CN203873849U

CN203873849U - Fracture reduction forceps

Info

Publication number: CN203873849U
Application number: CN201420293799.3U
Authority: CN
Inventors: 马秋野; 韩雪松; 马奔; 刘振宇; 谢山林
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-04
Filing date: 2014-06-04
Publication date: 2014-10-15
Anticipated expiration: 2024-06-04

Abstract

The utility model discloses a pair of fracture reduction forceps. The pair of fracture reduction forceps comprises a forceps body I and a forceps body II hinged to the forceps body I. A forceps opening of the forceps body I and a forceps opening of the forceps body II are provided with through holes communicating the inner sides and the outer sides of the forceps openings. The through holes are internally provided with clamping blocks which can axially move along the through holes and clamp a fractured bone in cooperation with the forceps openings. According to the pair of fracture reduction forceps, when fracture reduction is completed and a steel plate needs to be inserted to fix the fractured bone, the clamping blocks move to the outer sides of the forceps openings, so that a certain space is reserved, the steel plate is smoothly inserted into the position of the fractured bone, the working intensity of medical workers is reduced, and the pain of a patient is relieved.

Description

Fracture resetting tongs

Technical field

This utility model relates to medical instruments field, particularly a kind of fracture resetting tongs.

Background technology

After fracture, generally need to adopt bone holding forceps that knochenbruch is resetted, and be fixed by steel plate, screw etc.Conventional reduction forceps, main two hinged forming of tong arm by X-type, front end is as clamp, rear end is as handle, after fracture, two sections of knochenbruch that disconnect, due to pullling under traction at muscle, there will be staggered, in the time that knochenbruch is resetted, need to use two sections of knochenbruch of reduction forceps clamping, and by medical worker, two sections of end bones are pulled open to reset position and with steel plate and fixed, and at present in the time of knochenbruch position insertion steel plate, conventionally need to take off reduction forceps or reduction forceps is unclamped after steel plate is inserted into knochenbruch position from jaw, but this mode of operation is in the time of fixation steel plate, knochenbruch is owing to losing the fixing of reduction forceps, easily again return to original dislocation state, brought the inconvenience of work to doctor, also increased patient's misery simultaneously.

Therefore, for overcoming the above problems, need a kind of can be without the reduction forceps that unclamps or take off reduction forceps and can easily steel plate be inserted into knochenbruch position.

Utility model content

In view of this, the purpose of this utility model is to overcome defect of the prior art, and a kind of reduction forceps without unclamping or take off reduction forceps and can easily steel plate be inserted into knochenbruch position is provided.

Reduction forceps of the present utility model, comprises the caliper I and the caliper II that are hinged, and the jaw of the jaw of caliper I and caliper II is provided with and is communicated with its inner side and the through hole in outside, is provided with and can moves axially and coordinate the grip block that clamps knochenbruch with jaw along through hole in through hole;

Further, also comprise for regulating grip block along the axially movable governor motion of through hole, governor motion comprises and is fixed on the screw rod of grip block rear end face and coordinates the nut that screws that carries out worm drive with screw rod;

Further, described governor motion also comprises fixing head and Compress Spring, fixing head is fixed on jaw outside and through hole covering and fixing head is provided with to the via hole coaxial with through hole, screw rod is fixedly connected with screwing nut through this via hole, and Compress Spring is located in through hole and bullet peaks between fixing head and grip block;

Further, described through hole is shoulder hole, and the aperture of shoulder hole outer end is greater than inner aperture, and slide block is provided with the ladder platform matching with shoulder hole;

Further, described caliper I and caliper II include clamping part and tong arm, and tong arm upper surface is fixed with attachment screw and is detachably fixedly connected on clamping part lower end by this attachment screw;

Further, the hinge that is fixed with ratchet and this ratchet and caliper I in described caliper I coaxially arranges, and caliper II is provided with the ratchet matching with ratchet;

Further, described grip block inner face is the curved surface that can seamlessly transit with jaw medial surface, and when the ladder platform of grip block relies on the cascaded surface of shoulder hole, grip block inner face is the curved surface seamlessly transitting with jaw medial surface;

Further, described in, screwing nut is Cornu Caprae seu Ovis nut.

The beneficial effects of the utility model are: reduction forceps of the present utility model, jaw is provided with the through hole that is communicated with its inner side and outside, in through hole, be provided with and can move axially and coordinate the grip block that clamps knochenbruch with jaw along through hole, in the time that medical worker need to reset to knochenbruch, grip block inner face can be moved concordant with jaw medial surface, it is clamped knochenbruch together with jaw medial surface, thereby can effectively increase the contact area of reduction forceps and knochenbruch, ensure the reliability of reduction forceps clamping, can reduce again the damage of reduction forceps to knochenbruch surface simultaneously; On the other hand, when knochenbruch has resetted, need to insert steel plate knochenbruch is fixed time, can be by grip block side shifting outside jaw, thus abdicate certain space, make steel plate can be inserted into smoothly knochenbruch position, now, knochenbruch is still subject to the fixing of reduction forceps jaw, can effectively avoid knochenbruch in fixation steel plate process, to return to dislocation state, thereby alleviate medical worker's working strength, alleviate patient's misery.

Brief description of the drawings

Below in conjunction with drawings and Examples, this utility model is further described.

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of caliper I of the present utility model;

Fig. 3 is the partial enlarged drawing at the A place in Fig. 2.

Detailed description of the invention

Fig. 1 is structural representation of the present utility model, and Fig. 2 is the structural representation of caliper I 6 of the present utility model, and Fig. 3 is the partial enlarged drawing at the A place in Fig. 2.Fracture resetting tongs in the present embodiment, comprise the caliper I 6 and the caliper II 3 that are hinged, on the jaw of the jaw of caliper I 6 and caliper II 3, be equipped with the through hole that is communicated with its inner side and outside, " jaw " as herein described refers to caliper I 6 and the surface that directly contacts knochenbruch in caliper II 3, " inner side " refers to towards knochenbruch one side, opposition side is " outside ", in through hole, be provided with and can move axially and coordinate the grip block 4 that clamps knochenbruch with jaw along through hole, as shown in Figure 3, grip block 4 is slidably matched with through hole, and slides axially by screw-drive mechanism.

In the present embodiment, described fracture resetting tongs also comprises for regulating grip block 4 along the axially movable governor motion of through hole, governor motion comprise be fixed on the screw rod 2 of grip block 4 rear end faces and coordinate with screw rod 2 carry out worm drive screw nut 1, this screw-drive mechanism can regulate the slip of grip block 4 with respect to jaw accurately, in the time that medical worker need to reset to knochenbruch, the rotatable nut 1 that screws, make grip block 4 to jaw medial movement, make it together to clamp knochenbruch with jaw, after reset completes, can counter-rotate and screw nut 1, make grip block 4 side shifting outside jaw, and then abdicate certain space, be convenient to medical worker and insert steel plate fixation of bone fragments.

In the present embodiment, described governor motion also comprises fixing head 9 and Compress Spring, fixing head 9 is fixed on jaw outside and through hole covering and fixing head 9 is provided with to the via hole coaxial with through hole, screw rod 2 through this via hole with screw nut 1 and be fixedly connected with, Compress Spring is located in through hole and bullet peaks between fixing head 9 and grip block 4, when medical worker unclamps while screwing nut 1, Compress Spring can promote grip block 4 to jaw inner slide;

In the present embodiment, described through hole is shoulder hole, the aperture of shoulder hole outer end is greater than inner aperture, slide block is provided with the ladder platform matching with shoulder hole, the ladder platform of grip block 4 slides into while relying on shoulder hole aperture end face, for grip block 4 is to the extreme position of jaw medial movement, in the time that grip block 4 arrives extreme position to jaw medial movement, grip block 4 inner faces and jaw form level and smooth curved surface.

In the present embodiment, described caliper I 6 and caliper II 3 include clamping part 5 and tong arm 7, tong arm 7 upper surfaces are fixed with attachment screw 8 and are detachably fixedly connected on clamping part 5 lower ends by this attachment screw 8, after knochenbruch is resetted, generally need to knochenbruch be fixed with steel plate, now, medical worker can pull down tong arm 7, avoid interfering with tong arm 7, disturb carrying out smoothly of operation.

In the present embodiment, the hinge that is fixed with ratchet and this ratchet and caliper I 6 in described caliper I 6 coaxially arranges, and caliper II 3 is provided with the ratchet matching with ratchet; (ratchet and ratchet are not shown in the drawings), ratchet and ratchet make caliper I 6 and caliper II 3 along clamping direction one-directional rotation, after medical worker steps up knochenbruch, can hold tong arm 7, due to the inverse-stopping functions of click, fracture resetting tongs will can not get loose, and in the time fracture resetting tongs need being taken off, can pull ratchet it is got loose.

In the present embodiment, described grip block 4 inner faces are the curved surface seamlessly transitting with jaw medial surface, when the ladder platform of grip block 4 relies on the cascaded surface of shoulder hole, grip block 4 inner faces and the transition of jaw medial surface balance, be beneficial to make grip block 4 medial surface and jaw to form a complete smooth surface, make reduction forceps more reliable to the clamping of knochenbruch, can avoid the cause damage of reduction forceps to knochenbruch simultaneously.

In the present embodiment, described in screw nut 1 for Cornu Caprae seu Ovis nut, Cornu Caprae seu Ovis nut is provided with the flank of being convenient to the manual swivel nut of medical worker, adopts Cornu Caprae seu Ovis nut as the convenience that screws nut 1 and can greatly strengthen this fracture resetting tongs.

Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although this utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims

1. a fracture resetting tongs, is characterized in that: comprise the caliper I and the caliper II that are hinged; On the jaw of the jaw of described caliper I and caliper II, be equipped with the through hole that is communicated with its inner side and outside; In described through hole, be provided with and can move axially and coordinate the grip block that clamps knochenbruch with jaw along through hole.

2. fracture resetting tongs according to claim 1, is characterized in that: also comprise for regulating grip block along the axially movable governor motion of through hole; Described governor motion comprises and is fixed on the screw rod of grip block rear end face and coordinates the nut that screws that carries out worm drive with screw rod.

3. fracture resetting tongs according to claim 2, is characterized in that: described governor motion also comprises fixing head and Compress Spring; Described fixing head is fixed on jaw outside and through hole covering and fixing head is provided with to the via hole coaxial with through hole; Described screw rod through this via hole with screw nut and be fixedly connected with; Described Compress Spring is located in through hole and bullet peaks between fixing head and grip block.

4. fracture resetting tongs according to claim 3, is characterized in that: described through hole is shoulder hole; The aperture of described shoulder hole outer end is greater than inner aperture; Described slide block is provided with the ladder platform matching with shoulder hole.

5. fracture resetting tongs according to claim 4, is characterized in that: described caliper I and caliper II include clamping part and tong arm; Described tong arm upper surface is fixed with attachment screw and is detachably fixedly connected on clamping part lower end by this attachment screw.

6. fracture resetting tongs according to claim 5, is characterized in that: the hinge that is fixed with ratchet and ratchet and caliper I in described caliper I coaxially arranges; Described caliper II is provided with the ratchet matching with described ratchet.

7. fracture resetting tongs according to claim 6, is characterized in that: described grip block inner face is the curved surface seamlessly transitting with jaw medial surface.

8. fracture resetting tongs according to claim 7, is characterized in that: described in to screw nut be Cornu Caprae seu Ovis nut.