CN109276303A - Cement reaction screw and bone cement injection device - Google Patents
Cement reaction screw and bone cement injection device Download PDFInfo
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- CN109276303A CN109276303A CN201811428941.XA CN201811428941A CN109276303A CN 109276303 A CN109276303 A CN 109276303A CN 201811428941 A CN201811428941 A CN 201811428941A CN 109276303 A CN109276303 A CN 109276303A
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- 239000002639 bone cement Substances 0.000 title claims abstract description 58
- 239000004568 cement Substances 0.000 title claims abstract description 54
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 50
- 238000002347 injection Methods 0.000 title claims abstract description 41
- 239000007924 injection Substances 0.000 title claims abstract description 41
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002980 postoperative effect Effects 0.000 abstract description 6
- 201000010099 disease Diseases 0.000 abstract description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 5
- 210000003205 muscle Anatomy 0.000 abstract description 4
- 208000035874 Excoriation Diseases 0.000 abstract description 3
- 210000000988 bone and bone Anatomy 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 208000017989 Kummell disease Diseases 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000036407 pain Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 206010023509 Kyphosis Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 230000001144 postural effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 230000018199 S phase Effects 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 238000001949 anaesthesia Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 238000002695 general anesthesia Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000001009 osteoporotic effect Effects 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8816—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by the conduit, e.g. tube, along which fluid flows into the body or by conduit connections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Neurology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of cement reaction screw and bone cement injection device, device includes holder, connecting rod, syringe and cement reaction screw；The holder is provided with operating walk way, and connecting rod is provided with injection canal；The cement reaction screw is connect with holder one end, and connecting rod one end is protruded into the operating walk way of holder, and is connected boom end and contacted with the screw tail portion of cement reaction screw；The connecting rod other end is connect with syringe.The cement reaction screw can not only fix bone cement well and avoid the postoperative displacement of bone cement, while be zero incisura after cement reaction screw operation, and screw is fully located in disease vertebra pedicle of vertebral arch, no muscle or skin abrasion, on patient's influence without any side effects.
Description
Technical field
The invention belongs to Orthopedic operation assist device tool technical field, in particular to a kind of cement reaction screw and bone cement
Injection device.
Background technique
With the progress of aging of population, the every Annual occurence rate of osteoporotic thoracolumbar fracture is about 30%, when patient passes through
When being shown as several months after going through microtrauma or even occurring pain, kyphosis deformity once again after several years non-evident sympton phases, this kind of bones
The loose thoracolumbar fracture of matter is referred to as Kummell disease, shows as occurring bone defect in spinal vertebral in iconography.Kummell disease
Main clinical manifestation is that pain obviously aggravates earlier above, with turn over get up, stand, Ambulatory Activity when for very, and there is collapse of vertebra
And the kyphosis deformity of progressive, or even there is nerve function lesion, seriously affect patients ' life quality.As current China is aged
The lasting aggravation changed, Kummell patient also increase year by year, main at present and most effective Kummell disease therapeutic modality
For PVP or PKP, the equal Cement of the two is filled sick vertebra, to fill up bone defect, stablize backbone, reaches reduction of patient
Pain, the therapeutic effect for correcting spinal anterior approach.
However, clinically occurring bone cement displacement situation after the filling of Kummell disease Cement often, so that operation is controlled
Failure is treated, patient has to receive open revision procedure, while Kummell patient is mostly elderly patient, secondary to overhaul
Patient with operation is often relatively difficult to bear, or even causes the serious consequences such as death.
Summary of the invention
The purpose of the present invention is to provide cement reaction screw and bone cement injection devices, after bone cement perfusion
There is bone cement and shifts problem.This zero incisura cement reaction screw can not only fix well bone cement and avoid bone cement
Postoperative displacement, at the same the cement reaction screw operation after be zero incisura, screw is fully located in disease vertebra pedicle of vertebral arch, no muscle or
Skin abrasion, on patient's influence without any side effects.
To reach realization above-mentioned purpose, this experiment is adopted the following technical scheme that
A kind of cement reaction screw, comprising: sequentially connected screw head, screw rod and screw tail portion, screw rod and screw
Tail portion is internally provided with the injection runner for bone cement injection, and the bone being connected to the injection runner is provided on screw head
Cement side opening；Nail tail screw thread is provided on screw tail portion.
The bone cement side opening is at least arranged one；When being arranged multiple, multiple bone cement side opening dislocation arrangements.
Externally threaded outer diameter is equal on the screw rod.
External screw thread includes the first screw thread and the second screw thread on the screw rod, and the major diameter of thread on the first screw thread is equal,
Major diameter of thread on second screw thread becomes larger along the first thread head to the other end, and the thread pitch on the second screw thread 15 is less than
Thread pitch on first screw thread 13.
A kind of pedicle of vertebral arch bone cement injection device, including holder, connecting rod, syringe and Claims 1-4 are any one
Cement reaction screw described in；The holder is provided with operating walk way, and connecting rod is provided with injection canal；Described
Cement reaction screw is connect with holder one end, and connecting rod one end is protruded into the operating walk way of holder, and connects boom end
It is contacted with the screw tail portion of cement reaction screw；The connecting rod other end is connect with syringe.
The screw tail portion of the cement reaction screw is internally provided with tail portion interface；
The operating walk way inner wall of described holder one end is provided with the internal screw thread for being threadedly engaged connection with nail tail, separately
Handle part is provided on one end；
Connecting rod includes the body of rod, and body of rod one end is provided with the end-fitting for connecting with tail portion Interference fit, the other end
Be provided with for and pigtail connection connected to syringe, be provided with bolt head on pigtail connection one end on the body of rod.
The tail portion interface and end-fitting is insertion fit structure, and cannot phase after end-fitting insertion tail portion interface
To rotation.
Tail portion interface polygonized structure identical with the section of end-fitting.
The connecting rod further includes the extension component for adjusting connection pole length, and extending component includes extension rod and company
Junctor, extension rod are connect by connector with the body of rod.
The injection canal of the connecting rod is identical as the injection flow diameter of cement reaction screw.
Compared with prior art, the invention has the following advantages:
Cement reaction screw of the invention is placed in by the screw that setting screw rod carries out sick vertebra pedicle of vertebral arch, then by setting
The injection that injection runner carries out bone cement is set, while realization is screwed, injection cement can be realized secondary fixed function, have
Effect prevents the case where being separately injected into bone cement postoperative displacement.The cement reaction screw can not only fix bone cement well
The postoperative displacement of bone cement is avoided, while being zero incisura after cement reaction screw operation, screw is fully located at disease vertebra pedicle of vertebral arch
It is interior, no muscle or skin abrasion, on patient's influence without any side effects.
Pedicle of vertebral arch bone cement injection device of the invention, passes through cement reaction screw, holder, connecting rod and syringe
It is sequentially connected, cement reaction screw and pedicle of vertebral arch is first subjected to screw merging, then bone cement is carried out by connecting rod in vitro
Injection process；Being rapidly injected for bone cement is realized, and realizes effective fixation of bone cement, avoids the postoperative shifting of bone cement
Position.The design of connecting rod is effectively reduced operating difficulty, reduces patient pain.
Detailed description of the invention
The cement reaction screw schematic diagram of Fig. 1 embodiment of the present invention one；
The cement reaction screw schematic diagram of Fig. 2 embodiment of the present invention two；
Fig. 3 is pedicle of vertebral arch bone cement injection device structure chart of the invention；
Fig. 4 is the structure chart of holder in Fig. 3；
Fig. 5 is a kind of example structure figure of connecting rod in Fig. 3；
Fig. 6 is another example structure figure of connecting rod in Fig. 3；
Fig. 7 is the schematic cross-section of pedicle of vertebral arch bone cement injection device of the present invention；
Wherein: 1- cement reaction screw, 2- holder, 3- connecting rod, 4- connecting tube, 11- screw head, 12- bone water
Mud side opening, the first screw thread of 13-, 14- screw rod, the second screw thread of 15-, 16- screw tail portion, 21- internal screw thread, the channel 22-, 23- are held
Portion, 31- end-fitting, the 32- body of rod, 33- bolt head, 34- pigtail connection, 35- extension rod, 36- connector.
Specific embodiment
Specific embodiments of the present invention are given below, it should be noted that the invention is not limited to implement in detail below
Example, all equivalent transformations made on the basis of the technical solutions of the present application each fall within protection scope of the present invention.
As depicted in figs. 1 and 2, the present invention provides a kind of cement reaction screw, along axis inside cement reaction screw 1
To the injection runner being provided with for bone cement injection；Cement reaction screw 1 includes screw head 11, screw rod 14 and screw tail
Portion 16.Screw head 11 is tip, and bone cement side opening 12 is provided on screw head 11, bone cement side opening 12 and injection runner
Connection.External screw thread is set on screw rod 14.Nail tail screw thread is provided on screw tail portion 16.
Bone cement side opening 12 is at least arranged one, and when being arranged multiple, multiple bone cement side openings 12 are arranged in different directions
On different height.Such as four bone cement side openings 12 are set gradually according to the direction of spiraling of screw thread.
As shown in Figure 1, the major diameter of external thread on screw rod 14 is equal, the rotation being threaded into is provided when convenient for connecting with bone
Clamp force.
Preferably, as shown in Fig. 2, the external screw thread on screw rod 14 is segmented thread, including the first screw thread 13 and the second screw thread
15, the major diameter of thread on the first screw thread 13 is equal, provided when convenient for being connect with bone be threaded into screw power.Second screw thread
Major diameter of thread on 15 becomes larger along 13 end of the first screw thread to the other end, and the thread pitch on the second screw thread 15 is less than first
Thread pitch on screw thread 13 is convenient for providing coupling mechanism force after establishing connection with pedicle of vertebral arch in this way, prevents postoperative screw and bone cement
Displacement.
After cement reaction screw operation through the invention, entire cement reaction screw enters inside pedicle of vertebral arch.Spiral shell
Nail becomes a part of sick vertebra centrum, is fully located in disease vertebra bony structure, in fixed centrum on the basis of bone cement with disease
Vertebra centrum peripheral vessels, nerve, interverbebral disc and soft tissue etc. do not contact, and have no effect to sick vertebra surrounding tissue.
As shown in figure 3, the present invention also provides a kind of bone cement injection device, including cement reaction screw 1, holder
2, connecting rod 3 and syringe 5.Cement reaction screw 1 includes screw head 11, screw rod 14 and screw tail portion 16, screw head
11 be tip, and bone cement side opening 12 is provided on screw head 11, and bone cement side opening 12 is connected to injection runner.On screw rod 14
External screw thread is set.Nail tail screw thread is provided on screw tail portion 16, screw tail portion 16 is internally provided with tail portion interface.
As shown in figure 4, perforative operating walk way is provided on holder 2, the operating walk way inner wall setting of 2 one end of holder
There is internal screw thread 21, handle part 23 is provided on the other end.The screw tail portion 16 of cement reaction screw 1 and the interior spiral shell of holder 2
Line 21 connects.Nail tail screw thread is matched with the internal screw thread 21 of holder 2, can be linked together with holder 2.2 head of holder with
Cement reaction screw 1 is to be threadedly coupled, and inside has screw drive structure, i.e. internal screw thread 21, can adjust and press by rotation
It is close to the gap of extension bar 3 Yu cement reaction screw 1.
Preferably, exposed when bone cement injects in order to prevent, injection canal and the cement reaction screw 1 of connecting rod 3
It is identical to inject flow diameter.When identical channel is injected, it is possible to reduce bone cement is exposed caused by changing because of runner causes
Operation is unexpected.
Wherein, handle part 23 is outer hexahedron, can carry out operation using tool while convenient for holding.
As shown in figure 5, connecting rod 3 includes the body of rod 32, the body of rod 32 is axially inside provided with perforative injection canal；The body of rod
32 one end are provided with end-fitting 31, and the other end is provided with pigtail connection 34, is arranged on 3 one end of pigtail connection on the body of rod 32
There is bolt head 33.End-fitting 31 matches with tail portion interface.Tail portion interface polygon identical with the section of end-fitting 31
Structure, such as common four directions or hexagonal structure.Bolt head 33 is outer hexahedron, convenient for that can use tool while holding
(spanner) carries out operation.Six side of head of connecting rod 3 matches with interior six side of pedicle screw, and six side of tail portion is for being screwed into spiral shell
Nail, in addition pigtail connection 34 can be matched directly with syringe 5.
Wherein, end-fitting 31 is greater than the length of holder 2 to the length of bolt head 33.
Preferably, as shown in fig. 6, connecting rod 3 further includes for adjusting when the length for needing to be attached bar 3 extends
The extension component of 3 length of connecting rod, extending component includes extension rod 35 and connector 36, and extension rod 35 passes through connector 36 and bar
Body 32 is threadedly coupled.One or more extension rods 35 are connected at the middle part of connecting rod 3 by connector 36.
As shown in Figure 3 and 7,3 one connection cement reaction screws 1 of connecting rod, other end and syringe 5 and connecting tube 4
It is connected, the bolt head 33 of the close hexahedron that one section is connect with syringe 5 and extension tube 4 makes a decision for being selected into bone cement.
As shown in fig. 7, the application method of bone cement injection device of the present invention is as follows:
1. holder 2 is connect by internal screw thread 21 with pedicle screw 1；
2. connecting rod 3 is along the connecting hole of six sides of the operating walk way insertion pedicle screw of holder 2；
3. rotating the screw thread on holder 2, connecting rod 3 and cement reaction screw 1 are compressed.
4. the bolt head 33 of the hexahedron by 3 tail portion of connecting rod, is screwed into cement reaction spiral shell using six square socket of tool
Nail.
5. connecting syringe 5 and connecting rod 3 by connecting tube 4, bone cement is injected.
In conjunction with specific operation, the device of the invention use process is illustrated:
Patient takes prone position after general anesthesia or local anaesthesia, cushion is disposed at patient chest and anterior superior spine, vacantly
Abdomen makes chest, waist section be maintained at hyperextension position in favor of Postural reduction.After Postural reduction, sick vertebra bilateral is marked under C-arm perspective
The body surface projection of pedicle of vertebral arch lateral border.According to patient's fat or thin degree selection on the outside of body surface marking the place 0.5-1cm transverse direction percutaneous incision
Skin is about 7mm, successively cuts subcutaneous tissue and lumbodorsal fascia.Under the guidance of anteroposterior position X-ray examination, using unilateral or bilateral skill
Needle tip is placed in the outer rim (2 point of 10 point of left side or right side) of pedicle of vertebral arch projection by art, and 10-15 ° of inward slant parallel whole
Plate pedicle is punctured into centrum, when X-ray examination Conducted Puncture needle tip arrives at centrum rear in side position, uses anteroposterior position instead
X-ray examination puncture needle tip does not break through interior lateral margin in pedicle of vertebral arch projection (can avoid screw from being strayed into canalis spinalis as far as possible by the step
It is interior).Then side position X-ray examination is used instead to confirm that puncture needle is parallel with soleplate and continue to puncture to centrum rear veutro 0.5-1cm,
Be placed in guide pin, guide pin is not inserted into it is too deep, in order to avoid guide pin wears out centrum to visceral organ injuries such as ventral blood vessels when setting nail.By leading
Silk is sequentially placed muscle expanded casing, selects suitable length cement reaction screw 1, and pass through seal wire for spiral shell using holder 2
Nail is screwed into centrum (the bone cement side opening 12 of screw head 11 need to be placed at bone defect).C-arm perspective confirmation screw position is good
Afterwards, installation connecting rod 3 and remaining bone cement injection device, such as connecting tube 4 and syringe 5, to bone cement be located at the wire drawing phase or at
When group's phase, the bone cement (often about 3-9ml) of appropriate volume is slowly injected under the X-ray examination of positive side position, it is good to bone defect filling
Stop bone cement injection afterwards.Connecting rod 3 and holder 2 are removed, is sewed up a wound, operation is completed.
Although specific embodiments of the present invention are described in conjunction with attached drawing above, the invention is not limited to upper
The specific embodiment stated, above-mentioned specific embodiment are only schematical, directiveness rather than restrictive.This
The those of ordinary skill in field under the enlightenment of this specification, in the feelings for not departing from scope of the claimed protection of the invention
Under condition, a variety of forms can also be made, these belong to the column of protection of the invention.
Claims (10)
1. a kind of cement reaction screw characterized by comprising sequentially connected screw head (11), screw rod (14) and spiral shell
It follows closely tail portion (16), screw rod (14) and screw tail portion (16) are internally provided with the injection runner for bone cement injection, screw head
(11) the bone cement side opening (12) being connected to the injection runner is provided on；Nail tail screw thread is provided on screw tail portion (16).
2. cement reaction screw according to claim 1, which is characterized in that the bone cement side opening (12) is at least set
Set one；When being arranged multiple, multiple bone cement side opening (12) dislocation arrangements.
3. cement reaction screw according to claim 1, which is characterized in that externally threaded outer on the screw rod (14)
Diameter is equal.
4. cement reaction screw according to claim 1, which is characterized in that external screw thread includes on the screw rod (14)
First screw thread (13) and the second screw thread (15), the major diameter of thread on the first screw thread (13) are equal, the spiral shell on the second screw thread (15)
Line outer diameter becomes larger along the first screw thread (13) end to the other end, and the thread pitch on the second screw thread 15 is less than the first screw thread 13
On thread pitch.
5. a kind of pedicle of vertebral arch bone cement injection device, it is characterised in that: including holder (2), connecting rod (3), syringe (5) and
Cement reaction screw (1) described in Claims 1-4 any one；The holder (2) is provided with operating walk way, even
Extension bar (3) is provided with injection canal；The cement reaction screw (1) is connect with holder (2) one end, connecting rod (3) one
End is protruded into the operating walk way of holder (2), and the screw tail portion (16) of connecting rod (3) end and cement reaction screw (1)
Contact；Connecting rod (3) other end is connect with syringe (5).
6. pedicle of vertebral arch bone cement injection device according to claim 5, it is characterised in that: the cement reaction screw
(1) screw tail portion (16) is internally provided with tail portion interface；
The operating walk way inner wall of described holder (2) one end is provided with the internal screw thread for being threadedly engaged connection with nail tail
(21), handle part (23) are provided on the other end；
Connecting rod (3) includes the body of rod (32), and the body of rod (32) one end is provided with the end-fitting for connecting with tail portion Interference fit
(31), the other end is provided with the pigtail connection (34) for being used for and connecting with syringe (5), close pigtail connection on the body of rod (32)
(3) bolt head (33) are provided on one end.
7. pedicle of vertebral arch bone cement injection device according to claim 6, it is characterised in that: the tail portion interface and end
Connector (31) is insertion fit structure, and relatively unrotatable after end-fitting (31) insertion tail portion interface.
8. pedicle of vertebral arch bone cement injection device according to claim 6 or 7, it is characterised in that: the tail portion interface with
The identical polygonized structure of section of end-fitting (31).
9. pedicle of vertebral arch bone cement injection device according to claim 6, it is characterised in that: the connecting rod (3) is also wrapped
The extension component for adjusting connecting rod (3) length is included, extending component includes extension rod (35) and connector (36), extension rod
(35) it is connect by connector (36) with the body of rod (32).
10. pedicle of vertebral arch bone cement injection device according to claim 6, it is characterised in that: the note of the connecting rod (3)
It is identical as the injection flow diameter of cement reaction screw (1) to penetrate channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811428941.XA CN109276303A (en) | 2018-11-27 | 2018-11-27 | Cement reaction screw and bone cement injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811428941.XA CN109276303A (en) | 2018-11-27 | 2018-11-27 | Cement reaction screw and bone cement injection device |
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| Publication Number | Publication Date |
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| CN109276303A true CN109276303A (en) | 2019-01-29 |
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ID=65173268
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811428941.XA Pending CN109276303A (en) | 2018-11-27 | 2018-11-27 | Cement reaction screw and bone cement injection device |
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| CN (1) | CN109276303A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020249442A1 (en) * | 2019-06-13 | 2020-12-17 | Medos International Sarl | Instruments for delivering bone cement to a bone screw |
| CN113143437A (en) * | 2021-04-07 | 2021-07-23 | 苏州欣荣博尔特医疗器械有限公司 | Bone cement injection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200380002Y1 (en) * | 2004-12-31 | 2005-03-25 | 지 훈 허 | Device for injecting bone cement into bone |
| US20070299450A1 (en) * | 2004-12-31 | 2007-12-27 | Ji-Hoon Her | Pedicle Screw and Device for Injecting Bone Cement into Bone |
| CN101283921A (en) * | 2008-05-29 | 2008-10-15 | 曾逸文 | Pedicle vitro restorer |
| CN102018564A (en) * | 2010-12-20 | 2011-04-20 | 常州市康辉医疗器械有限公司 | Hollow U-shaped nail device capable of being filled with bone cement |
| CN102772268A (en) * | 2012-07-03 | 2012-11-14 | 孔蓉 | Long-arm syringe |
| CN206880726U (en) * | 2016-12-08 | 2018-01-16 | 上海三友医疗器械股份有限公司 | A kind of bone cement screw and its holding instrument |
| CN209269850U (en) * | 2018-11-27 | 2019-08-20 | 西安市红会医院 | Cement reaction screw and bone cement injection device |
-
2018
- 2018-11-27 CN CN201811428941.XA patent/CN109276303A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200380002Y1 (en) * | 2004-12-31 | 2005-03-25 | 지 훈 허 | Device for injecting bone cement into bone |
| US20070299450A1 (en) * | 2004-12-31 | 2007-12-27 | Ji-Hoon Her | Pedicle Screw and Device for Injecting Bone Cement into Bone |
| CN101283921A (en) * | 2008-05-29 | 2008-10-15 | 曾逸文 | Pedicle vitro restorer |
| CN102018564A (en) * | 2010-12-20 | 2011-04-20 | 常州市康辉医疗器械有限公司 | Hollow U-shaped nail device capable of being filled with bone cement |
| CN102772268A (en) * | 2012-07-03 | 2012-11-14 | 孔蓉 | Long-arm syringe |
| CN206880726U (en) * | 2016-12-08 | 2018-01-16 | 上海三友医疗器械股份有限公司 | A kind of bone cement screw and its holding instrument |
| CN209269850U (en) * | 2018-11-27 | 2019-08-20 | 西安市红会医院 | Cement reaction screw and bone cement injection device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020249442A1 (en) * | 2019-06-13 | 2020-12-17 | Medos International Sarl | Instruments for delivering bone cement to a bone screw |
| US11660134B2 (en) | 2019-06-13 | 2023-05-30 | Medos International Sarl | Instruments and methods for delivering bone cement to a bone screw |
| CN113143437A (en) * | 2021-04-07 | 2021-07-23 | 苏州欣荣博尔特医疗器械有限公司 | Bone cement injection device |
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