CN210330827U

CN210330827U - Bone grafting device through conical arch root

Info

Publication number: CN210330827U
Application number: CN201920445142.7U
Authority: CN
Inventors: 伍红桦; 郑伟; 李志强; 刘希麟; 刘达; 陈莹; 顾伟
Original assignee: Western Theater General Hospital of PLA
Current assignee: Western Theater General Hospital of PLA
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-04-17
Anticipated expiration: 2029-04-03

Abstract

The utility model provides a bone grafting device through a conical arch root, which comprises a funnel sleeve, a guide rod and a guide pin, wherein the upper half section of the funnel sleeve is an inverted cone-shaped funnel, the lower half section of the funnel sleeve is a cylindrical conduit, and the diameters of the guide rod and the guide pin are smaller than the inner diameter of the conduit; a handle is arranged at one end of the guide rod, a limiting block is arranged on the guide rod, the diameter of the guide rod is smaller than the inner diameter of the guide pipe, a support handle is arranged on the outer side of the funnel sleeve, the funnel sleeve is made of metal, and scales are arranged on the inner side of the funnel sleeve; when the device is used, prepared granular bones are placed in the funnel sleeve, the support handle is held to align the guide pin with the pedicle wound to guide the granular bones to a bone grafting position, the granular bones are guided by the guide rod and tamped tightly, and bone grafting is completed; the utility model discloses practical process is accurate, safe, convenient, high-efficient to shorten operation time, reduce the amount of bleeding, reduce the infection risk.

Description

Bone grafting device through conical arch root

Technical Field

The utility model belongs to the field of medical equipment for orthopedics, concretely relates to through awl bow root bone grafting ware.

Background

In the bone grafting operation of the vertebral column vertebral compression fracture injury vertebra, because the vertebral pedicle is thin, the implantation of granular bone materials is commonly used for clamping broken bones and filling the broken bones into the vertebral pedicle by using clamping instruments such as tweezers and the like, and then the broken bones are compacted by using a guide pin, so the operation speed is low, the consumed time is long, and the safety is poor. Granular bone grafting is at present often adopted bare-handed operation (tweezers centre gripping) or simply plant the bone device, and the single bone volume of planting is little, even use simply plant the bone device, also there is the single volume of filling little, needs to fill repeatedly, consequently, it is repeated to plant bone operation process, leads to the operation time extension, and the amount of bleeding increases, and the infection risk increases to appear easily that the granule bone drops to important structure around, appear oppression, irritate, the wearing and tearing symptom, perhaps arouse complications such as dystopy ossification. Although various bone grafting instruments exist at present, the clinical requirements of safety and high efficiency cannot be met.

The bone grafting instrument with the publication number of 202537631U comprises a bone grafting instrument body and a piston body, wherein the bone grafting instrument body is of a hollow columnar structure, the piston body is positioned in the bone grafting instrument body, a bone grafting instrument body handle is arranged at the rear end of the bone grafting instrument body, and a piston body handle is arranged at the rear end of the piston body. The bone grafting instrument is a novel injection type bone grafting method at present, but the structure of the bone grafting instrument determines that the bone grafting instrument cannot perform accurate injection and unexpected filler dropping is easy to generate, so that the bone grafting instrument is not suitable for practical clinical application.

As another example, the bone grafting injector with publication number 203208100U comprises a bone grafting device body and a push rod, wherein the push rod is arranged in the bone grafting device body, the rear end of the bone grafting device body is provided with an arc-shaped body handle, the bone grafting device body is provided with a scale, the front end of the bone grafting device body is provided with a conical end cover, and the conical end cover is provided with a cap. Although the bone grafting instrument tries to improve the implantation precision through the graduated scale and the conical end cover, the bone grafting instrument cannot deeply penetrate into a wound without splashing filler due to a non-invasive structure, so that the improvement of the filling effect is limited, and a gap is easily generated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned problem, provide a bone grafting ware of high accuracy, safety and facilitate the use.

Therefore, the utility model provides a through awl bow root bone grafting ware specifically includes funnel sleeve, guide rod and guide pin, and the first section of funnel sleeve is the obconic funnel, and the cylindrical pipe of second section, the diameter of guide rod and guide pin are less than the internal diameter of pipe.

Furthermore, a handle is arranged at one end of the guide rod, so that the handle is convenient to grip, and a limit block is arranged on the guide rod to limit the insertion depth of the guide rod, so that the operation is safer; the other end is in a shape of a slant tip.

Furthermore, the front end of the guide pin is conical and pointed.

Further, the funnel sleeve is made of metal materials, and scales are arranged on the inner side of the upper half section, so that the granular bones can be quantified.

Furthermore, a support handle is arranged on the outer side of the funnel sleeve and is perpendicular to the axial direction of the funnel sleeve, and operation is also convenient.

Preferably, the holder handle is circular.

Preferably, the diameter of the guide pin is 0.3 mm; the diameter of the guide rod is 0.4 mm; the length of the lower half section of the guide pipe of the funnel sleeve is 10cm, the inner diameter of the lower half section of the guide pipe is 0.5mm, and the operation accuracy is guaranteed.

The utility model has the advantages that:

1. accurate direction and location can be realized to the setting of funnel sleeve pipe and guide pin to guarantee going on of accurate location and the bone grafting of the defective position of bone.

2. The telescopic setting of funnel has avoided the particulate matter to drop to about the important structure to the risk of having reduced the granule bone oppression that appears shedding, having irritated, wearing and tearing organizational structure on every side.

3. The invention has simple structure and ingenious design, and can ensure that the bone grafting process is safe, accurate, convenient and efficient, thereby shortening the operation time, reducing the amount of bleeding and reducing the infection risk.

Drawings

Fig. 1 is a schematic structural view of a funnel sleeve of the present invention.

FIG. 2 is a schematic view of the guide bar of the present invention.

FIG. 3 is a schematic diagram of a lead structure according to the present invention.

Detailed Description

The invention is described in further detail below with reference to the drawings and specific methods of use.

The utility model discloses a through awl bow root bone grafting ware specifically includes funnel sleeve 1, leads excellent 2 and guide pin 3, and funnel sleeve 1 first section is the obconic funnel, and the cylindrical pipe of second section, the diameter of leading excellent 2 and guide pin 3 is less than the internal diameter of pipe.

Further, one end of the guide rod 2 is provided with a handle 21, and the guide rod is provided with a limiting block 22; the other end is in a shape of a slant tip.

Further, the front end of the guide pin 3 is conical.

Further, the funnel sleeve 1 is made of metal, and scales are arranged on the inner side of the upper half section.

Further, a support handle 4 is arranged on the outer side of the funnel sleeve 1, and the support handle 4 is perpendicular to the axial direction of the funnel sleeve 1.

Preferably, the holder 4 is circular.

Preferably, the diameter of the guide pin 3 is 0.3 mm; the diameter of the guide rod 2 is 0.4 mm; the length of the lower half section of the guide pipe of the funnel sleeve is 10cm, and the inner diameter of the guide pipe is 0.5 mm.

Methods of use and clinical applications: after the pedicle of vertebral arch is drilled, the prepared granular bone is placed in the funnel sleeve 1, the support handle 4 is held to align the guide pin 3 with the pedicle of vertebral arch wound to guide the granular bone to the bone grafting position, the granular bone is guided by the guide rod 2 and is tamped tightly, and the bone grafting is completed. The whole process is accurate, safe, convenient and efficient, thereby shortening the operation time, reducing the amount of bleeding and reducing the infection risk.

Claims

1. The utility model provides a bone grafting device through awl bow root which characterized in that, includes funnel sleeve (1), guide rod (2) and guide pin (3), funnel sleeve (1) first section is the obconic funnel, and half cylindrical pipe down, the diameter of guide rod (2) and guide pin (3) is less than the internal diameter of pipe.

2. The bone grafting device through the pedicle of a cone arch as claimed in claim 1, wherein one end of the guide rod (2) is provided with a handle (21), and the guide rod (2) is provided with a limiting block (22).

3. The transfigural pedicle bone grafting device according to claim 2, wherein the front end of the guide rod (2) is obliquely pointed.

4. The transfigural pedicle bone grafting device according to claim 1, wherein the front end of the guide pin (3) is tapered.

5. The transfigural pedicle bone grafting device according to claim 1, wherein the funnel sleeve (1) is made of metal, and the inner side of the upper half section is provided with a scale.

6. The transfixal arch root bone grafting device according to claim 5, wherein a support handle (4) is arranged outside the funnel sleeve (1), and the support handle (4) is perpendicular to the axial direction of the funnel sleeve (1).

7. The transforaminal pedicle bone grafting device as claimed in claim 6, wherein said holder handle (4) is circular.

8. The transfigural pedicle bone grafting device according to claim 1, wherein the guide pin (3) has a diameter of 0.3 mm; the diameter of the guide rod (2) is 0.4 mm; the funnel sleeve conduit was 10cm in length and 0.5mm in internal diameter.