CN114209477A

CN114209477A - Novel bone grafting device

Info

Publication number: CN114209477A
Application number: CN202111562372.XA
Authority: CN
Inventors: 蒋利锋; 吴立东; 熊炎; 祝俊雄; 章淼锋
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-03-22
Anticipated expiration: 2041-12-20
Also published as: CN114209477B

Abstract

The invention relates to a novel bone grafting device, which comprises a barrel body, a barrel cap and a push rod component: the utility model discloses a bone grafting device, including barrel and barrel cap, push rod subassembly, barrel lateral wall are equipped with through-hole and adjusting device, and the bottom of barrel is connected with the hose, be equipped with circular port and feed port on the barrel cap top surface, be equipped with the regulation hole on the barrel cap lateral wall, be equipped with the sliding plate in the barrel cap, the sliding plate sets up with feed port and regulation hole cooperation, push rod subassembly includes first push rod, second push rod, helical blade and pull throughs, and for current bone grafting device, the feed port sets up on barrel cap top surface, and it is more convenient to add the broken bone, and the side does not have outstanding position during the use, and is more convenient.

Description

Novel bone grafting device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a novel bone grafting device.

Background

Bone grafting is the surgical implantation of bone tissue to the site of a bone defect, requiring reinforcement or fusion in a patient. In clinical operation, a bone grafting device is generally used for pushing broken bones to bone loss positions, and most of the bone grafting devices in the prior art use bone grafting tubes;

among the prior art, still there is the technical problem who is difficult to overcome, for example the broken bone is before through porose clamp plate, easily because extrusion or position are not to leading to its unable fine porose clamp plate of passing through, simultaneously when through porose clamp plate, the broken bone is very easily glued on the device's lateral wall again, can't be pushed the bone grafting position, cause the waste, at the in-process of operation, current bone grafting pipe tail pipe is the straight form of hardness mostly, use that can not be fine at some angles, be unfavorable for pushing the broken bone to skeleton disappearance department.

Disclosure of Invention

The invention aims to provide a novel bone grafting device, which aims to overcome the defects of the prior novel bone grafting device in use in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel bone grafting device, includes barrel, barrel cap and push rod subassembly: the barrel body is matched and connected with the barrel cap, the push rod assembly is matched and arranged with the barrel cap, the side wall of the barrel body is provided with a through hole and an adjusting device, the bottom end of the barrel body is connected with a hose, the top surface of the barrel cap is provided with a circular hole and a feeding hole, the side wall of the barrel cap is provided with an adjusting hole, the barrel cap is internally provided with a sliding plate, the sliding plate is matched and arranged with the feeding hole and the adjusting hole, the push rod assembly comprises a first push rod, a second push rod, a helical blade and a dredging device, the first push rod comprises a first handle and a first rod body, the first handle is connected to the top of the first rod body, the second push rod comprises a second handle and a second rod body, the second handle is connected to the top of the second rod body, the helical blade and the dredging device are connected to the side wall of the first rod body, the helical blade is positioned below the top surface of the barrel cap, and the dredging device is positioned below the helical blade, the utility model discloses a device for dredging the flat tube, including first body of rod, adjusting device, adjusting button, dredging piece, reset spring, adjusting button, dredging axle and reset spring, the first body of rod lateral wall is connected to the second body of rod cover, adjusting device comprises adjusting button and press spring, the adjusting button passes through press spring to be connected on the through-hole, dredging device comprises dredging piece, dredging axle and reset spring, the dredging axle sets up on the horizontal symmetry axis of dredging piece, the dredging axle passes through reset spring cooperation to be connected on first body of rod lateral wall, the adjusting button sets up with the cooperation of dredging axle.

Preferably, the cylinder body is at least provided with a coarse aperture section and a fine aperture section in the extension direction of the central shaft, and the outer diameter of the helical blade is sequentially matched with the corresponding coarse aperture section and/or fine aperture section.

Preferably, the diameter of the thick bore section increases gradually in the direction from the feed inlet to the discharge outlet of the cylinder, the diameter of the thin and thick bore section increases gradually in the direction from the feed inlet to the discharge outlet of the cylinder, and the thick bore section and the thin bore section are arranged at intervals and are multiple, and the height is 0.1-0.05 mm.

Preferably, the barrel body is connected with the barrel cap in a threaded fit mode, and the push rod assembly is connected to the barrel cap through a circular hole.

Preferably, the feed hole and the sliding plate are fan-shaped and have the same size, and the sliding plate is provided with a small bump which can pass through the adjusting hole.

Preferably, the number of the through holes, the adjusting devices and the dredging devices is two, and the two through holes are symmetrically arranged.

Preferably, a center hole penetrates through the first rod body from top to bottom, the second rod body is a cylinder, and the outer diameter of the second rod body is in interference fit with the inner diameter of the center hole of the first rod body.

Preferably, the first handle comprises a left pressure lever and a right pressure lever, and the left pressure lever and the right pressure lever are symmetrically connected to two sides of the top of the first rod body.

Preferably, the hose is a metal hose or a plastic hose.

Compared with the prior art, the invention has the beneficial effects that:

1. compared with the existing bone grafting device, the feeding hole is formed in the top surface of the cylinder cap, so that broken bones are more conveniently added, and no protruding part is arranged on the side surface when the bone grafting device is used, so that the bone grafting device is more convenient;

2. the spiral blades are arranged in the barrel, so that broken bones are prevented from being attached to the barrel wall of the barrel during feeding, and blockage and material waste are avoided;

3. if broken bones are blocked below or attached to the cylinder wall, the blocked or attached broken aggregates can be dredged by arranging the dredging device below;

4. the hose is arranged below the barrel body, so that the bone can be implanted at special parts during use by adjusting the hose, and the use is more convenient.

Drawings

FIG. 1 is a schematic view of the present invention, showing an internal perspective effect;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a schematic view of a cartridge cap in the configuration of the present invention;

FIG. 4 is a schematic view of an adjustment device in the configuration of the present invention;

in the figure: 1. a barrel; 2. a cartridge cap; 3. a push rod assembly; 11. a through hole; 12. an adjustment device; 13. a hose; 21. a circular hole; 22. a feed port; 23. an adjustment hole; 24. a sliding plate; 31. a first push rod; 32. a second push rod; 33. a helical blade; 34. a dredging device; 121. an adjusting knob; 122. a pressing spring; 311. a first handle; 312. a first rod body; 321. a second handle 322, a second rod body; 341. dredging tablets; 342. a dredging shaft; 3111. a left compression bar; 3112. and a right pressure lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention relates to a novel bone grafting device, which comprises a cylinder body 1, a cylinder cap 2 and a push rod component 3: the barrel body 1 is matched and connected with the barrel cap 2, the push rod component 3 is matched and arranged with the barrel cap 2, the side wall of the barrel body 1 is provided with a through hole 11 and an adjusting device 12, the bottom end of the barrel body 1 is connected with a hose 13, the top surface of the barrel cap 2 is provided with a circular hole 21 and a feeding hole 22, the side wall of the barrel cap 2 is provided with an adjusting hole 23, the barrel cap 2 is internally provided with a sliding plate 24, the sliding plate 24 is matched and arranged with the feeding hole 22 and the adjusting hole 23, the push rod component 3 comprises a first push rod 31, a second push rod 32, a spiral blade 33 and a dredging device 34, the first push rod 31 comprises a first handle 311 and a first rod body 312, the first handle 311 is connected with the top of the first rod body 312, the second push rod 32 comprises a second handle 321 and a second rod body 322, the second handle 321 is connected with the top of the second rod body 322, the spiral blade 33 and the dredging device 34 are connected with the side wall of the first rod body 312, helical blade 33 is located 2 top surfaces below of section of thick bamboo cap, pull throughs 34 is located helical blade 33 below, first body of rod 312 is arranged in to second body of rod 322 cover, adjusting device 12 comprises adjusting knob 121 and pressure spring 122, adjusting knob 121 connects on through-hole 11 through pressure spring 122, pull throughs 34 comprises mediation piece 341, mediation axle 342 and reset spring, mediation axle 342 sets up on the horizontal symmetry axis of mediation piece 341, mediation axle 342 passes through the reset spring cooperation and connects on first body of rod 312 lateral wall, adjusting knob 121 sets up with mediation axle 342 cooperation.

The cylinder 1 is at least provided with a coarse aperture section and a fine aperture section in the extending direction of the central shaft, and the outer diameter of the helical blade 33 is sequentially matched with the corresponding coarse aperture section and/or fine aperture section. In this embodiment, the diameter of the thick bore section increases gradually in the direction from the cylinder feed inlet to the discharge outlet, the diameter of the thin thick bore section increases gradually in the direction from the cylinder feed inlet to the discharge outlet, the thick bore section and the thin bore section are arranged at intervals and are arranged in a plurality of intervals, the height is 0.1-0.05mm, that is, the thick bore section and the thin bore section are arranged at intervals and are approximately considered to be an undifferentiated combination, the inner wall is smooth, but the inner diameter from top to bottom increases gradually, so that the aggregate of the iron wall can fall off, and the wall adhesion is prevented.

Barrel 1 and barrel cap 2 are connected through screw-thread fit, and when the user state, adjusting device 12 just pairs with pull throughs 34, push rod assembly 3 passes through circular port 11 and connects on barrel cap 2.

The feed hole 22 and the sliding plate 24 are fan-shaped and have the same size, the sliding plate 24 is positioned below the feed hole 22, the sliding plate 24 is provided with a small convex block which can pass through the adjusting hole 23, the small convex block is positioned at the fan-shaped end point of the sliding plate 24 positioned on one side of the side wall of the cylinder cap 2, the small convex block passes through the adjusting hole 23, and the purpose of controlling the opening and closing of the feed hole 22 is achieved by sliding the small convex block to control the movement of the sliding plate 24.

The quantity of through-hole 11, adjusting device 12 and pull throughs 34 is two, be the symmetry setting between two through-holes 11, adjusting device 12 and the pull throughs 34, can be better pull throughs when the aggregate jam etc. condition appears in barrel 1.

First body of rod 312 link up from top to bottom has the centre bore, also is hollow cylinder and does not have the bottom plate, second body of rod 322 is the cylinder, the external diameter of second body of rod 322 is the same with the internal diameter of first body of rod 312, when using, presses second body of rod 322 downwards, can make inside aggregate pass through hose 13 and press the aggregate to required position.

Helical blade 33 cooperation setting is between barrel 1 inner wall and first body of rod 312 outer wall, uses screw can make in the better entering section of thick bamboo of shredded aggregate, and seamless connection between helical blade 33 and barrel 1 inner wall and the first body of rod 312 outer arm can avoid shredded aggregate card in gap department.

First in command 311 includes left depression bar 3111 and right depression bar 3112, left depression bar 3111 and right depression bar 3112 symmetric connection are in the top both sides of first body of rod 312, and first in command 311 and second handle 321 all have the handle setting in body of rod both sides, more convenient operation thereby avoid one side difficult operation to lead to using the condition appearance that the degree of difficulty increases.

The hose is a metal hose or a plastic hose, namely the hose is made of metal and can be bent to change phase and be shaped, and the hose can also be made of plastic, so that when the bone grafting is at a position difficult to operate, the hose can be bent to convey aggregates in an appointed direction.

While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.

Claims

1. A novel bone grafting device, which comprises a cylinder body (1), a cylinder cap (2) and a push rod component (3); the method is characterized in that: the barrel body (1) is connected with the barrel cap (2) in a matching mode, the push rod assembly (3) is arranged in a matching mode with the barrel cap (2), the side wall of the barrel body (1) is provided with a through hole (11) and an adjusting device (12), the bottom end of the barrel body (1) is connected with a hose (13), the top surface of the barrel cap (2) is provided with a circular hole (21) and a feeding hole (22), the side wall of the barrel cap (2) is provided with an adjusting hole (23), the barrel cap (2) is internally provided with a sliding plate (24), the sliding plate (24) is arranged in a matching mode with the feeding hole (22) and the adjusting hole (23), the push rod assembly (3) comprises a first push rod (31), a second push rod (32), a spiral blade (33) and a dredging device (34), the first push rod (31) comprises a first handle (311) and a first rod body (312), the first handle (311) is connected to the top of the first rod body (312), the second push rod (32) comprises a second handle (321) and a second rod body (322), the second handle (321) is connected to the top of the second rod body (322), the spiral blade (33) and the dredging device (34) are connected to the side wall of the first rod body (312), the spiral blade (33) is located below the top surface of the cylinder cap (2), the dredging device (34) is located below the spiral blade (33), the second rod body (322) is sleeved in the first rod body (312), the adjusting device (12) is composed of an adjusting button (121) and a pressing spring (122), the adjusting button (121) is connected to the through hole (11) through the pressing spring (122), the dredging device (34) is composed of a dredging sheet (341), a dredging shaft (342) and a return spring, the dredging shaft (342) is arranged on a transverse symmetrical shaft of the dredging sheet (341), and the dredging shaft (342) is connected to the side wall of the first rod body (312) through the return spring in a matching manner, the adjusting button (121) is matched with the dredging shaft (342).

2. The novel bone grafting device according to claim 1, wherein: the barrel (1) is at least provided with a coarse aperture section and a fine aperture section in the extension direction of the central shaft, and the outer diameter of the helical blade (33) is sequentially matched with the corresponding coarse aperture section and/or fine aperture section.

3. A novel bone grafting device according to claim 2, characterized in that: the diameter of the thick aperture section is gradually increased in the direction from the feed inlet to the discharge outlet of the cylinder body (1), the diameter of the thin and thick aperture section is gradually increased in the direction from the feed inlet to the discharge outlet of the cylinder body (1), the thick aperture section and the thin aperture section are arranged at intervals and are multiple, and the height of the thick aperture section is 0.1-0.05 mm.

4. The novel bone grafting device according to claim 1, wherein: barrel (1) and barrel cap (2) pass through screw-thread fit and connect, push rod subassembly (3) are connected on barrel cap (2) through circular port (11).

5. The novel bone grafting device according to claim 1, wherein: the feed hole (22) and the sliding plate (24) are fan-shaped and have the same size, and small convex blocks are arranged on the sliding plate (24) and can pass through the adjusting holes (23).

6. The novel bone grafting device according to claim 1, wherein: the number of the through holes (11), the adjusting devices (12) and the dredging devices (34) is two, and the two through holes (11) are symmetrically arranged.

7. The novel bone grafting device according to claim 1, wherein: the first rod body (312) is vertically communicated, the second rod body (322) is a cylinder, and the outer diameter of the second rod body (322) is in interference fit with the inner diameter of the first rod body (312).

8. The novel bone grafting device according to claim 1, wherein: first handle (311) include left depression bar (3111) and right depression bar (3112), left depression bar (3111) and right depression bar (3112) symmetrical connection are in the top both sides of first body of rod (312).

9. The novel bone grafting device according to claim 1, wherein: the hose is a metal hose or a plastic hose.