CN210185672U - Bone reduction struts ware - Google Patents

Abstract

The utility model provides a bone reduction and spreader, which comprises a first spreader column, a second spreader column and a guide rod. One end of the guide rod is vertically fixed on the first spreader column, and the upper edge of the second spreader column guides A guide hole is provided in the length direction of the rod, the guide rod extends into the guide hole, and transmission teeth are distributed along the length direction on the guide rod, and a gear slot is also opened in the second spreading column, and the gear is rotated and arranged in the gear slot through the axle , and the gear meshes with the transmission teeth on the guide rod, one end of the wheel shaft extends to the outside of the second stretcher column, and the first stretcher column and the second stretcher column are respectively provided with a first traction pin fixing hole and a second stretcher. Two traction needle fixing holes, the first traction needle fixing hole and the second traction needle fixing hole are parallel to each other, and both the first traction needle fixing hole and the second traction needle fixing hole are perpendicular to the guide rod. In order to solve the problems that the existing spreader is inconvenient to use, easy to injure the patient, and has a large potential safety hazard. The utility model belongs to the technical field of bone reduction.

Description

Bone reduction struts ware

Technical Field

The utility model relates to a spreader belongs to bone reduction technology field.

Background

At present, in the process of opening and retracting, one end of a spreader used in clinical orthopedics can rotate while being pushed, so that muscles, blood vessels, nerves and other parts of a patient are easily injured, and great potential safety hazards exist.

Disclosure of Invention

The utility model aims to provide a: the utility model provides a bone reduction distractor to solve current distractor and use inconveniently, injure the patient easily, have great potential safety hazard scheduling problem.

In order to solve the problems, the bone reposition spreader comprises a first spreading column, a second spreading column and a guide rod, wherein the first spreading column and the second spreading column are arranged in parallel, one end of the guide rod is vertically fixed on the first spreading column, the second spreading column is provided with a guide hole along the length direction of the guide rod, the other end of the guide rod extends into the guide hole, one side of the guide rod is distributed with transmission teeth along the length direction, a gear groove is also arranged in the second spreading column, a gear is rotatably arranged in the gear groove through a wheel shaft and is meshed with the transmission teeth on the guide rod, namely the first spreading column and the second spreading column are in transmission connection, one end of the wheel shaft extends out of the second spreading column, the first spreading column and the second spreading column are respectively provided with a first traction needle fixing hole and a second traction needle fixing hole, the first traction needle fixing hole is parallel to the second traction needle fixing hole, and the first traction needle fixing hole and the second traction needle fixing hole are both vertical to the guide rod.

In the distractor, a knob is fixed on a wheel shaft outside the second distraction column, and the wheel shaft is vertical to the first traction needle fixing hole and the first distraction column in the length direction;

the spreader also comprises a limiting rod, limiting latch teeth are further distributed on the guide rod between the first spreading column and the second spreading column along the length direction, the middle part of the limiting rod is hinged on the second spreading column, and one end of the limiting rod is clamped at the limiting latch teeth;

in the distractor, the tip end of the limiting latch is obliquely arranged towards one side of the second distraction column, and one end of the limiting rod is clamped on the side surface of the limiting latch facing the second distraction column;

among the aforementioned spreader, the gag lever post is propped up and is still seted up the gag lever post hole along the length direction of guide bar on the post, the gag lever post is worn to locate in the gag lever post downthehole, and the middle part of gag lever post articulates in the gag lever post downthehole, the both ends of gag lever post are stretched out to the outside by the both ends in gag lever post hole respectively, one side of the articulated department in gag lever post middle part still is provided with reset spring, reset spring sets up along the swing direction of gag lever post, reset spring's both ends are fixed in respectively on the inner wall in gag lever post and gag lever post hole, and when spacing latch department was located in the one end card of gag lever post, reset spring.

In the aforementioned spreader, the first traction needle fixing hole and the second traction needle fixing hole are fixedly provided with a traction needle reinforcing device at one end, the traction needle reinforcing device comprises a sleeve with external threads and an adjusting pipe with internal threads matched with the sleeve, one end of the sleeve is fixedly connected with the spreading column, the sleeve is communicated with the traction needle fixing hole, the other end of the sleeve is provided with clamping claws distributed and arranged along the circumferential direction, the clamping claws and the sleeve are of an integrated structure, the clamping claws have certain elasticity and can be made of elastic materials, one end of the adjusting pipe is rotatably arranged on the sleeve from one end of the sleeve with the clamping claws, the clamping claws extend out to the outside through the other end of the adjusting pipe, the inner diameter of the outer end of the adjusting pipe is smaller than the outer diameter of the sleeve, the inner diameter of the clamping claws can be adjusted by rotating the adjusting pipe, and therefore traction needles with different diameters are all applicable.

Compared with the prior art, the utility model has reasonable structural design, after the traction needles are driven in, the traction can be well realized by using the device, when in traction, the two traction needles are always kept in a parallel state, the muscle, the blood vessel, the nerve and other parts of a patient are not easy to be injured, and the use is safer; through pulling needle reinforcing apparatus centre gripping and pulling the needle, can both realize fine fixed through same traction distraction ware to the needle of pulling of different thicknesses, it is more convenient to use, and need not all to prepare a set of device to every kind of needle of pulling, save the cost, when using, can adjust two distances of strutting between the post through rotating the knob, thereby realize the purpose of strutting, and simultaneously, the in-process of strutting, two are propped and can not rotate relatively between the post, and then avoid rotating the injury that causes the patient, the potential safety hazard has been eliminated, it is also more convenient to use.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an enlarged fragmentary view of the gear portion of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

fig. 4 is a bottom view of the pull pin reinforcement device of fig. 1.

Detailed Description

To further clarify the objects, technical solutions and advantages of the present invention, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings.

Example (b):

referring to fig. 1 to 4, the embodiment provides a bone reposition spreader, which includes a first spreading column 1, a second spreading column 2 and a guide rod 3, wherein the first spreading column 1 and the second spreading column 2 are arranged in parallel, one end of the guide rod 3 is vertically fixed on the first spreading column 1, the second spreading column 2 is provided with a guide hole 21 along the length direction of the guide rod 3, the other end of the guide rod 3 extends into the guide hole 21, one side of the guide rod 3 is provided with transmission teeth 31 along the length direction, the second spreading column 2 is further provided with a gear groove 22, the gear 4 is rotatably arranged in the gear groove 22 through a wheel shaft 5, the gear 4 is engaged with the transmission teeth 31 on the guide rod 3, i.e. the two are in transmission connection, one end of the wheel shaft 5 extends out of the second spreading column 2, a knob 6 is fixed on the wheel shaft 5 outside the second spreading column 2, the wheel shaft 5 is perpendicular to the first traction needle fixing hole 11 and the length direction of the first spreading column 1, the wheel shaft 5 is rotated through the knob 6, so that the guide rod 3 can be driven to move in the second spreading column 2, and the distance between the first spreading column 1 and the second spreading column 2 can be adjusted, namely, the spreading process is realized.

The guide rod 3 between the first spreading column 1 and the second spreading column 2 is also provided with a limit latch 32 along the length direction, the middle part of the limit rod 7 is hinged on the second spreading column 2, one end of the limit rod 7 is clamped at the limit latch 32, the tip end of the limit latch 32 is obliquely arranged towards one side of the second spreading column 2, one end of the limit rod 7 is clamped at the side of the limit latch 32 facing the second spreading column 2, the second spreading column 2 is also provided with a limit rod hole 24 along the length direction of the guide rod 3, the limit rod 7 is arranged in the limit rod hole 24 in a penetrating way, the middle part of the limit rod 7 is hinged in the limit rod hole 24, the two ends of the limit rod 7 respectively extend out from the two ends of the limit rod hole 24 to the outside, one side of the hinged part of the middle part of the limit rod 7 is also provided with a reset spring 8, the reset spring 8 is arranged along the swing direction of the limit rod 7, the two ends of the reset spring 8 are respectively fixed on the inner walls of the limit rod 7 and the limit rod hole 24, when one end of the limiting rod 7 is clamped at the limiting latch 32, the reset spring 8 is in a natural length state or a stretching state, and after the strut is stretched to a specified length, the limiting rod 7 is clamped at the limiting latch 32, so that the distance between the two strut columns can be limited.

The first distraction column 1 and the second distraction column 2 are respectively provided with a first traction needle fixing hole 11 and a second traction needle fixing hole 23, the first traction needle fixing hole 11 and the second traction needle fixing hole 23 are parallel to each other, the first traction needle fixing hole 11 and the second traction needle fixing hole 23 are both vertical to the guide rod 3, one end of the first traction needle fixing hole 11 and one end of the second traction needle fixing hole 23 are both fixedly provided with a traction needle reinforcing device 9, the traction needle reinforcing device 9 comprises a sleeve 91 with external threads and an adjusting pipe 92 matched with the sleeve 91 and provided with internal threads, one end of the sleeve 91 is fixedly connected with the distraction column, the sleeve 91 is communicated with the traction needle fixing holes, the other end of the sleeve 91 is provided with clamping claws 93 distributed along the circumferential direction, the clamping claws 93 and the sleeve 91 are of an integrated structure, the clamping claws 93 have certain elasticity and can be made of an elastic material, one end of the adjusting pipe 92 is arranged on the sleeve 91 from one end of the sleeve 91 with the clamping claws 93 screwed on the sleeve 91, the gripper jaw 93 extends to the outside through the other end of the adjusting tube 92, and the inner diameter of the outer end of the adjusting tube 92 is smaller than the outer diameter of the sleeve 91, and the gripping inner diameter of the gripper jaw 93 can be adjusted by rotating the adjusting tube 92, so that the needle retractor is applicable to traction needles of different diameters.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. The utility model provides a bone reduction struts ware which characterized in that: the traction needle comprises a first distraction column (1), a second distraction column (2) and a guide rod (3), wherein the first distraction column (1) and the second distraction column (2) are arranged in parallel, one end of the guide rod (3) is perpendicularly fixed on the first distraction column (1), a guide hole (21) is formed in the second distraction column (2) along the length direction of the guide rod (3), the other end of the guide rod (3) extends into the guide hole (21), transmission teeth (31) are distributed on one side of the guide rod (3) along the length direction, a gear groove (22) is formed in the second distraction column (2), a gear (4) is rotatably arranged in the gear groove (22) through a wheel shaft (5), the gear (4) is meshed with the transmission teeth (31) on the guide rod (3), one end of the wheel shaft (5) extends out of the second distraction column (2), a first fixing hole (11) and a second traction needle fixing hole (11) are formed in the first distraction column (1) and the second distraction column (2), and a first traction needle fixing hole (11) and a second traction needle fixing hole (11) are formed in the first distraction column (2) respectively 23) The first traction needle fixing hole (11) and the second traction needle fixing hole (23) are parallel to each other, and the first traction needle fixing hole (11) and the second traction needle fixing hole (23) are perpendicular to the guide rod (3).

2. The bone reduction distractor of claim 1, wherein: a knob (6) is fixed on a wheel shaft (5) outside the second distraction column (2), and the wheel shaft (5) is vertical to the length direction of the first distraction needle fixing hole (11).

3. The bone reduction distractor of claim 1, wherein: the support is characterized by further comprising a limiting rod (7), limiting latch teeth (32) are further distributed and arranged on the guide rod (3) between the first spreading column (1) and the second spreading column (2) along the length direction, the middle of the limiting rod (7) is hinged to the second spreading column (2), and one end of the limiting rod (7) is clamped at the limiting latch teeth (32).

4. The bone reduction distractor of claim 3, wherein: the tip of the limiting latch (32) is obliquely arranged on one side where the second spreading column (2) is located, and one end of the limiting rod (7) is clamped on the side face of the limiting latch (32) facing the second spreading column (2).

5. The bone reduction distractor of claim 4, wherein: spacing rod hole (24) have still been seted up along the length direction of guide bar (3) on second struts post (2), gag lever post (7) are worn to locate in gag lever post hole (24), and the middle part of gag lever post (7) articulates in gag lever post hole (24), the both ends of gag lever post (7) are stretched out to the outside by the both ends of gag lever post hole (24) respectively, one side of gag lever post (7) middle part articulated department still is provided with reset spring (8), reset spring (8) set up along the swing direction of gag lever post (7), reset spring (8) both ends are fixed in respectively on the inner wall of gag lever post (7) and gag lever post hole (24), and when the one end card of gag lever post (7) was located spacing latch (32), reset spring (8) are natural length state or tensile state.

6. The bone reduction distractor of claim 1, wherein: the traction needle fixing structure is characterized in that a traction needle reinforcing device (9) is fixedly arranged at one end of each of the first traction needle fixing hole (11) and the second traction needle fixing hole (23), each traction needle reinforcing device (9) comprises a sleeve (91) with an external thread and an adjusting pipe (92) with an internal thread matched with the sleeve, one end of each sleeve (91) is fixedly connected with the corresponding spreading column, the sleeves (91) are communicated with the traction needle fixing holes, clamping claws (93) distributed and arranged along the circumferential direction are arranged at the other end of each sleeve (91), each clamping claw (93) is made of an elastic material, one end of each adjusting pipe (92) is rotatably arranged on each sleeve (91) through one end of each sleeve (91) with each clamping claw (93), each clamping claw (93) extends out through the other end of each adjusting pipe (92), and the inner diameter of the outer end of each adjusting pipe (92) is smaller than the outer diameter of each sleeve (91).

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