CN215129943U

CN215129943U - Nail extractor for orthopedic operation

Info

Publication number: CN215129943U
Application number: CN202120451454.6U
Authority: CN
Inventors: 赵军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-12-14
Anticipated expiration: 2031-03-02

Abstract

The utility model discloses a nail extractor for orthopedic surgery, belonging to the technical field of nail extractor for orthopedic surgery; the nail taking rod is coaxially arranged with the external thread sleeve and is in sliding connection with the external thread sleeve, a plurality of sliding grooves are longitudinally formed in the inner wall of the external thread sleeve, a convex block matched with the sliding grooves is arranged on the outer surface of the nail taking rod, and the nail taking sleeve is arranged at the lower end of the nail taking rod; the utility model discloses get the nail ware and get nail swift convenient, get nail process reliable and stable, improve medical personnel's work efficiency greatly, reduce the pain of patient's health.

Description

Nail extractor for orthopedic operation

Technical Field

The utility model relates to an orthopedic operation is with getting nail ware especially relates to an orthopedic operation is with getting nail ware, belongs to orthopedic operation with getting nail instrument technical field.

Background

In orthopedic wound medical surgery such as fracture repair, a frequently used treatment method is an internal fixation operation, that is, after a fracture part is reduced, a bone plate and screws supported by metal materials are used for connecting the reduced bones, and after the fracture part is recovered, the screws need to be removed through another operation.

Medical personnel are to the screw of patient's health, it gets the nail to hold the screwdriver usually, carry on spacingly to the screwdriver with the hand simultaneously, must be full of attention when getting the nail, so hold the screwdriver for a long time and get the nail, medical personnel's health is easy to fatigue, thereby can reduce and get nail efficiency, lead to doctor's distraction to cause unnecessary injury to patient, the in-process of getting the nail still can deviate the central axis of nail even, increase the degree of difficulty of getting the nail, get nail efficiency in order to improve, some take out the screw through electric hand drill, and electric hand drill is when getting the nail, can produce vibrations, so bring the pain of hindering for patient easily. In addition, the existing nail extractor for orthopedic surgery is inconvenient for medical staff to install and adjust, and influences the nail extracting work of the medical staff; the operation is complex, the nail taking speed is slow, and the pain of the wounded is easy to increase; the application of some loose and easy-to-pull bone nails is time-consuming and labor-consuming.

The half-thread cancellous bone screw and the half-thread hollow nail are widely applied in orthopedic surgery, the common nail taking tool has structural limitation, only the hollow nail can be rotated, the bone density of old patients is low, and the threads are difficult to form on the bone, so that the bone nail cannot be taken out conveniently; secondly, part of bone nails are tightly combined with the bone, and the bone is damaged greatly by using the locking pliers extractor, thereby causing unnecessary pain to patients. When some screws rotate reversely, the screws cannot be screwed out continuously after rotating to a certain position and only idle in situ, and particularly, the phenomenon of half-thread cancellous bone screws and half-thread hollow screws is more obvious; the condition causes that the bone nails can not even be taken out after the fracture of some patients is healed and only can be left in the body, thereby causing the physical and psychological troubles of the patients.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a nail extractor for orthopedic surgery.

The utility model adopts the technical proposal that: a nail extractor for orthopedic surgery is designed, which comprises a supporting frame, an internal thread sleeve, an external thread sleeve, a nail extracting rod and a nail extracting sleeve, the middle part of the support frame is fixedly connected with an internal thread sleeve, the internal thread sleeve is internally connected with an external thread sleeve in a threaded manner, the nail taking rod and the external thread sleeve are coaxially arranged and are in sliding connection with the external thread sleeve, namely, the nail taking rod can slide up and down along the external thread sleeve, the inner wall of the external thread sleeve is longitudinally provided with a plurality of sliding chutes, the outer surface of the nail taking rod is provided with a convex block matched with the sliding groove, the convex block is matched with the sliding groove, can drive the external screw thread sleeve rotatory when the rotatory nail pole of getting, through external screw thread sleeve and internal thread telescopic connected mode, borrow the power with the help of helicitic texture, steadily outwards take out stubborn screw, get nail pole lower extreme and set up and get the nail sleeve pipe and make things convenient for the follow-up nail operation of getting with the steady screw of cover.

Further, the support frame includes holding ring, pillar, reinforcement ring and flange plate, holding ring upper surface annular array sets up two piece at least pillars, preferably four, the pillar upper surface sets up flange plate, pillar lower part clearance is provided with two at least reinforcement rings, preferably three reinforcement ring, consolidates the support frame, and when using this nail ware of getting, the position that sets up reinforcement ring still can be used to medical personnel to grip.

Further, the locating ring lower surface is arranged with a plurality of hemisphere protruding, the hemisphere protruding is covered with whole locating ring lower surface, provides frictional resistance, avoids getting the slip in the nail ware use.

Furthermore, the pillar penetrates through the ring surface of the reinforcing ring and is fixedly connected with the reinforcing ring, so that the connection is stable and reliable, the structural strength is high, and the pillar is firm and durable.

Further, the flange board includes that ring portion and symmetry set up in two pterygoid laminas of ring portion, and the flange board is used for binding the pillar upper end on the one hand, and on the other hand can be used to the initial power of borrowing when getting the nail, the flange board upper surface is provided with the stripe horizontal bar, facilitates the use and borrows the power.

Furthermore, the lower end face of the internal thread sleeve is higher than the upper surface of the positioning ring, a gap is reserved to facilitate observation and operation of the firm screw of the screw taking sleeve, the situation of the screw taking position is observed at any time in the screw taking process, and the upper end face of the internal thread sleeve is lower than the lower surface of the flange plate.

Furthermore, the distance between the lower end face of the internal thread sleeve and the upper surface of the positioning ring and the distance between the upper end face of the internal thread sleeve and the lower surface of the flange plate are both smaller than the height of the external thread sleeve, so that the external thread sleeve is prevented from being separated from the internal thread sleeve.

Furthermore, the outer side surface of the reinforcing ring is provided with an annular groove, and the annular groove is arranged in the middle of the outer side surface of the reinforcing ring, so that friction force is provided when the medical personnel hold the fixing device, and slipping is reduced.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a holding ring, internal thread sleeve, external screw thread sleeve and flange board etc. carry on spacingly to getting the nail pole, reduce medical personnel work burden, convenient operation is accurate, alleviates medical personnel health pressure, improves and gets nail efficiency, is difficult for causing unnecessary injury to patient because of the distraction during use, reduces the condition of getting the central axis of nail in-process skew nail, reduces the degree of difficulty of getting the nail, alleviates the painful sense of patient's injury. The whole nail taking device is simple and practical in structure, convenient for medical staff to install and adjust, capable of further improving the nail taking speed, and fast in nail taking speed for some loosened and easily pulled bone nails.

Aiming at the structural limitation of a common nail taking tool, only a hollow nail can be rotated, the bone density of an old patient is low, and a thread is difficult to form on a bone, so that the bone nail cannot be taken out conveniently, part of the bone nail is tightly combined with the bone, the bone is damaged greatly by using a locking pliers taking-out device, and unnecessary pain is caused to the patient; in a similar way, the problem that when the existing screw rotates reversely, the screw cannot be screwed out continuously after rotating to a certain position and only can idle in situ can be solved, and particularly the phenomenon of the half-thread cancellous screw and the half-thread hollow screw is more obvious; the screw can be taken out by the patient as much as possible, so that the physical and psychological troubles of the patient are reduced.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic cross-sectional view of the present invention.

Fig. 3 is a schematic view of the support frame of the present invention.

Fig. 4 is a schematic view of the internal thread sleeve of the present invention.

Fig. 5 is a schematic view of the external thread sleeve of the present invention.

Fig. 6 is a schematic view of the nail-taking rod of the present invention.

In the figure: 1-support frame, 2-internal thread sleeve, 3-external thread sleeve, 4-nail taking rod, 5-nail taking sleeve, 6-chute and 7-lug.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be construed broadly and include, for example, fixed connections, detachable connections, or integral connections; 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 in specific cases to those skilled in the art.

In addition, in the description of the present invention, unless otherwise specified, the terms "plurality", and "plural groups" mean two or more, and the terms "a plurality", and "a plurality" mean one or more. In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are used, they are only used for convenience of description and simplification of the description, and they do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus should not be construed as limiting the present invention. Furthermore, the use of the terms first, second and third are used for descriptive purposes only and are not intended to indicate or imply relative importance.

Example 1

As shown in fig. 1-6: the utility model provides an orthopedic operation is with getting nail ware, includes support frame 1, internal thread sleeve 2, external screw thread sleeve 3, gets nail pole 4 and gets nail sleeve 5, 1 middle part fixed connection internal thread sleeve 2 of support frame, 2 internal thread sleeve internal thread threaded connection external screw thread sleeves 3, get nail pole 4 and the coaxial setting of external screw thread sleeve 3 and with external screw thread sleeve 3 sliding connection, 3 inner walls of external screw thread sleeve vertically are provided with many spouts 6, get 4 surfaces of nail pole be provided with spout 6 complex lug 7, get 4 lower extremes of nail pole and set up and get nail sleeve 5.

The support frame 1 comprises a positioning ring, pillars, reinforcing rings and flange plates, wherein the positioning ring is provided with at least two pillars in an annular array mode, the flange plates are arranged on the upper surfaces of the pillars, and the lower portions of the pillars are provided with at least two reinforcing rings. A plurality of hemispherical bulges are distributed on the lower surface of the positioning ring. The support column penetrates through the annular surface of the reinforcing ring and is fixedly connected with the reinforcing ring. The flange plate includes ring portion and symmetry and sets up in two pterygoid laminas of ring portion, the flange plate upper surface is provided with the stripe horizontal bar. The lower end face of the internal thread sleeve 2 is higher than the upper surface of the positioning ring, and the upper end face of the internal thread sleeve 2 is lower than the lower surface of the flange plate.

The distance between the lower end face of the internal thread sleeve 2 and the upper surface of the positioning ring and the distance between the upper end face of the internal thread sleeve 2 and the lower surface of the flange plate are both smaller than the height of the external thread sleeve 3. The outer side surface of the reinforcing ring is provided with an annular groove, and the annular groove is arranged in the middle of the outer side surface of the reinforcing ring.

While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides an orthopedic operation is with getting nail ware which characterized in that: including support frame (1), internal thread sleeve (2), external screw thread sleeve (3), get nail pole (4) and get nail sleeve pipe (5), support frame (1) middle part fixed connection internal thread sleeve (2), internal thread sleeve (2) internal thread connects external screw thread sleeve (3), get nail pole (4) and external screw thread sleeve (3) coaxial setting and with external screw thread sleeve (3) sliding connection, external screw thread sleeve (3) inner wall vertically is provided with many spout (6), get nail pole (4) surface be provided with spout (6) complex lug (7), it sets up and gets nail sleeve pipe (5) to get nail pole (4) lower extreme.

2. The bone surgery nail extractor as set forth in claim 1, wherein: the support frame (1) comprises a positioning ring, pillars, reinforcing rings and flange plates, wherein the annular array on the upper surface of the positioning ring is provided with at least two pillars, the flange plates are arranged on the upper surface of the pillars, and the lower parts of the pillars are provided with at least two reinforcing rings.

3. The bone surgery staple remover as set forth in claim 2, wherein: a plurality of hemispherical bulges are distributed on the lower surface of the positioning ring.

4. The bone surgery staple remover as set forth in claim 2, wherein: the support column penetrates through the annular surface of the reinforcing ring and is fixedly connected with the reinforcing ring.

5. The bone surgery staple remover as set forth in claim 2, wherein: the flange plate includes ring portion and symmetry and sets up in two pterygoid laminas of ring portion, the flange plate upper surface is provided with the stripe horizontal bar.

6. The bone surgery staple remover as set forth in claim 2, wherein: the lower end face of the internal thread sleeve (2) is higher than the upper surface of the positioning ring, and the upper end face of the internal thread sleeve (2) is lower than the lower surface of the flange plate.

7. The bone surgery nail extractor as set forth in claim 6, wherein: the distance between the lower end face of the internal thread sleeve (2) and the upper surface of the positioning ring and the distance between the upper end face of the internal thread sleeve (2) and the lower surface of the flange plate are both smaller than the height of the external thread sleeve (3).

8. The bone surgery staple remover as set forth in claim 2, wherein: the outer side surface of the reinforcing ring is provided with an annular groove, and the annular groove is arranged in the middle of the outer side surface of the reinforcing ring.