CN203763148U - Operative dilation forceps with fixing function - Google Patents

Abstract

The utility model relates to the technical field of operative instruments and discloses operative dilation forceps with a fixing function. The operative dilation forceps are composed of two forceps arms which are hinged. Each forceps arm comprises a dilation part and a handle part, a dilation elastic piece component is arranged between the two handle parts, tail ends of the two handle parts are provided with adjusting parts for stabilizing the dilation width, the front end of one of the dilation parts is provided with a fixing part which is capable of sticking into a sticking hole of one end of a device to be dilated and has a fixing function, and the front end of the other dilation part is concavely provided with a U-shaped cut capable of sliding at the other end of the device to be dilated and having a dilation function. The operative dilation forceps have two functions of a dilation instrument and a fixing instrument, use of instruments is effectively saved, and during operation, stress position is easy to hold, stress uniformity is easy to be ensured, observation during operation is more convenient and time and labor are saved.

Description

A kind of operation distraction forcep simultaneously with fixed function

Technical field

This utility model relates to the technical field of utensil for operation, refers in particular to a kind of operation distraction forcep simultaneously with fixed function.

Background technology

In operation on vertebra, it is more that the rod that titanium alloy is made and pedicle screw use, and often need to strut, and conventional utilization flow process is: first nail rod is inserted in the groove of pedicle screw tail, nail excellent in groove slidably.In the time of need strutting, with the longitudinal pressure bar of a holding bar device, between the pedicle screw of holding excellent device and not yet locking, place a dilator, by dilator, exert oneself, dilator lower end two struts the outside transverse shifting of sheet, strengthens and holds the distance between excellent device and pedicle screw, reach the object strutting, again jackscrew is implanted in pedicle screw groove, be tightened, reach the connection that nail is excellent and fix.

In the sections splitting at pedicle of vertebral arch screw isthmus, repair in bone graft with internal fixation, owing to adopting new modus operandi, straight shape rod need be pre-bent to knee and be circular-arc V font, V-arrangement rod needs equal in length at two ends, producing balanced forces, and need to reach aforementioned effect, conventional method need to be used four apparatuses (i.e. two holding bar devices and two dilators) in V-arrangement rod both sides simultaneously, at long 6～10cm, in the otch of dark 5～10cm, execute art, but because size incision is limited, be difficult to insert in the lump four apparatuses and coordinate to strut tension V-arrangement rod simultaneously, after can only first a side being fixed, process again offside, unclamp again adjustment, this mode of operation wastes time and energy, be difficult to when V-arrangement rod is placed in to stressed ideal position, guarantee stressed even.

Summary of the invention

The purpose of this utility model is to overcome weak point of the prior art and a kind of operation distraction forcep simultaneously with fixed function is provided, this distraction forcep possesses two kinds of functions of distraction instrument and fixed apparatus, effectively saved the use of apparatus, make in operation enforcement, stressed position is easy to hold, stressed being evenly easy to guarantees, observes operation in the art of being more convenient for, time saving and energy saving.

For achieving the above object, this utility model adopts following technical scheme:

A kind of operation distraction forcep simultaneously with fixed function, it consists of two half-calipers that are hinged, each half-caliper includes the portion of strutting and handle portion, between two handle portion, be provided with and strut shell fragment group, the end of this two handle portion is provided with the stable adjusting portion that struts width, describedly wherein one strut portion's front end and be provided with one and can skewer enter in the hole for sticking in of utensil to be strutted one end and play the fixed part of fixation, described another struts portion's front end and is arranged with a U-shaped otch that can slide and play the effect of strutting on the utensil other end to be strutted.

Described fixed part is cylindrical-shaped structure, and the size of this fixed part matches with the size of hole for sticking on utensil to be strutted.

The portion of strutting of described tool U-shaped otch is structure in the form of sheets.

Described two half-calipers are Y-shaped structure setting under unused state, and the portion that struts of two half-calipers and corresponding half-caliper are angled stubborn curved, and two to strut the stubborn curved direction of portion consistent with angular dimension.

The described shell fragment group that struts comprises that one end is arranged on wherein the first spring leaf of shank and the second spring leaf that one end is arranged on another handle portion on the other hand, the mutual apical grafting of the other end of the other end of this first spring leaf and the second spring leaf, the v-shaped structure that formation can be taken down the exhibits.

Described adjusting portion is comprised of the latch that is hinged on wherein the tooth bar and of shank end on the other hand and is located at another handle portion end, and this latch adjustable ground is fastened on tooth bar, and latch is one-body molded with the handle portion of corresponding connection.

The beneficial effects of the utility model are: it is by an architecture advances that struts portion wherein, make fixed part facilitate skewer enter in the hole for sticking in of utensil to be strutted one end and fix, the other end struts portion and slides at the utensil other end to be strutted, to select suitable stress point to strut this utensil, make this utility model possess two kinds of functions of distraction instrument and fixed apparatus, effectively saved the use of apparatus, make in operation enforcement, stressed position is easy to hold, stressed being evenly easy to guarantees, in the art of being more convenient for, observe operation, time saving and energy saving.

Accompanying drawing explanation

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

Fig. 2 is plan structure schematic diagram of the present utility model.

The specific embodiment

Below in conjunction with Figure of description, the utility model is described in further detail:

As shown in Figure 1-2, this utility model is about a kind of operation distraction forcep simultaneously with fixed function, and it consists of two half-calipers that are hinged 1.

As shown in Figure 1-2, each half-caliper 1 includes the portion of strutting 11 and handle portion 12, two half-calipers 1 are Y-shaped structure setting under unused state, and the portion that struts 11 of two half-calipers 1 and corresponding half-caliper 1 are angled stubborn curved, and two to strut the stubborn curved direction of portion 11 consistent with angular dimension.

As shown in Figure 1-2, wherein one strut portion's 11 front ends and be provided with a fixed part 13, fixed part 13 is cylindrical-shaped structure, and this fixed part 13 can enter in the hole for sticking in of utensil to be strutted one end by skewer, and playing fixation, the size of this fixed part 13 matches with the size of hole for sticking on utensil to be strutted; Another struts portion's 11 front ends and is arranged with a U-shaped otch 14 that can slide and play the effect of strutting on the utensil other end to be strutted, and this struts portion 11 structure in the form of sheets.

As shown in Figure 1-2, between two handle portion 12, be provided with and strut shell fragment group 2, this struts shell fragment group 2 and comprises that one end is arranged on wherein the first spring leaf 21 of shank 12 and the second spring leaf 22 that one end is arranged on another handle portion 12 on the other hand, the mutual apical grafting of the other end of the other end of this first spring leaf 21 and the second spring leaf 22, the v-shaped structure that formation can be taken down the exhibits.

As shown in Figure 1-2, the end of two handle portion 12 is provided with the stable adjusting portion that struts width, this adjusting portion is comprised of the latch 1a that is hinged on wherein the tooth bar 3 and of shank 12 ends on the other hand and is located at another handle portion 12 ends, this latch 1a adjustable ground is fastened on tooth bar 3, and latch 1a is one-body molded with the handle portion 12 of corresponding connection.

In use, wherein one strut portion 11 and enter in hole for sticking in corresponding to the end of V-arrangement to be strutted rod (or need in other operations strut utensil) fixing by fixed part 13 skewers, another U-shaped otch 14 that struts portion 11 is close to pedicle screw, then compress two handle portion 12, and then compression struts shell fragment group 2, make two to strut portion 11 and strut, then pass, strain V-arrangement rod (or need in other operations strut utensil), reach softened state.

Both sides use this utility model simultaneously, can make V-arrangement rod (or need in other operations strut utensil) both sides stressed evenly, after tension V-arrangement rod (or need in other operations strut utensil), then jackscrew are implanted in inverted draw cut to locking nail and rod.

Two pairs of same pliers, simple to operate in same incision, save time, avoided original four apparatus crowded in same incision, and be convenient to observe operation in art, this utility model possesses the function that struts and clamp two kinds of apparatuses, effectively saved the use of apparatus, make in operation enforcement, stressed position is easy to hold, and stressed being evenly easy to guarantees, in the art of being more convenient for, observe operation, time saving and energy saving.

The above is only to preferred embodiment of the present utility model; not scope of the present utility model is limited; therefore do not departing under the prerequisite of this utility model design spirit; equivalence that the common engineers and technicians in this area do structure described in the utility model, feature and principle changes or decorates, and all should fall in the protection domain that this utility model applies for a patent.

Claims (6)

1. an operation distraction forcep simultaneously with fixed function, it consists of two half-calipers that are hinged, each half-caliper includes the portion of strutting and handle portion, between two handle portion, be provided with and strut shell fragment group, the end of this two handle portion is provided with the stable adjusting portion that struts width, it is characterized in that: describedly wherein one strut portion's front end and be provided with one and can skewer enter in the hole for sticking in of utensil to be strutted one end and play the fixed part of fixation, described another struts portion's front end and be arranged with a U-shaped otch that can slide and play the effect of strutting on the utensil other end to be strutted.

2. distraction forcep according to claim 1, is characterized in that: described fixed part is cylindrical-shaped structure, and the size of this fixed part matches with the size of hole for sticking on utensil to be strutted.

3. distraction forcep according to claim 1, is characterized in that: the portion of strutting of described tool U-shaped otch is structure in the form of sheets.

4. distraction forcep according to claim 1, is characterized in that: described two half-calipers are Y-shaped structure setting under unused state, and the portion that struts of two half-calipers and corresponding half-caliper are angled stubborn curved, and two to strut the stubborn curved direction of portion consistent with angular dimension.

5. distraction forcep according to claim 1, it is characterized in that: described in strut shell fragment group and comprise that one end is arranged on wherein on the other hand the first spring leaf of shank and the second spring leaf that one end is arranged on another handle portion, the mutual apical grafting of the other end of the other end of this first spring leaf and the second spring leaf, the v-shaped structure that formation can be taken down the exhibits.

6. distraction forcep according to claim 1, it is characterized in that: described adjusting portion is comprised of the latch that is hinged on wherein the tooth bar and of shank end on the other hand and is located at another handle portion end, this latch adjustable ground is fastened on tooth bar, and latch is one-body molded with the handle portion of corresponding connection.