CN217793280U

CN217793280U - Calcaneus reduction fixator

Info

Publication number: CN217793280U
Application number: CN202221061274.8U
Authority: CN
Inventors: 吴春辉
Original assignee: Shunde Hospital Affiliated To Jinan University Foshan Shunde Second People's Hospital Foshan Shunde Fengyaojing Memorial Hospital
Current assignee: Guojian Pharmaceutical Shenzhen Group Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-11-15
Anticipated expiration: 2032-05-05

Abstract

The utility model discloses a calcaneum fixer that resets, it includes: the needle bar comprises a main bar, a fixed needle frame and a sliding needle frame, wherein the main bar is provided with an external thread bar section; the fixed needle frame is connected to one end of the main rod; the sliding needle frame is connected to the main rod in a sliding mode along the axial direction of the main rod, a rotating nut is rotationally fixed on the sliding needle frame, and the external thread rod section is arranged in a threaded sleeve of the rotating nut. Fixed needle frame, the slip needle frame is connected with two steel needles of implanting in the calcaneum respectively, when the relative distraction distance of two steel needles is adjusted to needs, the accessible is rotatory to be rotated the nut and is driven slip needle frame along mobile jib endwise slip, because the screw drive between swivel nut and the external screw thread pole section has the effect of auto-lock, after adjusting the settlement position, the irrotational swivel nut, can fix a position slip needle frame, there is not the phenomenon of skew, and can realize stepless continuous displacement control.

Description

Calcaneus reduction fixator

Technical Field

The utility model relates to the field of medical equipment, in particular to calcaneus reduction fixator.

Background

Calcaneal fracture is a common injury of feet, most of the young and the strong, and can seriously damage calcaneal distance joints, cause adhesion and stiffness, formation of bony spur, healing of calcaneal deformity and the like. The prior art generally carries out reduction fixation to the calcaneus through calcaneus reduction fixer, specifically: bone reduction anchor is through adjusting the fixed distance of implanting between two steel needles in the calcaneum to improve the efficiency of healing, but current calcaneum reduction anchor when using, it is inconvenient to adjust, mainly embodies when adjusting the locking fastening of going on after the position, often can have the skew phenomenon, and the precision of regulation is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a calcaneus reduction fixator to solve one or more technical problem that exist among the prior art, provide a profitable selection or creating the condition at least.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a calcaneum fixer that resets, it includes: the needle comprises a main rod, a fixed needle frame and a sliding needle frame, wherein the main rod is provided with an external thread rod section; the fixed needle frame is connected to one end of the main rod; the sliding needle frame is connected to the main rod in a sliding mode along the axial direction of the main rod, a rotating nut is rotationally fixed on the sliding needle frame, and the external thread rod section is arranged on the rotating nut in a threaded sleeve mode.

The utility model has the advantages that: when using, fixed needle frame, the slip needle frame is connected with two steel needles of implanting in the calcaneus respectively, when the relative distraction distance of two steel needles is adjusted to needs, the accessible is rotatory to rotate the nut and is driven the slip needle frame along mobile jib endwise slip, because the screw drive between rotation nut and the external screw thread pole section has the effect of auto-lock, after adjusting the settlement position, the irrotational nut, can fix a position the slip needle frame, the phenomenon of skew does not exist, and can realize stepless continuous displacement control.

As a further improvement of the above technical solution, the main rod is concavely provided with a sliding groove extending along the axial direction, and the sliding needle frame is slidably connected with the sliding groove through a sliding block.

The sliding needle frame of the scheme realizes the sliding effect through the sliding fit of the sliding block and the sliding groove, and the sliding groove cannot interfere with the rotation of the rotating nut.

As a further improvement of the technical scheme, the sliding needle frame is connected with a sliding sleeve sleeved on the periphery of the main rod, and the sliding block is arranged on the sliding sleeve.

The sliding needle frame is further provided with a sliding sleeve to be sleeved with the main rod, so that the sliding stability of the sliding needle frame and the main rod can be improved.

As a further improvement of the above technical solution, the number of the sliding grooves is plural, the plural sliding grooves are arranged at intervals in a ring shape, correspondingly, the sliding needle frame is provided with a plurality of the sliding blocks which are in one-to-one corresponding sliding fit with the plural sliding grooves, and the plurality of the sliding blocks are arranged on the inner peripheral wall of the sliding sleeve.

The scheme realizes the sliding of the sliding needle frame on the main rod through the sliding matching of the sliding blocks and the sliding grooves, and further improves the sliding stability of the sliding needle frame.

As a further improvement of the above technical solution, the rotating nut is rotatably mounted on an end portion of the sliding sleeve. The design is more convenient for people to operate, and the whole structure is compact.

As a further improvement of the above technical solution, the sliding sleeve is provided with a first rotating connecting portion, and the rotating nut is provided with a second rotating connecting portion rotatably connected with the first rotating connecting portion.

Wherein, this scheme passes through the normal running fit that first rotation connecting portion and second rotated connecting portion realizes rotating the nut and is connected with the rotation of sliding sleeve.

As a further improvement of the technical scheme, the other end of the main rod is fixedly connected with a nut head. When the rotating nut is rotated, people can fix the main rod by holding the nut head, so that the rotating nut is more convenient to rotate.

As a further improvement of the technical scheme, the fixed needle frame and the sliding needle frame are arranged side by side along the axial interval of the main rod, one end of the main rod, far away from the fixed needle frame and the sliding needle frame, is defined as a needle inserting end, and the needle inserting end is connected with a needle inserting head. This scheme is fixed the steel needle through the syringe needle.

As a further improvement of the above technical solution, the needle head is connected to the needle insertion end by a locking shaft extending axially along the main rod in an adjustable and rotatable manner.

The pinhead of this scheme rotationally sets up, can match the different gestures of steel needle like this, and the steel needle is at the process of implanting, is difficult to keep being parallel to each other.

As a further improvement of the technical scheme, the locking shaft part is a locking bolt, and the inserting needle head is provided with an inserting needle hole which is axially vertical to the locking shaft part.

The scheme realizes that the plug pin head is locked and fixed when rotating through the locking bolt, and the steel pin is inserted into the plug pin hole.

Drawings

The invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic structural view of an embodiment of the calcaneus reduction fixator provided by the present invention;

FIG. 2 isbase:Sub>A sectional view A-A of FIG. 1;

fig. 3 is a partially enlarged view of a portion B in fig. 1.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 3, the calcaneus reduction fixator of the present invention is implemented as follows:

the calcaneus reduction fixator comprises a main rod 100 extending left and right, a fixed needle frame 200 and a sliding needle frame 300 which are arranged side by side at left and right intervals.

Wherein fixed needle frame 200 is installed in the left end of mobile jib 100, the fixed needle frame 200 of this embodiment sets up with mobile jib 100 is perpendicular, fixed needle frame 200 is provided with stiff end and grafting end, wherein the stiff end of fixed needle frame 200 is connected with mobile jib 100, the fixed needle frame 200 of this scheme locates on the left end of mobile jib 100 through fixed cover, wherein fixed needle frame 200 can the relatively fixed setting with mobile jib 100, but in order to make the suitability of fixer that resets better, the fixed needle frame 200 of this embodiment rotationally overlaps on mobile jib 100 through fixed cover, fixed needle frame 200 and mobile jib 100 are relative fixed setting in the left and right directions, that is to say, fixed needle frame 200 can rotate around mobile jib 100, when using, can adjust the turned angle of fixed needle frame 200 according to the position that the steel needle was implanted.

This embodiment is provided with two location steps at the left end of mobile jib 100, and fixed cover is located between two location steps.

The sliding needle frame 300 can be axially and slidably arranged along the main rod 100, the sliding needle frame 300 does not rotate relative to the main rod 100, the main rod 100 is provided with the external thread rod section 110, the length of the external thread rod section 110 can be determined according to actual requirements, the sliding needle frame 300 is provided with the rotating nut 310, the rotating nut 310 is rotatably arranged on the sliding needle frame 300, the rotating nut 310 is in threaded adjustment with the external thread rod section 110, namely, the rotating nut 310 can be rotated, and the sliding needle frame 300 is driven to axially move relative to the main rod 100 under the threaded matching of the rotating nut 310 and the external thread rod section 110.

Specifically, the method comprises the following steps: the needle sliding frame 300 of the present embodiment is perpendicular to the main rod 100, the needle sliding frame 300 is provided with a sliding end and an inserting end, the sliding end is connected with the sliding sleeve 330, the sliding sleeve 330 is disposed on the periphery of the main rod 100, so that the stability of the needle sliding frame 300 and the sliding of the main rod 100 can be improved, and the sliding groove 120 is concavely disposed on the peripheral wall of the main rod 100, the sliding groove 120 extends along the axial direction, the sliding sleeve 330 is fixed with the sliding block 320, the sliding block 320 is in sliding fit with the sliding groove 120, and the sliding groove 120 does not interfere with the rotation of the rotating nut 310.

Because the screw transmission between the rotating nut 310 and the external screw rod section 110 has a self-locking function, when the sliding needle frame 300 is adjusted to a set position, the sliding needle frame 300 can be positioned without rotating the rotating nut 310, the offset phenomenon does not exist, and stepless continuous displacement adjustment can be realized.

In order to improve the sliding stability of the sliding needle holder 300, the number of the sliding grooves 120 of the present embodiment is four, four sliding grooves 120 are annularly spaced on the outer circumferential wall of the main rod 100, correspondingly, four sliding blocks 320 are also provided, and the four sliding blocks 320 are in one-to-one corresponding sliding fit with the four sliding grooves 120.

In other embodiments, two, three, etc. slide slots 120 may be provided.

Moreover, the rotating nut 310 is disposed at the end of the sliding sleeve 330, and the rotating nut 310 is coaxially and rotatably connected with the sliding sleeve 330, so that the operation of people is facilitated, and the overall structure is also compact.

Specifically, the method comprises the following steps: the end of the sliding sleeve 330 is provided with a first rotating connection portion 331, the end of the rotating nut 310 is provided with a second rotating connection portion 311, the first rotating connection portion 331 and the second rotating connection portion 311 are rotatably connected, the first rotating connection portion 331 of the embodiment is an annular clamping ring, the second rotating connection portion 311 is an annular clamping groove, and the annular clamping ring is rotatably matched with the annular clamping groove.

In order to facilitate the rotation of the rotating nut 310, a nut head 130 is fixedly connected to the right end of the main lever 100 in this embodiment, and when the rotating nut 310 is rotated, a person can hold the nut head 130 to fix the main lever 100.

Two contact pin ends of this embodiment all are provided with and are connected with contact pin head 400, and contact pin head 400 and contact pin end rotate relatively and set up, contact pin head 400 through locking shaft 500 with the contact pin end rotates to be connected, and locking shaft 500 extends along mobile jib 100 axial, can match the different gestures of steel needle like this, and the steel needle is difficult to keep being parallel to each other in the process of implanting, and locking shaft 500 of this embodiment adopts the locking bolt, contact pin head 400 is provided with contact pin hole 410, contact pin hole 410 with locking shaft 500 axial vertical, also locks fixedly when realizing the pivoted of contact pin head 400 through the locking bolt, and the steel needle cartridge is in contact pin hole 410.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The utility model provides a calcaneus reduction fixator which characterized in that: it includes:

a main rod (100) provided with an externally threaded rod section (110);

a fixed needle frame (200) connected to one end of the main rod (100);

the sliding needle frame (300) is connected to the main rod (100) in an axially slidable mode along the main rod (100), a rotating nut (310) is rotationally fixed on the sliding needle frame (300), and the external thread rod section (110) is sleeved with the rotating nut (310) in a threaded mode.

2. A calcaneus reduction fixator as claimed in claim 1, wherein:

the main rod (100) is concavely provided with a sliding groove (120) extending along the axial direction, and the sliding needle frame (300) is in sliding connection with the sliding groove (120) through a sliding block (320).

3. A calcaneus reduction fixator as claimed in claim 2, wherein:

the sliding needle frame (300) is connected with a sliding sleeve (330) which is sleeved on the periphery of the main rod (100).

4. A calcaneus reduction fixator as claimed in claim 3, wherein:

the number of sliding grooves (120) is a plurality of, and is a plurality of sliding grooves (120) annular interval sets up, correspondingly sliding needle frame (300) be provided with a plurality of sliding grooves (120) one-to-one correspondence sliding fit's a plurality of slider (320), a plurality of slider (320) set up in the internal perisporium wall of sliding sleeve (330).

5. A calcaneus reduction fixator according to claim 3, wherein:

the rotating nut (310) is rotatably mounted to an end of the sliding sleeve (330).

6. A calcaneus reduction fixator according to claim 5, wherein:

the sliding sleeve (330) is provided with a first rotating connecting portion (331), and the rotating nut (310) is provided with a second rotating connecting portion (311) rotatably connected with the first rotating connecting portion (331).

7. A calcaneus reduction fixator according to claim 1, wherein:

the main rod (100) is fixedly connected with a nut head (130).

8. A calcaneus reduction fixator according to claim 1, wherein:

fixed needle frame (200) and slip needle frame (300) set up side by side along the axial interval of mobile jib (100), fixed needle frame (200) and slip needle frame (300) are kept away from the one end definition of mobile jib (100) is the contact pin end, the contact pin end is connected with contact pin head (400).

9. A calcaneus reduction fixator as claimed in claim 8, wherein:

the needle head (400) is connected with the needle inserting end in an adjustable and rotatable manner through a locking shaft (500) extending along the axial direction of the main rod (100).

10. A calcaneus reduction fixator according to claim 9, wherein:

the locking shaft piece (500) is a locking bolt, and the pin head (400) is provided with a pin inserting hole (410) which is vertical to the locking shaft piece (500) in the axial direction.