CN114176676A - Positioning device applied to anterior cervical dentate process fracture operation - Google Patents
Positioning device applied to anterior cervical dentate process fracture operation Download PDFInfo
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- CN114176676A CN114176676A CN202111595750.4A CN202111595750A CN114176676A CN 114176676 A CN114176676 A CN 114176676A CN 202111595750 A CN202111595750 A CN 202111595750A CN 114176676 A CN114176676 A CN 114176676A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000001356 surgical procedure Methods 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 15
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012937 correction Methods 0.000 abstract description 2
- 230000000926 neurological effect Effects 0.000 abstract 1
- 230000002792 vascular Effects 0.000 abstract 1
- 210000004872 soft tissue Anatomy 0.000 description 14
- 210000004204 blood vessel Anatomy 0.000 description 7
- 238000005553 drilling Methods 0.000 description 6
- 210000005036 nerve Anatomy 0.000 description 6
- 210000000988 bone and bone Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 206010052904 Musculoskeletal stiffness Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 206010028570 Myelopathy Diseases 0.000 description 1
- 206010028836 Neck pain Diseases 0.000 description 1
- 208000028389 Nerve injury Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 206010069689 Spinal column injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 208000027905 limb weakness Diseases 0.000 description 1
- 231100000861 limb weakness Toxicity 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008764 nerve damage Effects 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
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- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
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Abstract
The application relates to a positioning device applied to anterior cervical dentate process fracture surgery, which belongs to the field of fracture correction surgical instruments and comprises a traction component and a guide component; the traction assembly comprises a base used for being mounted on the neck of a patient, a traction piece is mounted on the base, the traction piece comprises a fixed part and two movable parts, and the movable parts can move relative to the fixed part to change the distance between the two movable parts; the guide assembly comprises a guide seat, the guide seat is located between the two movable parts and connected with the fixed part, a screw guide groove is formed in the guide seat in a penetrating mode, a needle sleeve is arranged in the screw guide groove, a needle hole is formed in the needle sleeve, and the needle sleeve is detachably matched with the guide seat. The application has the effect of reducing the risk of vascular and neurological damage during surgery.
Description
Technical Field
The application relates to the field of fracture correction surgical instruments, in particular to a positioning device applied to anterior cervical dentate process fracture surgery.
Background
The dentate apophysis fracture is a common cervical vertebra injury, and is easy to cause the dentate apophysis fracture when accidents such as traffic accidents, high falling, flat ground falling and the like occur. The most common symptoms of dentate process fracture are occipital neck pain, neck stiffness, limited movement, unstable head and neck, and forced posture. Patients often hold their heads with their hands, and some patients may develop limb weakness, lower limb stiffness, etc., or delayed myelopathy.
At present, when treating dentate process fracture, an anterior dentate convex screw fixing operation mode is adopted, and the operation mode is to drill holes on the front lower edge of cervical vertebra bodies and screw in a screw with proper length so as to fix the fracture part.
The applicant believes that when drilling, in order to avoid injuring nerves and blood vessels, traction forceps are needed to pull the soft tissues on two sides of the operation incision, but the vibration during the drilling process can cause the traction forceps to slide off, so that the soft tissues are rolled by a drill bit, and the nerves or the blood vessels are injured.
Disclosure of Invention
In order to reduce the risk of blood vessel and nerve damage in the operation process, the application provides a positioner who is applied to anterior cervical way dentate process fracture operation.
The application provides a be applied to positioner of anterior cervical way dentate process fracture operation adopts following technical scheme:
a positioning device applied to anterior cervical dentate process fracture surgery comprises a traction component and a guide component;
the traction assembly comprises a base used for being mounted on the neck of a patient, a traction piece is mounted on the base, the traction piece comprises a fixed part and two movable parts, and the movable parts can move relative to the fixed part to change the distance between the two movable parts;
the guide assembly comprises a guide seat, the guide seat is located between the two movable parts and connected with the fixed part, a screw guide groove is formed in the guide seat in a penetrating mode, a needle sleeve is arranged in the screw guide groove, a needle hole is formed in the needle sleeve, and the needle sleeve is detachably matched with the guide seat.
Through adopting above-mentioned technical scheme, when performing the operation again, can install the operation position at the neck with traction assembly earlier, insert two movable parts in the operation incision, then remove the movable part and make the distance increase between two movable parts in order to dial soft tissues such as blood vessel and the nerve of incision both sides, make the cervical vertebra expose, the base can play fixed effect to traction element, make traction element be difficult for droing, screw guide way and pinhole on the guide holder can lead to screw and kirschner wire respectively, the soft tissue that can not touch the incision both sides when making wear to establish kirschner wire and screw, can reduce operation in-process blood vessel and the impaired risk of nerve.
Optionally, the movable part and the fixed part are integrally formed, and the connecting position of the movable part and the fixed part can generate elastic deformation.
Through adopting above-mentioned technical scheme, only need the extrusion movable part can make the connection position produce elastic deformation in order to reduce the distance between two movable parts when the piece is pull in the installation, two movable parts can reset under the effect of internal stress after external force disappears, make the distance increase between two movable parts, the moving part depends on the characteristic of pulling piece itself to the maximum effort of soft tissue, can not damage the soft tissue because of causing too big power to the soft tissue.
Optionally, the movable part and the fixed part are in sliding fit, the fixed part is rotatably connected with a screw rod, the thread turning directions of the two ends of the screw rod are opposite, and the movable part and one end of the screw rod are in thread fit respectively.
Through adopting above-mentioned technical scheme, during rotatory screw rod, can drive the movable part through the screw rod and the screw-thread fit of movable part and remove, because the screw thread at screw rod both ends is revolved to opposite, consequently two movable parts can be close to each other or keep away from each other, can the distance between two movable parts of accurate regulation.
Optionally, a connecting rod is arranged on the guide seat, the connecting rod vertically penetrates through the fixing part, the connecting rod is in sliding fit with the fixing part, and the fixing part is provided with a limiting component used for limiting the sliding of the connecting rod.
Through adopting above-mentioned technical scheme, sliding connection pole can change the distance of guide holder and fixed part, and then changes the position of guide holder, makes the guide holder just can promote the precision of operation to the operation position.
Optionally, the connecting rod includes head rod and second connecting rod, head rod and second connecting rod all with the guide holder is articulated, spacing subassembly is including setting up first spacing seat and the spacing seat of second at the fixed part, it is connected with first adjustable ring to rotate on the first spacing seat, first adjustable ring with head rod threaded connection, what the spacing seat of second turned up is connected with the second adjustable ring, the second adjustable ring with second connecting rod screw-thread fit, at least one in first spacing seat and the spacing seat of second with can remove in order to change the distance between first spacing seat and the spacing seat of second on the fixed part.
Through adopting above-mentioned technical scheme, when the gliding distance of head rod and second connecting rod is the same, the guide holder is parallel translation, and is different when the gliding distance of head rod and second connecting rod, perhaps when only one slides, can change the inclination of guide holder, and then makes when wearing to establish k-wire and screw through the guide holder, the inclination of k-wire and screw also can change thereupon.
Optionally, the base is in an arc shape, the inner arc surface of the base is used for contacting with the neck of a patient, an insertion groove is formed in one side, adjacent to the inner arc surface, of the base, and the fixing portion is in insertion fit with the insertion groove.
Through adopting above-mentioned technical scheme, can install traction portion in operation incision department earlier when using, then install the base again, make the grafting of base insert and aim at the fixed part and then further fix traction portion, it is comparatively convenient to use.
Optionally, the outer surface of the fixing portion is provided with a limiting block, and a limiting groove matched with the limiting block is arranged in the insertion groove.
Through adopting above-mentioned technical scheme, the position of fixed part can further be restricted in the cooperation of spacing groove and stopper, and then makes the stability of whole traction portion better.
Optionally, one end of the needle sleeve is provided with a retaining ring, and the retaining ring is used for contacting with the end face of the guide seat.
Through adopting above-mentioned technical scheme, when inserting the needle cover into the screw guide way, the fender ring can carry on spacingly to the needle cover, avoids the needle cover to insert too deeply, can avoid the needle cover to slide in the operation process simultaneously, and operation stability is better.
Optionally, a guide groove is formed in an end face of one end, close to the baffle ring, of the needle sleeve, the guide groove is conical, and a conical tip of the guide groove is communicated with the needle hole.
Through adopting above-mentioned technical scheme, when inserting the kirschner wire in the pinhole, the guide way can lead to the kirschner wire, makes the kirschner wire enter into the pinhole more easily, and it is comparatively convenient to use.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1 of the present application;
FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;
FIG. 3 is a cross-sectional schematic view of the draft assembly of FIG. 1;
FIG. 4 is an exploded view of the steering assembly of FIG. 3;
FIG. 5 is a cross-sectional view of the first position-limiting seat and the first adjusting ring shown in FIG. 3;
FIG. 6 is a cross-sectional view of the second position-limiting seat and the second adjusting ring shown in FIG. 3;
FIG. 7 is a schematic perspective view of embodiment 2 of the present application;
fig. 8 is a schematic view of the construction of the tow assembly of fig. 7.
Description of reference numerals: 1. a traction assembly; 11. a base; 12. a fixed part; 13. a movable portion; 14. inserting grooves; 15. a limiting block; 16. a limiting groove; 2. a guide assembly; 21. a screw guide groove; 22. a needle sleeve; 23. a pinhole; 24. a baffle ring; 25. a guide groove; 26. a liquid guide groove; 27. a guide seat; 3. a first connecting rod; 4. a second connecting rod; 5. a limiting component; 51. a first limiting seat; 52. a second limiting seat; 53. a first adjusting ring; 54. a second adjusting ring; 55. a flange; 56. a convex ring; 6. a chute; 9. a screw.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
The embodiment of the application discloses a positioning device applied to anterior cervical dentate process fracture surgery.
Example 1:
referring to fig. 1, a positioning device applied to anterior cervical dentate process fracture surgery comprises a traction assembly 1 and a guide assembly 2, wherein the traction assembly 1 comprises a base 11 and a traction piece, the traction piece is used for retracting soft tissues on two sides of an incision in the surgery, the base 11 is used for fixing the traction piece so as to reduce the risk that the traction piece falls off in the surgery, and the guide assembly 2 is arranged on the traction piece and is used for guiding kirschner wires and screws in the surgery.
The traction piece is integrally formed by bending a whole metal plate, and comprises a fixed part 12 and movable parts 13 positioned on two sides of the fixed part 12, wherein the fixed part 12 and the movable parts 13 have elasticity, and the movable parts 13 can be elastically deformed when the two movable parts 13 are pressed, so that the distance between the two movable parts 13 is changed. When the bone grafting instrument is used, the two movable parts 13 are firstly squeezed to enable the two movable parts 13 to be close to each other, then the two movable parts 13 are simultaneously inserted into an incision of an operation, when external force to the movable parts 13 is removed, the movable parts 13 are reset under the action of internal stress, soft tissues such as blood vessels, nerves and the like of the two incisions are poked, and a bone area to be operated is exposed.
The force of the movable part 13 on the soft tissue depends on the characteristics of the traction element itself, and the elastic coefficient, thickness, material and initial distance in the two movable part 13 supports of the traction element all influence the force of the movable part 13 on the soft tissue. In the process of actual operation, can choose suitable traction piece for use according to the demand to guarantee that interactive portion can not cause great damage to the soft tissue when stirring the soft tissue.
Referring to fig. 2, the base 11 is arc-shaped and is used for being sleeved on the annular neck, the inner arc surface of the base 11 is used for contacting with the neck of a patient, and one side of the base 11 adjacent to the inner arc surface is provided with an insertion groove 14. After the traction piece is arranged at the incision part of the operation, the base 11 is sleeved on the annular neck, and the base 11 is slid along the cervical vertebra until the fixing part 12 is inserted in the insertion groove 14, so that the traction piece is limited.
In order to further limit the movement of the traction piece, the outer surface of the fixing part 12 is provided with a limit block 15, a limit groove 16 matched with the limit block 15 is arranged in the insertion groove 14, and when the fixing part 12 is inserted in the insertion groove 14, the insertion block is inserted in the limit groove 16.
Referring to fig. 3 and 4, the guide assembly 2 includes a guide seat 27, the guide seat 27 is located between the two movable portions 13 and connected to the fixed portion 12, the guide seat 27 is cylindrical, a screw guide groove 21 is formed in the guide seat 27 along the axis in a penetrating manner, a needle sleeve 22 is inserted in the screw guide groove 21 in a sliding manner, and a needle hole 23 is formed in the needle sleeve 22 along the axis in a penetrating manner.
During operation, firstly the needle sleeve 22 is detached from the guide seat 27, then the drill bit penetrates through the screw guide groove 21 to drill a hole in the cervical vertebra, then the needle sleeve 22 is inserted into the screw guide groove 21, the kirschner wire is inserted through the needle hole 23 in the needle sleeve 22, the pillowcase can guide the kirschner wire, finally the needle sleeve 22 is taken down, the hollow screw is inserted into the screw guide groove 21, the kirschner wire is inserted into the hollow screw, the hollow screw cannot deviate under the guiding action of the kirschner wire and the screw guide hole, and the installation precision is high.
Because the Kirschner wire has a smaller diameter which is usually only 0.5-2mm, and the diameter of the needle hole 23 is basically consistent with that of the Kirschner wire, in order to enable the Kirschner wire to be more easily inserted into the needle hole 23, the end surface of one end of the needle sleeve 22 away from the cervical vertebra is provided with a guide groove 25, the guide groove 25 is conical, the conical tip part of the guide groove 25 is communicated with the needle hole 23, when the Kirschner wire is inserted into the guide groove 25, the Kirschner wire can smoothly enter the needle hole 23 under the action of the inclined surface of the guide groove 25, and the use is more convenient.
In order to more easily control the insertion depth when the needle sleeve 22 is inserted into the screw guide groove 21, one end of the needle sleeve 22, which is far away from the cervical vertebra, is provided with a retaining ring 24, the retaining ring 24 is used for contacting with the end face of the guide seat 27, when the cervical vertebra cervical. A rubber pad is arranged on one surface of the baffle ring 24, which is used for being contacted with the guide seat 27, so that the friction force between the baffle ring 24 and the guide seat 27 is increased, and the needle sleeve 22 is not easy to rotate in the operation process.
The inner wall of the screw guide groove 21 is provided with a liquid guide groove 26 along the length direction in a penetrating manner, and when drilling, the physiological saline can be dripped into the drilling part through the liquid guide groove 26 so as to avoid the over-high temperature of the drilling part.
Referring to fig. 3 and 5, a connecting rod is disposed between the guide seat 27 and the fixing portion 12, and the fixing portion 12 is provided with a stopper assembly 5 for restricting the sliding of the connecting rod. The connecting rod includes head rod 3 and second connecting rod 4, and head rod 3 and second connecting rod 4 all transmit perpendicularly and establish at fixed part 12 to can follow length direction and fixed part 12 relative slip.
The first connecting rod 3 and the second connecting rod 4 are both hinged with the guide seat 27, the limiting assembly 5 comprises a first limiting seat 51 and a second limiting seat 52 which are arranged on the fixing part 12, a first adjusting ring 53 is rotatably connected to the first limiting seat 51, the first adjusting ring 53 is in threaded connection with the first connecting rod 3, and when the first adjusting ring 53 is rotated, the first connecting rod 3 can be driven to slide along the length direction through threaded fit; the second adjusting ring 54 is connected to the second limiting seat 52, the second adjusting ring 54 is in threaded fit with the second connecting rod 4, and when the second adjusting ring 54 is rotated, the second connecting rod 4 can be adjusted to slide along the length direction.
Referring to fig. 5 and 6, an annular flange 55 is formed on each of the first and second limiting seats 51 and 52, and grooves are provided on each of the first and second adjusting rings 53 and 54 to be fitted with the flange 55, so that when the first and second adjusting rings 53 and 54 are rotated, the first and second adjusting rings 53 and 54 themselves can only be rotated in the circumferential direction without sliding in the axial direction.
At least one of the first and second retainers 51 and 52 can move on the fixing portion 12, in this embodiment, the fixing portion 12 has a sliding groove 6 along the length direction, the second retainer 52 is slidably connected in the sliding groove 6 along the length direction of the sliding groove 6, two protruding rings 56 are provided on the second retainer 52, and the two protruding rings 56 are respectively in contact with one side of the fixing portion 12, so that the second retainer 52 cannot move along the depth direction of the sliding groove 6.
When the sliding direction and length of the first connecting rod 3 and the second connecting rod 4 are the same, the guide seat 27 can be translated; when the sliding direction and length of the first connecting rod 3 and the second connecting rod 4 are different or only one of the first connecting rod and the second connecting rod slides but the other does not slide, the first connecting rod 3 and the second connecting rod 4 and the guide seat 27 can rotate relatively, so that the inclination angle of the guide seat 27 is changed. The guide seat 27 can be adjusted according to actual requirements during operation, so that the guide seat 27 can be over against the part needing drilling and screwing.
The implementation principle of the positioning device applied to the anterior cervical dentate process fracture operation is as follows: during operation, firstly, the two movable parts 13 are squeezed to enable the two movable parts 13 to approach each other, then the two movable parts 13 are simultaneously inserted into an incision of the operation, when the external force to the movable parts 13 is removed, the movable parts 13 are reset under the action of internal stress, soft tissues such as blood vessels, nerves and the like of the two incisions are poked, and a bone area to be operated is exposed; then sleeving the base 11 on the annular neck, and sliding the base 11 along the cervical vertebra until the fixing part 12 is inserted into the insertion groove 14 to limit the traction part; the first and second adjustment rings 53 and 54 are then rotated to change the inclination and position of the guide holder 27 to enable the guide holder 27 to be aligned with the fracture region.
Example 2:
referring to fig. 7 and 8, the present embodiment is different from embodiment 1 in that the movable portion 13 and the fixed portion 12 are independent components, the fixed portion 12 and the movable portion 13 are both plate-shaped, the two movable portions 13 are perpendicular to the fixed portion 12 and can slide on the fixed portion 12, the fixed portion 12 is rotatably connected with the screw 9, the screw 9 is perpendicular to the movable portions, the thread directions of both ends of the screw 9 are opposite, and the two movable portions 13 are respectively engaged with one end of the screw 9.
When the screw 9 is rotated, the screw 9 is matched with the thread of the movable part 13 to drive the movable part 13 to slide along the length direction of the screw 9, and because the thread turning directions of the two ends of the screw 9 are opposite, the sliding directions of the two movable parts 13 are opposite and can be close to each other or be far away from each other, so that the distance between the two movable parts 13 is changed. The advantage of this embodiment is that, through rotatory screw rod 9, can the accurate control two distance between the movable part 13, and then the width that the control operation incision was dialled open, can adjust according to the actual operation condition, and the precision is higher.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a be applied to positioner of anterior cervical way dentate process fracture operation which characterized in that: comprises a traction assembly (1) and a guide assembly (2); the traction assembly (1) comprises a base (11) for being mounted on the neck of a patient, a traction piece is mounted on the base (11), the traction piece comprises a fixed part (12) and two movable parts (13), and the movable parts (13) can move relative to the fixed part (12) to change the distance between the two movable parts (13); guide assembly (2) include guide holder (27), guide holder (27) are located two between movable part (13) and with fixed part (12) are connected, run through on guide holder (27) and be formed with screw guide way (21), be provided with needle cover (22) in screw guide way (21), be formed with pinhole (23) on needle cover (22), needle cover (22) with guide holder (27) can dismantle the cooperation.
2. The positioning device applied to anterior cervical dentata fracture surgery according to claim 1, wherein: the movable part (13) and the fixed part (12) are integrally formed, and the connecting position of the movable part (13) and the fixed part (12) can generate elastic deformation.
3. The positioning device applied to anterior cervical dentata fracture surgery according to claim 1, wherein: the movable part (13) is in sliding fit with the fixed part (12), the fixed part (12) is rotatably connected with a screw rod (9), the thread turning directions of two ends of the screw rod (9) are opposite, and the movable part (13) is in threaded fit with one end of the screw rod (9) respectively.
4. The positioning device applied to anterior cervical dentate process fracture surgery according to claim 2 or 3, wherein: the guide holder (27) is provided with a connecting rod, the connecting rod vertically penetrates through the fixing part (12), the connecting rod is in sliding fit with the fixing part (12), and the fixing part (12) is provided with a limiting component (5) used for limiting the sliding of the connecting rod.
5. The positioning device for anterior cervical dentata fracture surgery according to claim 4, wherein: the connecting rods comprise a first connecting rod (3) and a second connecting rod (4), the first connecting rod (3) and the second connecting rod (4) are hinged with the guide seat (27), the limiting component (5) comprises a first limiting seat (51) and a second limiting seat (52) which are arranged on the fixing part (12), the first limiting seat (51) is rotatably connected with a first adjusting ring (53), the first adjusting ring (53) is in threaded connection with the first connecting rod (3), a second adjusting ring (54) is rotationally connected on the second limiting seat (52), the second adjusting ring (54) is in threaded fit with the second connecting rod (4), at least one of the first limiting seat (51) and the second limiting seat (52) can slide on the fixing part (12) to change the distance between the first limiting seat (51) and the second limiting seat (52).
6. The positioning device applied to anterior cervical dentata fracture surgery according to claim 1, wherein: the base (11) is arc-shaped, the inner arc surface of the base (11) is used for contacting with the neck of a patient, an insertion groove (14) is formed in one side, adjacent to the inner arc surface, of the base (11), and the fixing portion (12) is in insertion fit with the insertion groove (14).
7. The positioning device applied to anterior cervical dentata fracture surgery of claim 6, wherein: the outer surface of the fixing part (12) is provided with a limiting block (15), and a limiting groove (16) matched with the limiting block (15) is arranged in the insertion groove (14).
8. The positioning device applied to anterior cervical dentata fracture surgery according to claim 1, wherein: one end of the needle sleeve (22) is provided with a retaining ring (24), and the retaining ring (24) is used for being in contact with the end face of the guide seat (27).
9. The positioning device for anterior cervical dentata fracture surgery according to claim 8, wherein: the end face of one end, close to the baffle ring (24), of the needle sleeve (22) is provided with a guide groove (25), the guide groove (25) is conical, and the conical tip of the guide groove (25) is communicated with the needle hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111595750.4A CN114176676A (en) | 2021-12-23 | 2021-12-23 | Positioning device applied to anterior cervical dentate process fracture operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111595750.4A CN114176676A (en) | 2021-12-23 | 2021-12-23 | Positioning device applied to anterior cervical dentate process fracture operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114176676A true CN114176676A (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111595750.4A Pending CN114176676A (en) | 2021-12-23 | 2021-12-23 | Positioning device applied to anterior cervical dentate process fracture operation |
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| CN (1) | CN114176676A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120265021A1 (en) * | 2011-04-13 | 2012-10-18 | Nottmeier Eric W | Anterior Cervical Retractor System |
| CN102755188A (en) * | 2012-08-06 | 2012-10-31 | 周健 | Axis odontoid screw sighting device |
| CN208693411U (en) * | 2017-09-25 | 2019-04-05 | 泰州市人民医院 | Integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck |
| CN210170156U (en) * | 2018-12-10 | 2020-03-24 | 杨建东 | Auxiliary guide device for placing hollow screw in anterior cervical path for dentate process fracture |
| CN211484718U (en) * | 2019-12-05 | 2020-09-15 | 中国人民解放军陆军第九四八医院 | Acetabulum soft tissue retractor |
| CN213641014U (en) * | 2020-10-27 | 2021-07-09 | 广州医科大学附属第三医院（广州重症孕产妇救治中心、广州柔济医院） | Soft tissue poking device for operation |
-
2021
- 2021-12-23 CN CN202111595750.4A patent/CN114176676A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120265021A1 (en) * | 2011-04-13 | 2012-10-18 | Nottmeier Eric W | Anterior Cervical Retractor System |
| CN102755188A (en) * | 2012-08-06 | 2012-10-31 | 周健 | Axis odontoid screw sighting device |
| CN208693411U (en) * | 2017-09-25 | 2019-04-05 | 泰州市人民医院 | Integrated auxiliary fixing device for 2 odontoid fracture anterior approach of neck |
| CN210170156U (en) * | 2018-12-10 | 2020-03-24 | 杨建东 | Auxiliary guide device for placing hollow screw in anterior cervical path for dentate process fracture |
| CN211484718U (en) * | 2019-12-05 | 2020-09-15 | 中国人民解放军陆军第九四八医院 | Acetabulum soft tissue retractor |
| CN213641014U (en) * | 2020-10-27 | 2021-07-09 | 广州医科大学附属第三医院（广州重症孕产妇救治中心、广州柔济医院） | Soft tissue poking device for operation |
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