CN203059889U - Guider for navicular bone - Google Patents
Guider for navicular bone Download PDFInfo
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- CN203059889U CN203059889U CN 201320092639 CN201320092639U CN203059889U CN 203059889 U CN203059889 U CN 203059889U CN 201320092639 CN201320092639 CN 201320092639 CN 201320092639 U CN201320092639 U CN 201320092639U CN 203059889 U CN203059889 U CN 203059889U
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- guider
- mobile pallet
- direction mobile
- guide
- pilot hole
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Abstract
The utility model discloses a guider for a navicular bone. The guider comprises a guide mechanism, a positioning mechanism, a palmar fixing mechanism and a dorsal fixing mechanism, wherein the guide mechanism comprises a guide needle guider and a guide sleeve; a plurality of guide holes are formed in the guide needle guider in a penetrating manner, and the guide sleeve can be inserted along the guide holes; a plurality of observation holes are formed in the guide needle guider in a penetrating manner; the position mechanism comprises an X-directional movable supporting plate and a Y-directional movable supporting plate, and the guide needle guider is fixed on the Y-directional movable supporting plate; the Y-directional movable supporting plate is matched with the X-directional movable supporting plate and can slide on the X-directional movable supporting plate; the palmar fixing mechanism is one palmar fixing plate, and a groove is formed inside the palmar fixing mechanism; the X-directional movable supporting plate is arranged in the groove and can move in a direction perpendicular to the moving direction of the Y-directional movable supporting plate; and the dorsal fixing mechanism is a dorsal base which is connected with the palmar fixing plate through a plurality of guide posts. The guider can improve the accuracy and the controllability of a key step of imbedding an internal fixation guide needle in a percutaneous minimally invasive internal fixation surgery for navicular bone fracture.
Description
Technical field
This utility model relates to a kind of nut bone positioner, particularly a kind of accuracy of fracture of scaphoid bone percutaneous Wicresoft internal fixation operation and nut bone guider of controllability of improving.
Background technology
Nut bone is carpal hinge, is the main cause that causes the wrist joint function obstacle.Fracture of scaphoid bone is very common clinically, accounts for 70% of fracture of the carpal bone, is the high fracture (being only second to radius far-end fracture) of incidence rate second in the fracture of upper limb, and is occurred frequently in the crowd of 20-30 year age bracket.
The traditional therapy of fracture of scaphoid bone often adopts the Gypsum Fibrosum braking and cuts internal fixation operation.Wherein, the fresh fracture of scaphoid bone that does not have displacement adopts the method majority of Gypsum Fibrosum braking can obtain healing, yet its braking time reaches 12-16 week, can cause ankylosis, influences hands, wrist functional rehabilitation.And long-time Gypsum Fibrosum braking can't be worn Gypsum Fibrosum for those and is engaged in the patient of work or some and like often being difficult to the young patient of moving accept.Another kind of Therapeutic Method cuts internal fixation operation then can damage carpal ligament, and postoperative need prolong braking, damages remaining blood vessel, increases the incidence rate of disunion and ischemic necrosis.
2008-2009, utility model people have at first carried out related basic research to compatriots' nut bone minimally-invasive treatment, and have at first reported the clinical research of adopting dorsal part approach percutaneous forcing screw internal fixation method treatment compatriots fracture of scaphoid bone.Early efficacy, patient satisfaction all are better than traditional method, but because the nut bone position is hidden, the three-dimensional configuration complexity, even veteran specialist also often needs repeatedly to attempt, carrying out X line perspective repeatedly just can finish, and nut bone waist and proximal pole are narrow and small, and the space that internal fixation screw is inserted is little, and serious forgiveness is low.Compatriots' nut bone is littler than the occidentals, and this problem is more outstanding, and free-standing exercise makes to be difficult to guarantee direction and the angle of inside-fixture accurately, occurs the fixing unreliable situation that causes disunion easily.
The utility model content
The purpose of this utility model provides a kind of nut bone guider, and it can improve the accuracy of inserting this committed step and the controllability of internal fixation guide pin in the fracture of scaphoid bone percutaneous Wicresoft internal fixation operation.
For achieving the above object, this utility model is taked following technical scheme:
A kind of nut bone guider, it comprises guiding mechanism, detent mechanism, palmar fixed mechanism and dorsal part fixed mechanism;
This guiding mechanism comprises guide pin guider and fairlead; This guide pin guider runs through and is provided with some pilot holes, and this fairlead can insert along this pilot hole; This guide pin guider runs through and is provided with some observation ports;
This detent mechanism comprises X-direction mobile pallet and Y-direction mobile pallet, and this guide pin guider is fixed on the Y-direction mobile pallet; This Y-direction mobile pallet cooperates with the X-direction mobile pallet, and can slide at the X-direction mobile pallet;
This palmar fixed mechanism is a palmar fixing head, and inside is provided with groove; This X-direction mobile pallet is located in this groove, and can move along the direction vertical with this Y-direction mobile pallet moving direction;
This dorsal part fixed mechanism is a dorsal part pedestal, is connected with this palmar fixing head by some guide pillars.
The pilot hole that arranges on the described guide pin guider is 9, be equally divided into 3 row, 3 rows, angle is 5 ° between the horizontal line at every adjacent two row pilot hole centers, every row's angle increases successively to the edge by the center for the axis of every this pilot hole of row and the angle of vertical direction, is respectively 40 °, 45 °, 50 °.
The pilot hole that arranges on the described guide pin guider is 6, be equally divided into 2 row, 3 rows, angle is 5 ° between the horizontal line at every adjacent two row pilot hole centers, every row's angle increases successively to the edge by the center for the axis of every this pilot hole of row and the angle of vertical direction, is respectively 40 °, 45 °, 50 °.
Described X-direction mobile pallet, described Y-direction mobile pallet and described palmar fixing head middle part are equipped with observation port.
Described nut bone guider also comprises a micro-adjusting mechanism, and this micro-adjusting mechanism comprises first leading screw, first guide post and second leading screw, second guide post; This first leading screw and second leading screw are furnished with first adjusting nut and second adjusting nut respectively; The relative opposite side of being located at described Y-direction mobile pallet with first guide post of this first leading screw wherein, the relative opposite side of being located at described X-direction mobile pallet with second guide post of this second leading screw; This first adjusting nut and second adjusting nut are located in the shrinkage pool of described palmar fixing head; The end of this first guide post and second guide post and described palmar fixing head flexibly connect.
Described nut bone guider also comprises a locking mechanism, this locking mechanism comprises first lock screw, pressing plate and second lock screw, and this pressing plate is located at the surface of described Y-direction mobile pallet and described guide pin guider and is fixed on the described Y-direction mobile pallet by this first lock screw; This second lock screw is located at described guide pillar place, described palmar fixing head side, is used for the position of the described guide pillar of locking.
Described dorsal part pedestal one end evenly offers several slotted holes that is used for passing bandage.
Described pilot hole internal diameter is 2mm, and the internal diameter that described fairlead inserts described pilot hole part is 1.2mm.
Described Y-direction mobile pallet is provided with twocouese marking angle, and scale range is 20 ° ~ 40 °.
Described nut bone guider adopts roentgenolucent carbon fibre material.
The beneficial effects of the utility model are: this utility model nut bone guider can position according to the fracture form; improve fixing accuracy and controllability in the fracture of scaphoid bone percutaneous Wicresoft; simultaneously; operating time is shortened greatly; mean operative time 30min, and can guarantee that patient's screw all is positioned at the nut bone long axis.In addition, this utility model nut bone guider adopts roentgenolucent carbon fibre material, just with in the operation observes.
Description of drawings
Fig. 1 is the outline drawing of this utility model nut bone guider.
Fig. 2 is the exploded view of this utility model nut bone guider.
Fig. 3 is the outline drawing of first kind of guide pin guider of this utility model nut bone guider.
Fig. 4 is the cutaway view of A-A direction among Fig. 3.
Fig. 5 is the outline drawing of second kind of guide pin guider of this utility model nut bone guider.
Fig. 6 is the cutaway view of B-B direction among Fig. 5.
The specific embodiment
Below will structure of the present utility model and the technique effect being desired to reach be described by reference to the accompanying drawings with specific embodiment, but selected embodiment is not in order to limit scope of the present utility model only for interpretation.
As shown in Figure 1, this utility model provides a kind of nut bone guider, and it comprises guiding mechanism 1, detent mechanism 2, palmar fixed mechanism 3 and dorsal part fixed mechanism 4.This nut bone guider adopts roentgenolucent carbon fibre material to make, and is convenient to be used when operation X line Real Time Observation surgery situation.
As shown in Figure 2, this guiding mechanism 1 comprises guide pin guider 11 and fairlead 12.This guide pin guider 11 runs through and is provided with some pilot holes 13, and this fairlead 12 can insert along this pilot hole 13.These pilot hole 13 internal diameters are 2mm, and the internal diameter that this fairlead 12 inserts this pilot hole part is 1.2mm, can use two kinds of specification guide pins of Φ 0.8mm and Φ 1.1mm simultaneously.This guide pin guider 11 also runs through and is provided with some observation ports 14, as offering one at the center, and offers three totally four observation ports around the center equal angles, can comprehensive observation operative site.
This detent mechanism 2 comprises X-direction mobile pallet 21 and Y-direction mobile pallet 22, and this guide pin guider 11 is fixed on the Y-direction mobile pallet 22.This Y-direction mobile pallet 22 cooperates with X-direction mobile pallet 21, and can slide at X-direction mobile pallet 21.This Y-direction mobile pallet 22 is provided with twocouese marking angle, and scale range is 20 ° ~ 40 °, and the angle that can regulate the guide pin guider makes guide pin obtain best angle by multiple regulative mode, thereby reaches requirements of operation.
This palmar fixed mechanism 3 is a palmar fixing head, and inside is provided with groove 31.This X-direction mobile pallet 21 is located in this groove, and can move along the direction vertical with this Y-direction mobile pallet moving direction.This dorsal part fixed mechanism 4 is a dorsal part pedestal, is connected with this palmar fixing head by some guide pillars 41.This dorsal part pedestal is reserved 4 installing holes, can be used for guide pillar and is connected with the palmar fixing head, and for reducing the interference of guide pillar in the operation, 2 guide pillars of actual installation also can increase or adjust guide pillar quantity as required.This dorsal part pedestal one end evenly offers the slotted hole 42 of several 8mm * 60mm, be used for passing bandage, patient's wrist is fixed on the dorsal part pedestal, make the nut bone guider in operation, can be close to the fracture hand, the change in location that the nut bone guider is whipped in operation, and keep not changing with the relative position of hands, guarantee precision and the accuracy of guide pin.
As shown in Figure 3, Figure 4, the pilot hole that arranges on first kind of guide pin guider of this utility model nut bone guider is 9, be equally divided into 3 row, 3 rows, angle theta 1 is 5 ° between the horizontal line at every adjacent two row pilot hole centers, every row's angle θ 2, θ 3, θ 4 increase successively to the edge by the center for the axis of every this pilot hole of row and the angle of vertical direction, be respectively 40 °, 45 °, 50 °, can accurately determine the guide pin position.
As Fig. 5, shown in Figure 6, the pilot hole that arranges on second kind of guide pin guider of this utility model nut bone guider is 6, be equally divided into 2 row, 3 rows, angle theta 1 ' is 5 ° between the horizontal line at every adjacent two row pilot hole centers, every row's angle θ 2 ', θ 3 ', θ 4 ' increase successively to the edge by the center for the axis of every this pilot hole of row and the angle of vertical direction, be respectively 40 °, 45 °, 50 °, can accurately determine the guide pin position.
For the ease of observing operative site, on the corresponding position of observation port on this guide pin guider, this X-direction mobile pallet 21, this Y-direction mobile pallet 22 and this palmar fixing head middle part are equipped with observation port.
Further, this nut bone guider also comprises a micro-adjusting mechanism, and this micro-adjusting mechanism comprises first leading screw 51, first guide post 52 and second leading screw 53, second guide post 54.This first leading screw 51 and second leading screw 53 are furnished with first adjusting nut 55 and second adjusting nut 56 respectively.Wherein this first leading screw 51 and first guide post, 52 relative opposite side of being located at this Y-direction mobile pallet 22, this second leading screw 53 and second guide post, 54 relative opposite side of being located at this X-direction mobile pallet 21.This first adjusting nut 55 and second adjusting nut 56 are located in the shrinkage pool of this palmar fixing head.The end of this first guide post 52 and second guide post 54 and this palmar fixing head flexibly connect.
In addition, this nut bone guider also comprises a locking mechanism, this locking mechanism comprises first lock screw 61, pressing plate 62 and second lock screw 63, this pressing plate 62 is located at the surface of this Y-direction mobile pallet 22 and this guide pin guider 11 and is fixed on this Y-direction mobile pallet 22 by this first lock screw 61, prevents that the two from producing relative rotation.This second lock screw 63 is located at this this guide pillar place, palmar fixing head side, is used for the position of this guide pillar of locking, produces relative motion to prevent palmar fixing head and dorsal part pedestal, influences the positional precision that guide pin inserts.Position adjustments good position and the height of observing hands by observation port namely lock each component locations with locking mechanism afterwards, avoid and hands generation relative displacement.
This utility model nut bone guider on the dorsal part pedestal, and uses bandage to fix patient's fracture site in use; , lock with second lock screw then to proper height by guide pillar up-down adjustment palmar fixing head; Then by the position of micro-adjusting mechanism fine setting guide pin guider, find the proper operation position, by observation port, after the judgement position is accurate, with the position of first lock screw locking guide pin guider; Then using fairlead that guide pin is imported by pilot hole undergos surgery.
Be not difficult to find that by above-mentioned advantage of the present utility model is as follows:
(1) this utility model nut bone guider can position according to the fracture form, improves fixing accuracy and controllability in the fracture of scaphoid bone percutaneous Wicresoft.
(2) this utility model nut bone guider shortens operating time greatly, mean operative time 30min, and can guarantee that patient's screw all is positioned at the nut bone long axis.
(3) verify its reliability and repeatability by preclinical study, be applied to clinical on this basis, realizing the standardization of technology, and finally promote in clinical mechanism widely, for this clinical FAQs of fracture of scaphoid bone provides a kind of comparatively perfectly Therapeutic Method.
(4) the nut bone guider adopts roentgenolucent carbon fibre material, just with in the operation observes.
This utility model is limited with described claim.But based on this, those of ordinary skill in the art can make all obvious variations or change, all should be within main spirit of the present utility model and protection domain.
Claims (10)
1. a nut bone guider is characterized in that, it comprises guiding mechanism, detent mechanism, palmar fixed mechanism and dorsal part fixed mechanism;
This guiding mechanism comprises guide pin guider and fairlead; This guide pin guider runs through and is provided with some pilot holes, and this fairlead can insert along this pilot hole; This guide pin guider runs through and is provided with some observation ports;
This detent mechanism comprises X-direction mobile pallet and Y-direction mobile pallet, and this guide pin guider is fixed on the Y-direction mobile pallet; This Y-direction mobile pallet cooperates with the X-direction mobile pallet, and can slide at the X-direction mobile pallet;
This palmar fixed mechanism is a palmar fixing head, and inside is provided with groove; This X-direction mobile pallet is located in this groove, and can move along the direction vertical with this Y-direction mobile pallet moving direction;
This dorsal part fixed mechanism is a dorsal part pedestal, is connected with this palmar fixing head by some guide pillars.
2. nut bone guider according to claim 1, it is characterized in that, the pilot hole that arranges on the described guide pin guider is 9, be equally divided into 3 row, 3 rows, angle is 5 ° between the horizontal line at every adjacent two row pilot hole centers, every row's angle increases successively to the edge by the center for the axis of every this pilot hole of row and the angle of vertical direction, is respectively 40 °, 45 °, 50 °.
3. nut bone guider according to claim 1, it is characterized in that, the pilot hole that arranges on the described guide pin guider is 6, be equally divided into 2 row, 3 rows, angle is 5 ° between the horizontal line at every adjacent two row pilot hole centers, every row's angle increases successively to the edge by the center for the axis of every this pilot hole of row and the angle of vertical direction, is respectively 40 °, 45 °, 50 °.
4. according to claim 2 or 3 described nut bone guiders, it is characterized in that described X-direction mobile pallet, described Y-direction mobile pallet and described palmar fixing head middle part are equipped with observation port.
5. according to the described nut bone guider of claim 4, it is characterized in that also comprise a micro-adjusting mechanism, this micro-adjusting mechanism comprises first leading screw, first guide post and second leading screw, second guide post; This first leading screw and second leading screw are furnished with first adjusting nut and second adjusting nut respectively; The relative opposite side of being located at described Y-direction mobile pallet with first guide post of this first leading screw wherein, the relative opposite side of being located at described X-direction mobile pallet with second guide post of this second leading screw; This first adjusting nut and second adjusting nut are located in the shrinkage pool of described palmar fixing head; The end of this first guide post and second guide post and described palmar fixing head flexibly connect.
6. according to the described nut bone guider of claim 5, it is characterized in that, also comprise a locking mechanism, this locking mechanism comprises first lock screw, pressing plate and second lock screw, and this pressing plate is located at the surface of described Y-direction mobile pallet and described guide pin guider and is fixed on the described Y-direction mobile pallet by this first lock screw; This second lock screw is located at described guide pillar place, described palmar fixing head side, is used for the position of the described guide pillar of locking.
7. according to the described nut bone guider of claim 6, it is characterized in that described dorsal part pedestal one end evenly offers several slotted holes that is used for passing bandage.
8. according to the described nut bone guider of claim 7, it is characterized in that described pilot hole internal diameter is 2mm, the internal diameter that described fairlead inserts described pilot hole part is 1.2mm.
9. described nut bone guider according to Claim 8 is characterized in that described Y-direction mobile pallet is provided with twocouese marking angle, and scale range is 20 ° ~ 40 °.
10. according to the described nut bone guider of claim 1, it is characterized in that described nut bone guider adopts roentgenolucent carbon fibre material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092639 CN203059889U (en) | 2013-02-28 | 2013-02-28 | Guider for navicular bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092639 CN203059889U (en) | 2013-02-28 | 2013-02-28 | Guider for navicular bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203059889U true CN203059889U (en) | 2013-07-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320092639 Expired - Lifetime CN203059889U (en) | 2013-02-28 | 2013-02-28 | Guider for navicular bone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203059889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103190949A (en) * | 2013-02-28 | 2013-07-10 | 陈山林 | Scaphoid guide apparatus |
| CN105726170A (en) * | 2016-02-03 | 2016-07-06 | 广州粤倍生物科技有限公司 | Individual osteosarcoma cervical vertebra prosthesis |
-
2013
- 2013-02-28 CN CN 201320092639 patent/CN203059889U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103190949A (en) * | 2013-02-28 | 2013-07-10 | 陈山林 | Scaphoid guide apparatus |
| CN105726170A (en) * | 2016-02-03 | 2016-07-06 | 广州粤倍生物科技有限公司 | Individual osteosarcoma cervical vertebra prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |