CN207445027U - Bone filler delivery cannula - Google Patents
Bone filler delivery cannula Download PDFInfo
- Publication number
- CN207445027U CN207445027U CN201720437702.5U CN201720437702U CN207445027U CN 207445027 U CN207445027 U CN 207445027U CN 201720437702 U CN201720437702 U CN 201720437702U CN 207445027 U CN207445027 U CN 207445027U
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- CN
- China
- Prior art keywords
- inner tube
- outer tube
- handle
- tube
- injection orifice
- Prior art date
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 28
- 239000000945 filler Substances 0.000 title claims abstract description 27
- 238000002347 injection Methods 0.000 claims abstract description 55
- 239000007924 injection Substances 0.000 claims abstract description 55
- 238000005452 bending Methods 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims abstract description 3
- 239000000956 alloy Substances 0.000 claims description 8
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 5
- 229920002521 macromolecule Polymers 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 241001631457 Cannula Species 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 208000010392 Bone Fractures Diseases 0.000 description 7
- 239000000243 solution Substances 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 2
- 208000001132 Osteoporosis Diseases 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010010214 Compression fracture Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000002639 bone cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model is related to a kind of bone filler delivery cannulas, outer tube handle, inner tube and the inner tube handle being fixedly connected with the near-end of said inner tube being fixedly connected including outer tube, with the near-end of the outer tube, said inner tube is slideably sleeved in the outer tube, the outer tube includes stationary curved section of distal portions and the straight section of proximal part, the stationary curved section of scheduled type has fixed bending angle, the tube wall of described stationary curved section of distal portions is equipped with 1 outer injection orifice, and the distal end of the outer tube is closed；The tube wall of the distal portions of said inner tube is equipped with 1 interior injection orifice, the distal portions of said inner tube are compliant section, by adjusting the outer tube handle and/or said inner tube handle, so that said inner tube and outer tube relative displacement, realize the outer injection orifice and the interior injection orifice in the coincidence of target location or stagger；Realize multi-point injection, it is easy to operate, complication rate is reduced, reduces operation risk.
Description
Technical field
The utility model is related to bone filler delivery instrument, particularly in percutaneous vertbroplasty (PCVP) or percutaneous vertebral body
A kind of bone filler delivery cannula used afterwards in convex plasty (PCKP).
Background technology
Compression fracture of vertabral body is mainly in the elderly caused by osteoporosis, as aging of population deepens continuously,
The patient for suffering from this disease is also increasing sharply, and percutaneous vertbroplasty (PVP) or Percutaneous kyplasty (PKP) exist
Irreplaceable role is wherein played.At present, bone filler delivery cannula is widely used in vertebroplasty, in image
Under equipment monitor, by external force into the cancellous space of vertebra injection fillers object (such as bone cement), reach reparation vertebral height,
Enhance the strength and stability of centrum, reduction of patient pain in back and loin, so as to treat the vertebral compression caused by osteoporosis
The purpose of fracture.
The external bone filler delivery cannula used in vertebroplasty (PCVP or PCKP), such as the patent No. at present
A kind of percutaneous vertebroplasty surgical instrument is disclosed for the foreign patent application of US7799035B2, wherein described bone is filled
Object delivery pipe is exactly curved, and the delivery pipe hardness in this patent is very high, this delivery pipe is there are two types of usage, first, utilizing this conveying
Pipe expands a cavity in advance in centrum before this, the shape of this cavity is similar to horn-like, and bone is then perfused into centrum again
Filler, and once a point can only be perfused in operation, second is that bone filler is directly perfused, do not expand a chamber in advance, and once
A point can only be perfused in operation, and such delivery pipe expands a cavity in advance, and the shape of this cavity is horn-like, and bone is caused to be filled out
It fills object to be unevenly distributed in centrum, increases the probability of complication generation and the risk of secondary fracture, furthermore it is such percutaneous
Pyramid plastic operation instrument needs to extract the fuse in delivery pipe in operation, and the effect of fuse is big in order to prevent
Broken bone enters the injection canal integrated operation complexity that delivery cannula blocks bone filler, extends operating time, adds operation
Risk.
It is easy to operate there is an urgent need for a kind of using flexible for the problems of the prior art, operating time can be shortened, and
It can realize multi-point injection, and then the bone filler delivery cannula of complication rate can be reduced.
Utility model content
In view of the drawbacks described above of the prior art, the technical problem to be solved by the utility model is to provide a kind of bone fillers
Delivery cannula, prevent when instrument from entering human body big broken bone through casing injection orifice enter bone filler injection canal cause it is stifled
Plug, easy to operate flexible, the method for passing through delivery pipe of dropping back realizes multi-point injection.
Technical solution is used by the utility model solves its technical problem：
A kind of bone filler delivery cannula, the outer tube handle being fixedly connected including outer tube, with the near-end of the outer tube, inner tube
The inner tube handle being fixedly connected with the near-end with said inner tube, said inner tube are slideably sleeved in the outer tube, described outer
Pipe includes stationary curved section of distal portions and the straight section of proximal part, and the stationary curved section of scheduled type has fixed curved
Bent angle, the tube wall of described stationary curved section of distal portions are equipped with 1 outer injection orifice, and the distal end of the outer tube is closed；Institute
The tube wall for stating the distal portions of inner tube is equipped with 1 interior injection orifice, and the distal portions of said inner tube are compliant section, by adjusting
State outer tube handle and/or said inner tube handle so that the outer injection orifice and described is realized in said inner tube and outer tube relative displacement
Interior injection orifice target location coincidence or stagger.
The purpose of this utility model can also further be realized by following technical solution：
Preferably, described stationary curved section by elastic material, memory alloy material or elastic material and memorial alloy material
The combination of material is made.
Preferably, the compliant section is Metal Cutting pipe, is had on the outer wall of the compliant section a plurality of circumferentially distributed
Cutting gap, cover the cutting gap by closeouts.
Preferably, the closeouts are polymer tube or polymeric membrane.
Preferably, said inner tube is macromolecule flexible pipe.
Preferably, angle regulator is provided on the outer tube handle and/or said inner tube handle, is operated described outer
Pipe handle and/or said inner tube handle so that said inner tube and the outer tube relatively rotate, and realize the outer injection orifice and described
Interior injection orifice target location coincidence or stagger.
Preferably, mark line is provided on the outer tube handle and/or said inner tube handle, operates the outer tube handle
And/or said inner tube handle so that said inner tube moves reciprocatingly compared with the outer tube, realizes the outer injection orifice and described
Interior injection orifice target location coincidence or stagger.
Preferably, described stationary curved section of near-end is fixedly connected with the distal end of the straight section.
Compared with the existing technology, it is as follows with progress the advantages of the utility model：
The bone filler delivery cannula of the utility model has inside and outside two layers of pipe structure, and this structure can make inner tube opposite
In outer tube rotary motion or reciprocating motion, by changing relative position between inner and outer tubes so that outer injection orifice and interior injection
Hole target location coincidence or stagger, realize the purpose that larger broken bone is prevented to enter delivery cannula, make patient's operation more
Flexibly.
Moreover, the bone filler delivery cannula of the utility model, realizes that multiple spot is noted by the method for whole recession delivery pipe
It penetrates, it is easy to operate, complication rate is reduced, reduces operation risk.
Description of the drawings
Fig. 1 a are the overall structure diagram of one embodiment of the utility model；
Fig. 1 b are the structure diagram of the outer tube of one embodiment of the utility model；
Fig. 1 c are the structure diagram of the inner tube of one embodiment of the utility model；
Fig. 1 d are that the outer tube handle of one embodiment of the utility model and the structure of or inner tube handle adjusting device are shown
It is intended to；
Usage state diagram when Fig. 1 e are the multi-point injection of one embodiment of the utility model；
Fig. 2 a are the overall structure diagram of second embodiment of the utility model；
Fig. 2 b are the structure diagram of the outer tube of second embodiment of the utility model；
Fig. 2 c are the structure diagram of the inner tube of second embodiment of the utility model；
Fig. 2 d be second embodiment of the utility model outer tube handle and or the structure of inner tube handle adjusting device show
It is intended to；
Usage state diagram when Fig. 2 e are the multi-point injection of second embodiment of the utility model；
Label wherein in attached drawing is as follows：1 is outer tube, and 2 be inner tube, and 3 be outer tube handle, and 4 be inner tube handle, and 5 be to puncture
Pin handle, 10 be outer injection orifice, and 20 be interior injection orifice, and 11 be stationary curved section, and 12 be straight section, and 22 be closeouts, and 21 be inner tube
Mark line, 31 be outer tube handle mark line, and 41 be inner tube handle mark line, and 51 be puncture needle handle mark line.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, develop simultaneously reality referring to the drawings
Example is applied the utility model is described in detail.
Near-end described in the utility model refers to one end close to operator, and the distal end refers to away from surgical procedure
One end of person.
Embodiment 1：
As shown in Figure 1a, a kind of bone filler delivery cannula, including outer tube 1, outer tube handle 3, inner tube 2 and inner tube handle 4,
The near-end of the outer tube 1 is fixedly connected with the outer tube handle 3, and the near-end of said inner tube 2 is fixed with said inner tube handle 4 to be connected
It connects, said inner tube 2 is slideably sleeved in the outer tube 1, and as shown in Figure 1 b, the outer tube 1 includes the fixation of distal portions
The straight section 12 of bending section 11 and proximal part, described stationary curved section 11 of near-end are fixedly connected with the distal end of the straight section 12,
Nested gluing connection may be employed or other equivalent connection modes are fixed, described stationary curved section 11 of making material is elasticity
The combination of material memory alloy material or elastic material and memory alloy material, described stationary curved section 11 scheduled type
With fixed bending angle, the tube wall of described stationary curved section 11 of distal portions is equipped with 1 outer injection orifice 10, described outer
The distal end closing of pipe 1；As illustrated in figure 1 c, the tube wall of the distal portions of said inner tube 2 is equipped with 1 interior injection orifice 20, described interior
The distal portions of pipe 2 are compliant section, and the compliant section is Metal Cutting pipe, are had on the outer wall of the compliant section a plurality of along week
To the cutting gap of distribution, the cutting gap is covered by closeouts 22, the closeouts 22 are polymer tube or macromolecule
Film is provided with angle regulator on the outer tube handle 3 and/or said inner tube handle 4, operate the outer tube handle 3 and/
Or said inner tube handle 4 so that said inner tube 2 is relatively rotated with the outer tube 1, realizes the outer injection orifice 10 and the interior note
Perforation 20 target location coincidence or stagger.It realizes the purpose that larger broken bone is prevented to enter delivery cannula, operates patient
More flexibly.
In use, as shown in Figure 1 d, the outer tube handle 3 is equipped with outer tube handle mark line 31, wherein x and y
Represent the angle corresponding to graduation mark, said inner tube 2 can be slidably sleeved in the outer tube 1, and originally said inner tube 2 is packed into
During outer tube 1, the mark line 41 on said inner tube handle 4 is just overlapped with the angle index line x on the outer tube handle 3, at this time
The outer injection orifice 10 staggers with the interior injection orifice 20, and the outer injection orifice 10 is closed, and rotation said inner tube handle 4 makes inner tube
Handle mark line 41 is overlapped with the outer tube handle angle mark line y, and the outer injection orifice 10 is overlapped with the interior injection orifice 20,
The outer injection orifice 10 is opened.As shown in fig. le, puncture needle handle mark line 51 is equipped on puncture needle handle 5, described defeated
Pipe is sent to be inserted into puncture needle syringe, the delivery pipe mark line a is overlapped with puncture needle handle mark line 51 at this time, passes through adjusting
Outer tube handle 3 makes outer tube handle mark line 31 move reciprocatingly compared with puncture needle handle mark line 51, makes delivery pipe mark successively
Note line b ... n is overlapped respectively with puncture needle handle mark line 51, realizes the outer injection orifice 10 of delivery pipe constantly from distally proximally moving
It is dynamic, after each outer tube handle mark line 31 is overlapped with puncture needle handle mark line 51, selected point is irrigated, is repeatedly adjusted
Section, multi-point injection.
Embodiment 2：
As shown in Figure 2 a, a kind of bone filler delivery cannula, including outer tube 1, outer tube handle 3, inner tube 2 and inner tube handle 4,
The near-end of the outer tube 1 is fixedly connected with the outer tube handle 3, and the near-end of said inner tube 2 is fixed with said inner tube handle 4 to be connected
It connects, said inner tube 2 is slideably sleeved in the outer tube 1, and as shown in Figure 2 b, the outer tube 1 includes the fixation of distal portions
The straight section 12 of bending section 11 and proximal part, described stationary curved section 11 of near-end are fixedly connected with the distal end of the straight section 12,
Nested gluing connection may be employed or other equivalent connection modes are fixed, described stationary curved section 11 of making material is elasticity
The combination of material memory alloy material or elastic material and memory alloy material, described stationary curved section 11 scheduled type
With fixed bending angle, the tube wall of described stationary curved section 11 of distal portions is equipped with 1 outer injection orifice 10, described outer
The distal end closing of pipe 1；As shown in Figure 2 c, the tube wall of the distal portions of said inner tube 2 is equipped with 1 interior injection orifice 20, described interior
Pipe 2 is macromolecule flexible pipe, and mark line is provided on the outer tube handle 3 and/or said inner tube handle 4, is operated described outer
Pipe handle 3 and/or said inner tube handle 4 so that said inner tube 2 moves reciprocatingly compared with the outer tube 1, realizes the outer note
Perforation 10 and the interior injection orifice 20 target location coincidence or stagger.It realizes and larger broken bone is prevented to enter delivery cannula
Purpose makes patient's operation more flexible.
In use, as shown in Figure 2 d, the outer tube handle 3 is equipped with outer tube handle mark line 31, said inner tube 2
Inner tube mark line 21 is equipped with, said inner tube 2 can be slidably sleeved in the outer tube 1, and originally said inner tube 2 is packed into outer tube
When 1, said inner tube mark line d is just overlapped with the outer tube handle mark line 31, outer injection orifice 10 described at this time with it is described interior
Injection orifice 20 staggers, and the outer injection orifice 10 is closed, and adjusting and pushing said inner tube handle 4 makes inner tube handle mark line e and institute
It states outer tube handle mark line 31 to overlap, the outer injection orifice 10 is overlapped with the interior injection orifice 20, and the outer injection orifice 10 is opened.
As shown in Figure 2 e, puncture needle handle mark line 51 is equipped on puncture needle handle 5, the delivery pipe is inserted into puncture needle syringe
In, the delivery pipe mark line a is overlapped with puncture needle handle mark line 51 at this time, by adjusting outer tube handle 3, makes outer tube handle
Mark line 31 moves reciprocatingly compared with puncture needle handle mark line 51, make successively delivery pipe mark line b ... n respectively with puncture needle
Handle mark line 51 overlaps, and realizes the outer injection orifice 10 of delivery pipe constantly from distally moving proximally to, each outer tube handle mark line
After 31 overlap with puncture needle handle mark line 51, selected point is irrigated, is repeatedly adjusted, multi-point injection.
Finally it should be noted that the foregoing is merely the utility model preferred embodiment, be not used to limit
The utility model processed, all any modification, equivalent and improvement made within the spirit and principle of the utility model etc.,
It should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of bone filler delivery cannula, it is characterised in that：It is fixedly connected including outer tube (1), with the near-end of the outer tube (1)
Outer tube handle (3), inner tube (2) and the inner tube handle (4) being fixedly connected with the near-end of said inner tube (2), said inner tube (2) can
It is slidably sleeved in the outer tube (1), stationary curved section (11) and proximal part of the outer tube (1) including distal portions
Straight section (12), described stationary curved section (11) be scheduled type have fixed bending angle, stationary curved section (11) it is remote
The tube wall of part is held to be equipped with 1 outer injection orifice (10), the distal end of the outer tube (1) is closed；The distal portions of said inner tube (2)
Tube wall be equipped with 1 interior injection orifice (20), the distal portions of said inner tube (2) are compliant section, by adjusting the outer tube hand
Handle (3) and/or said inner tube handle (4) so that the outer injection orifice is realized in said inner tube (2) and outer tube (1) relative displacement
(10) and the interior injection orifice (20) target location coincidence or stagger.
2. bone filler delivery cannula according to claim 1, it is characterised in that：Stationary curved section (11) are by elasticity
The combination of material, memory alloy material or elastic material and memory alloy material is made.
3. bone filler delivery cannula according to claim 1, it is characterised in that：The compliant section is Metal Cutting pipe,
There is a plurality of circumferentially distributed cutting gap on the outer wall of the compliant section, covering the cutting by closeouts (22) stitches
Gap.
4. bone filler delivery cannula according to claim 3, it is characterised in that：The closeouts (22) are polymer tubes
Or polymeric membrane.
5. bone filler delivery cannula according to claim 1, it is characterised in that：Said inner tube (2) is flexible for macromolecule
Pipe.
6. bone filler delivery cannula according to claim 1, it is characterised in that：In the outer tube handle (3) and/or institute
It states and is provided with angle regulator on inner tube handle (4), operate the outer tube handle (3) and/or said inner tube handle (4), make
It obtains said inner tube (2) to relatively rotate with the outer tube (1), realizes the outer injection orifice (10) and the interior injection orifice (20) in mesh
The coincidence of cursor position is staggered.
7. bone filler delivery cannula according to claim 1, it is characterised in that：In the outer tube handle (3) and/or institute
It states and is provided with mark line on inner tube handle (4), operate the outer tube handle (3) and/or said inner tube handle (4) so that described
Inner tube (2) moves reciprocatingly compared with the outer tube (1), realizes the outer injection orifice (10) and the interior injection orifice (20) in mesh
The coincidence of cursor position is staggered.
8. bone filler delivery cannula according to claim 1, it is characterised in that：The near-end of stationary curved section (11)
It is fixedly connected with the distal end of the straight section (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720437702.5U CN207445027U (en) | 2017-04-25 | 2017-04-25 | Bone filler delivery cannula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720437702.5U CN207445027U (en) | 2017-04-25 | 2017-04-25 | Bone filler delivery cannula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207445027U true CN207445027U (en) | 2018-06-05 |
Family
ID=62246961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720437702.5U Active CN207445027U (en) | 2017-04-25 | 2017-04-25 | Bone filler delivery cannula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207445027U (en) |
-
2017
- 2017-04-25 CN CN201720437702.5U patent/CN207445027U/en active Active
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