CN109009399B - Accurate positioner of hollow nail of femoral neck fracture - Google Patents
Accurate positioner of hollow nail of femoral neck fracture Download PDFInfo
- Publication number
- CN109009399B CN109009399B CN201810633312.4A CN201810633312A CN109009399B CN 109009399 B CN109009399 B CN 109009399B CN 201810633312 A CN201810633312 A CN 201810633312A CN 109009399 B CN109009399 B CN 109009399B
- Authority
- CN
- China
- Prior art keywords
- femoral neck
- vertical
- main body
- cylindrical main
- translation mechanism
- 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.)
- Active
Links
Images
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
- A61B17/8897—Guide wires or guide pins
-
- 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
-
- 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
- A61B17/90—Guides therefor
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses an accurate positioning device for a hollow nail for femoral neck fracture, wherein a three-dimensional adjusting frame is arranged on a clamping component and is provided with a pair of universal joints; the universal joint comprises a universal shaft inner ball body and an inner ball body locking pin which are matched and sleeved together, a femoral neck central guide pipe is arranged in the inner ball body shaft holes of the left universal joint and the right universal joint in a penetrating way, a rotary positioner is sleeved on the femoral neck central guide pipe, and a central mounting hole of the rotary positioner is sleeved on the outer side of the guide pipe and can freely rotate; the cylindrical main body is provided with intramedullary nail guide holes which are parallel to the axis and penetrate through the center of the cylindrical main body at the peripheral positions of the central mounting hole. According to the invention, an additional fixing nail and a fixing frame attached to the position of the femoral neck are not required, and any angle adjustment of the femoral neck central guide tube can be realized, so that the aiming success rate of the femoral neck guide pin is greatly improved under the non-invasive condition.
Description
The technical field is as follows:
the invention belongs to the field of femoral neck fracture positioning instruments, and particularly relates to a precise positioning device for a femoral neck fracture hollow nail.
Background art:
at present, the human society is aging, and fracture of femoral neck and femoral tuberosity is a common frequently-occurring disease of the old. When the screw and nail plate system is fixed for femoral neck fracture or intertrochanteric fracture, firstly, a femoral neck guide needle is driven, and the guide needle mainly controls the cervical shaft angle and the anteversion angle. At present, an accurate and simple aiming device is controlled for the neck and trunk angles of a guide pin, and the control for the front rake angle still stays on the basis of empirical judgment; in addition, when the femoral neck fracture is fixed by the hollow screw, the positions of the three guide pins need to be adjusted for many times in the operation, and the mutual parallelism is difficult to ensure, which becomes an operation difficulty. Because the femur neck has special anatomical structure, the cervical shaft angle and the anteversion angle exist on different planes, and the positions are deep and hidden, so that the positioning guide pin has certain difficulty in being correctly placed. When the internal fixation is used for treating the fracture of the femoral neck and the femoral tuberosity, a guide needle is firstly placed for positioning. Usually, the guide pin is inserted according to the clinical experience of the doctor, and after each needle insertion, the C-arm machine is required to perform fluoroscopy to check whether the guide pin is in place, but the positioning guide pin cannot be correctly inserted because the needle insertion point or the upper or lower deviation, the front rake angle and the cervical shaft angle are not well mastered.
In recent years, many scholars have designed some surgical instruments and even applied computer aided navigation systems. In the similar apparatus of design principle, the fixed point pjncture needle needs to puncture to femoral head central point, and the reduction of fracture of femoral neck fracture patient mostly needs to maintain the rotatory position in the lower limb, and this point is buried by the acetabulum at this moment, is difficult to puncture, and this point is close to abdominal cavity and femoral vascular nerve, these important tissues of easy puncture. When the conventional DSH angle guider is used, after the guide pin is drilled in the operation, if the guide pin is found to be upward or downward, the guide pin needs to be taken out, and after the guide pin is adjusted, the guide pin is drilled in again, and if the guide pin is not satisfactory, the operation needs to be repeated again. Resulting in repeated needle insertion, iatrogenic damage to the patient and radiation damage to the patient and the medical staff caused by repeated C-arm machine fluoroscopy.
The invention content is as follows:
the invention provides a precise positioning device for a hollow nail for femoral neck fracture, aiming at the problems that a guide needle of the femoral neck is required to be driven into the femoral neck firstly when the hollow nail is fixed for the femoral neck fracture, the control of the shaft angle and the anteversion angle of the guide needle is difficult and needs to be adjusted for many times when the guide needle is mainly used, and the problems that the operation is troublesome and the positioning precision is poor so as to cause the operation failure easily when the hollow nail is driven into the femoral neck fracture on the basis of the guide needle.
The technical scheme is as follows: an accurate positioning device for a hollow nail for femoral neck fracture comprises a clamping part connected with a fixed carrier, wherein a lifting translation mechanism is arranged on the clamping part, a longitudinal translation mechanism is arranged on the lifting translation mechanism, two transverse translation mechanisms are arranged on the longitudinal translation mechanism in parallel, and universal joints are respectively arranged at the tail ends of the two transverse translation mechanisms; the universal joint comprises a universal shaft inner ball body and a universal shaft outer ball shell which are matched and sleeved together, the universal shaft inner ball body is provided with a shaft hole penetrating through the center of the universal shaft inner ball body, a femoral neck center guide pipe is installed in the inner ball shaft holes of the left universal joint and the right universal joint in a penetrating manner, a rotary positioner is sleeved on the femoral neck center guide pipe and comprises a cylindrical main body, a center installation hole is formed in the axis position of the cylindrical main body, and the cylindrical main body is sleeved on the outer side of the femoral neck center guide pipe through the center installation hole and can rotate freely; the cylindrical main body is provided with hollow nail guide holes which are parallel to the axis and penetrate through the center of the cylindrical main body at the peripheral positions of the central mounting hole.
An accurate positioning device for a hollow nail for femoral neck fracture comprises a clamping part connected with a fixed carrier, wherein a lifting translation mechanism is arranged on the clamping part, a longitudinal translation mechanism is arranged on the lifting translation mechanism, two transverse translation mechanisms are arranged on the longitudinal translation mechanism in parallel, and universal joints are respectively arranged at the tail ends of the two transverse translation mechanisms; the universal joint comprises a universal shaft inner ball body and a universal shaft outer ball shell which are matched and sleeved together, the universal shaft inner ball body is provided with a shaft hole penetrating through the center of the universal shaft inner ball body, a femoral neck center guide pipe is installed in the inner ball shaft holes of the left universal joint and the right universal joint in a penetrating manner, a rotary positioner is sleeved on the femoral neck center guide pipe and comprises a cylindrical main body, a center installation hole is formed in the axis position of the cylindrical main body, and the cylindrical main body is sleeved on the outer side of the femoral neck center guide pipe through the center installation hole and can rotate freely; the cylindrical main body is provided with radial guide holes along the radial direction at the peripheral position of the central mounting hole, the radial guide holes are matched with and provided with radial sliding blocks, one side of each radial sliding block is provided with a screw hole which is parallel to the radial direction, the cylindrical main body at the position corresponding to the screw hole is provided with a mounting hole, an adjusting rod is matched and arranged in the mounting hole, one end or two ends of the adjusting rod are provided with baffle platforms to prevent the adjusting rod from being separated from the mounting hole, the middle part of the adjusting rod is provided with threads, and the middle part of. A guide scale is arranged in the middle of the outer side of the radial sliding block, a scale abdicating hole is formed in the cylindrical main body, and the guide scale penetrates out of the abdicating hole; and the radial sliding block is provided with a hollow nail guide hole which is parallel to the axis and penetrates through the axis.
The tail end of the femoral neck central guide tube is sleeved with a positioning sliding sleeve for restricting and positioning the rotating positioner.
The tail ends of the two transverse translation mechanisms are respectively provided with a locking block, each locking block is provided with a vertical hole, and the side wall of each locking block is vertically provided with a connecting rod locking pin; and a connecting rod is fixed on the outer spherical shell of the universal shaft, is arranged in the vertical hole corresponding to the locking block in a matching way and is fixed through a connecting rod locking pin.
Be located the stand upper end and be fixed with the adjusting collar, the both sides of adjusting collar are provided with vertical dovetail slide respectively, vertical translation mechanism is the vertical pole of two independent symmetries, and the inner of two independent vertical poles sets up vertical dovetail slide respectively, and vertical dovetail slide matches and installs in the vertical dovetail slide that corresponds.
The longitudinal translation mechanism comprises a longitudinal rod, two transverse sleeves on the longitudinal rod are respectively provided with a vertical dovetail sliding groove, the inner ends of the transverse rods are respectively provided with a vertical dovetail sliding block, and the vertical dovetail sliding blocks are matched and installed in the corresponding vertical dovetail sliding grooves.
The invention has the following beneficial effects: compared with the current situation that a femoral neck guide pin assembly is required to be fixed at the position of a femoral neck when the femoral neck guide pin is positioned at present, the invention does not need additional fixing nails and a fixing frame attached to the position of the femoral neck when the femoral neck guide pin is positioned, and can enable the femoral neck central guide tubes at the inner ends of the left universal joint and the right universal joint to move to the range approximately parallel to the hollow nail at the inner end of the femur by adjusting the three-dimensional frame. The ball shell outside the universal shaft and the ball body inside the universal shaft can swing at will, so that the shaft hole of the ball body inside the universal shaft is at any angle. When the left universal joint and the right universal joint are matched, the arbitrary angle adjustment of the femoral neck central guide tube can be realized by combining the adjustment of the connecting rod and the locking block. The aim of adjusting any angle of the femoral neck central guide tube in a proper range is achieved, and therefore the aiming success rate of the femoral neck guide pin is greatly improved under the non-invasive condition.
The invention adopts the femoral neck guide pin as a fixed axis, and the installation position of the hollow nail is determined by the rotation of the rotary positioner. Can always keep the hollow nail and the femoral neck guide pin in parallel state to rotate, adjust and position. Therefore, the purpose of quickly and accurately positioning the hollow nails in parallel can be realized.
According to the invention, the adjusting slide block capable of adjusting the radial distance is arranged in the rotary positioner, so that the hollow nail guide holes can be controlled to reach different radial positions, and the purposes that the hollow nail and the femoral neck guide pin are parallel and the distance between the hollow nail and the femoral neck guide pin is adjustable are realized.
Drawings
FIG. 1 is a schematic view of the installation state of the femoral neck guide pin and the femoral cannulated nail.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic cross-sectional view of the gimbal of fig. 2.
FIG. 4 is a schematic view of an end configuration of FIG. 2 employing a fixed rotary positioner.
Fig. 5 is a second schematic view of the end structure of fig. 2 using the fixed rotary positioner.
Fig. 6 is a schematic cross-sectional view of the adjustable rotary positioner of fig. 2.
In the figure, reference numeral 1 is a clamping part, 2 is a fixing sleeve, 3 is a column, 4 is a column locking pin, 5 is a longitudinal sleeve, 6 is a longitudinal rod, 7 is a longitudinal rod locking pin, 8 is a transverse sleeve, 9 is a transverse rod, 10 is a transverse rod locking pin, 11 is a locking block, 12 is a connecting rod, 13 is a connecting rod locking pin, 14 is a universal shaft outer spherical shell, 15 is a universal shaft inner spherical body, 17 is a femoral neck central guide tube, 18 is a rotary positioner main body, 19 is a central mounting hole, 20 is a fixed hollow nail guide hole, 20a is a movable hollow nail guide hole, 21 is a positioning reference ball, 22 is a radial guide hole, 23 is a radial sliding block, 24 is a screw hole, 25 is an adjusting rod, 26 is a guide scale, 27 is a scale reference line, 28 is a positioning sliding sleeve, 29 is a hollow guide pin, and 30 is a femoral neck.
The specific implementation mode is as follows:
example 1: as shown in fig. 1, when the hollow nail is used for fixing the fracture position of the femoral neck, the femoral neck guide pin needs to be positioned first, and the hollow nail needs to be kept parallel to the femoral neck guide pin. When a guide pin is driven into the existing clinical guide pin, the operation difficulty is caused by the lack of bony signs due to the control of the anteversion angle. In addition, the perspective is relatively complex in lateral position operation, the definition is poor, and much time is wasted due to the adjustment of the anteversion angle. Fracture between femoral neck and tuberosity is mostly old person, prolongs operation time greatly increased the risk to because fracture is loose, anteversion and the anteversion angle of leaning forward also cause the important reason that the postoperative screw passed out to the cutting of femoral neck. This embodiment adopts the positioner as shown in fig. 2 can realize quick accurate operation, need not to assist the fixed to human femoral neck position moreover, can shorten operation time, reduces the wound area, reduces the amount of bleeding. As can be seen from the operation mode of fig. 1, the femoral neck central guide tube can carry the rotary positioner main body to rotate a certain angle in the horizontal direction, so that the perspective requirement of an X-ray system is facilitated, the angle can be adjusted in the vertical direction, and the optimal positioning is finally achieved by recording and calculating the rotation angle and restoring and adjusting.
As shown in figure 2, the lower end of the precise positioning device for the femoral neck fracture hollow nail is provided with a clamping part 1, and the clamping part 1 is fixed on a carrier in the operation process. The carrier may be a hospital bed guard rail or an instrument holder, or other component that is fixed to the ground or wall. The holding member 1 is various in kind and mainly fixed.
The three-dimensional translation mechanism is arranged on the clamping component 1, and mainly comprises a lifting translation mechanism arranged on the clamping component 1, a longitudinal translation mechanism arranged on the lifting translation mechanism, and two transverse translation mechanisms arranged on the longitudinal translation mechanism in parallel. Specifically, a fixed sleeve is arranged on the clamping part 1, an upright post is sleeved in the fixed sleeve in a matching manner, a longitudinal sleeve is arranged at the upper end of the upright post, a longitudinal rod locking pin is vertically arranged on the side surface of the longitudinal sleeve, and a longitudinal rod of a longitudinal translation mechanism is arranged in the longitudinal sleeve in a matching manner; the longitudinal rod is provided with a transverse sleeve, the side wall of the transverse sleeve is vertically provided with a transverse rod locking pin, and a transverse rod of a transverse translation mechanism is sleeved in the transverse sleeve in a matching manner.
The tail ends of the two transverse translation mechanisms (namely the tail ends of the two parallel transverse rods) are respectively provided with a locking block 11, each locking block 11 is provided with a vertical hole, and the side wall of each locking block 11 is vertically provided with a connecting rod locking pin 13.
The universal joint shown in fig. 2 and 3 comprises a universal shaft inner ball 15 and a universal shaft outer ball shell 14 which are matched and sleeved together, a connecting rod 12 is fixed on the universal shaft outer ball shell 14, the connecting rod 12 is matched and installed in a vertical hole corresponding to the locking block 11, and the connecting rod 12 is fixed through a connecting rod locking pin 13.
The universal shaft inner ball 15 is provided with a shaft hole penetrating through the center of the universal shaft inner ball, and a femoral neck center guide pipe 17 penetrates through the shaft holes of the inner ball of the left universal joint and the inner ball of the right universal joint.
The femoral neck central guide tube 17 is sleeved with a rotary positioner, and the tail end of the femoral neck central guide tube 17 is sleeved with a positioning sliding sleeve 28 for restricting and positioning the rotary positioner and preventing the rotary positioner from moving axially.
As shown in fig. 4, the rotary positioner comprises a cylindrical main body, a central mounting hole 19 is arranged at the axial center position of the cylindrical main body, and the cylindrical main body is sleeved outside the femoral neck central guide tube 17 through the central mounting hole 19 and can freely rotate. The cylindrical body is provided with fixed hollow nail guide holes 20 which are parallel to the axis and penetrate through the periphery of the central mounting hole 19. In the embodiment, the fixed hollow nail guide holes 20 with equal radius are adopted, namely the circle center of each fixed hollow nail guide hole 20 has the same distance from the circle center of the central guide tube. The structure is simple and the operation is convenient. The type of rotational positioner used may be equipped as desired, such as a type specified by the same radius value, or a type specified by the aperture. The femoral guide needle 29 is sleeved in the femoral neck central guide tube 17, and based on the femoral neck central guide tube 17, nailing operation is performed through the guide effect of the femoral neck central guide tube 17. The hollow nail 30 is fitted in the hollow nail guide hole 20, and performs a nailing operation based on the rotary positioner.
Example 2: on the basis of embodiment 1, as shown in fig. 5, fixed hollow nail guiding holes 20 with different radiuses are adopted in this embodiment, that is, the distance from the center of each fixed hollow nail guiding hole 20 to the center of the central guiding tube is different. However, the corresponding scale is arranged at the position of each fixed hollow nail guide hole 20, so that the radial position of the fixed hollow nail guide hole 20 can be rapidly distinguished. The structure is simple and the operation is convenient. A uniform rotary positioner model may be used.
Example 3: another precise positioning device for the hollow nail for femoral neck fracture is shown in figure 2 and comprises a clamping component connected with a fixed carrier. The clamping device is characterized in that a lifting translation mechanism is arranged on the clamping component, a longitudinal translation mechanism is arranged on the lifting translation mechanism, two transverse translation mechanisms are arranged on the longitudinal translation mechanism in parallel, and universal joints are respectively arranged at the tail ends of the two transverse translation mechanisms.
As shown in FIG. 3, the universal joint comprises an inner ball body of the universal shaft and an outer ball shell of the universal shaft, the inner ball body of the universal shaft and the outer ball shell of the universal shaft are sleeved together in a matching mode, and a shaft hole penetrating through the center of the inner ball body of the universal shaft is formed in the inner ball body of the universal shaft.
A femoral neck central guide tube 17 is arranged in the inner ball shaft holes of the left universal joint and the right universal joint in a penetrating way. The femoral neck central guide tube 17 is sleeved with a rotary positioner. Referring to fig. 6, the rotary positioner comprises a cylindrical main body, a central mounting hole 19 is arranged at the axial center position of the cylindrical main body, and the cylindrical main body is sleeved outside the femoral neck central guide tube 17 through the central mounting hole 19 and can freely rotate.
The cylindrical main body is provided with a radial guide hole 22 along the radial direction at the peripheral position of the central mounting hole 19, a radial slide block 23 is arranged in the radial guide hole 22 in a matching way, one side of the radial slide block 23 is provided with a screw hole 24 parallel to the radial direction, the cylindrical main body at the position corresponding to the screw hole 24 is provided with a mounting hole, an adjusting rod 25 is arranged in the mounting hole in a matching way, one end or two ends of the adjusting rod 25 are provided with blocking platforms to prevent the adjusting rod from falling off from the mounting hole, the middle part of the adjusting rod 25 is provided with threads, and the middle.
In addition, in the embodiment, a guide scale 26 is arranged in the middle of the outer side of the radial sliding block 23, a scale abdicating hole is formed in the cylindrical main body, and the guide scale 26 penetrates out of the abdicating hole; the radial slider 23 is provided with a movable hollow nail guide hole 20a which is parallel to the axis and penetrates therethrough.
Example 4: on embodiment 1 or 2 basis, being located the stand upper end again and being fixed with the adjusting collar, the both sides of adjusting collar are provided with vertical forked tail spout respectively, the vertical pole is the vertical pole of two independent symmetries, and the inner of two independent vertical poles sets up vertical forked tail slider respectively, and vertical forked tail slider matches and installs in the vertical forked tail spout that corresponds.
Example 5: on the basis of embodiment 1 or 2, the upright 3 is arranged as two parallel uprights, so that there are two independent three-dimensional adjustment mechanisms on the same base.
Claims (6)
1. An accurate positioning device for a hollow nail for femoral neck fracture comprises a clamping part connected with a fixed carrier, wherein a lifting translation mechanism is arranged on the clamping part, a longitudinal translation mechanism is arranged on the lifting translation mechanism, two transverse translation mechanisms are arranged on the longitudinal translation mechanism in parallel, and universal joints are respectively arranged at the tail ends of the two transverse translation mechanisms; the universal joint includes spheroid in the universal shaft and the outer spherical shell of universal shaft, and both match the suit together, spheroid is provided with the shaft hole that runs through its center in the universal shaft the downthehole femoral neck center stand pipe of installing that runs through of the interior spheroid shaft of left and right universal joint, vertical translation mechanism includes the vertical pole, is provided with vertical dovetail groove respectively on two horizontal sheathes on lieing in the vertical pole, matches the horizontal pole that the cover was equipped with horizontal translation mechanism in the horizontal pole, the inner of horizontal pole sets up vertical dovetail slider respectively, and vertical dovetail slider matches and installs in the vertical dovetail groove that corresponds, characterized by: the rotary positioner is sleeved on the femoral neck central guide pipe and comprises a cylindrical main body, a central mounting hole is formed in the axis position of the cylindrical main body, and the cylindrical main body is sleeved on the outer side of the femoral neck central guide pipe through the central mounting hole and can freely rotate; the cylindrical main body is provided with hollow nail guide holes which are parallel to the axis and penetrate through the center of the cylindrical main body at the peripheral positions of the central mounting hole.
2. An accurate positioning device for a hollow nail for femoral neck fracture comprises a clamping part connected with a fixed carrier, wherein a lifting translation mechanism is arranged on the clamping part, a longitudinal translation mechanism is arranged on the lifting translation mechanism, two transverse translation mechanisms are arranged on the longitudinal translation mechanism in parallel, and universal joints are respectively arranged at the tail ends of the two transverse translation mechanisms; the universal joint includes spheroid in the universal shaft and the outer spherical shell of universal shaft, and both match the suit together, spheroid is provided with the shaft hole that runs through its center in the universal shaft the downthehole femoral neck center stand pipe of installing that runs through of the interior spheroid shaft of left and right universal joint, vertical translation mechanism includes the vertical pole, is provided with vertical dovetail groove respectively on two horizontal sheathes on lieing in the vertical pole, matches the horizontal pole that the cover was equipped with horizontal translation mechanism in the horizontal pole, the inner of horizontal pole sets up vertical dovetail slider respectively, and vertical dovetail slider matches and installs in the vertical dovetail groove that corresponds, characterized by: the rotary positioner is sleeved on the femoral neck central guide pipe and comprises a cylindrical main body, a central mounting hole is formed in the axis position of the cylindrical main body, and the cylindrical main body is sleeved on the outer side of the femoral neck central guide pipe through the central mounting hole and can freely rotate; the cylindrical main body is provided with radial guide holes along the radial direction at the peripheral position of the central mounting hole, the radial guide holes are matched with and provided with radial sliding blocks, one side of each radial sliding block is provided with a screw hole which is parallel to the radial direction, the cylindrical main body at the position corresponding to the screw hole is provided with a mounting hole, an adjusting rod is matched and arranged in the mounting hole, one end or two ends of the adjusting rod are provided with baffle platforms to prevent the adjusting rod from being separated from the mounting hole, the middle part of the adjusting rod is provided with threads, and the middle part of.
3. The precise positioning device for the hollow nail for femoral neck fracture according to claim 2, which is characterized in that: a guide scale is arranged in the middle of the outer side of the radial sliding block, a scale abdicating hole is formed in the cylindrical main body, and the guide scale penetrates out of the abdicating hole; and the radial sliding block is provided with a hollow nail guide hole which is parallel to the axis and penetrates through the axis.
4. The precise positioning device for the hollow nail for femoral neck fracture according to claim 1 or 2, which is characterized in that: the tail end of the femoral neck central guide tube is sleeved with a positioning sliding sleeve for restricting and positioning the rotating positioner.
5. The precise positioning device for the hollow nail for femoral neck fracture according to claim 1 or 2, which is characterized in that: the tail ends of the two transverse translation mechanisms are respectively provided with a locking block, each locking block is provided with a vertical hole, and the side wall of each locking block is vertically provided with a connecting rod locking pin; and a connecting rod is fixed on the outer spherical shell of the universal shaft, is arranged in the vertical hole corresponding to the locking block in a matching way and is fixed through a connecting rod locking pin.
6. The precise positioning device for the hollow nail for femoral neck fracture according to claim 1 or 2, which is characterized in that: be located the stand upper end and be fixed with the adjusting collar, the both sides of adjusting collar are provided with vertical dovetail slide respectively, vertical translation mechanism is the vertical pole of two independent symmetries, and the inner of two independent vertical poles sets up vertical dovetail slide respectively, and vertical dovetail slide matches and installs in the vertical dovetail slide that corresponds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633312.4A CN109009399B (en) | 2018-06-20 | 2018-06-20 | Accurate positioner of hollow nail of femoral neck fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633312.4A CN109009399B (en) | 2018-06-20 | 2018-06-20 | Accurate positioner of hollow nail of femoral neck fracture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109009399A CN109009399A (en) | 2018-12-18 |
| CN109009399B true CN109009399B (en) | 2020-12-11 |
Family
ID=64609771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810633312.4A Active CN109009399B (en) | 2018-06-20 | 2018-06-20 | Accurate positioner of hollow nail of femoral neck fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109009399B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110063780A (en) * | 2019-05-22 | 2019-07-30 | 陈聚伍 | Digitize neck of femur guide pin machinery guidance pointing instrumentation |
| CN111772768B (en) * | 2020-08-12 | 2024-04-12 | 邓迎生 | First-standard hollow nail minimally invasive mechanical implantation system based on femoral neck surgery central axis |
| CN117297744B (en) * | 2023-10-07 | 2024-03-29 | 中国人民解放军总医院第六医学中心 | Femur neck fracture hollow nail sighting device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293947A (en) * | 1999-10-27 | 2001-05-09 | Aap培植股份公司 | Aiming appliance of needing no near end and distance end positioning of x-ray bone marrow nail |
| CN103445853A (en) * | 2013-08-27 | 2013-12-18 | 徐兆万 | Suspension arm type odontoid guide needle sighting device |
| CN203369956U (en) * | 2013-05-28 | 2014-01-01 | 上海中医药大学附属曙光医院 | Correcting and guiding device for distal lock pin of femoral intramedullary nail |
| CN103845111A (en) * | 2014-03-19 | 2014-06-11 | 邓宇 | Femoral neck conical hollow screw guider |
| CN203915064U (en) * | 2014-05-15 | 2014-11-05 | 南华大学 | The locating platform of sight positioner |
| CN104665917A (en) * | 2015-02-15 | 2015-06-03 | 陆爱清 | Intramedullary nail entry point regulator |
| WO2017139901A1 (en) * | 2016-02-19 | 2017-08-24 | Sunnybrook Research Institute | Positioning and alignment instrument for introducing surgical devices into bone |
| CN107789050A (en) * | 2017-11-22 | 2018-03-13 | 陈立军 | Femoral interlocking nail entry point quick positioner |
| CN107961069A (en) * | 2017-12-19 | 2018-04-27 | 暨南大学 | A kind of fracture of neck of femur hollow screw inserts guider |
| CN108042199A (en) * | 2018-01-19 | 2018-05-18 | 卢乐 | A kind of orthopedic kirschner pin locating guider |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5894259B2 (en) * | 2011-04-06 | 2016-03-23 | デピュイ・シンセス・プロダクツ・インコーポレイテッド | Instrument assembly for implantation of an improved hip prosthesis and orthopedic procedure for using the same |
| CN207055542U (en) * | 2017-11-20 | 2018-03-02 | 陈聚伍 | Femoral interlocking nail distal end pointing instrumentation |
| CN207125780U (en) * | 2017-11-20 | 2018-03-23 | 陈聚伍 | 2 Multi-dimensional positioning devices of femoral interlocking nail |
-
2018
- 2018-06-20 CN CN201810633312.4A patent/CN109009399B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293947A (en) * | 1999-10-27 | 2001-05-09 | Aap培植股份公司 | Aiming appliance of needing no near end and distance end positioning of x-ray bone marrow nail |
| CN203369956U (en) * | 2013-05-28 | 2014-01-01 | 上海中医药大学附属曙光医院 | Correcting and guiding device for distal lock pin of femoral intramedullary nail |
| CN103445853A (en) * | 2013-08-27 | 2013-12-18 | 徐兆万 | Suspension arm type odontoid guide needle sighting device |
| CN103845111A (en) * | 2014-03-19 | 2014-06-11 | 邓宇 | Femoral neck conical hollow screw guider |
| CN203915064U (en) * | 2014-05-15 | 2014-11-05 | 南华大学 | The locating platform of sight positioner |
| CN104665917A (en) * | 2015-02-15 | 2015-06-03 | 陆爱清 | Intramedullary nail entry point regulator |
| WO2017139901A1 (en) * | 2016-02-19 | 2017-08-24 | Sunnybrook Research Institute | Positioning and alignment instrument for introducing surgical devices into bone |
| CN107789050A (en) * | 2017-11-22 | 2018-03-13 | 陈立军 | Femoral interlocking nail entry point quick positioner |
| CN107961069A (en) * | 2017-12-19 | 2018-04-27 | 暨南大学 | A kind of fracture of neck of femur hollow screw inserts guider |
| CN108042199A (en) * | 2018-01-19 | 2018-05-18 | 卢乐 | A kind of orthopedic kirschner pin locating guider |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109009399A (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109009399B (en) | Accurate positioner of hollow nail of femoral neck fracture | |
| CN205286512U (en) | A sight for pelvis internal fixation | |
| US20230000506A1 (en) | Percutaneous targeting device | |
| JP2003325535A (en) | Bone fastener targeting and compression/distraction device for intramedullary nail and method of use | |
| CN105708528A (en) | Intervertebral foramen puncture guide device | |
| US10603085B2 (en) | Guiding apparatus for minimally invasive pedicle screws insertion | |
| JP2014097383A (en) | Targeting device | |
| WO2013180191A1 (en) | Centering guide for surgical tool for treatment of bone fractures and surgical tool for treatment of bone fractures comprising said guide | |
| CN106691556B (en) | Fracture multidirectional reduction external fixator | |
| CN106510815A (en) | Puncture guiding device and operating table | |
| US8382758B1 (en) | Method for aligning upper extremity bones and inserting guide device | |
| CN205672061U (en) | A kind of intervertebral foramina guide device | |
| CN108478273B (en) | Pedicle screw positioning and adjusting device | |
| US20140330277A1 (en) | Surgical targeting guide | |
| CN211409323U (en) | Ball centering multidirectional adjustable rotation radius offset-minimally invasive sacroiliac screw positioning guider | |
| CN110693598B (en) | Centering multidirectional adjustable rotary radius offset-minimally invasive sacroiliac screw positioning guide device | |
| CN209404932U (en) | A kind of intramedullary nail aiming pinning bracket | |
| CN104758046B (en) | Dicyclic pivot cone cdontoid process sight | |
| CN209490078U (en) | Fracture of neck of femur hollow nail accurate-location device | |
| CN210384022U (en) | Digital femur neck guide pin mechanical navigation sighting device | |
| CN107669328B (en) | Two-point multidimensional positioning device for femoral intramedullary nail | |
| CN111870335A (en) | Kirschner wire positioning instrument for closed reduction of pelvic fracture | |
| CN208259747U (en) | A kind of guider that nerve punctures | |
| CN208541389U (en) | Femoral head rebuilds exterior fixing rack device | |
| CN207708003U (en) | Vertical adjustable fixed point is wrong to aim at the minimally invasive device of hollow nail fixation away from guide pin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |