CN217938350U

CN217938350U - Vertebroplasty surgical instrument

Info

Publication number: CN217938350U
Application number: CN202220215815.1U
Authority: CN
Inventors: 吴鹏
Original assignee: Changsha Mcneill Medical Instrument Ltd
Current assignee: Changsha Mcneill Medical Instrument Ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-12-02
Anticipated expiration: 2032-01-26

Abstract

The utility model discloses a vertebroplasty surgical instrument, including first bone cement syringe, bone cement filling device and second bone cement filler, first bone cement syringe includes the injection cylinder, injection cylinder internalization is provided with the piston, piston back horizontal installation has the piston rod, the piston rod end is located injection cylinder externally mounted and connects the handle, install syringe cover in the injection cylinder, it has injection cylinder threaded connection to penetrate syringe cover and injection cylinder threaded connection, the fingerboard is through being located the detachable installation of the thread connection groove that sets up on connecting the handle, the syringe needle is installed to injection cylinder front end, bone cement filling device includes the pressurization sleeve that bottom activity set up, bone cement filling device is located pressurization sleeve internally mounted and has the agitator, be provided with the connection base with injection cylinder adaptation on the agitator, install the locating part on the injection cylinder, vertical fixed mounting has the support slide bar on the piston rod, injection cylinder front end is connected with the connection end, install the sucking disc on the connection end.

Description

Vertebroplasty surgical instrument

Technical Field

The utility model relates to the technical field of medical treatment, in particular to a vertebroplasty surgical instrument.

Background

Vertebroplasty, known as percutaneous transluminal vertebroplasty (PVP), is a minimally invasive procedure in which bone cement (PMMA) or artificial bone is injected into a diseased vertebral body to strengthen the vertebral body.

The application of PVP to the treatment of osteoporotic vertebral fractures was first reported in 1984 and was invented and first applied by Deramond in 1984, and in 1987, the French physician Galibert was first applied to the treatment of vertebral hemangiomas, and in 1994, the U.S.

The injection dosage precision of the common vertebroplasty surgical instrument is not very accurate, and the bone cement is easily wasted. And in carrying out bone cement injection process, stability can direct influence the injection treatment effect, for make injection efficiency and stability obtain promoting, needs a more accurate, steady surgical instruments.

Based on this, the utility model designs a vertebroplasty surgical instrument to solve the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vertebroplasty surgical instrument to solve the general vertebroplasty surgical instrument's that provides among the above-mentioned background art injection dosage precision not very accurate, cause bone cement's waste easily. And in the bone cement injection process, the stability can directly influence the injection treatment effect, and in order to improve the injection efficiency and the stability, a more accurate and stable surgical instrument is needed.

In order to achieve the above object, the utility model provides a following technical scheme:

the vertebroplasty surgical instrument comprises a first bone cement injector, a bone cement filling device and a second bone cement filling device, wherein the first bone cement injector comprises an injection needle cylinder, a piston is movably arranged in the injection needle cylinder, a piston rod is horizontally arranged at the back of the piston, the end of the piston rod is positioned at the outer part of the injection needle cylinder and is provided with a connecting handle, an injection needle cylinder cover is arranged in the injection needle cylinder and is in threaded connection with the injection needle cylinder, a finger plate is arranged at the end of the injection needle cylinder and is detachably arranged through a threaded connecting groove arranged on the connecting handle, an injection needle head is arranged at the front end of the injection needle cylinder, the bone cement filling device comprises a pressurizing sleeve movably arranged at the bottom, a stirring barrel is arranged in the pressurizing sleeve, a mounting hole matched with the injection needle cylinder is formed in the bone cement filling device, a connecting base matched with the injection needle cylinder is arranged on the stirring barrel, a limiting part is arranged on the injection needle cylinder, a supporting sliding rod is vertically and fixedly arranged on the piston rod, the front end of the injection needle cylinder is connected with a first connecting end, and a sucking disc is arranged on the first connecting end.

As a further scheme of the utility model, the locating part includes the screw rod, integrated into one piece has the external screw thread on the screw rod, the screw rod screw thread is installed on the injection cylinder, the screw rod end is located injection cylinder internally mounted has spacing roof.

As a further proposal of the utility model, the injection needle cylinder is internally provided with a sliding groove matched with the supporting sliding rod on one side.

As a further proposal of the utility model, the first bone cement injector is connected with the second bone cement filler through the connecting pipe, the second bone cement filler afterbody install with the second connection end of connecting pipe adaptation, the syringe needle is installed to second bone cement filler front end.

As a further aspect of the present invention, the suction cup is installed on the first connection end through a threaded rod, the first connection end is detachably installed on both sides of the front end of the injection needle cylinder.

As a further proposal of the utility model, the inner ring of the bone cement filling device is fixedly provided with a stop dog which is closely attached to the outside of the injection needle cylinder.

As a further scheme of the utility model, syringe needle bobbin base portion is fixed with the installation base, connecting groove has been seted up on the installation base, on the connecting base integrated into one piece have with the connection fixture block of connecting groove adaptation, run through on the connection base seted up with the through-hole of agitator adaptation.

As a further proposal of the utility model, an extrusion containing groove matched with the pressurizing sleeve is arranged in the bone cement filling device.

As a further proposal of the utility model, the locating part and the connection part of the injection needle cylinder are provided with a sealing ring which is a medical rubber sealing ring.

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

the utility model discloses vertebroplasty surgical instrument, its structural design is ingenious, when bone cement syringe loads bone cement, can realize filling fast of high viscosity bone cement, has shortened patient's recovery cycle, makes the operation effect obtain very big improvement.

The utility model discloses be provided with locating part, support slide bar, connection end and sucking disc, the sucking disc is installed at injection cylinder front end through connecting the end, can fix on one's body the patient, fixes a position fixedly to the syringe needle for the injection position is more accurate, and the syringe is whole more steady. The limiting part can fix and limit the piston rod, and meanwhile, the limiting part is matched with the supporting slide rod below the piston rod, so that the piston rod is more stable and uniform in the motion process, and the safety is higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the entire structure of a vertebroplasty surgical instrument according to the utility model;

FIG. 2 is an enlarged, fragmentary, schematic view of a vertebroplasty surgical instrument according to the invention;

FIG. 3 is a schematic view of the first and second cement injectors of the vertebroplasty surgical device according to the present invention coupled together;

FIG. 4 is a schematic view of a bone cement filling apparatus of the vertebroplasty surgical instrument according to the present invention;

fig. 5 is a schematic view showing the connection of the injection cylinder and the bone cement filling device of the vertebroplasty surgical instrument according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a first bone cement injector; 101. an injection syringe; 102. an injection needle; 103. a piston; 104. a piston rod; 105. connecting a handle; 106. a syringe cap; 107. a fingerboard; 108. connecting grooves by screw threads; 2. A stopper; 201. a screw; 202. an external thread; 203. a limiting top plate; 204. a seal ring; 3. supporting the sliding rod; 4. a chute; 5. a first connection tip; 6. a suction cup; 7. a bone cement filling device; 701. mounting holes; 702. a stopper; 8. a pressurizing sleeve; 9. a stirring barrel; 10. a connecting base; 1001. connecting a clamping block; 1002. a through hole; 11. extruding the containing groove; 12. installing a base; 13. a connecting clamping groove; 14. a second bone cement injector; 15. connecting a conduit; 16. a second connection terminal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill 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 the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does 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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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.

As shown, the present invention provides a vertebroplasty surgical instrument, wherein,

fig. 1 is a schematic view of the entire structure of a vertebroplasty surgical instrument according to the present invention;

FIG. 5 is a schematic view of the syringe cylinder of the vertebroplasty surgical instrument according to the present invention being connected to a bone cement filling device;

as can be seen from the figure, in practical application, the vertebroplasty surgical instrument includes a first cement injector 1, a cement filling device 7, and a second cement filler 14, the first cement injector 1 includes an injection syringe 101, a piston 103 is movably disposed in the injection syringe 101, a piston rod 104 is horizontally mounted at the back of the piston 103, a connecting handle 105 is mounted at the end of the piston rod 104 located outside the injection syringe 101, an injection syringe cover 106 is mounted in the injection syringe 101, the injection syringe cover 106 is in threaded connection with the injection syringe 101, a finger plate 107 is mounted at the end of the injection syringe 101, the finger plate 107 is detachably mounted through a threaded connecting groove 108 disposed on the connecting handle 105, an injection needle 102 is mounted at the front end of the injection syringe 101, the cement filling device 7 includes a pressurizing sleeve 8 movably disposed at the bottom, a mixing barrel 9 is mounted inside the pressurizing sleeve 8 of the cement filling device 7, a mounting hole 701 adapted to the injection syringe 101 is formed in the cement filling device 7, a connecting base 10 adapted to the injection syringe 101 is mounted on the mixing barrel 8, a first connecting end of the injection syringe 2 is mounted on the injection syringe 9, and a first connecting end of the injection syringe 5 is connected to a suction cup 6. Wherein the first and second bone cement injectors 14 are of the same size.

The limiting part 2 comprises a screw 201, an external thread 202 is integrally formed on the screw 201, the screw 201 is installed on the injection needle cylinder 101 in a threaded manner, and a limiting top plate 203 is installed inside the injection needle cylinder 101 at the tail end of the screw 201. A sliding groove 4 matched with the supporting sliding rod 3 is formed in one side of the injection needle cylinder 101, which is positioned on the supporting sliding rod 3. The first bone cement injector 1 is connected with the second bone cement filler 14 through a connecting conduit 15, a second connecting end 16 matched with the connecting conduit 15 is installed at the tail part of the second bone cement filler 14, and an injection needle 102 is installed at the front end of the second bone cement filler 14.

The sucking disc 6 is installed on the first connecting end 5 through a threaded rod, and the first connecting end 5 is detachably installed on two sides of the front end of the injection needle cylinder 101. A stop block 702 tightly attached to the outside of the injection syringe 101 is annularly and fixedly installed in the bone cement filling device 7.

The bottom of the injection needle cylinder 101 is fixed with a mounting base 12, a connecting clamping groove 13 is formed in the mounting base 12, a connecting clamping block 1001 matched with the connecting clamping groove 13 is integrally formed in the connecting base 10, and a through hole 1002 matched with the stirring barrel 9 is formed in the connecting base 10 in a penetrating mode. The connection base 10 can be quickly connected with the syringe 101. And an extrusion containing groove 11 matched with the pressurizing sleeve 8 is formed in the bone cement filling device 7. A sealing ring 204 is arranged at the joint of the limiting part 2 and the injection syringe 101, and the sealing ring 204 is a medical rubber sealing ring.

The pressurizing sleeve 8 is extruded, the pressurizing sleeve 8 rises towards the extruding containing groove 11, and meanwhile, the stirring barrel 9 is driven to move and extrude, so that high-viscosity bone cement enters the injection needle cylinder 101 through the through hole 1001, the surrounding annular stop block 702 enables the injection needle cylinder 101 to be integrally stable, movement cannot be generated, and safety is improved.

The utility model discloses be provided with locating part, support slide bar, connection end and sucking disc, the sucking disc is installed at injection cylinder front end through connecting the end, can fix on one's body the patient, fixes a position fixedly to the syringe needle for the injection position is more accurate, and the syringe is whole more steady. The limiting part can fix and limit the piston rod and is matched with the supporting sliding rod below, so that the piston rod is more stable and uniform in the motion process, and the safety is higher.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Vertebroplasty surgical instrument, including first bone cement syringe (1), bone cement filling device (7) and second bone cement filler (14), its characterized in that, first bone cement syringe (1) is including injection cylinder (101), injection cylinder (101) internalization is provided with piston (103), piston (103) back horizontal installation has piston rod (104), piston rod (104) end is located injection cylinder (101) externally mounted has connection handle (105), install syringe cover (106) in injection cylinder (101), syringe cover (106) with injection cylinder (101) threaded connection, fingerboard (107) are installed to injection cylinder (101) end, fingerboard (107) are through being located the detachable installation of screw thread connection groove (108) that sets up on connection handle (105), injection needle (102) are installed to injection cylinder (101) front end, bone cement filling device (7) is including pressurization sleeve (8) of bottom movable setting, bone cement filling device (7) are located pressurization sleeve (8) internally mounted has stirring tank (9), bone cement filling device (7) go up has seted up stirring tank (701) and cement base (101) and cement base mounting hole (701), injection cylinder (101) and syringe (101) are provided with injection cylinder (101) mounting hole (701), injection cylinder (101) and injection cylinder (101) are provided with the base (10) adapter (701), and injection cylinder (7) mounting hole (10), and injection cylinder (101) are provided with 10 A limiting piece (2) is installed on the injection needle cylinder (101), a supporting slide rod (3) is vertically and fixedly installed on the piston rod (104), the front end of the injection needle cylinder (101) is connected with a first connecting end (5), and a sucker (6) is installed on the first connecting end (5).

2. Vertebroplasty surgical instrument according to claim 1, characterized in that said stop (2) comprises a threaded rod (201), said threaded rod (201) having an external thread (202) integrally formed thereon, said threaded rod (201) being threadedly mounted on said injection cylinder (101), said threaded rod (201) ending in a stop plate (203) mounted inside said injection cylinder (101).

3. Vertebroplasty surgical instrument according to claim 1, characterized in that inside said syringe (101) on one side of said supporting slide (3) there is a chute (4) adapted thereto.

4. Vertebroplasty surgical instrument according to claim 1, characterized in that said first bone cement injector (1) is connected to said second bone cement filler (14) by means of a connecting tube (15), said second bone cement filler (14) having at its rear end a second connecting tip (16) adapted to said connecting tube (15), said second bone cement filler (14) having at its front end an injection needle (102).

5. Vertebroplasty surgical instrument according to claim 1, characterized in that said suction cup (6) is mounted on said first connection end (5) by means of a threaded rod, said first connection end (5) being removably mounted on both sides of the front end of said syringe (101).

6. Vertebroplasty surgical instrument according to claim 1, characterized in that a stop (702) is fixedly mounted annularly in said bone cement filling device (7) against the outside of said syringe (101).

7. The vertebroplasty surgical instrument according to claim 1, wherein a mounting base (12) is fixed to the bottom of the syringe (101), the mounting base (12) is provided with a connecting slot (13), the connecting base (10) is integrally formed with a connecting block (1001) adapted to the connecting slot (13), and the connecting base (10) is provided with a through hole (1002) adapted to the mixing tank (9) in a penetrating manner.

8. Vertebroplasty surgical instrument according to claim 1, characterized in that a pressing pocket (11) adapted to the compression sleeve (8) is made in the bone cement filling device (7).

9. Vertebroplasty surgical instrument according to claim 1, characterized in that a sealing ring (204) is provided at the junction of the stop (2) and the syringe (101), said sealing ring (204) being a medical rubber sealing ring.