CN207970137U - Bone cement injected system - Google Patents
Bone cement injected system Download PDFInfo
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- CN207970137U CN207970137U CN201721049819.2U CN201721049819U CN207970137U CN 207970137 U CN207970137 U CN 207970137U CN 201721049819 U CN201721049819 U CN 201721049819U CN 207970137 U CN207970137 U CN 207970137U
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- bone cement
- screw
- wall
- injected system
- helicitic texture
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Abstract
The embodiment of the present application discloses bone cement injected system.One specific implementation mode of the bone cement injected system includes：Multiple hollow Pediculus arcus vertebrae screws, hollow Pediculus arcus vertebrae screw are used to bone cement injecting centrum, and the outer wall of hollow Pediculus arcus vertebrae screw is provided with multiple trepannings being connected to the inner wall of hollow Pediculus arcus vertebrae screw, and trepanning is arranged as by spiral way along the axisymmetric two rows of the body of screw；Connector, the connector include main pipe and it is multiple have sub- conduit flexible, the first end of the main pipe is connected to the sealing of the first end of multiple sub- conduits respectively, the second end of the main pipe is provided with input interface, the second end of sub- conduit is provided with output interface, and output interface is tightly connected with the hollow Pediculus arcus vertebrae screw；Bone cement infusing device, for injecting bone cement to the connector by the input interface.This embodiment, reduces the times of injection bone cement.
Description
Technical field
This application involves the field of medical instrument technology more particularly to bone cement injected systems.
Background technology
With increasingly sharpening for China human mortality aging, more and more sufferers of osteoporosis face need to carry out because of spinal disease
Internal fixation operation.For example, it is usually necessary to use pedicle screws for old backbone degenerative scoliosis and osteoporosis compression fracture
Carry out internal fixation operation.And osteoporosis patient it is postoperative tend to occur screw loosening, extract, fixed lost so as to cause interior
It loses.And after bone cement screw is implanted into pedicle of vertebral arch, bone cement is injected into centrum by bone cement screw, can be reached to bone water
The fixed of mud snail nail is strengthened.
It is existing that by bone cement, to the reinforcing of bone cement screw, also some are insufficient.For example, being needed for multiple centrums
When cement augmentation, existing method can only inject bone cement to each bone cement screw respectively, be easy to cause each injection in this way
Pressure when bone cement is different, the phenomenon that bone cement leakage occurs, while can not also be realized between the different centrum of porousness
The reasonable layout of bone cement；Due at the same time to multiple bone cement screws inject bone cement when it is cumbersome, spend the time it is longer,
It tends not to complete injection in bone cement firm time；Existing bone cement screw is usually by axisymmetric along bone cement screw
Two rows of straight trepannings, such structure make the injection direction of bone cement too strong, and container causes bone cement injection uneven
It is even.
Utility model content
The purpose of the embodiment of the present application is to propose bone cement injected system, be mentioned to solve background section above
The technical issues of.
The embodiment of the present application provides a kind of bone cement injected system, and the bone cement injected system includes：It is multiple hollow
Pedicle screw, hollow Pediculus arcus vertebrae screw are used to bone cement injecting centrum, and the outer wall of hollow Pediculus arcus vertebrae screw is provided with multiple
The trepanning being connected to the inner wall of hollow Pediculus arcus vertebrae screw, trepanning are arranged as by spiral way along the axisymmetric two rows of the body of screw；Even
Connect device, the connector include main pipe and it is multiple there is sub- conduit flexible, the first end of the main pipe respectively with it is multiple
The first end sealing connection of sub- conduit, the second end of the main pipe are provided with input interface, and the second end of sub- conduit is provided with
Output interface, output interface are tightly connected with the hollow Pediculus arcus vertebrae screw；Bone cement infusing device, for passing through the input
Interface injects bone cement to the connector.
In some embodiments, the hollow Pediculus arcus vertebrae screw includes：The inner wall of screw cap, the screw cap has the first spiral shell
Line structure；The body of screw is fixedly connected with the screw cap, and the outer wall of the body of screw is provided with and the fixed screw thread of centrum.
In some embodiments, the aperture of the trepanning far from screw cap is more than the aperture of the trepanning close to screw cap.
In some embodiments, the outer wall of output interface is provided with the helicitic texture being correspondingly arranged with the first helicitic texture.
In some embodiments, the inner wall of the input interface is provided with the second helicitic texture.
In some embodiments, the bone cement infusing device includes：Bone cement accommodation tube, for holding bone cement；Rotation
Turn propulsion device, for squeezing the bone cement in the bone cement accommodation tube；Outlet, is connected to the bone cement accommodation tube, uses
In to connector inject bone cement.
In some embodiments, the outer wall of the outlet is provided with the helicitic texture being correspondingly arranged with the second helicitic texture.
In some embodiments, the bone cement accommodation tube inner wall is provided with third helicitic texture.
In some embodiments, the rotary propelling device outer wall has the screw thread being correspondingly arranged with the third helicitic texture
Structure.
The outer wall of bone cement injected system provided by the embodiments of the present application, hollow Pediculus arcus vertebrae screw is provided with multiple and screw
The trepanning of the inner wall connection of body, trepanning are arranged as by spiral way along the axisymmetric two rows of the body of screw so that bone cement can be equal
It is injected into centrum evenly；Can bone water be injected into multiple centrums by multiple hollow Pediculus arcus vertebrae screws simultaneously by connector
Mud realizes isobaric injection bone cement, reduces the risk of bone cement leakage, reduces the time of injection bone cement, while by
In hydromechanical principle, loose centrum internal resistance is smaller, and more bone cement notes will be obtained when equipressure is injected
Enter, and the relatively compact centrum of sclerotin will inject less amount of bone cement, therefore bone cement amount can be made not by the device
With obtaining more reasonably distributing between centrum.
Description of the drawings
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is a structural schematic diagram according to the bone cement injected system of the application；
Fig. 2 is a structural schematic diagram according to the hollow Pediculus arcus vertebrae screw of the application；
Fig. 3 is a sectional view according to the hollow Pediculus arcus vertebrae screw of the application；
Fig. 4 is a structural schematic diagram according to the connector of the application；
Fig. 5 is a sectional view according to the main pipe of the application；
Fig. 6 is a structural schematic diagram according to the bone cement infusing device of the application；
Fig. 7 is a sectional view according to the bone cement infusing device of the application.
Specific implementation mode
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.It further needs exist for illustrating
, illustrate only for ease of description, in attached drawing and the relevant part of related utility model.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 is a structural schematic diagram of the bone cement injected system that application provides.As shown in Figure 1, the bone water of the application
Mud injected system includes multiple hollow Pediculus arcus vertebrae screws 101, connector 102 and bone cement infusing device 103.Wherein, hollow vertebra
Pedicle screw 101 is used to bone cement injecting centrum, and the outer wall of hollow Pediculus arcus vertebrae screw 101 is provided with multiple and hollow pedicle
The trepanning of the inner wall connection of screw 101, trepanning are arranged as by spiral way along the axisymmetric two rows of the body of screw；Connector 102 wraps
Include main pipe 1021 and it is multiple there is sub- conduit 1022 flexible, the first end of the main pipe 1021 respectively with multiple sub- conduits
1022 first end sealing connection, the second end of the main pipe 1021 are provided with input interface, the second end of sub- conduit 1022
It is provided with output interface, output interface is tightly connected with hollow Pediculus arcus vertebrae screw 101；Bone cement infusing device 103, for passing through
The input interface injects bone cement to the connector, and hollow Pediculus arcus vertebrae screw 101, connector 102 and bone cement inject dress
The annexation figure set between 103 is as shown in Figure 1.
Bone cement is housed, by the outlet of bone cement infusing device 103 and connector 102 in bone cement infusing device 103
The input interface of 1021 second end of main pipe is tightly connected, and main pipe 1021 is tightly connected with multiple sub- conduits 1022 again；It will be empty
After heart pedicle screw 101 is fixed on centrum above, sub- conduit 1022 and hollow Pediculus arcus vertebrae screw 101 are tightly connected；Later, it revolves
Turn to promote bone cement infusing device 103 so that bone cement enters connector 102；Bone cement equipressure is pushed into more by connector 102 again
A sub- conduit 1022, and the hollow Pediculus arcus vertebrae screw 101 through being connect with sub- conduit 1022 enters centrum.In this way, realizing equipressure
Bone cement is injected, the risk of bone cement leakage is reduced, realizes the reasonable distribution of bone cement between different centrums；Connector 102
Multiple sub- conduits 1022 can be connected simultaneously, reduce the time of injection bone cement.Meanwhile on hollow Pediculus arcus vertebrae screw 101
Trepanning is arranged as by spiral way along the axisymmetric two rows of the body of screw so that bone cement injects in centrum along multiple directions, makes
It obtains bone cement to be uniformly injected into around hollow Pediculus arcus vertebrae screw 101, the pressure inside centrum can be balanced and makes hollow vertebra
Pedicle screw 101 is completely immersed in bone cement, increases the fastness of hollow Pediculus arcus vertebrae screw 101.
In some optional realization methods of the present embodiment, as shown in Fig. 2, the hollow Pediculus arcus vertebrae screw 101 includes：
Screw cap 1012 and the body of screw 1013.Wherein, the inner wall of screw cap 1012 has the first helicitic texture；The body of screw 1013 and screw cap
1012 are fixedly connected, and the outer wall of the body of screw 1013 is provided with and the fixed screw thread of centrum.
The sectional view of hollow Pediculus arcus vertebrae screw 101 is as shown in Figure 3.From the figure 3, it may be seen that screw cap 1012 and the body of screw 1013
Inside is hollow, is useful at screw cap 1012 and 1022 fixed first helicitic texture of sub- conduit.Screw cap 1012 is U
Type, to connect multiple hollow Pediculus arcus vertebrae screws 101 subsequently through stick.
The body of screw 1013 is fixedly connected with screw cap 1012, and the body of screw 1013 is fixed in pedicle of vertebral arch.Screw cap 1012
Inner wall has the first helicitic texture, which is used to be tightly connected with the sub- conduit 1022 of connector 102, so that son is led
The bone cement that pipe 1022 exports enters hollow Pediculus arcus vertebrae screw 101.In order to which hollow Pediculus arcus vertebrae screw 101 is fixed on centrum,
Need the body of screw 1013 outer wall setting for the fixed screw thread of centrum, with reinforce the body of screw 1013 centrum stabilization
Property.
In some optional realization methods of the present embodiment, as shown in Fig. 2, the aperture of the trepanning far from screw cap 1012
More than the aperture of the trepanning close to screw cap 1012.
In order to be rapidly injected bone cement in centrum, two rows can be set on the body of screw 1013 along 1013 axis pair of the body of screw
The trepanning answered.Different in Intrapyramidal depth after the body of screw 1013 is fixed on centrum, different depth may cause to inject
Pressure when bone cement is different, for this purpose, the ratio of the aperture setting of the trepanning of screw cap 1012 can be will be far from close to screw cap
The aperture of 1012 trepanning is larger, can inject bone cement by the trepanning of large aperture in this way and in the trepanning of large aperture
Place's pressure is when changing, and passes through the tappings of other trepanning reduction large apertures for be in the small-bore of different depth in centrum
Pressure so that centrum is balanced in the pressure of each depth, also increases hollow Pediculus arcus vertebrae screw 101 in Intrapyramidal stability.
In some optional realization methods of the present embodiment, as shown in figure 4, the outer wall of the output interface of sub- conduit 1022
It is provided with the helicitic texture being correspondingly arranged with the first helicitic texture.
In order to be fixed with the screw cap 1012 of hollow Pediculus arcus vertebrae screw 101, the outer wall of the output interface of sub- conduit 1022 is set
It is equipped with the helicitic texture being correspondingly arranged with the first helicitic texture.Meanwhile in order to increase sealing effect, sub- conduit 1022 further includes
One pressurizing unit 10221 and the first sealing ring 10222.Helicitic texture at the output interface of group conduit 1022 and screw cap
After 1012 inner wall has the cooperation of the first helicitic texture to screw, in order to accomplish further sealing effect, it can also be squeezed by first
Pressure device 10221 pushes the first sealing ring 10222, further increases the first sealing ring of output interface and screw cap 1012
Leakproofness between 10222.First pressurizing unit 10221 can be moved by way of rotation on sub- conduit 1022, so as to
Push the first sealing ring 10222.Fig. 4 is the schematic diagram that connector 102 includes 3 root conduits 1022, in practice, sub- conduit 1022
Quantity can increase or decrease according to actual needs.
In some optional realization methods of the present embodiment, as shown in figure 5, the inner wall of the input interface of main pipe 1021
It is provided with the second helicitic texture.
The needs of main pipe 1021 are fixedly connected with bone cement infusing device 103, for this purpose, can be in the input of main pipe 1021
The inner wall of interface is provided with the second helicitic texture, and the second helicitic texture is improved for being fixed with bone cement infusing device 103
The stability when input interface of main pipe 1021 is connect with bone cement infusing device 103 and leakproofness.
In some optional realization methods of the present embodiment, as shown in fig. 6, bone cement infusing device 103 may include：
Bone cement accommodation tube 1031, rotary propelling device 1032 and outlet 1033.Wherein, bone cement accommodation tube 1031 is for holding stirring
Good bone cement；Rotary propelling device 1032 is used to squeeze the bone cement in the bone cement accommodation tube；Outlet 1033 with it is described
Bone cement accommodation tube is connected to, for injecting bone cement to connector.
In use, being connected as illustrated after corresponding centrum pedicle of vertebral arch is implanted into the hollow Pediculus arcus vertebrae screw 101 first
Main pipe 1021 and sub- conduit 1022, the bone cement being stirred then is put into bone cement accommodation tube 1031, bone cement is held
Cylinder 1031 of receiving is connect with main pipe 1021, then by rotary propelling device 1032 squeeze bone cement, bone cement from outlet 1033
It is extruded and enters connector 102.The capacity of bone cement accommodation tube 1031 is larger, may be implemented simultaneously to multiple hollow pedicle spiral shells
Nail 101 carries out the injection of bone cement；Rotary propelling device 1032 can control the injection rate and injection pressure of bone cement, ensure every
A hollow Pediculus arcus vertebrae screw 101 can isobaric injection bone cement；The relative aperture bone cement accommodation tube 1031 of outlet 1033 is much smaller,
The amount of the bone cement into hollow Pediculus arcus vertebrae screw 101 can relatively accurately be controlled.
In some optional realization methods of the present embodiment, as shown in fig. 6, the outer wall of outlet 1033 is provided with and second
The helicitic texture that helicitic texture is correspondingly arranged.
Helicitic texture on the outer wall of outlet 1033 can match with the second helicitic texture of the input interface of main pipe 1021
It closes, realizes that the sealing of the input interface of outlet 1033 and main pipe 1021 is fixed.Meanwhile outlet 1033 can also include second crowded
Pressure device 10331 and the second sealing ring 10332.When the helicitic texture of outlet 1033 and the second helicitic texture of input interface coordinate
After screwing, in order to accomplish further sealing effect, the second sealing ring can also be pushed by the second pressurizing unit 10331
10332, further increase the leakproofness between the input interface of main pipe 1021 and the second sealing ring 10332.
In some optional realization methods of the present embodiment, as shown in fig. 7,1031 inner wall of bone cement accommodation tube is provided with
Third helicitic texture.
After bone cement is put into bone cement accommodation tube 1031, rotary propelling device 1032 can be in several ways to bone water
Mud is squeezed.Optionally, can 1031 inner wall of bone cement accommodation tube be provided with third helicitic texture, while is promoted in rotation
1032 outer wall of device has the helicitic texture being correspondingly arranged with the third helicitic texture, in this way, by controlling rotary propelling device
The control to the injection rate and injection pressure of bone cement is realized in 1032 position in bone cement accommodation tube 1031.
The outer wall of bone cement injected system provided by the embodiments of the present application, hollow Pediculus arcus vertebrae screw is provided with multiple and screw
The trepanning of the inner wall connection of body, trepanning are arranged as by spiral way along the axisymmetric two rows of the body of screw so that bone cement can be equal
It is injected into centrum evenly；Can bone cement be injected to centrum by multiple hollow Pediculus arcus vertebrae screws simultaneously by connector, it is real
Isobaric injection bone cement is showed, simultaneously because hydromechanical principle, loose centrum internal resistance is smaller, is injected in equipressure
When will obtain the injection of more bone cements, and the relatively compact centrum of sclerotin will inject less amount of bone cement, therefore pass through
The device can make bone cement amount obtain more reasonably distributing between different centrums, reduce the risk of bone cement leakage, subtract
The time of injection bone cement is lacked.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that utility model range involved in the application, however it is not limited to made of the specific combination of above-mentioned technical characteristic
Technical solution, while should also cover in the case where not departing from the design of above-mentioned utility model, by above-mentioned technical characteristic or its be equal
Feature carries out other technical solutions of arbitrary combination and formation.Such as features described above has with (but not limited to) disclosed herein
The technical solution for thering is the technical characteristic of similar functions to be replaced mutually and being formed.
Claims (9)
1. a kind of bone cement injected system, which is characterized in that the bone cement injected system includes：
Multiple hollow Pediculus arcus vertebrae screws, hollow Pediculus arcus vertebrae screw are used to bone cement injecting centrum, hollow Pediculus arcus vertebrae screw it is outer
Wall is provided with multiple trepannings being connected to the inner wall of hollow Pediculus arcus vertebrae screw, and trepanning is arranged as by spiral way along body of screw axis pair
The two rows of title；
Connector, the connector include main pipe and multiple there is sub- conduit flexible, the first end of the main pipe to distinguish
It is connected to the sealing of the first end of multiple sub- conduits, the second end of the main pipe is provided with input interface, the second end of sub- conduit
It is provided with output interface, output interface is tightly connected with the hollow Pediculus arcus vertebrae screw；
Bone cement infusing device, for injecting bone cement to the connector by the input interface.
2. bone cement injected system according to claim 1, which is characterized in that the hollow Pediculus arcus vertebrae screw includes：
The inner wall of screw cap, the screw cap has the first helicitic texture；
The body of screw is fixedly connected with the screw cap, and the outer wall of the body of screw is provided with and the fixed screw thread of centrum.
3. bone cement injected system according to claim 2, which is characterized in that the aperture of the trepanning far from screw cap is more than
Close to the aperture of the trepanning of screw cap.
4. bone cement injected system according to claim 2, which is characterized in that the outer wall of output interface is provided with and first
The helicitic texture that helicitic texture is correspondingly arranged.
5. bone cement injected system according to claim 1, which is characterized in that the inner wall of the input interface is provided with
Two helicitic textures.
6. bone cement injected system according to claim 5, which is characterized in that the bone cement infusing device includes：
Bone cement accommodation tube, for holding bone cement；
Rotary propelling device, for squeezing the bone cement in the bone cement accommodation tube；
Outlet, is connected to the bone cement accommodation tube, for injecting bone cement to connector.
7. bone cement injected system according to claim 6, which is characterized in that the outer wall of the outlet is provided with and second
The helicitic texture that helicitic texture is correspondingly arranged.
8. bone cement injected system according to claim 6, which is characterized in that the bone cement accommodation tube inner wall is provided with
Third helicitic texture.
9. bone cement injected system according to claim 8, which is characterized in that the rotary propelling device outer wall has and institute
State the helicitic texture that third helicitic texture is correspondingly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721049819.2U CN207970137U (en) | 2017-08-22 | 2017-08-22 | Bone cement injected system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721049819.2U CN207970137U (en) | 2017-08-22 | 2017-08-22 | Bone cement injected system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207970137U true CN207970137U (en) | 2018-10-16 |
Family
ID=63770691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721049819.2U Expired - Fee Related CN207970137U (en) | 2017-08-22 | 2017-08-22 | Bone cement injected system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207970137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114642492A (en) * | 2022-03-16 | 2022-06-21 | 燕山大学 | Bone cement remote injection device for vertebroplasty |
-
2017
- 2017-08-22 CN CN201721049819.2U patent/CN207970137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114642492A (en) * | 2022-03-16 | 2022-06-21 | 燕山大学 | Bone cement remote injection device for vertebroplasty |
| CN114642492B (en) * | 2022-03-16 | 2024-03-26 | 燕山大学 | Bone cement remote injection device for vertebroplasty |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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