CN215192148U

CN215192148U - Telescopic top rod for fracture reduction

Info

Publication number: CN215192148U
Application number: CN202120320611.XU
Authority: CN
Inventors: 吴会国
Original assignee: Changxing county people's hospital
Current assignee: Changxing county people's hospital
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-12-17
Anticipated expiration: 2031-02-04

Abstract

The utility model relates to a telescopic fracture reduction ejector pin, which comprises a main rod, wherein the main rod comprises a vertical rod and a horizontal rod, a rotating component is arranged in the vertical rod, a driven component and a telescopic component are arranged in the horizontal rod, and a bearing component is arranged on the horizontal rod in a rotating way; horizontal pole and flexible subassembly are used for supporting and pushing away to reset fracture department, the runner assembly drives driven subassembly and rotates, driven subassembly is used for driving flexible subassembly extension and shrink, bearing assembly is used for bearing the weight of steel sheet adjunctie therapy, the utility model provides an among the present tibial plateau fracture operation process ejector pin and bone piece contact surface little, support unstability and cause the secondary injury scheduling problem to patient easily.

Description

Telescopic top rod for fracture reduction

The technical field is as follows:

the utility model relates to the technical field of medical equipment, more specifically the telescopic roof bar that resets that says so.

Background art:

the tibial plateau fracture is a common fracture in clinic, and is often accompanied with the problems of collapse, displacement and the like of bone blocks, the restoration of the collapsed bone blocks is the key of success or failure of the operation, and the ejector rods used in the current operation are mostly straight rod ejector rods, and are small in contact surface with the bone blocks and unstable in support.

The utility model discloses a chinese utility model of publication No. CN209220475U, it discloses a tibial plateau ejector pin, including ejector pin head, ejector pin and handle, ejector pin head and handle are connected respectively to the both ends of ejector pin, and the ejector pin head is circular thin slice structure.

But its in-process to the bone piece support, still less with the contact surface of bone piece, support unstability, easily cause secondary damage to patient in the operation, still exist and beat the great problem of steel nail cooperation degree of difficulty with follow-up.

The invention content is as follows:

the utility model aims at prior art's weak point, provide a telescopic resetting ejector pin of fracture, through set up runner assembly, driven subassembly, flexible subassembly and carrier assembly on the mobile jib, place the steel sheet on carrier assembly, solved present tibial plateau fracture operation in-process ejector pin and bone piece contact surface little, support unstability and cause the secondary injury scheduling problem to patient easily.

The technical solution of the utility model is as follows:

a telescopic top rod for fracture reduction comprises a main rod, wherein the main rod comprises a vertical rod and a cross rod, a rotating assembly is arranged in the vertical rod, a driven assembly and a telescopic assembly are arranged in the cross rod, and a bearing assembly is rotatably arranged on the cross rod; the horizontal rod and the telescopic assembly are used for supporting the fracture part and pushing and resetting, the rotating assembly drives the driven assembly to rotate, the driven assembly is used for driving the telescopic assembly to extend and contract, and the bearing assembly is used for bearing a steel plate for auxiliary treatment.

As a preferred, the runner assembly includes the dwang, fixed setting is at the awl tooth a of dwang one end and the fixed gyro wheel that sets up at the dwang other end, is provided with anti-skidding line on the gyro wheel and increases frictional force for it is more accurate when stirring the gyro wheel.

Preferably, the driven assembly comprises a screw rod, a bevel gear b fixedly arranged at one end of the screw rod and a rotating seat fixedly arranged on the inner wall of the cross rod.

Preferably, the telescopic assembly comprises a telescopic rod, a spherical block fixedly arranged at the top end of the telescopic rod, sliding strips fixedly arranged on two sides of the telescopic rod and a rotating groove formed in the telescopic rod, and threads meshed with the lead screw are arranged in the rotating groove.

Preferably, the bearing assembly comprises a supporting disc and a plurality of supporting rods fixedly arranged in the circumferential direction of the supporting disc.

Preferably, the vertical rod is provided with a convex block and a hollow groove which is formed in the convex block and used for the rolling wheel to rotate.

As another preferred, the both sides of horizontal pole inner wall still are seted up and are supplied the gliding spout of draw runner, and the spout makes the telescopic link more firm when flexible, plays better supporting role to the bone piece simultaneously.

The beneficial effects of the utility model reside in that:

1. the utility model discloses set up the runner assembly on the mobile jib, driven subassembly, flexible subassembly and carrier assembly, the runner assembly drives driven subassembly and rotates, driven subassembly drives flexible subassembly again and extends and the shrink, it beats the steel nail to the fracture department to set up the steel sheet cooperation on the carrier assembly, when the mobile jib is less to bone piece support contact surface, the telescopic link among the flexible subassembly extends, carry out better support to the bone piece, the telescopic link accomplishes to support the back and contracts under the drive of lead screw, at the in-process that supports the bone piece, the steel sheet on the carrier assembly passes through supporting disk angle of adjustment, the cooperation is follow-up to beating the steel nail to the fracture department, it is little with bone piece contact surface to have solved present shin bone platform fracture operation in-process ejector pin, can not stretch supporting rod length and the painful scheduling problem of patient in a flexible way.

2. The utility model discloses be provided with the spherical piece at the telescopic link tip, the spherical piece stretches into the in-process that the patient was internal to the bone piece and supports at the kicking bar, and the internal tissue of indestructible patient is little to internal blood vessel and nerve damage, has avoided the secondary wound to patient.

3. The utility model discloses set up a plurality of bracing pieces on the supporting disk in the carrier assembly for the steel sheet is more accurate at the in-process fixed to the bone piece, and is difficult for deviating, and the supporting disk sets up to the rotatable messenger at the treatment in-process, can be applicable to various sizes, the patient of skeleton difference.

To sum up, the utility model has the advantages of the contact surface is bigger when supporting the bone piece, the support is more firm and be suitable for the limitation little, has still alleviateed the misery that patient bore in treatment process, is fit for medical instrument technical field.

Description of the drawings:

the invention will be further explained with reference to the drawings:

FIG. 1 is a schematic structural view of a telescopic fracture reduction mandril;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a cross-sectional schematic view of the rotating assembly and the driven assembly;

FIG. 4 is an enlarged schematic view at B of FIG. 3;

FIG. 5 is a schematic structural view of a rotating assembly;

FIG. 6 is a schematic structural view of the driven assembly;

FIG. 7 is a schematic structural view of the telescoping assembly;

FIG. 8 is an enlarged schematic view at C of FIG. 7;

FIG. 9 is a schematic structural view of a carrier assembly;

FIG. 10 is a schematic view of the structure of the sliding slot on the cross bar and the bump on the vertical bar;

fig. 11 is an enlarged schematic view at D in fig. 10.

The specific implementation mode is as follows:

the technical solution in the embodiment of the present invention is clearly and completely described below with reference to the accompanying drawings.

Example one

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 11, a telescopic fracture reduction mandril comprises a main rod 1, wherein the main rod 1 comprises a vertical rod 2 and a cross rod 3, a rotating assembly 4 is arranged in the vertical rod 2, a driven assembly 5 and a telescopic assembly 6 are arranged in the cross rod 3, and a bearing assembly 7 is rotatably arranged on the cross rod 3; the cross rod 3 and the telescopic assembly 6 are used for supporting the fracture part and performing pushing reset, the rotating assembly 4 drives the driven assembly 5 to rotate, the driven assembly 5 is used for driving the telescopic assembly 6 to extend and contract, and the bearing assembly 7 is used for bearing a steel plate 8 for auxiliary treatment.

It should be mentioned that, in this embodiment, the main rod 1 is provided with a rotating component 4, a driven component 5, a telescopic component 6 and a bearing component 7, the rotating component 4 drives the driven component 5 to rotate, the driven component 5 drives the telescopic component 6 to extend and contract, the bearing component 7 is provided with a steel plate 8 for matching with a subsequent steel nail for striking a fracture part, when the main rod 1 has a small contact surface for supporting the bone blocks, the telescopic rod 61 in the telescopic component 6 extends, the bone blocks are better supported, the telescopic rod 61 is driven by the screw rod 51 to contract after the support is finished, in the process of supporting the bone block, the angle of the steel plate 8 on the bearing component 7 is adjusted through the supporting disk 71, and the steel nail is driven to the fracture part in a matching way, so that the problems that the contact surface of a mandril and the bone block is small, the length of the supporting rod cannot be flexibly stretched, the pain of a patient is large and the like in the existing tibial plateau fracture operation process are solved.

Further, the rotating assembly 4 includes a rotating rod 41, a bevel gear a42 fixedly disposed at one end of the rotating rod 41, and a roller 43 fixedly disposed at the other end of the rotating rod 41.

Further, the driven assembly 5 comprises a lead screw 51, a bevel gear b52 fixedly arranged at one end of the lead screw 51, and a rotating seat 53 fixedly arranged on the inner wall of the cross bar 3.

Further, the telescopic assembly 6 comprises a telescopic rod 61, a spherical block 62 fixedly arranged at the top end of the telescopic rod 61, sliding strips 63 fixedly arranged at two sides of the telescopic rod 61, and a rotating groove 64 formed in the telescopic rod 61, wherein a thread 65 meshed with the lead screw 51 is arranged in the rotating groove 64.

Here, this embodiment is provided with spherical piece 62 at telescopic link 61 tip, and spherical piece 62 is at the in-process that the ejector pin stretched into patient in vivo to the bone piece support, and the internal tissue of difficult destruction patient is little to internal blood vessel and neural damage, has avoided the secondary wound to patient.

Further, the bearing assembly 7 includes a supporting plate 71 and a plurality of supporting rods 72 fixedly disposed on the supporting plate 71 in the circumferential direction.

It should be further noted that, in the present embodiment, the plurality of support rods 72 are disposed on the support plate 71 in the support assembly 7, so that the steel plate 8 is more accurate in the process of fixing the bone blocks and is not easy to deviate, and the support plate 71 is rotatable so that the support plate can be applied to patients with different body types and different bones in the treatment process.

Furthermore, sliding grooves 31 for sliding the sliding strips 63 are further formed on two sides of the inner wall of the cross bar 3.

Example two

As shown in fig. 10, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience; the second embodiment is different from the first embodiment in that: the vertical rod 2 is provided with a convex block 21 and a hollow groove 22 which is arranged in the convex block 21 and is used for the rolling wheel 43 to rotate.

Here, this embodiment sets up lug 21 and can uses the ejector pin centre gripping between two fingers, has increased medical personnel's the support dynamics when using.

Working process

At first medical personnel place patient's fracture department with the apical stick, rethread gyro wheel 43 rotates dwang 41, drive awl tooth b52 through awl tooth a42, thereby make lead screw 51 extend telescopic link 61, carry out effectual support to the bone piece of fracture department, and in the support, the angle of regulation supporting disk 71, make 8 cooperation medical personnel on the supporting disk 71 beat the steel nail to fracture department and treat patient, accomplish the steel nail input after, reverse stirring gyro wheel 43, make lead screw 51 under the linkage cooperation of awl tooth a42 and awl tooth b52, accomplish the reduction with telescopic link 61 shrink.

In the description of the present invention, it is to be understood that the terms "front and back", "left and right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or parts referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Of course, in this disclosure, those skilled in the art will understand that the terms "a" and "an" should be interpreted as "at least one" or "one or more," i.e., in one embodiment, a number of an element may be one, and in another embodiment, a number of the element may be plural, and the terms "a" and "an" should not be interpreted as limiting the number.

The above description is only about the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the structure of the present invention, and these should be regarded as the protection scope of the present invention, which will not affect the effect and practicability of the present invention.

Claims

1. The utility model provides a telescopic roof bar that resets of fracture, includes mobile jib (1), its characterized in that: the main rod (1) comprises a vertical rod (2) and a cross rod (3), a rotating assembly (4) is arranged in the vertical rod (2), a driven assembly (5) and a telescopic assembly (6) are arranged in the cross rod (3), and a bearing assembly (7) is rotatably arranged on the cross rod (3); the fracture treatment device is characterized in that the cross rod (3) and the telescopic assembly (6) are used for supporting fracture parts and performing pushing reset, the rotating assembly (4) drives the driven assembly (5) to rotate, the driven assembly (5) is used for driving the telescopic assembly (6) to extend and contract, and the bearing assembly (7) is used for bearing a steel plate (8) for auxiliary treatment.

2. A telescopic fracture reduction mandril according to claim 1, characterized in that the rotating component (4) comprises a rotating rod (41), a bevel gear a (42) fixedly arranged at one end of the rotating rod (41) and a roller (43) fixedly arranged at the other end of the rotating rod (41).

3. A telescopic fracture reduction mandril according to claim 1, characterized in that the driven component (5) comprises a lead screw (51), a bevel gear b (52) fixedly arranged at one end of the lead screw (51) and a rotating seat (53) fixedly arranged on the inner wall of the cross rod (3).

4. The telescopic top rod for fracture reduction according to claim 1, wherein the telescopic assembly (6) comprises a telescopic rod (61), a spherical block (62) fixedly arranged at the top end of the telescopic rod (61), sliding bars (63) fixedly arranged at two sides of the telescopic rod (61) and a rotating groove (64) formed on the telescopic rod (61), and a thread (65) meshed with the lead screw (51) is arranged in the rotating groove (64).

5. The telescopic fracture reduction mandril according to claim 1, characterized in that the bearing component (7) comprises a supporting disk (71) and a plurality of supporting rods (72) fixedly arranged on the circumference direction of the supporting disk (71).

6. A telescopic push rod for fracture reduction according to claim 1, characterized in that the vertical rod (2) is provided with a projection (21) and a hollow groove (22) opened inside the projection (21) for the rotation of the roller (43).

7. The telescopic top rod for fracture reduction according to claim 4, wherein the two sides of the inner wall of the cross rod (3) are further provided with sliding grooves (31) for sliding the sliding strips (63).