CN204683755U - A kind of bone cement infusion appliance - Google Patents
A kind of bone cement infusion appliance Download PDFInfo
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- CN204683755U CN204683755U CN201520307609.3U CN201520307609U CN204683755U CN 204683755 U CN204683755 U CN 204683755U CN 201520307609 U CN201520307609 U CN 201520307609U CN 204683755 U CN204683755 U CN 204683755U
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- bone cement
- ascending pipe
- infusion appliance
- vertebral body
- tap
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Abstract
This utility model embodiment provides a kind of bone cement infusion appliance, described bone cement infusion appliance comprises bone cement ascending pipe (2), the free end of described bone cement ascending pipe (2) is positioned in vertebral body, and Intrapyramidal described bone cement ascending pipe (2) in circular; The tube wall of Intrapyramidal described bone cement ascending pipe (2) is uniformly distributed tap (6), the central point line of described tap (6) and the axial centerline parallel of bone cement ascending pipe (2).The bone cement infusion appliance that this utility model embodiment provides can solve the problem of bone cement skewness when pleurocentrum is strengthened.
Description
Technical field
This utility model relates to technical field of medical instruments, more specifically, relates to a kind of bone cement infusion appliance.
Background technology
Osteoporosis (osteoporosis) is common complaint among the elderly and frequently-occurring disease, and osteoporosis the most common and the most serious complication be osteoporosis centrum compression fracture (osteoporosis vertebral compressionfractures, i.e. OVCF).The modus operandi that current treatment OVCF is conventional is vertebroplasty, and vertebroplasty refers at the pathological changes vertebral body place of sufferer injection bone cement, makes the intensity enhancing of pathological changes vertebral body, thus the loins pain that alleviation OVCF causes.Because vertebroplasty wound is little, it is fast to recover, be thus subject to the favor of numerous doctors and patient.
Traditional vertebroplasty generally once can only be strengthened pleurocentrum, when needs are strengthened vertebral body through bilateral pedicle of vertebral arch, can increase hands fluoroscopy during operation number of times, makes doctor and patient be subject to RADI larger.
In addition, in vertebroplasty during Cement infusion appliance, needing to be released by bone cement by injecting bar and to enter vertebral body, when bone cement enters vertebral body, can only be the multidirectional or directed release of end aperture from injecting bar.Because vertebral body is similar to cylindrical, therefore bone cement is at Intrapyramidal skewness, thus affects the intensity of vertebral body, and then the effect of impact operation even can increase the risk that contiguous vertebral body at a specified future date sends out fracture again, cannot complete the operation that bone cement evenly injects.
Utility model content
The purpose of this utility model is to provide a kind of bone cement infusion appliance, the problem of bone cement skewness when the pleurocentrum solved described in background technology is strengthened.
In order to solve the problems of the technologies described above, this utility model provides following technical scheme:
A kind of bone cement infusion appliance, described bone cement infusion appliance comprises bone cement ascending pipe, and the free end of described bone cement ascending pipe is positioned in vertebral body, and is circular at Intrapyramidal described bone cement ascending pipe; The tube wall of Intrapyramidal described bone cement ascending pipe is uniformly distributed tap, the central point line of described tap and the axis parallel of bone cement ascending pipe.
Preferably, in described bone cement infusion appliance, described bone cement infusion appliance also comprises memory guide wire, and the tail end of described memory guide wire to be placed in vertebral body and in circular in vertebral body.
Preferably, in described bone cement infusion appliance, described memory guide wire is Ultimum Ti seal wire.
Preferably, in described bone cement infusion appliance, the Handheld Division of described memory guide wire is provided with detachable handle.
Preferably, in described bone cement infusion appliance, described bone cement infusion appliance also comprises the trocar sleeve of hollow, is provided with puncture inner core in described trocar sleeve, and the free end of described puncture inner core is the circle that diameter reduces gradually.
Preferably, in described bone cement infusion appliance, described bone cement ascending pipe is also provided with handle, and the centre of described handle is provided with inlet, and described inlet is connected with described bone cement ascending pipe.
Preferably, in described bone cement infusion appliance, the below of described inlet is provided with bearing mark, and described bearing mark is positioned on described handle.
Preferably, in described bone cement infusion appliance, between described bearing mark and described tap, position mark is provided with.
Preferably, in described bone cement infusion appliance, the end of described bone cement ascending pipe free end is provided with opening, and the tube wall of described opening is provided with degradable shell fragment.
Preferably, in described bone cement infusion appliance, the aperture of described tap is 1mm-2mm, and the number of described tap is 6-8.
The beneficial effect of the bone cement infusion appliance that this utility model embodiment provides is as follows:
After bone cement ascending pipe enters vertebral body, the free end of bone cement ascending pipe is formed circular, and described annulus is positioned at the below of the upper soleplate of cylindric vertebral body, bone cement is injected rifle and bone cement is injected bone cement ascending pipe, and bone cement is slowly entered in vertebral body by the tap be arranged on bone cement ascending pipe free end annulus.Free end due to bone cement ascending pipe is circular, and described annulus is positioned at the below of the upper soleplate of cylindric vertebral body, therefore bone cement can enter each orientation of vertebral body by the tap on annulus, and then realize bone cement being uniformly distributed in vertebral body, thus the even intensity of postoperative vertebral body is strengthened, reduce the risk that fracture occurs contiguous vertebral body, finally solve the problem of bone cement skewness when pleurocentrum is strengthened.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in this utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the bone cement infusion appliance that this utility model embodiment provides;
Fig. 2 is the structural representation of memory guide wire in the bone cement infusion appliance that provides of this utility model embodiment;
Fig. 3 is the structural representation of bone cement ascending pipe in the bone cement infusion appliance that provides of this utility model embodiment;
Fig. 4 is the structural representation of trocar sleeve in the bone cement infusion appliance that provides of this utility model embodiment;
Fig. 5 is the structural representation that in the bone cement infusion appliance that provides of this utility model embodiment, bone cement injects rifle;
Illustrate:
1-memory guide wire, 2-bone cement ascending pipe, 3-trocar sleeve, 4-bone cement injects rifle, 5-detachable handle, 6-tap, 7-position mark, 8-degradable shell fragment, 9-bearing mark, 10-inlet, 11-handle, and 12-punctures inner core, and 13-injects mouth, 14-piston.
Detailed description of the invention
The purpose of this utility model is to provide a kind of bone cement infusion appliance, the problem of bone cement skewness when the pleurocentrum solved described in background technology is strengthened.
Technical scheme in this utility model embodiment is understood better in order to make those skilled in the art person, and enable the above-mentioned purpose of this utility model embodiment, feature and advantage become apparent more, below in conjunction with accompanying drawing, the technical scheme in this utility model embodiment is described in further detail.
The bone cement infusion appliance that this utility model embodiment provides comprises memory guide wire 1, bone cement ascending pipe 2, trocar sleeve 3 and bone cement and injects rifle 4.
Please refer to accompanying drawing 2, Figure 2 shows that the structural representation of the memory guide wire 1 in the bone cement infusion appliance that this utility model embodiment provides.The effect of memory guide wire 1 provides a passage for bone cement ascending pipe 2 enters vertebral body smoothly.The Handheld Division of described memory guide wire 1 is provided with detachable handle 5, described detachable handle 5 is convenient to described memory guide wire 1 and is easy to enter vertebral body inside, after described memory guide wire 1 enters vertebral body inside, described detachable handle 5 is removed, so that bone cement ascending pipe 2 is through described memory guide wire 1.The tail end of described memory guide wire 1 forms the annulus of circular configuration automatically after entering vertebral body, for enabling bone cement be evenly distributed in vertebral body, therefore can be regulated the direction of annulus by detachable handle 5, making described annulus be parallel to the upper soleplate of vertebral body.For enabling bone cement fast and being evenly distributed in vertebral body, the diameter of described annulus is 8-12mm.Preferably, described memory guide wire 1 is Nitinol memory guide wire, because Nitinol is a kind of marmem, can make self plastic deformation to occur under certain temperature conditions, after thus Nitinol memory guide wire enters vertebral body, automatically can form the annulus of circular configuration.
Please refer to accompanying drawing 3, Figure 3 shows that the structural representation of the bone cement ascending pipe 2 in the bone cement infusion appliance that this utility model embodiment provides.The pipe shaft of described bone cement ascending pipe 2 is hollow structure, can enter when making described bone cement ascending pipe 2 enter vertebral body like this along memory guide wire 1.Tail end due to described memory guide wire 1 is in circular in vertebral body, and therefore, the free end of described bone cement ascending pipe 2 enters after vertebral body also in circular.The pipe shaft of described bone cement ascending pipe 2 is provided with handle 11, and described handle 11 is easy to described bone cement ascending pipe 2 and enters vertebral body.The centre of described handle 11 is also provided with inlet 10, and described inlet 10 is connected with described bone cement ascending pipe 2, and bone cement is injected rifle 4, by inlet 10, bone cement injected bone cement ascending pipe 2.Described handle 11 is provided with bearing mark 9 in the below of described inlet 10, the direction of tap 6 can be judged by described bearing mark 9, when bearing mark 9 down time, tap 9 is towards the lower soleplate of vertebral body; When bearing mark 9 upward time, tap 9 is towards the upper soleplate of vertebral body.
The tube wall entering Intrapyramidal described bone cement ascending pipe 2 annular formations is provided with tap 6, and the central point line of described tap 6 and the axial centerline parallel of bone cement ascending pipe 2, described tap 6 is for entering the bone cement in described bone cement ascending pipe 2 in vertebral body.Preferably, the ring part of described tap 6 all after described bone cement ascending pipe 2 enters vertebral body, makes bone cement can only be injected in vivo when injecting like this.
Further, the diameter of described tap 6 is 1mm-2mm.Described tap 6 is excessive, then can affect the intensity of described bone cement ascending pipe 2 pipe shaft; Described tap 6 is too small, then bone cement can be made to inject Intrapyramidal speed excessively slow, and therefore, preferably, the diameter of described tap 6 is 1mm-2mm.
Further, the number of described tap 6 is 6-8.Same, described tap 6 is too much, then can affect the intensity of described bone cement ascending pipe 2 pipe shaft; Described tap 6 is very few, then bone cement can be made to inject Intrapyramidal speed excessively slow, and therefore, preferably, the number of described tap 6 is 6-8, and 6-8 described tap 6 be evenly distributed in described bone cement ascending pipe 2 enter vertebral body after ring part.
Described bone cement ascending pipe 2 is also provided with position mark 7, and described position mark 7 is between bearing mark 9 and tap 6.Described position mark 7 is used for carrying out labelling to the position of tap 6, so that bone cement injects vertebral body after solidifying, rotary handle 11 makes the bone cement ascending pipe 2 at position mark 7 place rupture, the annular formations of described bone cement ascending pipe 2 is stayed in vertebral body, and takes out the remainder of described bone cement ascending pipe 2.Preferably, described position mark 7 is positioned at the intersection that described bone cement ascending pipe 2 enters annular formations and straight-tube portion after vertebral body, ensures that bone cement can not be injected into outside vertebral body when injecting like this.
Because the annular formations of described bone cement ascending pipe 2 is stayed in vertebral body, therefore, the materials'use good stability of described bone cement ascending pipe 2, the PEEK (polyetheretherketone, i.e. polyether-ether-ketone) that self lubricity is strong, mechanical performance is excellent.
The end of described bone cement ascending pipe 2 free end is provided with opening, can ensure that described bone cement ascending pipe 2 enters vertebral body along memory guide wire 1 like this.After described bone cement ascending pipe 2 enters vertebral body along memory guide wire 1, extract described memory guide wire 1 out described bone cement ascending pipe 2, so that inject bone cement at described bone cement ascending pipe 2.After described memory guide wire 1 is extracted out, the process that bone cement is injecting vertebral body can enter in vertebral body from the opening part of described bone cement ascending pipe 2 free end end, causes bone cement at Intrapyramidal skewness.For preventing bone cement at Intrapyramidal skewness, thus the opening part of described bone cement ascending pipe 2 end is provided with degradable shell fragment 8.Described degradable shell fragment 8 can be closed lightly after described memory guide wire 1 detaches described bone cement ascending pipe 2, thus ensure that the process that bone cement is injecting vertebral body can not enter in vertebral body from the opening part of described bone cement ascending pipe 2 free end end, and then bone cement can not be caused in the problem of Intrapyramidal skewness.Described degradable shell fragment 8 uses degradable biomedical material, as collagen, polylactic acid, cellulose etc.
Please refer to accompanying drawing 4, Figure 4 shows that the structural representation of the trocar sleeve 3 in the bone cement infusion appliance that this utility model embodiment provides.Trocar sleeve 3 is hollow structure, and in the hollow space of described trocar sleeve 3, establish puncture inner core 12, the free end of described puncture inner core 12 is the circle that diameter reduces gradually, and pointed at the end of described puncture inner core 12 free end.Puncture inner core 12 is set in described trocar sleeve 3, is convenient to described trocar sleeve 3 and enters in vertebral body smoothly, and strengthen the intensity of described trocar sleeve 3 pipe shaft.In pyramid plastic operation, described trocar sleeve 3 is introduced in vertebral body, then extracts described puncture inner core 12, and the hollow bowl along trocar sleeve 3 described in described memory guide wire 1 is entered vertebral body.
Please refer to accompanying drawing 5, Figure 5 shows that the bone cement in the bone cement infusion appliance that this utility model embodiment provides injects the structural representation of rifle 4.Bone cement injects rifle 4 in use, the mouth 13 of injecting that the graduated described bone cement of band injects rifle 4 is aimed at the inlet 10 of described bone cement ascending pipe 2, piston 14 in rifle 4 is injected by promoting described bone cement, pushing being placed on the described bone cement quantitative bone cement of injecting in rifle 4 in advance in described bone cement ascending pipe 2, completing the injection of bone cement in bone cement ascending pipe 2.
Please refer to accompanying drawing 1, Figure 1 shows that the bone cement infusion appliance schematic diagram that this utility model embodiment provides.The work process of this bone cement infusion appliance is as follows:
First trocar sleeve 3 is put into the lesion locations of vertebral body under X-ray transmission, extract puncture inner core 12, then the memory guide wire 1 with detachable handle 5 is put into vertebral body along the hollow pipe of trocar sleeve 3, circular ring is formed after described memory guide wire 1 enters vertebral body, regulate the direction of the detachable handle 5 on described memory guide wire 1 to adjust the direction of circular ring, annulus is finally made to be parallel to the upper soleplate of vertebral body, now, the diameter of annulus is 8-12mm, then remove detachable handle 5, and described trocar sleeve 3 is taken out.Bone cement ascending pipe 2 is placed along described memory guide wire 1, the handle 11 of bone cement ascending pipe 2 is regulated to make tap 6 towards the lower soleplate of vertebral body, subsequently described memory guide wire 1 is all detached described bone cement ascending pipe 2, close gently to make the degradable shell fragment 8 of described bone cement ascending pipe 2 free end end.The mouth 13 of injecting that the graduated bone cement of band injects rifle 4 is aimed at the inlet 10 of described bone cement ascending pipe 2, piston 14 in rifle 4 is injected by promoting described bone cement, pushing being placed on the described bone cement quantitative bone cement of injecting in rifle 4 in advance in described bone cement ascending pipe 2, completing the injection of bone cement in bone cement ascending pipe 2.Again described memory guide wire 1 is put into described bone cement ascending pipe 2, now the bone cement be injected in described bone cement ascending pipe 2 can slowly push vertebral body from tap 6, to realize the injection of bone cement to vertebral body by described memory guide wire 1.After bone cement injects, described memory guide wire 1 is retreated to position mark 7 place, wait for that Intrapyramidal bone cement solidifies rear rotary handle 11 and makes described bone cement ascending pipe 2 in the fracture of position mark 7 place, the described bone cement ascending pipe 2 of described memory guide wire 1 and straight-tube portion is taken out.
Can find out from the work process of above-mentioned bone cement infusion appliance and use this bone cement infusion appliance vertebroplasty, bone cement can be made to be evenly distributed in vertebral body, thus strengthen the intensity of vertebral body, reduce contiguous vertebral body in the risk that fracture occurs.Meanwhile, the transmission time of X-ray when using this bone cement infusion appliance can reduce operation in vertebroplasty, thus reduce the RADI to human body, improve the safety of operative doctor and patient.
Although describe this utility model in the mode of specific embodiment, but to those skilled in the art, when not departing from the spirit and scope of the present utility model that appended claims limits, can carry out variations and modifications to this utility model, these changes and amendment are included in scope of the present utility model equally.
Claims (10)
1. a bone cement infusion appliance, it is characterized in that, described bone cement infusion appliance comprises bone cement ascending pipe (2), and the free end of described bone cement ascending pipe (2) is positioned in vertebral body, and Intrapyramidal described bone cement ascending pipe (2) in circular; The tube wall of Intrapyramidal described bone cement ascending pipe (2) is uniformly distributed tap (6), the central point line of described tap (6) and the axial centerline parallel of bone cement ascending pipe (2).
2. bone cement infusion appliance according to claim 1, is characterized in that, described bone cement infusion appliance also comprises memory guide wire (1), and the tail end of described memory guide wire (1) to be placed in vertebral body and in circular in vertebral body.
3. bone cement infusion appliance according to claim 2, is characterized in that, described memory guide wire (1) is Ultimum Ti seal wire.
4. bone cement infusion appliance according to claim 3, is characterized in that, the Handheld Division of described memory guide wire (1) is provided with detachable handle (5).
5. bone cement infusion appliance according to claim 2, it is characterized in that, described bone cement infusion appliance also comprises the trocar sleeve (3) of hollow, be provided with puncture inner core (12) in described trocar sleeve (3), and the free end of described puncture inner core (12) is the circle that diameter reduces gradually.
6. bone cement infusion appliance according to claim 1, it is characterized in that, described bone cement ascending pipe (2) is also provided with handle (11), the centre of described handle (11) is provided with inlet (10), and described inlet (10) is connected with described bone cement ascending pipe (2).
7. bone cement infusion appliance according to claim 6, is characterized in that, the below of described inlet (10) is provided with bearing mark (9), and described bearing mark (9) is positioned on described handle (11).
8. bone cement infusion appliance according to claim 7, is characterized in that, is provided with position mark (7) between described bearing mark (9) and described tap (6).
9. bone cement infusion appliance according to claim 1, is characterized in that, the end of described bone cement ascending pipe (2) free end is provided with opening, and the tube wall of described opening is provided with degradable shell fragment (8).
10. bone cement infusion appliance according to claim 1, is characterized in that, the aperture of described tap (6) is 1mm-2mm, and the number of described tap (6) is 6-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520307609.3U CN204683755U (en) | 2015-05-13 | 2015-05-13 | A kind of bone cement infusion appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520307609.3U CN204683755U (en) | 2015-05-13 | 2015-05-13 | A kind of bone cement infusion appliance |
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| CN204683755U true CN204683755U (en) | 2015-10-07 |
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| CN201520307609.3U Expired - Fee Related CN204683755U (en) | 2015-05-13 | 2015-05-13 | A kind of bone cement infusion appliance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113143436A (en) * | 2021-03-12 | 2021-07-23 | 李鹏 | Novel implantable bent angle centrum shaping device |
| CN114145835A (en) * | 2021-11-26 | 2022-03-08 | 山东省千佛山医院 | On-line monitoring system for injection, dispersion and solidification process of bone cement at fracture |
-
2015
- 2015-05-13 CN CN201520307609.3U patent/CN204683755U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113143436A (en) * | 2021-03-12 | 2021-07-23 | 李鹏 | Novel implantable bent angle centrum shaping device |
| CN114145835A (en) * | 2021-11-26 | 2022-03-08 | 山东省千佛山医院 | On-line monitoring system for injection, dispersion and solidification process of bone cement at fracture |
| CN114145835B (en) * | 2021-11-26 | 2023-10-20 | 山东省千佛山医院 | Online monitoring system for injection, dispersion and solidification process of bone cement at fracture |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20160513 |
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| CF01 | Termination of patent right due to non-payment of annual fee |