CN210811474U

CN210811474U - Hollow nail guider for neck of femur

Info

Publication number: CN210811474U
Application number: CN201921349517.6U
Authority: CN
Inventors: 吴涛华; 郑惠; 薛妙容
Original assignee: Mindong Hospital of Ningde City
Current assignee: Mindong Hospital of Ningde City
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-06-23
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a thighbone neck hollow nail director, including the direction main part, the locking hole setting is in the direction main part, the regulating block is installed in direction main part below, the regulating block has the handle, the locking sleeve passes through the locking hole and connects in the direction main part, the downthehole screw thread that is equipped with of locking, be equipped with on the locking sleeve with the screw thread of locking hole screw thread looks adaptation, the regulating block main part is gear and connecting rod, the locking hole is the distribution of falling triangle-shaped, locking hole diameter specification is 2.8mm, and be parallel to each other, vector form position go up angulation 127, be equipped with the anti-skidding rubber cover on the handle. Compared with the prior art, the utility model the advantage lie in: greatly reduced the operation cost, reduced the fear psychology of patient to the operation and the painful sense when performing the operation, overall structure is simple exquisite, does not have wearing parts, long service life.

Description

Hollow nail guider for neck of femur

Technical Field

The utility model relates to a medical apparatus field specifically indicates a thighbone neck hollow nail director.

Background

The existing femoral neck fracture, especially the femoral neck fracture of young people, usually adopts the placing mode of the hollow screw, and the placing mode of the hollow screw is always the key point of the research of clinicians, so as to find the placing mode of the hollow screw which is beneficial to the healing of the femoral neck fracture.

Aiming at femoral neck fracture, the internal fixation strength is high enough to prevent the fracture end from shifting during loading or exercising, especially the aspect of resisting the shear force of the fracture end is enough, the compression force between fracture sections is another important factor for the healing of the femoral neck fracture, because the femoral neck is positioned in a dry hip joint capsule, the femoral neck is not covered by an external periosteum, the femoral neck can only be cured by the first-stage healing of the fracture healing process, and the first-stage healing requires the good compression of the fracture sections through the internal fixation. The existing hollow screw is usually inserted into a plurality of guide needles in parallel, and then a plurality of parallel hollow screws are inserted into the guide needles in parallel, and the parallel hollow screws cannot well pressurize the fracture section, and particularly, when a load is loaded or exercised, the fracture section often has insufficient pressurization and cannot resist fracture shearing force, so that the fracture healing of the neck of femur is influenced.

In order to meet the requirement of resisting the shearing force action of the fracture end, the traditional solution is to insert more hollow screws or increase steel plates or even adopt titanium nails and titanium plates, which inevitably leads to greatly increased treatment cost of patients.

Therefore, it is imperative to design a femoral neck cannulated nail guide.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that present femoral neck hollow nail use method is imperfect, has the potential safety hazard, and can increase the operation cost on the one hand at the place of fracture a large amount of implantation steel sheets, and on the other hand can cause certain harm to patient's health.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a hollow nail director of thighbone neck, includes the direction main part, and the locking hole setting is in the direction main part, and the regulating block is installed in direction main part below, and the regulating block has the handle, and the locking sleeve passes through the locking jogged joint in the direction main part.

Compared with the prior art, the utility model the advantage lie in: through the direction of the hollow nail of installing additional during the operation, the utility model discloses greatly reduced the operation cost, reduced the patient and felt the fear psychology of operation and the painful sense of operation time, hollow nail gets into the patient health through installing the locking sleeve on the locking hole that is parallel each other, reaches the purpose of pinpointing, the utility model discloses install the regulating block additional, the user can carry out the angle according to actual conditions and select, and overall structure is simple exquisite, does not have wearing parts, long service life.

As an improvement, the locking hole is internally provided with a thread.

As an improvement, the locking sleeve is provided with a thread matched with the thread of the locking hole.

As an improvement, the main body of the adjusting block is a gear and a connecting rod.

As an improvement, the locking holes are distributed in an inverted triangle shape.

As an improvement, the diameter specification of the locking holes is 2.8mm, the locking holes are parallel to each other and form an angle of 127 degrees in the sagittal direction.

As an improvement, the handle is provided with an anti-slip rubber sleeve.

Drawings

Fig. 1 is a front view of a femoral neck hollow nail guide.

FIG. 2 is a side view of a femoral neck cannulated nail guide.

FIG. 3 is a schematic view of a locking sleeve of a femoral neck cannulated nail guide.

As shown in the figure: 1. the guide device comprises a guide main body, 2, a locking hole, 3, an adjusting block, 4, a handle, 5 and a locking sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model discloses when concrete implementation, a thighbone neck hollow nail director, including direction main part 1, locking hole 2 sets up direction main part 1 in, regulating block 3 is installed direction main part 1 below, regulating block 3 have handle 4, locking sleeve 5 passes through locking hole 2 connect and be in direction main part 1 on.

The locking hole 2 is internally provided with threads.

The locking sleeve 5 is provided with a thread matched with the thread of the locking hole 2.

The main body of the adjusting block 3 is a gear and a connecting rod.

The locking holes 2 are distributed in an inverted triangle shape.

The diameter of the locking hole 2 is 2.8mm, and the locking hole are parallel to each other and form an angle of 127 degrees in the sagittal direction.

The handle 4 is provided with an anti-slip rubber sleeve.

The utility model discloses a theory of operation: be equipped with the locking hole that the diameter specification is 2.8mm and be parallel to each other in the direction main part, angulation 127 on the arrow position, the downthehole screw thread that is equipped with of locking, be equipped with on the locking sleeve and think the screw thread of adaptation with the locking hole screw thread, the locking sleeve passes through the mode that the screw-thread engagement is connected and installs on the locking hole, and the locking sleeve is hollow sleeve, and hollow nail gets into patient's fracture department through the locking sleeve, realizes the utility model discloses carry out the effect of leading when installing additional to hollow nail.

The adjusting block is arranged below the guide main body, the adjusting block main body is a gear set and a connecting rod, one end of the connecting rod is connected with the guide main body, the other end of the connecting rod is meshed with the gear set, and the angle adjustment of the guide main body is realized through the matching of the gear set and the tooth space of the connecting rod.

The handle is provided with a rubber sleeve with large friction force to prevent the surface of the handle from slipping when in use.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless a limitation is explicitly stated.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims

1. The utility model provides a thighbone neck cannulated nail director, includes guide body (1), its characterized in that: locking hole (2) set up direction main part (1) in, regulating block (3) are installed direction main part (1) below, regulating block (3) under be equipped with handle (4), locking sleeve (5) pass through locking hole (2) connect and be in direction main part (1) on.

2. A femoral neck cannulated nail guide according to claim 1, wherein: the locking hole (2) is internally provided with threads.

3. A femoral neck cannulated nail guide according to claim 1, wherein: the locking sleeve (5) is provided with a thread matched with the thread of the locking hole (2).

4. A femoral neck cannulated nail guide according to claim 1, wherein: the main body of the adjusting block (3) is a gear and a connecting rod.

5. A femoral neck cannulated nail guide according to claim 1, wherein: the locking holes (2) are distributed in an inverted triangle shape.

6. A femoral neck cannulated nail guide according to claim 1, wherein: the diameter of the locking hole (2) is 2.8mm, the locking holes are parallel to each other, and the sagittal orientation forms an angle of 127 degrees.

7. A femoral neck cannulated nail guide according to claim 1, wherein: the handle (4) is provided with an anti-skid rubber sleeve.