CN212816493U - Bone cement injection device - Google Patents
Bone cement injection device Download PDFInfo
- Publication number
- CN212816493U CN212816493U CN202020758859.XU CN202020758859U CN212816493U CN 212816493 U CN212816493 U CN 212816493U CN 202020758859 U CN202020758859 U CN 202020758859U CN 212816493 U CN212816493 U CN 212816493U
- Authority
- CN
- China
- Prior art keywords
- small
- injection
- push
- piston rod
- little
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Prostheses (AREA)
Abstract
The application relates to the technical field of medical equipment, and provides a bone cement injection device which comprises an injection tube and an injection port, wherein the interior of the injection tube is divided into a large push tube and a small push tube by a partition plate, and the large push tube and the small push tube are communicated with the tail end of the partition plate; the large pushing cylinder is internally provided with a large pushing injection assembly and a large limiting ring, the large pushing injection assembly comprises a large piston rod and a large piston, and the large piston is connected to the tail end of the large piston rod and is attached to the inner wall of the large pushing cylinder; be provided with in the little push away section of thick bamboo and inject subassembly and little spacing ring for a short time, the subassembly is injected including little piston rod and little piston for a short time, and little piston is connected in the end of little piston rod, and laminates with the inner wall of little push away section of thick bamboo. In the practical application process, when a large dose of bone cement needs to be injected, a large push cylinder is used for injecting the bone cement; when a small dose of bone cement needs to be injected, a small push cylinder is used for injection; when the quick injection is needed, the large push cylinder and the small push cylinder can be used for simultaneous injection, so that the problem that a plurality of injectors are needed in the process of the cone forming operation is solved.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to a bone cement injection device.
Background
Percutaneous puncture vertebroplasty and balloon dilatation vertebroplasty have the advantages of small wound, reliable pain relieving effect and the like, and are used as important treatment means for osteoporotic vertebral compression fracture and spinal metastases. In the above operations, a bone cement injector is used to inject bone cement into a desired treatment site of a patient.
In order to ensure accurate injection, a large dose of injection is needed at the beginning stage of injection, a large-caliber injector is used, a small dose of slow injection is needed during the injection process, and injectors with different small calibers are selected for injection until the injection is finished. Because the required bone cement injectors are more, the bone cement injectors need to be replaced for many times, but the replacement of the bone cement injectors for many times can prolong the operation time and increase the operation difficulty.
SUMMERY OF THE UTILITY MODEL
The application provides a bone cement injection device to solve the more problem of required bone cement syringe in the operation process of the cone takes shape.
The application provides a bone cement injection device, which comprises an injection tube and an injection port, wherein the injection port is arranged at the tail end of the injection tube and is communicated with the injection tube;
the large pushing cylinder is internally provided with a large pushing injection assembly and a large limiting ring, the large pushing injection assembly comprises a large piston rod and a large piston, the large piston is connected to the tail end of the large piston rod and is attached to the inner wall of the large pushing cylinder, and the large piston rod can move in the large limiting ring;
the small push cylinder is provided with a small push injection assembly and a small limiting ring, the small push injection assembly comprises a small piston rod and a small piston, the small piston is connected to the tail end of the small piston rod and attached to the inner wall of the small push cylinder, and the small piston rod can move in the small limiting ring.
Optionally, the outer wall of the large piston rod is provided with a large external thread, and the large limiting ring is a first nut matched with the large external thread; the outer wall of the small piston rod is provided with a small external thread, and the small limiting ring is a second nut matched with the small external thread.
Optionally, a large vent hole is formed in the top end of the large push cylinder; and a small vent hole is formed in the top end of the small push cylinder.
Optionally, the outer wall of the syringe is provided with a first scale mark and a second scale mark, the first scale mark is close to one side of the large push cylinder, and the second scale mark is close to one side of the small push cylinder.
Optionally, a handle is also included.
In the bone cement injection process, when a large dose of bone cement needs to be injected, the large piston rod is used for pushing the large piston, and the bone cement in the large push cylinder is injected to a required treatment part; when a small dose of bone cement needs to be injected, the small push cylinder is directly used for injection; when the quick injection is needed, the large push cylinder and the small push cylinder can be used for simultaneous injection, so that the problem that a plurality of injectors are needed in the process of the cone forming operation is solved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective view of a bone cement injection device provided in an embodiment of the present application;
FIG. 2 is a perspective view of a large push cylinder provided in an embodiment of the present application;
fig. 3 is a perspective view of a structure of a small push cylinder provided in an embodiment of the present application.
Illustration of the drawings:
the injection device comprises a syringe 1, a large push cylinder 11, a large limit ring 111, a large vent hole 112, a small push cylinder 12, a small limit ring 121, a small vent hole 122, a first scale mark 13, a second scale mark 14, an injection port 2, a partition plate 3, a large push injection assembly 4, a large piston rod 41, a large piston 42, a small push injection assembly 5, a small piston rod 51, a small piston 52 and a handle 6.
Detailed Description
Referring to fig. 1, a perspective view of a bone cement injection device provided in an embodiment of the present application is shown.
Referring to fig. 2, a perspective view of a structure of a large push cylinder provided in an embodiment of the present application is shown.
Referring to fig. 3, a perspective view of a structure of a small push cylinder provided in an embodiment of the present application is shown.
In order to solve the problem that a plurality of bone cement injectors are needed in the process of a taper forming operation, as shown in fig. 1, 2 and 3, the present application provides a bone cement injection device, which includes a syringe 1 and an injection port 2, in the present application, the injection port 2 is at the end of the syringe 1 and is communicated with the syringe 1, if not specifically stated, the end of the present application is the end of the bone cement injection device close to a patient during an operation; the interior of the injection tube 1 is divided into a large push tube 11 and a small push tube 12 by a clapboard 3, the large push tube 11 and the small push tube 12 are communicated at the tail end of the clapboard 3, and bone cement can be sucked or injected into the large push tube 11 and the small push tube 12 through the injection port 2.
In the embodiment of the present application, the large push cylinder 11 is provided with a large push injection assembly 4, the large push injection assembly 4 includes a large piston rod 41 and a large piston 42, and the large piston 42 is connected to the end of the large piston rod 41. The operator can inject the large piston rod 41 to inject bone cement, and the large piston 42 is attached to the inner wall of the large push cylinder 11, so that a closed space is ensured in the large push cylinder, and the bone cement cannot penetrate into the large push injection assembly 4.
Because the diameter of the large piston rod 41 is smaller than that of the large push cylinder 11, that is, the large piston rod 41 does not contact the large push cylinder 11, the large piston rod 41 will shake when moving up and down in the large push cylinder 11, which affects the injection. The large push cylinder 11 is provided with a large limiting ring 111, and the large piston rod 41 can keep moving vertically in the large limiting ring 111, so that the large push cylinder 11 can inject and suck bone cement conveniently.
In the embodiment of the present application, a small pushing cylinder 12 is provided with a small pushing assembly 5, the small pushing assembly 5 includes a small piston rod 51 and a small piston 52, and the small piston 52 is connected to the end of the small piston rod 51. The operator can inject the small piston rod 51 to inject bone cement, and the small piston 52 is attached to the inner wall of the small push cylinder 12, so that a closed space is ensured in the small push cylinder 12, and the bone cement cannot penetrate into the small injection component 5.
Because the diameter of the small piston rod 51 is smaller than the diameter of the small push cylinder 12, that is, the small piston rod 51 does not contact the small push cylinder 12, the small piston rod 51 will shake when moving up and down in the small push cylinder 12, which affects the injection. The small push cylinder 12 is provided with the small limit ring 121, and the small piston rod 51 can keep moving vertically in the small limit ring 121, so that the small push cylinder 12 can inject and suck bone cement conveniently.
The bone cement injection device provided by the application comprises an injection tube 1 and an injection port 2, wherein the injection port 2 is arranged at the tail end of the injection tube 1 and is communicated with the injection tube 1, the interior of the injection tube 1 is divided into a large push tube 11 and a small push tube 12 through a partition plate 3, and the large push tube 11 and the small push tube 12 are communicated at the tail end of the partition plate 3; the large push cylinder 11 is internally provided with a large push-injection assembly 4 and a large limit ring 111, the large push-injection assembly 4 comprises a large piston rod 41 and a large piston 42, the large piston 42 is connected to the tail end of the large piston rod 41 and is attached to the inner wall of the large push cylinder 11, and the large piston rod 41 can move in the large limit ring 111; the small push cylinder 12 is provided with a small push injection component 5 and a small limit ring 121, the small push injection component 5 comprises a small piston rod 51 and a small piston 52, the small piston 52 is connected to the tail end of the small piston rod 51 and attached to the inner wall of the small push cylinder 12, and the small piston rod 51 can move in the small limit ring 121.
In the bone cement injection process, when a large dose of bone cement is required to be injected, the large piston rod 41 is used for pushing the large piston 42, and the bone cement in the large push cylinder 11 is injected to a required treatment site; when a small dose of bone cement needs to be injected, the small push cylinder 12 is directly used for injection; when the injection is needed rapidly, the large push cylinder 11 and the small push cylinder 12 can be used for simultaneous injection, thereby solving the problem that a plurality of injectors are needed in the process of the cone forming operation.
When the large push cylinder 11 or the small push cylinder 12 is used for injection, since human tissue generates pressure to hinder the injection of bone cement, so that the bone cement in another injection cylinder flows back, the corresponding piston rod moves in the direction opposite to the injection direction, and the bone cement is not easy to push out, a large external thread is arranged on the outer wall of the large piston rod 41, a small external thread is arranged on the outer wall of the small piston rod 51, the large limit ring 111 is arranged as a first nut matched with the large external thread, and the small limit ring 121 is arranged as a second nut matched with the small external thread. When injecting, the first nut and the second nut are matched by screw thread to fix the piston rod, which is the general term for the large piston rod 41 and the small piston rod 51. When bone cement is extracted, the piston rod is rotated, and when bone cement is injected, the piston rod is rotated reversely, so that the push-pull process of the piston rod can be completed.
For the convenience of the suction and injection process, the top end of the large pushing cylinder 11 is provided with a large vent 112, and similarly, the top end of the small pushing cylinder 12 is provided with a small vent 122.
In order to better perform accurate injection, a first scale mark 13 and a second scale mark 14 are arranged on the outer wall of the syringe 1, the first scale mark 13 is close to one side of the large push cylinder 11, and the second scale mark 14 is close to one side of the small push cylinder 12.
In order to make the operator perform more stable operation during suction or process, a handle 6 is provided on the outer wall of the syringe barrel 1.
According to the scheme, the bone cement injection device comprises an injection tube 1 and an injection port 2, wherein the injection port 2 is arranged at the tail end of the injection tube 1 and is communicated with the injection tube 1, the interior of the injection tube 1 is divided into a large push tube 11 and a small push tube 12 through a partition plate 3, and the large push tube 11 and the small push tube 12 are communicated at the tail end of the partition plate 3; the large push cylinder 11 is internally provided with a large push injection component 4 and a large limit ring 111, and the small push cylinder 12 is internally provided with a small push injection component 5 and a small limit ring 121; the large pushing and injecting assembly 4 comprises a large piston rod 41 and a large piston 42, the large piston 42 is connected to the end of the large piston rod 41 and attached to the inner wall of the large pushing cylinder 11, and the large piston rod 41 moves in the large limiting ring 111; the small pushing and injecting assembly 5 comprises a small piston rod 51 and a small piston 52, the small piston 52 is connected to the tail end of the small piston rod 51, the small piston 52 is attached to the inner wall of the small pushing cylinder 12, and the small piston rod 51 moves in the small limiting ring 121.
In practical application, when a large amount of bone cement is required to be injected, the large piston rod 41 is used for pushing the large piston 42, and the bone cement in the large push cylinder 11 is injected to a required treatment site; when a small dose of bone cement needs to be injected, the small push cylinder 12 is directly used for injection; when the injection is needed rapidly, the large push cylinder 11 and the small push cylinder 12 can be used for simultaneous injection, thereby solving the problem that a plurality of injectors are needed in the process of the cone forming operation.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (5)
1. The bone cement injection device is characterized by comprising an injection tube (1) and an injection port (2), wherein the injection port (2) is arranged at the tail end of the injection tube (1) and communicated with the injection tube (1), the interior of the injection tube (1) is divided into a large push tube (11) and a small push tube (12) through a partition plate (3), and the large push tube (11) and the small push tube (12) are communicated at the tail end of the partition plate (3);
the large push cylinder (11) is internally provided with a large push injection assembly (4) and a large limit ring (111), the large push injection assembly (4) comprises a large piston rod (41) and a large piston (42), the large piston (42) is connected to the tail end of the large piston rod (41) and is attached to the inner wall of the large push cylinder (11), and the large piston rod (41) can move in the large limit ring (111);
be provided with in little push away section of thick bamboo (12) and inject subassembly (5) and little spacing ring (121) for a short time, it includes little piston rod (51) and little piston (52) to inject subassembly (5) for a short time, little piston (52) connect in the end of little piston rod (51), and with the inner wall laminating of little push away section of thick bamboo (12), little piston rod (51) can remove in little spacing ring (121).
2. Bone cement injection device according to claim 1, characterized in that the outer wall of the large piston rod (41) is provided with a large external thread, and the large stop collar (111) is provided as a first nut cooperating with the large external thread; the outer wall of the small piston rod (51) is provided with a small external thread, and the small limiting ring (121) is arranged to be a second nut matched with the small external thread.
3. Bone cement injection device according to claim 1, characterized in that the top end of the large push cylinder (11) is provided with a large vent hole (112); the top end of the small push cylinder (12) is provided with a small vent hole (122).
4. The cement injection device according to claim 1, wherein the outer wall of the syringe (1) is provided with a first graduation mark (13) and a second graduation mark (14), the first graduation mark (13) is close to one side of the large push cylinder (11), and the second graduation mark (14) is close to one side of the small push cylinder (12).
5. Bone cement injection device according to claim 1, characterized in that it further comprises a handle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020758859.XU CN212816493U (en) | 2020-05-09 | 2020-05-09 | Bone cement injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020758859.XU CN212816493U (en) | 2020-05-09 | 2020-05-09 | Bone cement injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212816493U true CN212816493U (en) | 2021-03-30 |
Family
ID=75159850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020758859.XU Active CN212816493U (en) | 2020-05-09 | 2020-05-09 | Bone cement injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212816493U (en) |
-
2020
- 2020-05-09 CN CN202020758859.XU patent/CN212816493U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2168619A3 (en) | Device for interfacing with standard luer lock syringes | |
| US20080119797A1 (en) | System with a syringe device and a needle device | |
| US20170296247A1 (en) | Bone cement injection device | |
| CN203634582U (en) | Composite syringe capable of being pressurized in rotating mode or pushed through piston | |
| CN212816493U (en) | Bone cement injection device | |
| CN201624757U (en) | Vertebral body kyphoplasty surgical instrument | |
| CN204543140U (en) | double syringe | |
| CN207855759U (en) | A kind of practicality Cardiological sting device | |
| CN206103065U (en) | Accurate syringe | |
| CN213723876U (en) | Novel syringe for negative pressure suction | |
| CN107982586B (en) | Self-locking type negative pressure suction syringe | |
| CN210992288U (en) | Double-control injector | |
| CN204543133U (en) | Automatic vent syringe | |
| CN107261260A (en) | Double storehouse injection tools | |
| CN203017059U (en) | Bone cement injector | |
| CN108721730B (en) | Injector for viscous medicinal liquids | |
| CN210145216U (en) | Syringe for viscous liquid medicine | |
| CN209107513U (en) | A kind of cardiothoracic surgery sting device | |
| CN208031264U (en) | A kind of medical bone puncture needle | |
| CN205339825U (en) | Bone injection gun | |
| CN110680998A (en) | Adjustable injector | |
| CN203328780U (en) | Direction-controllable large capacity bone cement injector | |
| CN205391176U (en) | Bone cement infusion device | |
| CN217310400U (en) | Push-jet device for facial fat filling operation | |
| CN213606819U (en) | Spiral bone cement injector suitable for conventional syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |