CN108771565B

CN108771565B - Screw clamping mechanism for orthopedics department

Info

Publication number: CN108771565B
Application number: CN201810743951.6A
Authority: CN
Inventors: 高鹏飞; 谢文贵; 史凯; 马楠
Original assignee: Individual
Current assignee: Gao Pengfei
Priority date: 2018-07-09
Filing date: 2018-07-09
Publication date: 2020-12-08
Anticipated expiration: 2038-07-09
Also published as: CN108771565A

Abstract

The invention relates to the technical field of orthopedic surgery tools, in particular to a screw clamping mechanism for orthopedics department, which comprises a semicircular clamping cylinder I, a semicircular clamping cylinder II and a hinge, wherein the top ends of the semicircular clamping cylinder I and the semicircular clamping cylinder II are rotationally connected through the hinge, clamping arms which are vertical to the semicircular clamping cylinder I and the semicircular clamping cylinder II along the axial direction of the semicircular clamping cylinder I and the semicircular clamping cylinder II are respectively arranged on the outer surfaces of the semicircular clamping cylinder I and the semicircular clamping cylinder II, anti-skid grains are arranged on the inner surfaces of the semicircular clamping cylinder I and the semicircular clamping cylinder II, through holes are formed in the semicircular clamping cylinder I and/or the semicircular clamping cylinder II, and locking rods are. The anti-skidding thread and the locking rod prevent the fixing screw from sliding when rotating, the screw cannot fall off or deviate, the locking part prevents the fixing screw from being loosened due to fatigue caused by holding the clamping arm for a long time, the screwing-in of the fixing screw is influenced, the operation time is saved, and the operation difficulty of medical staff is reduced.

Description

Screw clamping mechanism for orthopedics department

Technical Field

The invention relates to the technical field of orthopedic surgery tools, in particular to a screw clamping mechanism for orthopedics.

Background

At present, during the orthopedics fixing device that resets such as fixed connection piece or fixed plate often need use set screw during orthopedic surgery, because set screw volume is less, when using set screw to fix, centre gripping set screw drops easily, leads to the operation time extension, and when set screw was screwed up in the rotation, centre gripping set screw's apparatus skidded with the screw easily, leads to the not hard up skew direction of screw easily among the rotatory process, and the operation is wasted time and energy, greatly increased medical staff operation's the degree of difficulty.

A novel screw centre gripping pincers for orthopedics like authorizing notice No. CN207236839U, including pincers handle, arc tong arm, clamping cylinder, rotatory holding piece, control the pincers handle and pass through the hinge articulated together, the rear end of pincers handle is equipped with the ring, and the pincers handle tip of hinge front end is equipped with the arc tong arm, and the tip of arc tong arm is equipped with semicircular clamping cylinder, is equipped with rotatory holding piece in the clamping cylinder. The screw clamping device is reasonable in structural design, simple and convenient to use, the operation visual field cannot be shielded during operation, the operation cannot be interfered, the screw is firmly clamped, the rotary clamping piece can rotate along with the screw when the screw is tightened, the screw cannot fall off or deviate, the operation time is saved, and the operation difficulty of medical staff is reduced. However, the above solution has the following problems: (1) the opening degree of the two clamping cylinders is limited by the opening angle of the clamp handle, so that the placing of fixing screws with different sizes can be influenced, (2) medical staff adopt a hand-held ring to control the clamping of the fixing screws, fatigue is easily caused for a long time, and the clamping is loosened, (3) as balls are in rolling connection with the inner wall of the clamping cylinder, the situation that a rotary clamping sheet and the screws slip once the balls are loosened is caused.

Disclosure of Invention

The invention aims to provide a screw clamping mechanism for orthopedics to solve the problems in the background technology. The screw clamping mechanism for the orthopedics department is convenient to use, saves time and labor, saves operation time, and reduces the operation difficulty of screwing a fixing screw by medical staff.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a screw fixture for orthopedics, includes a semicircle centre gripping section of thick bamboo I, a semicircle centre gripping section of thick bamboo II and hinge, the hinge rotation connection is passed through on the top of a semicircle centre gripping section of thick bamboo I, a semicircle centre gripping section of thick bamboo II, the surface of a semicircle centre gripping section of thick bamboo I, a semicircle centre gripping section of thick bamboo II all installs along its axial vertically centre gripping arm, anti-skidding line has been seted up to the internal surface of a semicircle centre gripping section of thick bamboo I, a semicircle centre gripping section of thick bamboo II, set up the through-hole on a semicircle centre gripping section of thick bamboo I and/or a semicircle centre.

Preferably, the centre gripping arm includes straight section and crooked section, the surface at a semicircle centre gripping section of thick bamboo I, a semicircle centre gripping section of thick bamboo II is installed respectively to straight section, crooked section is fixed at the end of straight section, installs locking portion on two straight sections arbitrary one.

Preferably, the clamping arm is arranged on the outer surfaces of the semicircular clamping barrel I and the semicircular clamping barrel II close to the hinge.

Preferably, the clamping arm is arranged on the outer surfaces of the semicircular clamping barrel I and the semicircular clamping barrel II which are far away from the hinge.

Preferably, the locking portion includes a screw thread section of thick bamboo, the equal threaded connection in both ends of a screw thread section of thick bamboo has connecting rod I, the end of connecting rod I has rather than the arch of integration, the side of straight section is seted up and is used for pegging graft bellied slot I, the up end of straight section is seted up and is used for pegging graft bellied slot II.

Preferably, the bending section is outward bending and is sleeved with an anti-slip sleeve.

Preferably, the threads at the two ends of the threaded cylinder are threads in a reverse mode.

Preferably, a magnet block is installed in the slot I.

Compared with the prior art, the invention has the beneficial effects that: structural design is reasonable, high durability and convenient use, because the centre gripping arm and semicircle centre gripping section of thick bamboo I, II perpendicular installations of semicircle centre gripping section of thick bamboo, can not shelter from the operation field of vision during the operation, can not cause the interference to the operation yet, anti-skidding line and the screw thread looks adaptation on set screw surface, it is firm to the set screw centre gripping, semicircle centre gripping section of thick bamboo I when screwing up set screw, semicircle centre gripping section of thick bamboo II can take set screw rotatory together, the check lock lever further prevents to produce when set screw rotates and slides, can not cause the screw to drop or off normal, the clamping arm can be locked to locking portion then rotatory to the centre gripping arm again, make medical personnel can liberate the hand and produce not hard up to the long-time fatigue that results in of holding of centre gripping arm, influence set screw precession (play), the operation time has been saved, medical personnel.

Drawings

FIG. 1 is a schematic view of example 1 of the present invention;

FIG. 2 is a schematic top view of example 1 of the present invention;

FIG. 3 is a schematic view of the present invention showing the semicircular clamping cylinder I and the semicircular clamping cylinder II of FIG. 2 opened;

FIG. 4 is a schematic view of a locking part according to embodiment 1 of the present invention;

FIG. 5 is a schematic view of a slot I in the clamp arm according to the present invention;

FIG. 6 is a schematic view of example 2 of the present invention;

FIG. 7 is a schematic view of the present invention showing the semicircular clamping cylinder I and the semicircular clamping cylinder II in FIG. 6 opened.

In the figure: 1 semicircle centre gripping section of thick bamboo I, 2 semicircle centre gripping section of thick bamboo II, 3 anti-skidding lines, 4 hinges, 5 centre gripping arms, 50 straight sections, 51 crooked section, 52 antiskid cover, 53 slot I, 54 slot II, 6 locking portions, 60 screw thread section of thick bamboo, 61 connecting rod I, 62 archs, 7 check lock levers.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 to 5, the present invention provides a technical solution:

the utility model provides a screw fixture for orthopedics, includes semicircle clamping cylinder I1, semicircle clamping cylinder II 2 and hinge 4, the top of semicircle clamping cylinder I1, semicircle clamping cylinder II 2 is passed through hinge 4 and is rotated the connection, semicircle clamping cylinder I1, the surface of semicircle clamping cylinder II 2 all install along its axial vertically centre gripping arm 5, can open the angle through handheld two centre gripping arms 5 to semicircle clamping cylinder I1, semicircle clamping cylinder II 2 and control and press from both sides tightly, semicircle clamping cylinder I1, semicircle clamping cylinder II 2 can be rotatory as the pivot with hinge 4 (hinge 4 if be corner hinge, cun hinge), its turned angle is being greater than 180, can be fit for not unidimensional screw and put into, when two clamping arm 5 press from both sides tight rotation/loosen the screw, can not shelter from the operation field of vision, can not cause the interference to the operation yet, semicircle clamping cylinder I1, semicircle clamping cylinder II 2, Anti-skidding line 3 has been seted up to the internal surface of semicircle clamping cylinder II 2, the screw thread looks adaptation on anti-skidding line 3 and set screw surface, the same with the set screw material, like this at semicircle clamping cylinder I1, when semicircle clamping cylinder II 2 closes the tight set screw of clamp, anti-skidding line 3 can tightly bite the set screw surface, prevent that set screw from sliding, because two centre gripping arms and semicircle clamping cylinder I1, semicircle clamping cylinder II 2 are vertical fixation, so set screw bores (squeezes in) into the bone with vertical fixation's angle for falling "L" shape, can not drop or skew direction, set up the through-hole on semicircle clamping cylinder I1 and/or the semicircle clamping cylinder II 2, three kinds of circumstances promptly: the inner side of the clamping arm 5 can clamp the semicircular clamping cylinder I1 and the semicircular clamping cylinder II 2 to achieve auxiliary fixation in a mounting mode as shown in figure 2, so that the semicircular clamping cylinder I1 and the semicircular clamping cylinder II 2 can be fixed more tightly; the clamping arm 5 comprises a straight section 50 and a bent section 51, the straight section 50 is respectively arranged on the outer surfaces of a semicircular clamping cylinder I1 and a semicircular clamping cylinder II 2, the bent section 51 is fixed at the tail end of the straight section 50, a locking part 6 is arranged on any one of the two straight sections 50, as shown in figures 2 and 3, the straight section 50 is used for placing the locking part 6, the two clamping arms 5 are fixed through the locking part 6, and further medical personnel can relieve the fatigue caused by the long-time holding of the clamping arms 5 by hands and further loosen the hands, so that the screwing-in (screwing-out) of the fixing screws is influenced, the two bent sections 51 are bent outwards, so that a certain operation space can be reserved when the semicircular clamping cylinder I1 and the semicircular clamping cylinder II 2 are gradually closed, the better closing of the semicircular clamping cylinder I1 and the semicircular clamping cylinder II 2 is ensured, a better force application point is generated for the application of the hands and the clamping arms 5, and the closing of the semicircular clamping cylinder II is not, make set screw better place (be in) a semicircle centre gripping section of thick bamboo I1, between a semicircle centre gripping section of thick bamboo II 2, when with a semicircle centre gripping section of thick bamboo I1 through two centre gripping arms 5, a semicircle centre gripping section of thick bamboo II 2 bites the closed back, the set screw rethread locking lever 7 inside screw in that is in supports set screw firmly, further fix set screw, avoid when 5 are rotatory through the centre gripping arm, take place to slide between set screw and the anti-skidding line 3, set screw can not become flexible like this, the centre gripping is firm, the screw can not drop or the skew direction.

The locking part 6 comprises a threaded barrel 60, threads at two ends of the threaded barrel 60 are threads in a reverse mode, connecting rods I61 are connected at two ends of the threaded barrel 60 in a threaded manner, the threads in the reverse mode can ensure that two connecting rods I61 can simultaneously contract inwards/outwards when the threaded barrel 60 is rotated, so that the clamping arm 5 is loosened after being fixed/fixed, the purpose of locking/unlocking the semicircular clamping barrel I1 and the semicircular clamping barrel II 2 is achieved, the tail end of the connecting rod I61 is provided with a protrusion 62 integrated with the connecting rod I61, a slot I53 for inserting the protrusion 62 is formed in the side surface of the straight section 50, slots II 54 for inserting the protrusion 62 are respectively formed in the upper end surfaces of the two straight sections 50, the bent section 51 is bent outwards and is sleeved with an anti-slip sleeve 52, a magnet block is installed in the slot I53, during initial state, two protruding 62 on two connecting rods I61 insert two slots I53 in, make locking portion 6 fix on one of them of straight section 50, the magnet piece plays the absorption to protruding 62 of iron-based, prevents that locking portion 6 from droing, uses locking portion 6 as needs, takes off locking portion 6, inserts two protruding 62 respectively in two slots II 54 that straight section 50 corresponds, rotatory thread section of thick bamboo 60 until with straight section 50 complete fixation can. Like this at the rotatory in-process screw of centre gripping arm 5 not hard up, the centre gripping is firm, and the screw can not drop or the skew direction, and the screw is rotatory to be screwed into behind the majority, promptly for preliminary fixed, can loosen the screw, adopts rotary apparatus to further squeeze into the bone completely with set screw in again, convenient to use, labour saving and time saving has saved operation time, has reduced medical staff's the operation degree of difficulty of screwing up set screw.

Example 2

Referring to fig. 6 to 7, the present invention provides a technical solution, which is different from embodiment 1:

the clamping arm 5 is installed on the outer surfaces of the semicircular clamping cylinder I1 and the semicircular clamping cylinder II 2 far away from the hinge 4. Because two centre gripping arms 5 are in the opening part of a semicircle centre gripping section of thick bamboo I1, a semicircle centre gripping section of thick bamboo II 2, the mounting means like this carries out the closure more laborsaving to a semicircle centre gripping section of thick bamboo I1, a semicircle centre gripping section of thick bamboo II 2, fixes set screw through what the centre gripping arm 5 was light, prevents that it from sliding with 3 production of anti-skidding lines.

When the clamp is used, the semicircular clamping cylinder I1 and the semicircular clamping cylinder II 2 are firstly opened by a certain angle through the two clamping arms 5, then a fixing screw is placed between the two clamping arms, then the clamping is carried out, so that the fixing screw is tightly gripped with the anti-slip grains 3 and cannot slide, then the locking rod 7 is screwed inwards, one end of the locking rod is firmly propped against the fixing screw, the fixing screw is further prevented from sliding when rotating, then the two bulges 62 of the two connecting rods I are correspondingly inserted into the slot II 54, the threaded cylinder 60 is rotated until the flat section 50 is completely fixed, then the fixing screw is screwed up by rotating the contra-rotating position, when the part where the fixing screw is not screwed in is only left at the clamping position, the clamping arms 5 open the semicircular clamping cylinder I1 and the semicircular clamping cylinder II 2 to separate from the screw, and the screw is continuously screwed up by using other orthopedic forceps.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a screw fixture for orthopedics which characterized in that: the clamping device comprises a semicircular clamping cylinder I (1), a semicircular clamping cylinder II (2) and a hinge (4), wherein the top ends of the semicircular clamping cylinder I (1) and the semicircular clamping cylinder II (2) are rotatably connected through the hinge (4), clamping arms (5) which are vertical to the semicircular clamping cylinder I (1) and the semicircular clamping cylinder II (2) along the axial direction of the semicircular clamping cylinder I (1) and the semicircular clamping cylinder II (2) are respectively arranged on the outer surfaces of the semicircular clamping cylinder I (1) and/or the semicircular clamping cylinder II (2), anti-slip grains (3) are arranged on the inner surfaces of the semicircular clamping cylinder I (1) and/or the semicircular clamping cylinder II (2), a locking rod (7) is movably inserted in the through hole, each clamping arm (5) comprises a straight section (50) and a bent section (51), the straight sections (50) are respectively arranged on the outer surfaces of the semicircular clamping cylinder I (1) and the semicircular clamping cylinder II (2), and the bent sections (51) are fixed at the tail ends of the, install locking part (6) on two straight sections (50) arbitrary one, locking part (6) includes a screw thread section of thick bamboo (60), the equal threaded connection in both ends of a screw thread section of thick bamboo (60) has connecting rod I (61), the end of connecting rod I (61) has rather than integrated arch (62), the side of straight section (50) is seted up and is used for pegging graft I (53) of arch (62), the up end of two straight sections (50) is seted up respectively and is used for pegging graft II (54) of arch (62), during initial state, two protruding (62) on two connecting rod I (61) are inserted in two slots I (53), make locking part (6) fix on one of two straight sections (50), when needing to use locking part (6), take off locking part (6), insert two protruding (62) respectively in two slots II (54) that two straight sections (50) correspond, the threaded cylinder (60) is rotated until the straight section (50) is completely fixed.

2. The screw clamping mechanism for orthopedics department according to claim 1, characterized in that: the clamping arm (5) is arranged on the outer surfaces of the semicircular clamping cylinder I (1) and the semicircular clamping cylinder II (2) close to the hinge (4).

3. The screw clamping mechanism for orthopedics department according to claim 1, characterized in that: the outer surfaces of a semicircular clamping cylinder I (1) and a semicircular clamping cylinder II (2) far away from the hinge (4) are installed on the clamping arms (5).

4. The screw clamping mechanism for orthopedics department according to claim 1, characterized in that: the bending section (51) is outward bent and sleeved with an anti-slip sleeve (52).

5. The screw clamping mechanism for orthopedics department according to claim 1, characterized in that: the threads at the two ends of the thread cylinder (60) are threads in a reverse mode.

6. The screw clamping mechanism for orthopedics department according to claim 1, characterized in that: and a magnet block is arranged in the slot I (53).