CN215651325U

CN215651325U - Anti-slip door-shaped nail

Info

Publication number: CN215651325U
Application number: CN202121366982.8U
Authority: CN
Inventors: 陈永兵; 陆军; 曹刚; 陆伟
Original assignee: SUZHOU GEMMED MEDICAL INSTRUMENT CO Ltd
Current assignee: SUZHOU GEMMED MEDICAL INSTRUMENT CO Ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-01-28
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses an anti-slipping door-shaped nail, which comprises two fixed arms inserted into a human bone and a compression joint arm connected with the two fixed arms and used for low-voltage fixation, and is characterized in that the two fixed arms are symmetrically arranged at two ends of the compression joint arm, the joint of the two fixed arms and the compression joint arm is provided with an arc transition surface, the inner side surfaces of the two fixed arms are provided with barb teeth, and the two fixed arms are bent in opposite directions; the outside of two fixed arms sets up the cambered surface depressed part, and the cambered surface depressed part corresponds with the barb tooth. The utility model has the advantages of simple structure and easy manufacture, improves the operation efficiency of medical personnel, reduces the operation time and relieves the pain of patients.

Description

Anti-slip door-shaped nail

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an anti-slip door-shaped nail.

Background

In the operation, in order to realize the pressurization operation, manual pressing is generally adopted or a complicated pressurization device is used, but the pressurization effect of the manual pressing is not ideal, the operation wound of the complicated pressurization device is generally large, and the operation time is increased. The door-shaped nail is a nail like a door or a staple in appearance, and the door-shaped nail used in the department of sports medicine is mainly used for fixing human bones with cracks and surrounding soft tissues (such as ligaments and the like) when the human bones have the cracks and the like. The portal nail has the advantages of simple operation, good fixing effect, no complication and the like in the process of treating the torn injury of the ligament attachment point. Existing door nails typically include two fixation arms for insertion into a human bone and a crimp arm connecting the two fixation arms for compression fixation against a human soft tissue. For example, chinese patent application No. CN201822231654.1, application date 20181228, granted publication No. CN209899461U, granted publication No. 20200107, discloses a device for opening a gate-type nail, wherein the disclosed gate-type nail has a cross arm and two fixing arms, the inner side surfaces of the two fixing arms are respectively and uniformly formed with barb teeth, and the two fixing arms of the gate-type nail are bent toward each other. The defect is that as an orthopedic medical appliance, a portal nail distraction device only discloses the front-view section structure, and the person skilled in the art cannot know the three-dimensional structure actually applied to clinic.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Aiming at the problems that only the front-view section structure of a door-shaped nail is disclosed in a door-shaped nail spreading device in the prior art, and the door-shaped nail cannot be practically used by technicians in the field without practical application to a clinical three-dimensional mechanism, the utility model aims to provide the anti-slipping door-shaped nail which is simple in structure and easy to manufacture, is used for fixing human bones with cracks and surrounding soft tissues when the human bones have cracks and the like, is matched with the disclosed door-shaped nail spreading device for use, and automatically rebounds to realize pressurization at the fracture line, so that the operation efficiency of medical workers is improved, the operation time is shortened, and the pain of patients is relieved.

2. Technical scheme

In order to achieve the purpose and achieve the technical effect, the utility model adopts the following technical scheme:

an anti-slipping door-shaped nail comprises two fixing arms inserted into bones of a human body and a crimping arm connected with the two fixing arms and used for low-voltage fixation, and is characterized in that the two fixing arms are symmetrically arranged at two ends of the crimping arm, an arc-shaped transition surface is arranged at the joint of the two fixing arms and the crimping arm, barb teeth are arranged on the inner side surfaces of the two fixing arms, and the two fixing arms are bent in opposite directions; the outer sides of the two fixing arms are provided with cambered surface concave parts, and the cambered surface concave parts correspond to the barb teeth.

In a particular embodiment of the utility model, at least one of said cambered recesses is provided on each fixed arm.

In a specific embodiment of the present invention, the two fixing arms are wide in top and narrow in bottom in a view along the width direction, the contour lines are line segments, and two adjacent line segments are connected by an arc transition.

In a specific embodiment of the utility model, the two fixing arms are provided with acute-angled insertion ends away from one end of the crimp arm.

In a specific embodiment of the utility model, when the two fixing arms are bent towards each other, the angle between the fixing arms and the vertical line is 10-15 °.

In a specific embodiment of the present invention, the angle between the fixed arm and the vertical line is any one of 10 °, 10.5 °, 11 °, 11.5 °, 12 °, 12.5 °, 13 °, 13.5 °, 14 °, 14.5 °, and 15 °.

In a specific embodiment of the utility model, the number of the barb teeth is 3-6, and the included angle between the connecting line of more than two barb teeth and the horizontal plane is 75-80 degrees.

During the use, the device is propped open through door type nail can easily prop open door type nail, then with the quick downthehole of squeezing into in advance at the income fracture line both ends of door type nail, then only need remove door type nail and prop open the device, because the automatic pressurization that realizes fracture line department that kick-backs of door type nail has improved medical personnel's operation efficiency, has reduced the time of operation, alleviates patient's misery.

3. Advantageous effects

The utility model has the advantages of simple structure and easy manufacture, is used for fixing human bones with cracks and surrounding soft tissues when the human bones have cracks, is matched with a door-shaped nail spreading device for use, easily spreads the door-shaped nail through the door-shaped nail spreading device, quickly places the door-shaped nail into holes which are punched in advance at two ends of a fracture line, and then only needs to remove the device, because the door-shaped nail automatically rebounds to realize the pressurization of the fracture line, the operation efficiency of medical personnel is improved, the operation time is reduced, and the pain of a patient is relieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of the door type nail of the present invention.

Fig. 2 is a left side view structure diagram of the present invention.

In the figure: 1-a stationary arm; 2-a crimp arm; 3-arc transition surface; 4-barb teeth; 5-cambered surface concave part; 6-line segment; 7-arc; 8-an insertion end; 9-plumb line; 10-connecting line; 11-horizontal plane.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, e.g. as a fixed connection, a detachable connection or an integral connection; 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 utility model can be understood in specific cases to those of ordinary skill in the art.

As shown in fig. 1 and 2, the anti-slipping door-shaped nail comprises two fixing arms 1 inserted into bones of a human body and a crimping arm 2 connected with the two fixing arms 1 and used for low-voltage fixation, and is characterized in that the two fixing arms 1 are symmetrically arranged at two ends of the crimping arm 2, an arc-shaped transition surface 3 is arranged at the joint of the two fixing arms 1 and the crimping arm 2, barb teeth 4 are arranged on the inner side surfaces of the two fixing arms 1, and the two fixing arms 1 are bent in opposite directions; the outer sides of the two fixing arms 1 are provided with cambered surface concave parts 5, and the cambered surface concave parts 5 correspond to the barb teeth 4. The cambered surface depressed part 5 is provided at least one on each fixing arm 1.

The two fixed arms 1 are wide at the top and narrow at the bottom in the view along the width direction, the contour lines are line segments 6, and two adjacent line segments 6 are in transitional connection through an arc 7.

One end of the two fixing arms 1 far away from the crimping arm 2 is provided with an acute-angled insertion end 8.

When the two fixing arms 1 are bent oppositely, the included angle between the fixing arms 1 and the plumb line 9 is 10-15 degrees. The angle between the fixing arm 1 and the vertical line 9 is preferably any one of 10 °, 10.5 °, 11 °, 11.5 °, 12 °, 12.5 °, 13 °, 13.5 °, 14 °, 14.5 °, and 15 °.

The number of the barb teeth 4 is 3-6, and the included angle between the connecting line 10 of more than two barb teeth 4 and the horizontal plane 11 is 75-80 degrees.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-slipping door-shaped nail comprises two fixing arms inserted into bones of a human body and a crimping arm connected with the two fixing arms and used for low-voltage fixation, and is characterized in that the two fixing arms are symmetrically arranged at two ends of the crimping arm, an arc-shaped transition surface is arranged at the joint of the two fixing arms and the crimping arm, barb teeth are arranged on the inner side surfaces of the two fixing arms, and the two fixing arms are bent in opposite directions; the outer sides of the two fixing arms are provided with cambered surface concave parts, and the cambered surface concave parts correspond to the barb teeth.

2. The anti-slip gate nail of claim 1, wherein: the cambered surface depressed part sets up one at least on every fixed arm.

3. An anti-slip gate nail according to claim 1 or 2, wherein: the two fixed arms are wide at the top and narrow at the bottom in the view along the width direction, the contour lines are line segments, and two adjacent line segments are in transition connection through arcs.

4. The anti-slip gate nail according to claim 3, wherein: and one ends of the two fixing arms far away from the crimping arm are provided with acute-angled insertion ends.

5. The anti-slip gate nail according to claim 3, wherein: when the two fixed arms are bent oppositely, the included angle between the fixed arms and the plumb line is 10-15 degrees.

6. The anti-slip gate nail according to claim 5, wherein: the included angle between the fixed arm and the plumb line is any one angle of 10 degrees, 10.5 degrees, 11 degrees, 11.5 degrees, 12 degrees, 12.5 degrees, 13 degrees, 13.5 degrees, 14.5 degrees and 15 degrees.

7. The anti-slip gate nail according to claim 3, wherein: the number of the barb teeth is 3-6, and the included angle between the connecting line of more than two barb teeth and the horizontal plane is 75-80 degrees.