CN213722339U

CN213722339U - Percutaneous pedicle bone grafting device

Info

Publication number: CN213722339U
Application number: CN202022417318.3U
Authority: CN
Inventors: 罗文东; 赵刚; 舒钧; 袁勇; 林丰; 杨建义; 武林; 张懿; 尹安高; 王成
Original assignee: Second Affiliated Hospital of Kunming Medical University
Current assignee: Second Affiliated Hospital of Kunming Medical University
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-07-20
Anticipated expiration: 2030-10-27

Abstract

The utility model provides a percutaneous vertebral arch root bone grafting device, include seal wire, inner skleeve, outer sleeve, push rod and the bone grafting funnel, the inner skleeve is connected with the seal wire cooperation, inner skleeve and outer sleeve sliding connection, just the one end of bone grafting funnel links to each other with the near-end of outer sleeve, the bone grafting funnel comprises big funnel and little funnel, big funnel is linked together with little funnel, just push rod and outer sleeve phase-match. The utility model discloses simple structure, reasonable in design, and convenient to use, the effectual operation degree of difficulty that reduces the bone grafting funnel to reduce the operation risk, improved work efficiency, more mainly solved the difficult point that percutaneous pedicle of vertebral arch internal fixation planted the bone and avoided postoperative complication.

Description

Percutaneous pedicle bone grafting device

Technical Field

The utility model mainly relates to the technical field of medical instruments, in particular to a percutaneous vertebral arch root bone grafting device.

Background

Among the prior art, bone grafting mainly moves bone tissue to the position that patient internal skeleton is defective, needs are strengthened or fuse through the operation, and current pedicle of vertebral arch bone grafting funnel is open operation design, leads to the bone grafting material of implanting in the vertebra to have the risk of getting into centrum the place ahead, or bone grafting funnel breaks through centrum the place ahead, causes the tissue damage in the abdominal cavity to take place, for percutaneous pedicle of vertebral arch internal fixation technique, this bone grafting funnel's use risk is bigger, and the operation difficulty.

Therefore, there is a need to develop a percutaneous pedicle bone grafting device which is convenient to use, so as to reduce the operation difficulty of the bone grafting funnel, reduce the operation risk and improve the working efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a percutaneous pedicle bone grafting device, which is used for solving the technical problem provided in the background technology.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model provides a bone ware is planted to percutaneous pedicle of vertebral arch, includes seal wire, inner skleeve, outer sleeve, push rod and plants the bone funnel, the inner skleeve is connected with the seal wire cooperation, inner skleeve and outer sleeve sliding connection, just the one end of planting the bone funnel links to each other with the near-end of outer sleeve, it comprises big funnel and little funnel to plant the bone funnel, big funnel is linked together with little funnel, just push rod and outer sleeve phase-match.

Preferably, an X-ray developing marking line is arranged on the outer wall of the guide wire.

Preferably, the outer walls of the guide wire, the inner sleeve and the outer sleeve are provided with scales.

Preferably, the distal end of inner sleeve is equipped with first blunt head, the one side center department that inner sleeve was kept away from to first blunt head is equipped with the through-hole, just the seal wire cooperatees with the through-hole.

Preferably, a second blunt end and a second handle are respectively installed at two ends of the push rod, and the diameter of the push rod is the same as that of the inner sleeve.

Preferably, the first handles are symmetrically arranged on the outer wall of the outer sleeve.

Preferably, the distal end of the outer sleeve may be a straight opening or a tongue-shaped opening having a diameter of 6.0mm, 5.5mm, 5.0mm, 4.5mm, 4.0mm, 3.5mm, 3.0mm and 2.5 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses simple structure, reasonable in design, and convenient to use, the effectual operation degree of difficulty that reduces the bone grafting funnel to reduce the operation risk, improved work efficiency, more mainly solved the difficult point that percutaneous pedicle of vertebral arch internal fixation planted the bone and avoided postoperative complication.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the guide wire structure of the present invention;

FIG. 3 is a cross-sectional view of the inner sleeve structure of the present invention;

fig. 4 is an enlarged view of region a in fig. 1.

In the figure: 1. a guide wire; 11. x-ray development of the marking line; 2. an inner sleeve; 21. a first blunt tip; 211. a through hole; 3. an outer sleeve; 31. a first handle; 4. a push rod; 41. a second blunt tip; 42. a second handle; 5. a bone grafting funnel; 51. a large funnel; 52. a small funnel; 6. and (4) calibration.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Embodiment, please refer to fig. 1 and 4, a percutaneous pedicle bone grafting device comprises a guide wire 1, an inner sleeve 2, an outer sleeve 3, a push rod 4 and a bone grafting funnel 5, wherein the inner sleeve 2 is connected with the guide wire 1 in a matching way, the guide wire 1 is flexible and can be pushed and has a guiding function, the middle of the inner sleeve 2 is hollow and can pass through the guide wire 1, the inner sleeve 2 is connected with the outer sleeve 3 in a sliding way, the distal end of the outer sleeve 3 can be a straight opening or a tongue-shaped opening, the straight opening is shown in fig. 1, one end of the bone grafting funnel 5 is connected with the proximal end of the outer sleeve 3, the bone grafting funnel 5 consists of a large funnel 51 and a small funnel 52, the large funnel 51 is communicated with the small funnel 52, the crushed bone is contained in the large funnel 51, the outlet of the small funnel 52 is connected with the proximal end of the outer sleeve 3, the crushed bone can be pushed into the small funnel 52 from the large funnel 51 by fingers, the push rod 4 is matched with the outer sleeve 3, the inner sleeve 2 and the push rod 4 can just penetrate through the outer sleeve 3, the far end of the inner sleeve 2 is provided with a first blunt end 21, the center of one side, away from the inner sleeve 2, of the first blunt end 21 is provided with a through hole 211, the guide wire 1 is matched with the through hole 211, two ends of the push rod 4 are respectively provided with a second blunt end 41 and a second handle 42, the diameter of the push rod 4 is the same as that of the inner sleeve 2, the injury to a patient can be relieved through the arranged first blunt end 21 and the second blunt end 41, the arranged second handle 42 can facilitate a doctor to push the push rod 4, the outer wall of the outer sleeve 3 is symmetrically provided with a first handle 31, the far end of the outer sleeve 3 can be a straight opening or a tongue-shaped opening, the diameter of the outer sleeve is divided into 6.0mm, 5.5mm, 5.0mm, 4.5mm, 4.0mm, 3.5mm, 3.0mm and 2.5mm, and the outer sleeve 3 can be taken through the arranged first handle 31, the taking is convenient.

In the embodiment, referring to fig. 1 and 2, the guide wire 1 is provided with an X-ray development mark line 11 on the outer wall, and the guide wire 1 is developed under X-ray by the X-ray development mark line 11.

In the embodiment, referring to fig. 1 and 4, the outer walls of the guide wire 1, the inner sleeve 2 and the outer sleeve 3 are all provided with scales 6, and the scales 6 are convenient for a doctor to observe the extending depth of the guide wire 1, the inner sleeve 2 and the outer sleeve 3.

The utility model discloses a concrete operation as follows:

firstly, an inner sleeve 2 is sleeved in an outer sleeve 3, the inner sleeve 2 penetrates into a vertebral body along the percutaneous pedicle of a vertebral arch along a guide wire 1, then the inner sleeve 2 is drawn out, the outer sleeve 3 is kept in the vertebral body, then broken bone is placed in a large funnel 51 of the outer sleeve 3, proper broken bone is pushed into a small funnel 52 by fingers, finally, the broken bone is pushed into the vertebral body along the outer sleeve 3 by a push rod 4, and after bone grafting is completed, skin is sutured.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. The utility model provides a bone ware is planted to percutaneous pedicle of vertebral arch, includes seal wire (1), inner skleeve (2), outer sleeve (3), push rod (4) and implants bone funnel (5), its characterized in that, inner skleeve (2) are connected with seal wire (1) cooperation, inner skleeve (2) and outer sleeve (3) sliding connection, just the one end of implanting bone funnel (5) links to each other with the near-end of outer sleeve (3), implant bone funnel (5) and comprise big funnel (51) and little funnel (52), big funnel (51) are linked together with little funnel (52), just push rod (4) and outer sleeve (3) phase-match.

2. A percutaneous pedicle bone grafting device according to claim 1, characterized in that the guide wire (1) is provided with X-ray visualization marking lines (11) on its outer wall.

3. A percutaneous pedicle bone grafting device according to claim 1, characterized in that the outer walls of the guide wire (1), the inner sleeve (2) and the outer sleeve (3) are provided with graduations (6).

4. A percutaneous pedicle bone grafting device according to claim 1, characterized in that the inner sleeve (2) is provided with a first blunt end (21) at the distal end, a through hole (211) is provided at the center of the first blunt end (21) away from the inner sleeve (2), and the guide wire (1) is matched with the through hole (211).

5. A percutaneous pedicle bone grafting device according to claim 1, characterized in that the push rod (4) is fitted at both ends with a second blunt end (41) and a second handle (42), respectively, and the push rod (4) has the same diameter as the inner sleeve (2).

6. A percutaneous pedicle bone grafting device according to claim 1, characterized in that the outer sleeve (3) has symmetrically mounted on its outer wall a first handle (31).

7. A percutaneous pedicle bone graft as claimed in claim 1, wherein the distal end of the outer sleeve (3) is one of a straight or lingual opening having a diameter of 6.0mm, 5.5mm, 5.0mm, 4.5mm, 4.0mm, 3.5mm, 3.0mm and 2.5 mm.