CN110200690A - A kind of backbone hamulus of hamate bone - Google Patents
A kind of backbone hamulus of hamate bone Download PDFInfo
- Publication number
- CN110200690A CN110200690A CN201910550635.1A CN201910550635A CN110200690A CN 110200690 A CN110200690 A CN 110200690A CN 201910550635 A CN201910550635 A CN 201910550635A CN 110200690 A CN110200690 A CN 110200690A
- Authority
- CN
- China
- Prior art keywords
- hamulus
- bulb
- backbone
- hole
- hamate bone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- A61B17/7047—Clamps comprising opposed elements which grasp one vertebra between them
-
- 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
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
- A61B17/7064—Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
Abstract
The invention discloses a kind of backbone hamuluss of hamate bone, belong to the field of medical instrument technology.Backbone hamulus of hamate bone includes: the head of a nail, and axis is provided with through-hole；Briquetting is arranged in the through-hole；Elastic piston ring to be arranged in the through hole with the non-closed ring being open, and is located at the lower section of the briquetting；Universal ball end hook comprising bulb and hook ontology, the bulb are located at one end of the hook ontology；Wherein, the bulb is set between the briquetting and elastic piston ring and can rotate in the head of a nail, and the elastic piston ring can limit the bulb and deviate from the head of a nail.The present invention provides a kind of backbone hamulus of hamate bone, universal ball end hook Arbitrary Rotation and can be swung within a certain area, realize universal function, surgical procedure is made to be convenient for hamulus of hamate bone installation, system reset lifting and the merging of pitman.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of backbone hamulus of hamate bone.
Background technique
Currently, the clinically common fixed system in nail-stick-hook in treatment backbone regression, wound, tumour and orthomorphia
System, mainly by structure compositions such as pedicle screw, hamulus of hamate bone, metal bar and locking jackscrews.When patient vertebral body structure is abnormal or
When osteoporosis, mostly uses and be used in mixed way hamulus of hamate bone and pedicle nail structure.Substantially there are two types of types, including pedicle of vertebral arch for hamulus of hamate bone
Hook and vertebral lamina hook.Pedicle hook is fixedly secured for thoracic vertebrae, is inserted into, is snapped on pedicle of vertebral arch through Minor articulus gap；Vertebral lamina hook
For the fixation of neck, thoracolumbar vertebrae, according to the site of action in the direction of required stress and stress, vertebral lamina hook can be placed on vertebral plate
Upper limb or lower edge or be placed on transverse process.
There are following aspect deficiencies for the installation of nail-stick-hook internal fixation system hamulus of hamate bone in clinical use: by corpus vertebrae solution
The characteristic of middle vertebral plate, transverse process and pedicle of vertebral arch is cutd open it is found that vertebral plate and transverse process are close to spinous process middle line, on the inside of the pedicle of vertebral arch of two sides, vertebral plate
There is tilt angle in sagittal plane and coronal-plane relative to pedicles, leads to existing fixed hamulus of hamate bone and centrum adhesion
Difference, in art and it is postoperative easily lead to hamulus of hamate bone loosen, displacement.Pedicle of lumbar vertebral arch itself has certain flare and end to end side angle
Degree, lead to pedicle nail occurs different degrees of introversion into nail angle, and such hamulus of hamate bone and pedicle of vertebral arch head of a nail sagittal plane be not at one
In plane.
Based on the above circumstances, since existing hamulus of hamate bone does not have angle regulating function, fixed-direction is single, therefore will lead to out
Existing following situations:
One, difficult to install: it is more difficult when by pitman merging hamulus of hamate bone, therefore pre-bending pitman is needed in art, and the company of constantly regulate
The direction taken over the baton adapts to, and causes difficult to install；
Two, the abjection of hamulus of hamate bone side or centrum rupture: if pitman change is larger, not only making the reduction of pitman fatigue resistance,
Also it is easy to produce stress concentration, to be easy to happen the abjection of hamulus of hamate bone side or centrum rupture.
Three, it in the case where needing to be rotatablely connected stick, is implanted into the hamulus of hamate bone among centrum and is likely to occur loosening and with rotation
And it cuts out.These hamuluss of hamate bone typically at least need to place again once during transfer rod, increase operating time and iatrogenic injury
Add.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of backbone hamulus of hamate bone, to solve existing skill
The defect that common backbone hamulus of hamate bone does not have angular adjustment, fixed-direction single in art.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of backbone hamulus of hamate bone, comprising:
The head of a nail is provided with through-hole along axis；
Briquetting is arranged in the through-hole；
Elastic piston ring to be arranged in the through hole with the non-closed ring being open, and is located at the lower section of the briquetting；
Universal ball end hook comprising bulb and hook ontology, the bulb are located at one end of the hook ontology；
Wherein, the bulb is set between the briquetting and elastic piston ring and can rotate in the head of a nail, the elasticity
Piston ring can limit the bulb and deviate from the head of a nail.
Swivelling chute is offered on the inner wall of the elastic piston ring, the swivelling chute is spherical calotte, can be with the bulb
Surface fitting.
The inner wall of the elastic piston ring further includes cylindrical surface, and the cylindrical surface is connected to the lower edge of the swivelling chute.
Card slot is provided on the through-hole wall, the outer ring of the elastic piston ring is connected in the card slot.
The outer ring of the elastic piston ring is arranged at intervals with multiple notches.
The notch is in rectangle or zigzag.
The elastic piston ring is made of Ti-Ni alloy.
The briquetting in a ring, on the lateral wall of the briquetting be symmetrical arranged two locating slots, the locating slot with it is described
The symmetrical protrusion of two formed on through-hole wall cooperates, to prevent the briquetting from deviating from the head of a nail.
The universal ball end hook further includes neck, and the neck connects the bulb and the hook ontology, the neck
Outer diameter is less than the outer diameter of bulb.
The bulb is provided with interior plum blossom hole, interior hexagonal hole, internal square hole or star-shaped aperture far from one end of hook ontology.
One end far from the universal ball end hook of the inner wall of the through-hole is provided with internal screw thread.
Compared with prior art, the invention has the benefit that
The present invention provides a kind of backbone hamulus of hamate bone, the bulb of universal ball end hook is set between the briquetting and elastic piston ring and energy
It is enough to be rotated in the head of a nail, therefore direction is adjustable between the head of a nail and hook ontology.When placing hamulus of hamate bone, hook body part can be made to close
Suitable orientation finds best position and hooks centrum, utmostly attaches centrum, is not required to consider that the head of a nail direction of hamulus of hamate bone is excessively inclined
It will affect the problems such as setting stick, hold securely and do not have to remove many sclerotin；After hook ontology hooks centrum, since the head of a nail exists
Mobility reduces the bending of Orthopedic rod to a certain extent, provides a variety of possibilities and simplicity to operation；Hamulus of hamate bone hook ontology
Put on angle installation, reach the function of inclined body hook, realize hamulus of hamate bone multipurpose in one, simplify stock and the library in warehouse
It deposits, increases practicability and creativeness；Installation hamulus of hamate bone not only greatly reduces the generation of hook ontology problem of stress concentration itself, but also
Stick, transfer rod is set to be not easy to make the displacement of hook ontology, abjection in the process；The implantable vertebra that fixing glue can not be placed in because of centrum severe deformities
Body；For whole system, after increasing hamulus of hamate bone installation, increase the stress point of whole system, stress more disperses, uniformly.
Detailed description of the invention
Fig. 1 is the main view of backbone hamulus of hamate bone of the present invention；
Fig. 2 is the enlarged structure schematic diagram of part A in Fig. 1；
Fig. 3 is the structural schematic diagram of universal ball end hook in the present invention；
Fig. 4 is the structural schematic diagram of elastic piston ring in the present invention；
Fig. 5 is the explosive view of backbone hamulus of hamate bone of the invention.
Wherein:
1 head of a nail, 2 briquetting
3 universal ball end hook, 4 elastic piston ring
11 card slot, 12 through-hole
13 U-shaped breach, 14 groove
21 U-shaped gap, 22 locating slot
31 bulb, 32 hook ontology
34 neck of plum blossom hole in 33
41 swivelling chute, 42 notch.
Specific embodiment
With reference to the accompanying drawings of the specification and a kind of spinal bone hook of the present invention is described in detail in embodiment:
As shown in Fig. 1 ~ 5, present embodiment provides a kind of backbone hamulus of hamate bone, including the head of a nail 1, briquetting 2, elastic piston ring 4 and multi-directional ball
Head hook 3.
As shown in Figure 1, the head of a nail 1 is provided with through-hole 12 along axis, briquetting 2 is arranged in through-hole 12, and elastic piston ring 4 is setting
The non-closed ring with opening in through-hole 12, and it is located at the lower section of briquetting 2.
Universal ball end hook 3 includes bulb 31 and hook ontology 32, and bulb 31 is located at the top of hook ontology 32；Universal ball end hook 3
It further include neck 34,34 connecting ball head 31 of neck and hook ontology 32, the outer diameter of neck 34 is less than the outer diameter of bulb 31.
Bulb 31 is set between briquetting 2 and elastic piston ring 4 and can rotate in the head of a nail 1, and elastic piston ring 4 can limit
Bulb 31 deviates from the head of a nail 1.
Bulb 31 realizes that gimbal function, hook ontology 32 are to realize expected surgical application, and the structure type of hook ontology 32 is such as opened
Mouth specification, hook body segment width etc. can be needed with clinic, carry out design.Bulb 31 is provided with far from one end of hook ontology 32
Interior plum blossom hole 33, interior plum blossom hole 33 and operation tool cooperation, are inserted into interior plum blossom hole 33, to realize rotation by operation tool
Universal ball end hook 3.The operation tool cooperated in present embodiment with interior plum blossom hole 33 is upper nail device or locking wrench.On bulb 31
Hole with operation tool cooperation can also be interior hexagonal hole, internal square hole or star-shaped aperture.
In present embodiment, as shown in figs 2-4, card slot 11, the outer ring of elastic piston ring 4 are provided on the inner wall of through-hole 12
It is connected in card slot 11, to realize fixed elastic piston ring 4, and universal ball end hook 3 is avoided to deviate from the head of a nail by 4 side of elastic piston ring
1。
Two symmetrical protrusions are formed on the inner wall of through-hole 12, briquetting 2 in a ring, is symmetrical arranged on the lateral wall of briquetting 2
Two locating slots 22, two protrusions are corresponded with two locating slots 22 to be cooperated, and protrusion protrudes into locating slot 22, and protrusion can incite somebody to action
Briquetting 2 is limited in through-hole 12, so as to limit moving range of the universal ball end hook 3 in 12 axial direction of through-hole.
In present embodiment, swivelling chute 41 is offered on the inner wall of elastic piston ring 4, swivelling chute 41 is spherical calotte, can
It is bonded with 31 surface of bulb.
The inner wall of elastic piston ring 4 further includes cylindrical surface, and cylindrical surface is connected to the lower edge of swivelling chute 41, the elasticity of the structure
Piston ring 4 can realize good support to universal ball end hook 3, and the inner ring of elastic piston ring 4 can be effectively prevent to deform.
The outer ring of elastic piston ring 4 is arranged at intervals with multiple notches 42.Notch 42 is in rectangle or zigzag.Notch 42 is conducive to
The stress deformation of elastic piston ring 4 facilitates operation.
In present embodiment, elastic piston ring 4 is made of Ti-Ni alloy, and according to specific requirements, it is can be selected in elastic piston ring 4
He manufactures material.
As shown in figure 5, one end of the separate universal ball end hook 3 of the inner wall of through-hole 12 is provided with internal screw thread.
Two U-shaped breach 13 and two symmetrically arranged grooves 14,13 He of U-shaped breach are symmetrically opened up on the side wall of the head of a nail 1
Groove 14 is staggered.
Two U-shaped gap 21 are symmetrically opened up on 2 side wall of briquetting, U-shaped gap 21 and locating slot 22 are staggered.
U-shaped gap 21 and U-shaped breach 13 correspond, and edge is mutually aligned.The position of locating slot 22 and groove 14 is one by one
It is corresponding, and be located along the same line.
It, only need to be by the part of 1 outside respective slot 14 of the head of a nail to inside the head of a nail 1 when briquetting 2 is mounted on 1 inside of the head of a nail
Protrusion forms the protrusion protruded into locating slot 22, and the installation to briquetting 2 can be realized.In present embodiment, bump sizes are less than
22 inside dimension of locating slot, briquetting 2 may be implemented to move on the axis direction of through-hole 12, therefore when universal ball end hook 3 rotates
When, avoids stuck by briquetting 2, and it is smooth that when use can guarantee that hook ontology 32 rotates, and is easy to use.
The internal diameter of the unthreaded hole of through-hole 12 is not less than the diameter of bulb 31 in present embodiment.
The assembly method of backbone hamulus of hamate bone of the invention:
When assembly, elastic piston ring 4 is stuck at the neck 34 of universal ball end hook 3 by opening first, by universal ball end hook 3
Bulb 31 protrudes into through-hole 12 from the lower part of the head of a nail 1, then reduces the diameter of elastic piston ring 4, and the outer ring of elastic piston ring 4 is caught in
In the card slot 11 of the head of a nail 1, hereafter, universal ball end hook 3 is placed in the swivelling chute 41 of elastic piston ring 4.By briquetting 2 from the upper of the head of a nail 1
Portion is packed into, when locating slot 22 is opposite with grooves on two sides 14, by external force by corresponding 12 inner wall of through-hole of groove 14 internally shape
At protrusion, so that bulb 31 is limited in nail by the limitation by protrusion realization to briquetting 2, briquetting 2 and 4 collective effect of elastic piston ring
In cap 1.Since bulb 31 and the swivelling chute 41 of elastic piston ring 4 match, so universal ball end hook 3 can be any within a certain area
Angle rotation and swing, can be realized universal function.Make surgical procedure convenient for the installation of hamulus of hamate bone and makes the reset of system, lifting
And the merging operation of pitman becomes quick and easy.
The Applicant declares that the foregoing is merely a specific embodiment of the invention, but protection scope of the present invention not office
It is limited to this, it should be clear to those skilled in the art, any to belong to those skilled in the art and take off in the present invention
In the technical scope of dew, any changes or substitutions that can be easily thought of, and all of which fall within the scope of protection and disclosure of the present invention.
Claims (10)
1. a kind of backbone hamulus of hamate bone, it is characterised in that: include:
The head of a nail (1) is provided with through-hole (12) along axis；
Briquetting (2), setting is in the through-hole (12)；
Elastic piston ring (4) to be arranged in the through-hole (12) with the non-closed ring being open, and is located at the briquetting
(2) lower section；
Universal ball end hook (3) comprising bulb (31) and hook ontology (32), the bulb (31) are located at the hook ontology (32)
One end；
Wherein, the bulb (31) is set between the briquetting (2) and elastic piston ring (4) and can be in the head of a nail (1)
Rotation, the elastic piston ring (4) can limit the bulb (31) and deviate from the head of a nail (1).
2. backbone hamulus of hamate bone according to claim 1, it is characterised in that:
It is offered swivelling chute (41) on the inner wall of the elastic piston ring (4), the swivelling chute (41) is spherical calotte, can be with institute
State the fitting of bulb (31) surface.
3. backbone hamulus of hamate bone according to claim 2, it is characterised in that: the inner wall of the elastic piston ring (4) further includes cylinder
Face, the cylindrical surface are connected to the lower edge of the swivelling chute (41).
4. backbone hamulus of hamate bone according to claim 1, it is characterised in that: be provided with card slot on through-hole (12) inner wall
(11), the outer ring of the elastic piston ring (4) is connected in the card slot (11).
5. backbone hamulus of hamate bone according to claim 4, it is characterised in that: the outer ring of the elastic piston ring (4) is arranged at intervals with
Multiple notches (42).
6. backbone hamulus of hamate bone according to claim 5, it is characterised in that: the notch (42) is in rectangle or zigzag.
7. backbone hamulus of hamate bone according to claim 1, it is characterised in that: the briquetting (2) in a ring, the briquetting (2)
Two locating slots (22) are symmetrical arranged on lateral wall, two formed on the locating slot (22) and the through-hole (12) inner wall are right
The protrusion of title cooperates, to prevent the briquetting (2) from deviating from the head of a nail (1).
8. backbone hamulus of hamate bone according to claim 1, it is characterised in that: the universal ball end hook (3) further includes neck (34),
The neck (34) connects the bulb (31) and the hook ontology (32), and the outer diameter of the neck (34) is less than bulb (31)
Outer diameter.
9. backbone hamulus of hamate bone according to claim 1, it is characterised in that: the one end of the bulb (31) far from hook ontology (32)
It is provided with interior plum blossom hole (33), interior hexagonal hole, internal square hole or star-shaped aperture.
10. backbone hamulus of hamate bone according to claim 1, it is characterised in that: separate described the ten thousand of the inner wall of the through-hole (12)
One end of bulb hook (3) is provided with internal screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910550635.1A CN110200690A (en) | 2019-06-24 | 2019-06-24 | A kind of backbone hamulus of hamate bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910550635.1A CN110200690A (en) | 2019-06-24 | 2019-06-24 | A kind of backbone hamulus of hamate bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110200690A true CN110200690A (en) | 2019-09-06 |
Family
ID=67794387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910550635.1A Pending CN110200690A (en) | 2019-06-24 | 2019-06-24 | A kind of backbone hamulus of hamate bone |
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| CN (1) | CN110200690A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113876410A (en) * | 2021-12-09 | 2022-01-04 | 中国医学科学院北京协和医院 | Improved locking structure and assembly method thereof |
| CN114145828A (en) * | 2021-12-09 | 2022-03-08 | 中国医学科学院北京协和医院 | Locking structure for bone hook system and assembling method thereof |
-
2019
- 2019-06-24 CN CN201910550635.1A patent/CN110200690A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113876410A (en) * | 2021-12-09 | 2022-01-04 | 中国医学科学院北京协和医院 | Improved locking structure and assembly method thereof |
| CN114145828A (en) * | 2021-12-09 | 2022-03-08 | 中国医学科学院北京协和医院 | Locking structure for bone hook system and assembling method thereof |
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