CN205268258U

CN205268258U - Punctiform pincers that reset

Info

Publication number: CN205268258U
Application number: CN201520643344.4U
Authority: CN
Inventors: 陈华; 齐红哲; 唐佩福
Original assignee: Beijing Guo Xietang Development In Science And Technology Co Ltd
Current assignee: Beijing Guo Xietang Development In Science And Technology Co Ltd
Priority date: 2015-08-24
Filing date: 2015-08-24
Publication date: 2016-06-01
Anticipated expiration: 2025-08-24

Abstract

The utility model discloses a punctiform pincers that reset belongs to medical instrument technical field. Including left side pincers handle, right forceps handle, spring leaf, spliced pole, return spring and rack cardboard, left side pincers handle and right forceps handle pass through rivet swing joint, and the terminal appearance of pincers handle is bulb and conical integrated configuration, installs the spring leaf on left side pincers handle and right forceps handle's the opposite face respectively, spliced pole fixed connection passes through cylindric lock and spliced pole swing joint at the end of the handheld portion of left side pincers handle, rack cardboard, and the return spring is installed in the junction of rack cardboard with the spliced pole, the return spring make the rack cardboard elastic keep the position that can contact the terminal ratchet of right forceps handle and with the ratchet block in the rack of rack cardboard. The utility model discloses can, the use realize from the locking bit that the medical staff of being convenient for carries out one -hand operation when dwindling clamping distance.

Description

A kind of point-like reduction forceps

Technical field

Utility model relates to a kind of medical reduction forceps, the point-like reduction forceps of the fractures being specifically related in a kind of clinical medicine, belongs to technical field of medical instruments.

Background technology

Along with the aging of Chinese society, senile osteoporosis fragility fractures patient gets more and more, such as pelvis, knee joint, ankle joint, the subject matter that they face be exactly bone of poor quality, intensity is low. In the reduction of the fracture with maintain in reseting procedure, use jaw type resetting means very necessary, it is to avoid assistant's support, to reduce the perspective process phototoxis to assistant, it also avoid shifting again after causing the reduction of the fracture because of assistant's fatigue. But the bare terminal end of current this reduction forceps mostly is taper dot structure, and most advanced and sophisticated ratio is relatively sharp, exerts oneself slightly, and tip will embed loose sclerotin, does not have reset maintenance effect, on the contrary destruction sclerotin and even result in shifting again of fracture; The arch section of clamping limb can not well adapt to limbs external diameter, frequently results in the Accessory injury such as the compressing to skin, operation in inconvenience Rhizoma Atractylodis Macrocephalae, adds operating difficulty; Additionally, power section is unstable, gripping strength is not enough. Therefore, the structure of current reduction forceps can not meet clinical needs very well.

Utility model content

In view of this, this utility model provides a kind of point-like reduction forceps, it is possible to realize lock-bit when clamp distance is reduced in use, it is simple to medical worker carries out one-handed performance.

A kind of point-like reduction forceps, including left clamp handle, right clamp handle, spring leaf, rivet, joint pin, return spring, straight pin and tooth bar clamp;

In described left clamp handle and right clamp handle, all processing has hinge hole, part on hinge hole is clamping part, part below hinge hole is Handheld Division, the profile of described clamping part is symmetrical arcuate structure, the profile of its end is the combinative structure of bulb and cone, the end of described left clamp handle Handheld Division is ratchet structure, and the length of described right clamp handle Handheld Division is more than the length of left clamp handle Handheld Division;

Its annexation is: described left clamp handle and right clamp handle are movably connected by rivet, the opposite face of left clamp handle and right clamp handle is respectively mounted spring leaf, one end of two spring leafs is fixed by screws in left clamp handle and the end of right clamp handle, and the other end is conflicted mutually; During the Handheld Division move toward one another of left clamp handle and right clamp handle, the also synchronous relative motion of its clamping part, the Handheld Division of left clamp handle and right clamp handle is when being closed into extreme position, and the axis of two terminal circle pyramidal structure is located along the same line; Described joint pin is fixedly connected on the end of right clamp handle Handheld Division, described tooth bar clamp is flexibly connected with joint pin by straight pin, described return spring is arranged on the junction of tooth bar clamp and joint pin, during return spring makes that tooth bar clamp is elastic and is maintained at the position that can contact left clamp handle end ratchet and ratchet is fastened on the tooth bar of tooth bar clamp.

Further, the Handheld Division of described left clamp handle and right clamp handle is when being closed into extreme position, and the end-point distances at clamping part two ends is more than 40mm, and the Breadth Maximum of clamping part outline is 132mm.

Further, the tooth on described tooth bar clamp is continuous print helical teeth, and the incline direction of helical teeth is that tooth left surface is vertical with tooth bar card board plane, and inclined-plane, right side is vertical with tooth bar card board plane in 45 ��.

Further, the front of motor of described tooth bar clamp is chamfered transition, it is therefore an objective to make left clamp handle, when Guan Bi, catching phenomenon not occur.

Beneficial effect:

1, the end of clamping part of the present utility model is changed over point dots structure by tip, makes reduction forceps can play reset maintenance effect when clamping, will not embed again inside sclerotin too deep to such an extent as to damage sclerotin and causing and shift.

2, clamping part front end of the present utility model is linear structure, it is possible to the component produced when reducing clamping, it is ensured that chucking power is sufficiently large, thus keeping stablizing of clamping.

3, clamping part of the present utility model is form the envelope profile that class is oval in clamp position, limbs profile can be well adapted to, fixed fracture site by percutaneous temporarily, both the compressing to retaining part skin had been reduced, reduce again the blood fortune when subperiosteum grips temporarily to destroy, be conducive to reducing operation technique difficulty.

4, Handheld Division of the present utility model has installed spring leaf additional so that reduction forceps has more powerful and stable chucking power when clamping.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model;

Fig. 2 is the shape assumption diagram of this utility model clamping part end;

Fig. 3 is left clamp handle of the present utility model and the right clamp handle connection diagram by rivet.

Wherein, the left clamp handle of 1-, the right clamp handle of 2-, 3-rivet, 4-spring leaf I, 5-spring leaf II, 6-screw, 7-tooth bar clamp, 8-joint pin, 9-straight pin.

Detailed description of the invention

Develop simultaneously embodiment below in conjunction with accompanying drawing, this utility model is described in detail.

As shown in Figure 1, this utility model provides a kind of point-like reduction forceps, including left clamp handle 1, right clamp handle 2, spring leaf I 4, spring leaf II 5, rivet 3, joint pin 8, return spring, straight pin 9 and tooth bar clamp 7;

In described left clamp handle 1 and right clamp handle 2, all processing has hinge hole, part on hinge hole is clamping part, and the part below hinge hole is Handheld Division, and the profile of described clamping part is symmetrical arcuate structure, as shown in Figure 2, the profile of its end is the combinative structure of bulb and cone; The end of described left clamp handle 1 Handheld Division is ratchet structure, and the length of described right clamp handle 2 Handheld Division is more than the length of left clamp handle Handheld Division;

Tooth on described tooth bar clamp 7 is continuous print helical teeth, and the direction of motion when incline direction of helical teeth closes with described left clamp handle is consistent; The front of motor of described tooth bar clamp 7 is chamfered transition, it is therefore an objective to make left clamp handle 1, when Guan Bi, catching phenomenon not occur.

Its annexation is: described left clamp handle 1 and right clamp handle 2 are movably connected by rivet 3, as shown in Figure 3; Being respectively mounted spring leaf I 4 and spring leaf II 5 on the opposite face of left clamp handle 1 and right clamp handle 2, one end of spring leaf I 4 and spring leaf II 5 is fixed on the end of left clamp handle 1 and right clamp handle 2 by screw 6, and the other end is conflicted mutually; During the Handheld Division move toward one another of left clamp handle 2 and right clamp handle 1, the also synchronous relative motion of its clamping part, the Handheld Division of left clamp handle 1 and right clamp handle 2 is when being closed into extreme position, the end-point distances at clamping part two ends is more than 40mm, the axis of two terminal circle pyramidal structure is located along the same line, and the Breadth Maximum of clamping part outline is 132mm; Described joint pin 8 is fixedly connected on the end of right clamp handle 2 Handheld Division, described tooth bar clamp 7 is flexibly connected with joint pin 8 by straight pin 9, described return spring is arranged on the junction of tooth bar clamp 7 and joint pin 8, during return spring makes that tooth bar clamp 7 is elastic and is maintained at the position that can contact left clamp handle 1 end ratchet and ratchet is fastened on the tooth bar of tooth bar clamp 7.

Operation principle: when using this reduction forceps, first tooth bar clamp 7 is pulled clockwise with hands, now the ratchet of left clamp handle 1 Handheld Division end is deviate from from the tooth bar of tooth bar clamp 7 and opens up into extreme position under the effect of spring leaf, after unclamping tooth bar clamp 7, tooth bar clamp 7 automatically resets under the effect of return spring; Medical worker then can use the Handheld Division that one hand holds reduction forceps to carry out clipping operation, when starting to draw in Handheld Division, first the ratchet of left clamp handle 1 end touches the front end of tooth bar clamp 7, left clamp handle 1 slips over helical teeth by ratchet in the process of motion and continues lower pressing tooth bar clamp 7, when being held in place, unclamping the Handheld Division of reduction forceps, reduction forceps is locked with coordinating between tooth bar clamp 7 upper rack by the ratchet of left clamp handle 1 Handheld Division end.

In sum, these are only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model. All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.

Claims

1. a point-like reduction forceps, it is characterized in that, including left clamp handle (1), right clamp handle (2), spring leaf, rivet (3), joint pin (8), return spring, straight pin (9) and tooth bar clamp (7);

On described left clamp handle (1) and right clamp handle (2), all processing has hinge hole, part on hinge hole is clamping part, part below hinge hole is Handheld Division, the profile of described clamping part is symmetrical arcuate structure, the profile of its end is the combinative structure of bulb and cone, the end of described left clamp handle (1) Handheld Division is ratchet structure, and the length of described right clamp handle Handheld Division is more than the length of left clamp handle Handheld Division;

Its annexation is: described left clamp handle (1) and right clamp handle (2) are movably connected by rivet (3), the opposite face of left clamp handle (1) and right clamp handle (2) is respectively mounted spring leaf, one end of two spring leafs is fixed on the end of left clamp handle (1) and right clamp handle respectively through screw, and the other end is conflicted mutually; During the Handheld Division move toward one another of left clamp handle (1) and right clamp handle (2), the also synchronous relative motion of its clamping part, the Handheld Division of left clamp handle (1) and right clamp handle (2) is when being closed into extreme position, and the axis of two terminal circle pyramidal structure is located along the same line; Described joint pin (8) is fixedly connected on the end of right clamp handle (2) Handheld Division, described tooth bar clamp (7) is flexibly connected with joint pin (8) by straight pin (9), described return spring is arranged on the junction of tooth bar clamp (7) and joint pin (8), during return spring makes that tooth bar clamp (7) is elastic and is maintained at the position that can contact left clamp handle (1) Handheld Division end ratchet and ratchet is fastened on the tooth bar of tooth bar clamp (7).

2. point-like reduction forceps as claimed in claim 1, it is characterized in that, tooth on described tooth bar clamp (7) is continuous print helical teeth, the incline direction of helical teeth is that tooth left surface is vertical with tooth bar clamp (7) plane, and inclined-plane, right side is vertical with tooth bar clamp (7) plane in 45 ��.

3. point-like reduction forceps as claimed in claim 1, it is characterised in that the front of motor of described tooth bar clamp (7) is chamfered transition.

4. the point-like reduction forceps as described in claim 1,2 or 3, it is characterized in that, the Handheld Division of described left clamp handle (1) and right clamp handle (2) is when being closed into extreme position, and the end-point distances at clamping part two ends is more than 40mm, and the Breadth Maximum of clamping part outline is 132mm.