portion of described pushing part and club head, described pushing part with described before clamp foot and is connected, and to seesaw along described cushion cap surface under clamping foot promotion before described;
Cover plate and base plate, described cover plate and described base plate are slidably connected, and the afterbody of described cover plate and described base plate stretches into the interior intracavity of described vice body, and the club head of described cover plate afterbody and described catch bar is rotationally connected simultaneously;
Rotational structure, described rotational structure is in order to rotate the described cover plate and described base plate certain angle that are slidably connected together;
The internal chamber wall of described vice body is provided with spacer pin, and the upper surface of the lower end of described spacer pin and the described pushing part of described catch bar fits tightly, and described catch bar can not be hindered to move forward and backward.
Preferably, described spacer pin is arranged on directly over described cushion cap left end side.
Further, between described cover plate afterbody and the described connecting portion of described catch bar, be provided with elastic component, in order to support the both ends of the surface between described cover plate afterbody and the described connecting portion of described catch bar.
Preferably, described elastic component is be set in the spring on the described club head of described catch bar.
Further preferably, described spring is wavy spring.
Further, described rotational structure comprises the lock nut that the external screw thread that is arranged on described vice body front portion and described external screw thread match and the slip cap be arranged on inside the anterior port of described vice body inner chamber; The internal diameter of described slip cap is identical with the internal diameter of described vice body inner chamber; The afterbody of described base plate is connected with described slip cap, preferably, is connected with the inwall of described slip cap.
Preferably, described cover plate afterbody is cylindrical, and is provided with round cavity, and the internal diameter away from the round cavity of described cover plate butt ends is greater than the internal diameter of the round cavity of described cover plate butt ends; The described club head of described catch bar is cylindrical, and the end away from described connecting portion is provided with projection; Described projection is equipped with the round cavity away from described cover plate butt ends.
Preferably, the described club head of described catch bar is cylindrical, and is provided with round cavity, and the internal diameter near the round cavity of described connecting portion is greater than the internal diameter of the round cavity of described club head end; Described cover plate afterbody is cylindrical, and the tail end of cover plate afterbody is provided with projection; Described projection is equipped with the round cavity near described connecting portion.
Preferably, described cover plate is provided with T-shaped projection, on described base plate, is provided with the T-shaped groove matched with described T-shaped projection simultaneously, and described T-shaped groove is provided with the installing port that applicable described T-shaped projection enters described T-shaped groove; Further, described T-shaped projection and described T-shaped groove are respectively and cooperatively interact two.
Preferably, described base plate is provided with T-shaped projection, on described cover plate, is provided with the T-shaped groove matched with described T-shaped projection simultaneously, and described T-shaped groove is provided with the installing port that applicable described T-shaped projection enters described T-shaped groove.
Further, before described, pincers foot and described forceps major foot are respectively arranged with left pincers spring and right pincers spring, and an end of described left pincers spring and described right pincers spring is hinged.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) 360 degree of rotary laminectomy rongeurs of the present invention, the internal chamber wall of described vice body is provided with spacer pin, and the upper surface of the lower end of described spacer pin and the described pushing part of described catch bar fits tightly, and described catch bar can not be hindered to move forward and backward.By arranging described spacer pin, the pushing part of described catch bar limits by the lower end of described spacer pin and the upper surface of described cushion cap, do not affecting while described catch bar seesaws, can not because of the existence in the space between the pushing part of described catch bar and the internal chamber wall of described vice body, cause described catch bar to move in the meta offset that seesaws, and then there is the phenomenon of skew in the cutting edge causing described cover plate and described base plate to be formed; And then, described spacer pin is arranged on directly over described cushion cap left end side, be arranged on herein, the biasing force that the lower end of described spacer pin is born is minimum, decrease wearing and tearing to greatest extent, with the upper surface of described cushion cap, described pushing part fixedly can either be limited, the service life of described spacer pin can be improved again.
(2) 360 degree of rotary laminectomy rongeurs of the present invention, are provided with elastic component between described cover plate afterbody and the described connecting portion of described catch bar, in order to support the both ends of the surface between described cover plate afterbody and the described connecting portion of described catch bar.By above-mentioned setting, the club head of described cover plate afterbody and described catch bar bears a mutually opposite power respectively, the club head of described cover plate afterbody and described catch bar is made to form compact siro spinning technology in junction, and do not affect relatively rotating therebetween simultaneously, to avoid in prior art when described pusher promotes described upper pliers plate afterbody, can because gap therebetween makes, in described laminectomy rongeur use procedure, incoherent phenomenon occurs, thus facilitate the use of patient, and then can not cause the secondary pain and wound that cause because laminectomy rongeur use is discontinuous to patient, thus improve the stability in use of described laminectomy rongeur.
(3) 360 degree of rotary laminectomy rongeurs of the present invention, described elastic component is be set in the spring on the described club head of described catch bar.By arranging above-mentioned spring, the two ends of above-mentioned spring are fitted tightly with the club head of described cover plate afterbody and described catch bar respectively, thus ring shaped contact is formed in the both ends of the surface of the club head of described cover plate afterbody and described catch bar, and then balanced power is applied to above-mentioned both ends of the surface, and then ensure that described cover plate and the similar one of described catch bar, thus can not produce discontinuous in motor process at described cover plate, heighten the stability in use of described laminectomy rongeur further.
(4) 360 degree of rotary laminectomy rongeurs of the present invention, preferably, described spring is wavy spring.Described wavy spring is relative to common spring, the contact surface of the both ends of the surface of the club head of itself and described cover plate afterbody and described catch bar is larger, and the force of described wavy spring in transverse direction and radial direction and stressed more even, and then avoid the many later appearance yielding problems of Yin Putong spring access times, not only increase the stability in use of described laminectomy rongeur, improve the service life of described laminectomy rongeur simultaneously.
(5) 360 degree of rotary laminectomy rongeurs of the present invention, described rotational structure comprises the lock nut that the external screw thread that is arranged on described vice body front portion and described external screw thread match and the slip cap be arranged on inside the anterior port of described vice body inner chamber; The internal diameter of described slip cap is identical with the internal diameter of described vice body inner chamber; The afterbody of described base plate is connected with described slip cap.In use, unclamp described lock nut, rotate described cover plate and described base plate, thus drive and be fixedly connected with described slip cap and rotate together, after turning to certain angle, twist dead described lock nut, thus fixing described slip cap, and then fixing described cover plate and described base plate can not rotate, but do not affect described cover plate relative to described base plate relative sliding, this novel in structural design, is skillfully constructed, easy to use.
(6) 360 degree of rotary laminectomy rongeurs of the present invention, the described club head of described catch bar is cylindrical, and is provided with round cavity, and the internal diameter near the round cavity of described connecting portion is greater than the internal diameter of the round cavity of described club head end; Described cover plate afterbody is cylindrical, and the tail end of cover plate afterbody is provided with projection; Described projection is equipped with the round cavity near described connecting portion.By the described round cavity arranging described projection and be equipped with it, described projection is rotated in described round cavity, thus in conjunction with described rotational structure and described elastic component, and then make described laminectomy rongeur can conveniently turn to a certain angle, and not because of the existence in the gap between described projection and described round cavity, and cause described left pincers foot to promote described catch bar producing incoherent phenomenon, improve the stability in use of described laminectomy rongeur.Further, described projection and arranging of described round cavity can be exchanged, and add the structure of described laminectomy rongeur.
(7) 360 degree of rotary laminectomy rongeurs of the present invention, described cover plate is provided with T-shaped projection, on described base plate, be provided with the T-shaped groove matched with described T-shaped projection simultaneously, and described T-shaped groove is provided with the installing port that applicable described T-shaped projection enters described T-shaped groove; Described T-shaped projection and described T-shaped groove make being slidably connected of described cover plate and described base plate use more firm, add patient and to cut bone the accuracy of tissue; Further, described T-shaped projection and described T-shaped groove can exchange, and add the structure of described laminectomy rongeur; Further, described T-shaped projection and described T-shaped groove are respectively and cooperatively interact two, and two groups of described T-shaped projections cooperatively interacted and described T-shaped groove add described cover plate and firm being slidably connected of described base plate more.
(8) 360 degree of rotary laminectomy rongeurs of the present invention, before described, pincers foot and described forceps major foot are respectively arranged with left pincers spring and right pincers spring, and an end of described left pincers spring and described right pincers spring are hinged.Above-mentioned pincers spring structure can control patient apply to hold the lasting continuity of making a concerted effort and control described before pincers foot and described forceps major foot stability when holding conjunction, avoid because all parts, especially before described, pincers foot stretches into described vice body inside and connects, and the friction that the existence in space between each parts produced causes and discontinuous phenomenon.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the sectional view of laminectomy rongeur described in the embodiment of the present invention 1;
Fig. 2 is the front view of the described catch bar of laminectomy rongeur described in the embodiment of the present invention 1;
Fig. 3 is the top view of the described catch bar of laminectomy rongeur described in the embodiment of the present invention 1;
Fig. 4 is the upward view of the described cover plate of laminectomy rongeur described in the embodiment of the present invention 1;
Fig. 5 is the A-A direction view of Fig. 4;
Fig. 6 is the B-B direction view of Fig. 5;
Fig. 7 is the top view of the described base plate of laminectomy rongeur described in the embodiment of the present invention 1;
Fig. 8 is the A-A direction view of Fig. 7;
Fig. 9 is the D-D direction view of Fig. 8;
In figure, Reference numeral is expressed as: pincers foot before 1-; 2-forceps major foot; 21-palm holds conjunction portion; 22-vice body; 3-cushion cap; 4-groove; 5-axle; 6-catch bar; 61-pushing part; 62-club head; 63-connecting portion; 64-mounting groove; 65-pin shaft hole; 7-cover plate; 8-base plate; 9-elastic component; 7-cover plate; 8-base plate; 9-elastic component; 10-external screw thread; 11-lock nut; 12-slip cap; 13-round cavity; 14-is protruding; 15-T type is protruding; 16-T type groove; 17-installing port; The left pincers spring of 18-; The right pincers spring of 19-; 20-elongate slots; 23-bearing pin; 24-plug; 25-spacer pin.
Detailed description of the invention
Below in conjunction with accompanying drawing, content of the present invention is described in detail.
Embodiment 1
As shown in figs 1-9, present embodiments provide a kind of 360 degree of rotary laminectomy rongeurs, pincers foot 1, forceps major foot 2, catch bar 6, cover plate 7, base plate 8, rotational structure and spacer pin 25 before comprising.
Before described, pincers foot 1 has shape and the structure of finger gripping conjunction, is convenient to finger gripping and closes.
Described forceps major foot 2, comprises the palm linked together and holds conjunction portion 21 and vice body 22; Described palm is held conjunction portion 21 and is had shape and the structure that palm holds conjunction, with closes in finger gripping shape described before clamp foot 1 with the use of, carry out holding conjunction and unclamp action; Described vice body 22 has inner chamber, and the structure of this inner chamber is unique, and may this inner chamber not of uniform size at the diverse location of described vice body 22, simultaneously may for running through the through hole of described vice body 22, preferably, the inner chamber of described vice body 22 is the through hole of cross section circle; The inwall of described vice body 22 lumen caudal is provided with cushion cap 3, and described cushion cap 3 is fitted with described vice body 22 inner chamber and is arranged, and is formed with a horizontal plane and 90 ° of external corners, described cushion cap 3 is fixedly installed with the inwall of described vice body 22 inner chamber, as adopted bolt to fix, preferably, the two is integrally formed; When the intracavity section of described vice body 22 is circular through hole, described vice body 22 afterbody is provided with plug 24 and is arranged on the top of described cushion cap 3 in order to close the tail end of this through hole; The junction of holding conjunction portion 21 and described vice body 22 at described palm is provided with groove 4, described groove 4 is overlapping with described vice body 22 central cross-section along its length along the central cross-section of described vice body 22 length direction, and described groove 4 runs through described cushion cap 3 until the inner chamber of described vice body 22, described vice body 22 inner cavity is stretched into through described groove 4 in one end of described front pincers foot 1 simultaneously, and described before pincers foot 1 and described forceps major foot 2 described groove 4 sentence axle 5 for axle hinged, preferably, described axle 5 is gill axle screw.
Preferably, before described, the palm of pincers foot 1 and described forceps major foot 2 is held in conjunction portion 21 and is respectively arranged with left pincers spring 18 and right pincers spring 19, one end of described left pincers spring 18 and described right pincers spring 19 is separately fixed at the bottom that the described front palm clamping foot 1 and described forceps major foot 2 holds conjunction portion 21, and the other end is simultaneously hinged.Above-mentioned pincers spring structure can control patient apply to hold the lasting continuity of making a concerted effort and control described before pincers foot 1 and the palm of described forceps major foot 2 hold stability when conjunction is held in conjunction portion 21, avoid because all parts, especially before described, pincers foot is stretched 1 and is entered described vice body 22 inside and connect, and the friction that the existence in space between each parts produced causes and discontinuous phenomenon.
Described catch bar 6, comprises pushing part 61, club head 62 and connects the connecting portion 63 of described pushing part 61 and club head 62; Described pushing part 61 is connected with the described front end of clamping foot 1 through described groove 4, and pincers foot 1 seesaws along the horizontal plane of described cushion cap 3 under promoting before described, described pushing part 61 has a lot with the connected mode of described pushing part 61, preferably, described pushing part 62 is provided with mounting groove 64, and the dual-side of described mounting groove 64 is provided with pin shaft hole 65, clamp the end through groove 4 of foot 1 before described and then be movably connected on described pin shaft hole 65 with bearing pin 23 through described mounting groove 64.
Described cover plate 7 and described base plate 8, described cover plate 7 and described base plate 8 are slidably connected, described cover plate 7 and described base plate 8 can be designed to be applicable in prior art pattern or the structure of cover plate 7 in laminectomy rongeur and base plate 8 (or calling caliper and lower clamp), in the present embodiment, described cover plate 7 is provided with T-shaped protruding 15, be provided with on described base plate 8 and the described T-shaped protruding 15 T-shaped grooves 16 matched simultaneously, and described T-shaped groove 16 place is provided with the installing port 17 that applicable described T-shaped protruding 15 enter described T-shaped groove 16, during installation, first embed described installing port 17 by described T-shaped protruding 15, then the direction to described T-shaped groove 16 is moved, make to slide smoothly between described cover plate 7 and described base plate 8, described T-shaped protruding 15 and the number of described T-shaped groove 16 unique, preferably, described T-shaped projection (15) and described T-shaped groove (16) are respectively two that cooperatively interact, simultaneously, the afterbody of described cover plate 7 and described base plate 8 stretches into the interior intracavity of described vice body 22, the club head 62 of described cover plate 7 afterbody and described catch bar 6 is rotationally connected simultaneously, this mode be rotationally connected can be designed to varied, in the present embodiment, described cover plate 7 afterbody is cylindrical, and is provided with round cavity 13, meanwhile, the internal diameter of the round cavity of described cover plate 7 butt ends is greater than away from the internal diameter of the round cavity of described cover plate 7 butt ends, the described club head 62 of described catch bar 6 is cylindrical, and protruding 14 are provided with in the end away from described connecting portion 63, described protruding 14 are arranged along the circumference of described club head 62, can be several raised points be evenly arranged, also can be club head described in ring 62 1 weeks, as for the described shape of protruding 14, be preferably the club head round platform of 62 1 weeks described in ring, in order to above-mentioned round platform being stretched into smoothly the round cavity of described cover plate 7 butt ends, described cover plate 7 butt ends round cavity outer wall on be provided with elongate slots 20, the number that described elongate slots 20 is arranged specifically is selected according to reality, in the present embodiment, the number of described elongate slots 20 be along described cover plate 7 end one week equally distributed 4, by such setting, very little power can be applied and just described club head 62 can be filled in described round cavity, described club head 62 drives described cover plate 7 to seesaw by seesawing of described catch bar 6 in this round cavity, thus form cutting edge with described base plate 8, osseous tissue is excised.
Described pushing part 61 and described connecting portion 63 shape inner corner trim in 90 °, under cooperatively interacting and clamp the promotion of foot 1 to described cover plate 7 before described in conjunction with described club head 62, mutually limit, cooperation seesaws closely with 90 ° of external corner of described cushion cap 3.
Described rotational structure, described rotational structure is in order to rotate the described cover plate 7 and described base plate 8 certain angle that are slidably connected together; In the present embodiment, described rotational structure comprises the lock nut 11 that the external screw thread 10 that is arranged on described vice body front portion and described external screw thread 10 match and the slip cap 12 be arranged on inside the anterior port of described vice body 22 inner chamber; Described slip cap 12 is a cylinder, its internal diameter is identical with the internal diameter of described vice body 22 inner chamber, and outer wall is just entrenched in inside the anterior port of described vice body inner chamber completely, and can rotate in the anterior port of described vice body inner chamber, the width of described slip cap 12 makes when described lock nut 11 is tightened, the both ends of the surface of described slip cap 12 are clamped in the interior resonator end surface of the inner face of described lock nut 11 and the front portion of described vice body 22, and namely described slip cap 12 is fixed; Simultaneously, the afterbody of described base plate 8 is connected with described slip cap 12, preferably, be connected with the inwall of described slip cap 12, the mode of this connection has a lot, as being fixedly connected with and removably connecting, is connected further as welded, being threaded with steady pin, in the present embodiment, by the mode of welding, the two is fixedly connected with.
Described spacer pin 25, is arranged on the internal chamber wall of described vice body 22, when arranging described spacer pin 25, the internal chamber wall of described vice body 25 punches, fixes through described spacer pin 25, and then cleaning is to the part of described vice body 22 outer surface; The upper surface of the lower end of described spacer pin 25 and the described pushing part 61 of described catch bar 6 fits tightly, and described catch bar 6 can not be hindered to move forward and backward.By arranging described spacer pin 25, the pushing part 61 of described catch bar 6 limits by the lower end of described spacer pin 25 and the upper surface of described cushion cap 3, do not affecting while described catch bar 6 seesaws, can not because of the existence in the space between the pushing part 61 of described catch bar 6 and the internal chamber wall of described vice body 22, cause described catch bar 6 to move in the meta offset that seesaws, and then there is the phenomenon of skew in the cutting edge causing described cover plate 7 and described base plate 8 to be formed; Preferably, described spacer pin 22 is arranged on directly over described cushion cap 3 left end side, be arranged on herein, the biasing force that the lower end of described spacer pin 25 is born is minimum, decrease wearing and tearing to greatest extent, with the upper surface of described cushion cap 3, described pushing part 61 fixedly can either be limited, the service life of described spacer pin 25 can be improved again.
Further, described 360 degree of rotary laminectomy rongeurs are also provided with elastic component 9, be arranged between described cover plate 7 afterbody and the described connecting portion 63 of described catch bar 6, in order to support the both ends of the surface between described cover plate 7 afterbody and the described connecting portion 63 of described catch bar 6, the set-up mode of described elastic component 9 is varied, as as described in elastic component 9 be the spring on club head 62 as described in catch bar 6 as described in being set in, preferably, described elastic component is wavy spring.Preferably, the outer surface of described elastic component and the surface of internal cavity of described vice body 22 are fitted, play the effect of the clearance spaces of intracavity in supplementary described vice body 22, the component deflection phenomenon that the existence that further avoid space between each parts of the embedded endogenous cause of ill of described vice body 22 causes.
Embodiment 2
Present embodiments provide a kind of 360 degree of rotary laminectomy rongeurs, it is the modification in embodiment 1, and this modification is as follows:
The described club head of described catch bar is cylindrical, and is provided with round cavity, and the internal diameter near the round cavity of described connecting portion is greater than the internal diameter of the round cavity of described club head end; Described cover plate afterbody is cylindrical, and the tail end of cover plate afterbody is provided with projection; Described projection is equipped with the round cavity near described connecting portion.
Described base plate is provided with T-shaped projection, on described cover plate, is provided with the T-shaped groove matched with described T-shaped projection simultaneously, and described T-shaped groove is provided with the installing port that applicable described T-shaped projection enters described T-shaped groove.
Briefly, be exactly that the T-shaped groove 16 on T-shaped protruding 15 on described cover plate 7 and described base plate 8, installing port 17 structure are exchanged; Round cavity and the elongate slots 20 of the projection 13 on the described club head 62 of described catch bar 6 and described cover plate 7 afterbody carry out structure exchange.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (10)
1. 360 degree of rotary laminectomy rongeurs, comprise
Front pincers foot (1);
Forceps major foot (2), comprises the palm linked together and holds conjunction portion (21) and vice body (22); Described vice body (22) has inner chamber, and is provided with cushion cap (3) on the inwall of described vice body (22) lumen caudal; The junction of holding conjunction portion (21) and described vice body (22) at described palm is provided with groove (4), before described, described vice body (22) inner cavity is stretched into through described groove (4) in one end of pincers foot (1), and described front pincers foot (1) are hinged at described groove (4) place with described forceps major foot (2);
Catch bar (6), comprise pushing part (61), club head (62) and connect the connecting portion (63) of described pushing part (61) and club head (62), described pushing part (61) with described before clamp foot (1) and is connected, and to seesaw along described cushion cap (3) surface under clamping foot (1) promotion before described;
Cover plate (7) and base plate (8), described cover plate (7) and described base plate (8) are slidably connected, and the afterbody of described cover plate (7) and described base plate (8) stretches into the interior intracavity of described vice body (22), the club head (62) of described cover plate (7) afterbody and described catch bar (6) is rotationally connected simultaneously;
Rotational structure, described rotational structure is in order to rotate the described cover plate (7) and described base plate (8) certain angle that are slidably connected together;
It is characterized in that,
The internal chamber wall of described vice body (22) is provided with spacer pin (25), the upper surface of the lower end of described spacer pin (25) and the described pushing part (61) of described catch bar (6) fits tightly, and described catch bar (6) can not be hindered to move forward and backward.
2. 360 degree of rotary laminectomy rongeurs according to claim 1, is characterized in that, described spacer pin (25) is arranged on directly over described cushion cap (3) left end side.
3. 360 degree of rotary laminectomy rongeurs according to claim 1 and 2, it is characterized in that, between described cover plate (7) afterbody and the described connecting portion (63) of described catch bar (6), be provided with elastic component (9), in order to support described cover plate (7) afterbody and described catch bar (6) described connecting portion (63) between both ends of the surface.
4. 360 degree of rotary laminectomy rongeurs according to claim 3, is characterized in that, described elastic component (9) is for being set in the spring on the described club head (62) of described catch bar (6).
5. according to the arbitrary 360 degree of described rotary laminectomy rongeurs of claim 4, it is characterized in that, described rotational structure comprises the lock nut (11) that the external screw thread (10) that is arranged on described vice body front portion and described external screw thread (10) match and the slip cap (12) be arranged on inside the anterior port of described vice body (22) inner chamber; The afterbody of described base plate (8) is connected with described slip cap (12).
6. 360 degree of rotary laminectomy rongeurs according to claim 5, it is characterized in that, described cover plate (7) afterbody is cylindrical, and being provided with round cavity (13), the internal diameter away from the round cavity of described cover plate (7) butt ends is greater than the internal diameter of the round cavity of described cover plate (7) butt ends; The described club head (62) of described catch bar (6) is cylindrical, and the end away from described connecting portion (63) is provided with projection; Described projection (14) is equipped with the round cavity away from described cover plate (7) butt ends.
7. 360 degree of rotary laminectomy rongeurs according to claim 5, it is characterized in that, the described club head of described catch bar is cylindrical, and is provided with round cavity, and the internal diameter near the round cavity of described connecting portion is greater than the internal diameter of the round cavity of described club head end; Described cover plate afterbody is cylindrical, and the tail end of cover plate afterbody is provided with projection; Described projection is equipped with the round cavity near described connecting portion.
8. 360 degree of rotary laminectomy rongeurs according to claim 6, it is characterized in that, described cover plate (7) is provided with T-shaped projection (15), on described base plate (8), be provided with the T-shaped groove (16) matched with described T-shaped projection (15) simultaneously, and described T-shaped groove (16) place is provided with the installing port (17) that applicable described T-shaped projection (15) enters described T-shaped groove (16).
9. 360 degree of rotary laminectomy rongeurs according to claim 7, it is characterized in that, described base plate is provided with T-shaped projection, on described cover plate, be provided with the T-shaped groove matched with described T-shaped projection simultaneously, and described T-shaped groove is provided with the installing port that applicable described T-shaped projection enters described T-shaped groove.
10. 360 degree of rotary laminectomy rongeurs according to claim 1, it is characterized in that, before described, pincers foot (1) and described forceps major foot (2) are respectively arranged with left pincers spring (18) and right pincers spring (19), and an end of described left pincers spring (18) and described right pincers spring (19) is hinged.
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| CN201510638651.8A CN105055004B (en) | 2015-09-30 | 2015-09-30 | 360-degree rotary type vertebral plate bone rongeur |
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| CN201510638651.8A CN105055004B (en) | 2015-09-30 | 2015-09-30 | 360-degree rotary type vertebral plate bone rongeur |
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| CN105055004B CN105055004B (en) | 2017-03-22 |
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| CN109009335A (en) * | 2018-07-20 | 2018-12-18 | 任建伟 | A kind of universal micro- scissors |
| CN113317846A (en) * | 2021-07-13 | 2021-08-31 | 上海长征医院 | Suction apparatus gun-shaped rongeur for laminectomy decompression |
| CN109009335B (en) * | 2018-07-20 | 2024-04-26 | 任建伟 | Universal microscopic scissors |
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| CN105055004B (en) | 2017-03-22 |
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