CN215228127U

CN215228127U - C-shaped arm drilling guide device for orthopedics department

Info

Publication number: CN215228127U
Application number: CN202121296343.9U
Authority: CN
Inventors: 陈金洪; 肖志坚; 蓝国华
Original assignee: Hangzhou Fuyang Hosiptal Of Traditional Chinese Medical Orthopedics
Current assignee: Hangzhou Fuyang Hosiptal Of Traditional Chinese Medical Orthopedics
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-12-21
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses a C shape arm drilling guider for orthopedics specifically includes C shape arm body, threaded sleeve and smooth sleeve pipe, and the one end of C shape arm body is provided with the clamping part, other end fixedly connected with internal thread hollow stud, be equipped with the external screw thread with internal thread hollow stud looks adaptation on the pipe wall of the threaded sleeve outside, threaded sleeve passes internal thread hollow stud and is in the same place with internal thread hollow stud threaded connection, smooth sleeve pipe sliding fit is intraductal at the threaded sleeve. The utility model discloses C shape arm rigidity is high, and non-deformable can control the position of needle point and play needle point when bare-handed drilling simultaneously. The two ends of the bone block are firmly held in the drilling process, so that the bone block cannot be restored and lost, and the drift of the needle inlet point and the needle outlet point cannot be caused.

Description

C-shaped arm drilling guide device for orthopedics department

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to C shape arm drilling guider for orthopedics.

Background

Currently, the most common bone mass displacement of humeral intercondylar fracture, femoral intercondylar fracture and tibial plateau fracture is left-right displacement or inside-outside displacement on a front-back X-ray. In the process of surgery, no matter direct screw fixation or steel plate screw fixation, a transverse long screw needs to be screwed in, but the transverse long screw guide pin is difficult to be planned, the needle can be easily selected, and the needle outlet point cannot be controlled. If the needle-out point is too far from the desired position, the screw fixation loses its original effect and may even have unexpected and serious consequences. In the past operation, the user only determines the own needle output point according to experience and hand feeling, the experience and hand feeling often deceive the user, and if the needle output point is not ideal, the user can only adjust the needle output point and re-drill the electric drill, so that the operation effect is influenced. In fact, bones with some positions are very small, the fault-tolerant interval of needle outlet points is very narrow, and the failure rate of the operation is improved.

SUMMERY OF THE UTILITY MODEL

To the problem of prior art's existence, the utility model aims to provide a C shape arm drilling guider for orthopedics that has the centre gripping rigidity height, and it is accurate to go out the needle point.

The utility model discloses a following technical scheme realizes:

the utility model provides an orthopedics is with C shape arm drilling guider, its characterized in that includes C shape arm body, threaded sleeve and smooth sleeve pipe, the one end of C shape arm body is provided with the clamping part, C shape arm body other end fixedly connected with internal thread hollow stud, be equipped with on the pipe wall of threaded sleeve outside with the external screw thread of internal thread hollow stud looks adaptation, threaded sleeve pipe pass internal thread hollow stud and with internal thread hollow stud threaded connection is in the same place, smooth sleeve pipe sliding fit is in the threaded sleeve pipe.

Furthermore, the end surface of the threaded sleeve close to the clamping part and the end surface of the clamping part opposite to the threaded sleeve are provided with fine sawteeth.

Furthermore, one end of the threaded sleeve, which is far away from the clamping part, is provided with a first handle, and one end of the smooth sleeve, which is far away from the threaded sleeve, is provided with a second handle.

Furthermore, the first handle and the second handle are both provided with mesh lines convenient to rotate.

Further, the smooth sleeve has an inner diameter of 2mm, 4mm or 6 mm.

Further, the smooth sleeve has an outer diameter equal to the threaded sleeve inner diameter.

Furthermore, a small hole for bearing the guide pin is formed in the center of the clamping part.

The design of the C-shaped arm of the utility model is that the C-shaped radian is larger and can accommodate the space requirement of larger soft tissues such as thigh tissues and the like. Simultaneously, C shape arm rigidity is stronger, and non-deformable can not use the not easily crooked for a long time repeatedly to can control the position of needle point and play needle point when can the bare-handed drilling of long screw. The guiding device firmly grips the two ends of the bone block in the drilling process, the bone block cannot be reset and lost, and the drift of the needle inlet point and the needle outlet point cannot be caused.

Drawings

Fig. 1 is a front installation schematic view of the C-arm drill guide of the present invention;

fig. 2 is a schematic view of a C-arm body of the C-arm drill guide of the present invention;

fig. 3 is a schematic view of the threaded bushing of the C-arm drill guide of the present invention;

fig. 4 is a schematic view of a smooth casing of the C-arm drill guide of the present invention;

in the figure: 1-C-shaped arm body, 101-clamping part, 102-internal thread hollow stud, 103-small hole, 2-thread sleeve, 201-first handle, 3-smooth sleeve, 301-second handle and 4-fine sawtooth.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The technical scheme of the utility model is described in detail below with the accompanying drawings of the specification:

referring to fig. 1-4, the present invention provides an orthopedic C-shaped arm drilling guide device, which comprises a C-shaped arm body 1, a threaded sleeve 2 and a smooth sleeve 3, wherein one end of the C-shaped arm body 1 is provided with a clamping portion 101, and the other end is fixedly connected with an internal threaded hollow stud 102. The outer side pipe wall of the threaded sleeve 2 is provided with an external thread matched with the internal thread hollow stud 102, and the threaded sleeve 2 penetrates through the internal thread hollow stud 102 and is in threaded connection with the internal thread hollow stud 102. The smooth sleeve 3 is a sliding fit within the threaded sleeve 2. The utility model discloses during the use, with threaded sleeve 2 screw in internal thread hollow stud 102, the bone piece that will need the fix with screw is fixed with the centre gripping of threaded sleeve 2 one end through the clamping part 101 of 1 one end of C shape arm body, and smooth sleeve 3 is packed into in the threaded sleeve 2, and the drilling guide pin stretches into from smooth sleeve 3's middle through-hole, until boring into the bone piece. Because the utility model discloses fixed centre gripping is static for the bone piece on the bone piece, and smooth sleeve pipe 3 plays the positioning action to the drilling guide pin for the needle outlet of drilling guide pin is accurate at the clamping part 101 center of C shape arm body 1.

Continuing to refer to fig. 2, the design of the C-shaped arm of the present invention is that the space requirement of the larger soft tissue such as thigh tissue can be accommodated because the arc of the C-shape is larger. The C-shaped arm has strong rigidity, is not easy to deform and is not easy to bend after being repeatedly used for a long time. Meanwhile, a small hole 103 for bearing a guide pin is formed in the center of the clamping part 101, the top end of the drilling guide pin is pressed against the small hole 103 when penetrating, a screw can extend out to prevent the clamping part 101 from being drilled, therefore, the center of the clamping part 101, the centers of the threaded sleeve 2 and the smooth sleeve 3 are on the same straight line, and the positions of a needle inlet point and a needle outlet point can be controlled when the clamping part is drilled by hands.

The utility model discloses in, in order to firmly centre gripping bone piece, threaded sleeve 2 is close to all to be equipped with serration 4 on the terminal surface of clamping part 101 and the terminal surface that clamping part 101 is relative with threaded sleeve 2. The guiding device firmly grips the two ends of the bone block in the drilling process, the bone block cannot be reset and lost, and the drift of the needle inlet point and the needle outlet point cannot be caused.

Meanwhile, in order to more easily turn the internal thread hollow stud 102 and facilitate the placement of the smooth sleeve 3, a first handle 201 is arranged at one end of the threaded sleeve 2 away from the clamping part 101, and a second handle 301 is arranged at one end of the smooth sleeve 3 away from the threaded sleeve 2. Meanwhile, the first handle 201 and the second handle 301 are both provided with mesh lines convenient to rotate, so that the friction of a knob is increased, and the screw thread sleeve 2 is easier to turn.

The utility model discloses in, in order to adapt to under different medical conditions, to the restoration of tiny bone piece, smooth sleeve pipe 3's internal diameter can change the replacement. The smooth sleeve 3 has an outer diameter equal to the inner diameter of the threaded sleeve 2, regardless of the inner diameter, matching each other and being freely insertable into the threaded sleeve 2. The internal diameter of smooth sleeve pipe 3 can set to different sizes according to the electric drill guide pin needs of difference, and preferred size is 2mm, 4mm, 6mm internal diameter respectively one.

When using the utility model discloses the time, will reset good condyle bone piece, reset pincers or ke shi needle temporary fixation bone piece, arrange C shape arm body 1 in the bone piece both ends outside that needs the screw of beating length, put into internal thread hollow stud 102 the inside with threaded sleeve 2, screw in threaded sleeve 2 adjusts best needle insertion point and needle extraction point on one side, until threaded sleeve 2 screws completely. According to the requirements of bone block size and fixing screw thickness selecting smooth sleeve 3 with proper internal diameter and placing it into the screw sleeve 2. The electric drill guide pin is driven to the tail end along the second handle end of the inner hole of the smooth sleeve 3 until the electric drill guide pin is held by the small hole 103 on the clamping part 101 at one end of the C-shaped arm body 1. And (4) withdrawing the electric drill, unscrewing the threaded sleeve 2, removing the whole C-shaped arm body 1, measuring the depth, and screwing the compression screw.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides an orthopedics is with C shape arm drilling guider, its characterized in that includes C shape arm body (1), threaded sleeve pipe (2) and smooth sleeve pipe (3), the one end of C shape arm body (1) is provided with clamping part (101), C shape arm body (1) other end fixed connection has internal thread hollow stud (102), be equipped with on the pipe wall of threaded sleeve pipe (2) outside with the external screw thread of internal thread hollow stud (102) looks adaptation, threaded sleeve pipe (2) pass internal thread hollow stud (102) and with internal thread hollow stud (102) threaded connection is in the same place, smooth sleeve pipe (3) sliding fit is in threaded sleeve pipe (2).

2. The C-arm drill guide for orthopedics department as set forth in claim 1, characterized in that the end surface of the threaded sleeve (2) near the clamping portion (101) and the end surface of the clamping portion (101) opposite to the threaded sleeve (2) are provided with serrations (4).

3. The C-arm drill guide for orthopedics department as set forth in claim 1, characterized in that the end of the threaded sleeve (2) away from the clamping portion (101) is provided with a first handle (201), and the end of the smooth sleeve (3) away from the threaded sleeve (2) is provided with a second handle (301).

4. An orthopaedic C-arm drill guide according to claim 3, wherein said first handle (201) and said second handle (301) are provided with a mesh thread to facilitate rotation.

5. An orthopaedic C-arm drill guide according to claim 1, wherein the smooth sleeve (3) has an internal diameter of 2mm, 4mm or 6 mm.

6. An orthopaedic C-arm drill guide according to claim 1, wherein the external diameter of the smooth sleeve (3) is equal to the internal diameter of the threaded sleeve (2).

7. The C-arm drill guide device for orthopedics department according to claim 1, characterized in that the centre of the clamping part (101) is provided with a small hole (103) for bearing the guide pin.