CN108852491B - Infrared navigation device for orthopedic intramedullary nail - Google Patents
Infrared navigation device for orthopedic intramedullary nail Download PDFInfo
- Publication number
- CN108852491B CN108852491B CN201810553045.XA CN201810553045A CN108852491B CN 108852491 B CN108852491 B CN 108852491B CN 201810553045 A CN201810553045 A CN 201810553045A CN 108852491 B CN108852491 B CN 108852491B
- Authority
- CN
- China
- Prior art keywords
- intramedullary nail
- guide rod
- infrared
- nail
- guide
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other 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)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides an infrared navigation device for an orthopaedic intramedullary nail, which comprises a guide rod inserted into a cavity of the intramedullary nail, wherein an infrared light source emitting infrared rays is installed at the front end of the guide rod, and a power supply line of the infrared light source extends out of the rear end of the guide rod; the outer wall of the guide rod is provided with scale marks; the slide fastener is in sliding connection with the guide rod by taking the length direction of the guide rod as a sliding direction, and the slide fastener is locked at any position of the guide rod. During the use, through the heat energy gathering department that thermal imaging system detected, the infrared ray that infrared source launches passes the locking hole on the intramedullary nail and is surveyed by the thermal imaging system, has seted up on the intramedullary nail that locking hole department is the heat energy gathering department, and the heat energy gathering department on the thermal imaging system is surveyed marks to mark department is as the department of beating into of the location nail that passes the locking hole. Compared with the traditional device, the device has simple structure and is easy to operate.
Description
Technical Field
The invention relates to the field of machinery, in particular to a navigation device for a locking hole of an intramedullary nail and an intramedullary nail system matched with the navigation device.
Background
Intramedullary nail internal fixation is widely applied as an effective means for treating fracture internal fixation, and development and production of an intramedullary nail instrument matched with the intramedullary nail internal fixation can promote the development of minimally invasive surgery and restore the physiological function of a human body, thereby having wide market prospect in the field of orthopedics. Each type of intramedullary nail instrument comprises an intramedullary nail, and an aiming positioning instrument and a universal surgical instrument which are corresponding to the intramedullary nail, wherein the instruments form an intramedullary nail positioning system.
At present, when treating long tubular fracture patient, often will use the intramedullary nail fixed fracture position, insert the bone cavity at the intramedullary nail promptly, drill the locking hole on the bone tissue, reuse locking pin links firmly bone tissue and intramedullary nail together, under the general condition, longer intramedullary nail implants the bone cavity after, because of individual physiology radian difference, it is a technical problem how to realize aiming at the position of intramedullary nail distal end locking hole, current more general intramedullary nail aiming technique has roughly three: the three technologies of limiting and aiming by a positioning rod, nailing by bare hands and positioning and aiming by magnetic force have defects.
Limiting and aiming technology of the positioning rod: the aiming rod body of the existing intramedullary nail aiming device is fixed, so that the position of a positioning through hole on the aiming rod body is also fixed, and the aiming rod body can only correspond to the position of a lock hole on an ideal intramedullary nail without deformation, therefore, under the condition that the intramedullary nail is deformed, a locking hole drilled on bone tissues through the positioning through hole does not correspond to the position of the lock hole on the intramedullary nail in a bone cavity, so that a skin incision needs to be made on the bone tissues, a positioning hole which basically forms an included angle of 90 degrees with the locking hole is drilled, then a positioning rod is inserted into the positioning hole to abut against the intramedullary nail, the deformed intramedullary nail is corrected by pushing the positioning rod, the technology needs to drill two holes on the bone tissues, a patient has to bear additional iatrogenic trauma, the operation steps of the operation are relatively complicated, in addition, if the deformation direction of the intramedullary nail is not the insertion direction of the positioning rod, the deformation of the positioning rod, the aiming device will also be misaligned in its entirety.
The technique of nailing by bare hands: the physician needs to continuously use X-rays to locate the hole in the bone tissue, and the continuous use of X-rays will generate a great deal of radiation, which will cause unnecessary radiation damage to the physician and the patient, and at the same time, the technique has high requirements on the experience of the physician.
Magnetic positioning aiming technology: the incision is needed to be made at the approximate position of the distal locking nail in advance, soft tissues such as fascia and muscle on the outer side of the bone tissue are cut and stripped sufficiently, otherwise the aiming movement of the sleeve and the drill sleeve is easily interfered, the ferromagnetic instrument is far away from the periphery of the detector, otherwise the induction intensity of the magnetic force is influenced, even the induction fails, and the whole aiming device is misaligned.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an infrared navigation device for an orthopedic intramedullary nail, which is used for solving at least one technical problem.
The invention also provides an intramedullary nail system matched with the orthopedic intramedullary nail infrared navigation device, so as to solve at least one technical problem.
The technical scheme of the invention is as follows: an infrared navigation device for an intramedullary nail in orthopedics department is characterized by comprising a guide rod inserted into a cavity of the intramedullary nail, wherein an infrared light source emitting infrared rays is installed at the front end of the guide rod, and a power supply wire of the infrared light source extends out of the rear end of the guide rod;
the outer wall of the guide rod is provided with scale marks;
the slide fastener is in sliding connection with the guide rod by taking the length direction of the guide rod as a sliding direction, and is locked at any position of the guide rod.
Through supporting use thermal imaging system, and then realize applying infrared thermal induction principle to fix a position the locking hole on the intramedullary nail, do not rely on computer imaging, it is convenient to maintain. The intramedullary nail can also be matched with a guide clamp with a temperature sensing alarm to position the locking hole on the intramedullary nail, does not depend on computer imaging, and is convenient to maintain. Simple structure, low cost and easy popularization.
Through the combination of the scale marks and the slide fastener, the distance from the infrared light source to the slide fastener is convenient to be consistent with the distance from the locking hole of the intramedullary nail to the handle. Through the sliding of the slide fastener, the detection of a plurality of locking holes which are arranged along the axial direction of the intramedullary nail is realized.
During the use, through the heat energy gathering department that thermal imaging system detected, the infrared ray that infrared source launches passes the locking hole on the intramedullary nail and is surveyed by the thermal imaging system, has seted up on the intramedullary nail that locking hole department is the heat energy gathering department, carries out the sign in the heat energy gathering department that the thermal imaging system detected to sign department is as the department of beating into of the location nail that passes the locking hole. Compared with the traditional device, the device has simple structure and is easy to operate.
Or when the intramedullary nail is used, the infrared rays emitted by the infrared light source penetrate through the locking hole on the intramedullary nail to be detected by the thermal induction alarm through the thermal induction alarm at the thermal energy gathering position detected by the thermal induction alarm, the locking hole on the intramedullary nail is the thermal energy gathering position, and the thermal energy gathering position detected by the thermal induction alarm is marked to be used as the driving position of the positioning nail penetrating through the locking hole. Compared with the traditional device, the device has simple structure and is easy to operate.
For the locking of the slider in any position of the guide bar, the locking can be performed in such a way,
the inner wall of the slide fastener is provided with an internal thread, the outer wall of the guide rod is provided with an external thread matched with the internal thread, and the slide fastener is locked on the guide rod through a thread structure.
The guide rod and the slide fastener can be locked conveniently through threads.
Or the slide fastener is locked on the guide rod through a locking mechanism;
the locking mechanism is a screw, a threaded hole in threaded connection with the screw is formed in the sliding buckle, and the sliding buckle is abutted to the outer wall of the guide rod through the screw penetrating through the threaded hole.
And further realize the locking of guide rod and thread slipping.
Also comprises a head-wearing thermal imager. Direct viewing of the heat energy accumulation position is convenient to realize, and identification is carried out at the corresponding position.
The guide pliers comprise a pliers head which is an annular body, and the central through hole of the annular body is used as an insertion hole of the positioning nail.
This patent is through optimizing the structure of guide pincers, and the sign has the heat energy gathering department counterpoint that thermal imaging system detected on patchhole and the limbs, is convenient for realize the improvement to the counterpoint nature of putting into of location nail.
A positioning nail guide cone is mounted on the inner wall of the binding clip, a hollow channel is arranged in the positioning nail guide cone, and the hollow channel is a positioning nail insertion hole;
the locating nail guide cone contacts the human body side and installs a temperature-sensing alarm, the temperature-sensing alarm includes a temperature sensor, single chip microcomputer system and an alarm, temperature sensor connects single chip microcomputer system, single chip microcomputer system connects the alarm.
The skin is cut at the periphery of the approximate area of the locking hole, so that the end part of the guide cone of the positioning nail can be conveniently contacted with the human bone, the temperature sensing alarm can give an alarm according to the sensed temperature, when the contacted temperature is at the set alarm temperature, and the alarm position is the position needing punching.
The outer wall of the positioning nail guide cone is in threaded connection with the inner wall of the tong head.
Or the outer wall of the binding clip is provided with a threaded hole for inserting the positioning screw rod, and the end part of the positioning screw rod is abutted against the positioning nail guide cone. And then the positioning guide cone and the binding clip are relatively fixed.
The guide pincers include that two pincers arms that rotate to connect link to each other the pincers body that constitutes, and the front end of two pincers arms all can be dismantled with the binding clip and be connected.
The change of the binding clip of different specifications is convenient for realize, realizes different demands.
The guide pole includes a metal forming hose, the power supply line is worn to establish metal forming hose's inside and stretch out from the rear end. The structure of the guide rod is optimized, fine adjustment of the bending degree of the guide rod is facilitated, and the intramedullary nail bending guide rod is suitable for the bending condition of the inner cavity of the intramedullary nail.
The infrared light source comprises at least three infrared emission heads, and each infrared emission head is connected with the power supply system through a control switch.
The number of the infrared emission heads can be conveniently controlled by controlling the opening number of the switch, so that the overall brightness of the infrared light source can be regulated.
The inner wall of the intramedullary nail is coated with an absorption layer which absorbs infrared light. So as to ensure that heat energy is gathered at the locking hole.
The inner wall of the intramedullary nail is coated with a reflective coating. So as to ensure that heat energy is gathered at the locking hole.
An intramedullary nail system matched with an orthopedic intramedullary nail infrared navigation device comprises an intramedullary nail, wherein a locking hole is formed in the intramedullary nail; is characterized by also comprising the orthopedic intramedullary nail infrared navigation device;
when the intramedullary nail is combined, the guide rod is inserted into a cavity of the intramedullary nail, and the infrared light source is arranged on the inner side of the intramedullary nail provided with the locking hole;
the slide fastener and the power supply line are arranged outside the intramedullary nail.
The combination of the intramedullary nail and the infrared light emitting function is convenient to realize.
Drawings
FIG. 1 is a schematic view of a guide bar according to the present invention;
FIG. 2 is a schematic view of the guide rod of the present invention inserted into the intramedullary nail cavity;
FIG. 3 is a schematic view of a guide clamp according to the present invention;
FIG. 4 is a schematic view of another embodiment of the guide clamp of the present invention;
FIG. 5 is a schematic structural view of a jawarm of the present invention;
FIG. 6 is a schematic view of another embodiment of the guide clamp of the present invention;
fig. 7 is a partial cross-sectional view of the intramedullary nail of the present invention with locking holes.
In the figure: the nail-fixing device comprises an infrared light source 1, a guide rod 2, a scale mark 3, a slide fastener 4, an intramedullary nail 5, a locking hole 7, an annular body 8, a clamp body 9, a right fixing rod 10, a right nut 11, a rotating rod 12, a locking hole 13, a reflecting cover 14 and a positioning nail guide cone 15.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, 2, 3, 4 and 5, an infrared navigation device for an intramedullary nail in orthopedics department comprises a guide rod 2 inserted into a cavity of the intramedullary nail 5, wherein an infrared light source 1 emitting infrared rays is installed at the front end of the guide rod 2, and a power supply wire of the infrared light source 1 extends out of the rear end of the guide rod 2; the outer wall of the guide rod 2 is provided with scale marks 3; the slide fastener is characterized by further comprising a slide fastener 4, the slide fastener 4 is connected with the guide rod 2 in a sliding mode by taking the length direction of the guide rod 2 as the sliding direction, and the slide fastener is locked at any position of the guide rod. Through the combination of infrared light source 1 and thermal imager, and then realize utilizing infrared thermal induction principle to fix a position locking hole 7 on the intramedullary nail 5, also can join in marriage the guide pincers that have a temperature-sensing alarm, fix a position the locking hole on the intramedullary nail, do not rely on computer imaging, it is convenient to maintain. The imaging of a computer is not depended on, and the maintenance is convenient. Simple structure, low cost and easy popularization. Through the combination of the scale marks 3 and the slide fastener 4, the distance from the infrared light source 1 to the slide fastener 4 is convenient to be consistent with the distance from the locking hole 7 of the intramedullary nail 5 to the handle. By the sliding of the slider 4, the detection of a plurality of locking holes 7 arranged axially along the intramedullary nail 5 is achieved.
During the use, through the heat energy gathering department that the thermal imaging system detected, the infrared ray that infrared light source 1 launches passes locking hole 7 on the intramedullary nail 5 and is surveyed by the thermal imaging system, has seted up locking hole 7 on the intramedullary nail 5 and has been located for the heat energy gathering department, and the heat energy gathering department on the thermal imaging system is surveyed marks to mark department is as the department of beating into of the locating pin that passes locking hole 7. Compared with the traditional device, the device has simple structure and is easy to operate.
Or when the intramedullary nail is used, the infrared rays emitted by the infrared light source penetrate through the locking hole on the intramedullary nail to be detected by the thermal induction alarm through the thermal induction alarm at the thermal energy gathering position detected by the thermal induction alarm, the locking hole on the intramedullary nail is the thermal energy gathering position, and the thermal energy gathering position detected by the thermal induction alarm is marked to be used as the driving position of the positioning nail penetrating through the locking hole. Compared with the traditional device, the device has simple structure and is easy to operate.
With respect to how the slider is locked at any position of the guide bar, the following two methods can be adopted:
in the first mode, the inner wall of the slide fastener is provided with an internal thread, the outer wall of the guide rod is provided with an external thread matched with the internal thread, and the slide fastener is locked on the guide rod through a thread structure. The guide rod and the slide fastener can be locked conveniently through threads.
In the second mode, the slide fastener is locked on the guide rod through a locking mechanism; the locking mechanism is a screw, a threaded hole for connecting the screw in a threaded manner is formed in the slide fastener, and the slide fastener is abutted against the outer wall of the guide rod through the screw penetrating through the threaded hole. And further realize the locking of guide rod and thread slipping.
The interior of the guide rod is provided with a passage for the electric supply line of the infrared light source to pass through. The power supply line of the infrared light source can conveniently penetrate through the channel, and the power supply line is protected.
Also comprises a head-wearing thermal imager. Direct viewing of the heat energy accumulation position is convenient to realize, and identification is carried out at the corresponding position.
Referring to fig. 3, the nail-inserting device further comprises a guiding clamp for guiding the inserting direction of the positioning nail, wherein the guiding clamp comprises a clamp head, the clamp head is an annular body 8, and a central through hole of the annular body 8 is used as an inserting hole of the positioning nail. This patent is through optimizing the structure of guide pincers, and the sign has the heat energy gathering department counterpoint that thermal imaging system detected on patchhole and the limbs, is convenient for realize the improvement to the counterpoint nature of putting into of location nail. The guide clamp comprises a clamp body 9 formed by connecting two clamp arms which are rotatably connected, and the front ends of the two clamp arms are detachably connected with the clamp head. The change of the binding clip of different specifications is convenient for realize, realizes different demands.
The inner wall of the binding clip is provided with a positioning nail guide cone, a hollow channel is arranged in the positioning nail guide cone, and the hollow channel is a positioning nail insertion hole; the side, contacting the human body, of the positioning nail guide cone is provided with a temperature sensing alarm, the temperature sensing alarm comprises a temperature sensor, a single chip microcomputer system and an alarm, the temperature sensor is connected with the single chip microcomputer system, and the single chip microcomputer system is connected with the alarm. The skin is cut at the periphery of the approximate area of the locking hole, so that the end part of the guide cone of the positioning nail can be conveniently contacted with the human bone, the temperature sensing alarm can give an alarm according to the sensed temperature, when the contacted temperature is at the set alarm temperature, and the alarm position is the position needing punching.
The outer wall of the positioning nail guide cone 15 is in threaded connection with the inner wall of the binding clip. Or the outer wall of the binding clip is provided with a threaded hole for inserting the positioning screw rod, and the end part of the positioning screw rod is abutted against the positioning nail guide cone. And then the positioning guide cone and the binding clip are relatively fixed.
In order to further ensure that the annular bodies on the two forceps arms are positioned on the same straight line in the mutual rotation process of the forceps arms, the following design optimization can be carried out:
referring to fig. 4 and 5, the guiding clamp includes a clamp body formed by connecting two clamp arms which are rotatably connected, the two clamp arms are respectively a left clamp arm and a right clamp arm, the ring bodies are respectively a left ring body connected with the left clamp arm and a right ring body connected with the right clamp arm, and the front end of the left forearm is rotatably connected with a left ring body through a rotating shaft; the front end of the right forearm and the right ring body rotate through another rotating shaft; the rear end of the right ring body is connected with a right fixing rod 10, the rear end of the right fixing rod 10 is connected with a right nut 11, the rear end of the left ring body is connected with a left fixing rod, and the rear end of the left fixing rod is connected with a left nut; still include with the equal threaded connection's of left nut, right nut rotary rod 12, the left end of rotary rod 12 be equipped with left nut assorted left external screw thread, the right-hand member of rotary rod 12 be equipped with right nut 11 assorted right external screw thread, the screw thread opposite direction of left external screw thread and right external screw thread. Be convenient for through the rotation of rotary rod, and then realize the adjustment of interval between left ring body and the right ring body, and the central axis between them is in same straight line.
For the structure of the guide rod, the following scheme can be adopted:
scheme one, guide pole 2 includes a metal forming hose, and the power supply line is worn to establish in the inside of metal forming hose and is stretched out from the rear end. The bending degree of the guide rod 2 can be finely adjusted conveniently by optimizing the structure of the guide rod 2, so that the intramedullary nail is suitable for the condition that the inner cavity of the intramedullary nail 5 is bent.
And the guide rod comprises a rod body made of a metal shaping hose, and at least three reinforcing ribs formed by twisting metal wires are embedded in the rod body. The bending degree of the guide rod 2 can be finely adjusted conveniently by optimizing the structure of the guide rod 2, so that the intramedullary nail is suitable for the condition that the inner cavity of the intramedullary nail 5 is bent.
For infrared light sources, the following scheme can be adopted:
according to the first scheme, the infrared light source 1 comprises at least three infrared emission heads, and each infrared emission head is connected with the power supply system through a control switch. The number of the infrared emission heads can be conveniently controlled by controlling the opening number of the switch, so that the overall brightness of the infrared light source 1 can be regulated.
And in the second scheme, the infrared light source 1 comprises an infrared light emitting diode, the infrared light emitting diode and a PWM controller, and the electric energy input end of the PWM controller is connected with a power supply circuit. The brightness of the infrared light-emitting diode can be conveniently controlled through the PWM signal output by the PWM controller.
For optimizing the structure of the intramedullary nail and improving the positioning effect of the locking hole, the following scheme can be adopted:
the inner wall of the intramedullary nail 5 is coated with an absorbing layer which absorbs infrared light. In order to ensure that heat energy is concentrated at the locking hole 7. Alternatively, the inner wall of the intramedullary nail 5 is coated with a reflective coating. In order to ensure that heat energy is concentrated at the locking hole 7.
An intramedullary nail system matched with an orthopedic intramedullary nail infrared navigation device comprises the orthopedic intramedullary nail infrared navigation device and an intramedullary nail, wherein the orthopedic intramedullary nail infrared navigation device comprises a guide rod 2 inserted into a cavity of the intramedullary nail, an infrared light source emitting infrared rays is installed at the front end of the guide rod 2, and a power supply line of the infrared light source extends out of the rear end of the guide rod 2; the outer wall of the guide rod 2 is provided with scale marks; the sliding buckle 4 is in sliding connection with the guide rod 2 by taking the length direction of the guide rod 2 as a sliding direction, and the sliding buckle 4 is locked at any position of the guide rod 2; when the intramedullary nail is combined, the guide rod 2 is inserted into a cavity of the intramedullary nail, and the infrared light source is arranged at the inner side of the intramedullary nail provided with the locking hole; the slider 4 and the power supply line are arranged outside the intramedullary nail. The combination of the intramedullary nail and the infrared light emitting function is convenient to realize.
Referring to fig. 7, a conical reflector 14 is fixed on the inner side of the intramedullary nail with the locking hole 13, and the inner diameter of the conical reflector 14 gradually increases from the outside to the inside along the radial direction of the intramedullary nail. The inner wall of the conical reflector is electroplated with a metal reflecting layer. The conical reflecting cover is added, so that light emitted by the infrared light source can be condensed and emitted conveniently, and the light source convergence effect at the locking hole is improved. In addition, the deviation rectifying effect when the positioning nail is driven in can be realized through the conical reflecting cover. The nail is convenient to penetrate through the locking holes on the two sides of the intramedullary nail when the same positioning nail is driven.
Also comprises a head-wearing thermal imager. Direct viewing of the heat energy accumulation position is convenient to realize, and identification is carried out at the corresponding position.
The guide pliers comprise a head which is an annular body, and the central through hole of the annular body is used as an insertion hole of the positioning nail. This patent is through optimizing the structure of guide pincers, and the sign has the heat energy gathering department counterpoint that thermal imaging system detected on patchhole and the limbs, is convenient for realize the improvement to the counterpoint nature of putting into of location nail. The guide pincers include that two pincers arms that rotate to connect link to each other the pincers body that constitutes, and the front end of two pincers arms all can be dismantled with the binding clip and be connected. The change of the binding clip of different specifications is convenient for realize, realizes different demands.
The inner wall of the binding clip is provided with a positioning nail guide cone, a hollow channel is arranged in the positioning nail guide cone, and the hollow channel is a positioning nail insertion hole; the side, contacting the human body, of the positioning nail guide cone is provided with a temperature sensing alarm, the temperature sensing alarm comprises a temperature sensor, a single chip microcomputer system and an alarm, the temperature sensor is connected with the single chip microcomputer system, and the single chip microcomputer system is connected with the alarm. The skin is cut at the periphery of the approximate area of the locking hole, so that the end part of the guide cone of the positioning nail can be conveniently contacted with the human bone, the temperature sensing alarm can give an alarm according to the sensed temperature, when the contacted temperature is at the set alarm temperature, and the alarm position is the position needing punching.
The outer wall of the positioning nail guide cone is in threaded connection with the inner wall of the tong head. Or the outer wall of the binding clip is provided with a threaded hole for inserting the positioning screw rod, and the end part of the positioning screw rod is abutted against the positioning nail guide cone. And then the positioning guide cone and the binding clip are relatively fixed.
In order to further ensure that the annular bodies on the two forceps arms are positioned on the same straight line in the mutual rotation process of the forceps arms, the following design optimization can be carried out:
the guide clamp comprises a clamp body formed by connecting two clamp arms which are rotatably connected, the two clamp arms are respectively a left clamp arm and a right clamp arm, the ring bodies are respectively a left ring body connected with the left clamp arm and a right ring body connected with the right clamp arm, and the front end of the left forearm is rotatably connected with the left ring body through a rotating shaft; the front end of the right forearm and the right ring body rotate through another rotating shaft; the rear end of the right ring body is connected with a right fixing rod, the rear end of the right fixing rod is connected with a right nut, the rear end of the left ring body is connected with a left fixing rod, and the rear end of the left fixing rod is connected with a left nut; still include with the equal threaded connection's of left nut, right nut rotary rod, the left end of rotary rod be equipped with left nut assorted left external screw thread, the right-hand member of rotary rod be equipped with right nut assorted right external screw thread, the screw thread opposite direction of left external screw thread and right external screw thread. Be convenient for through the rotation of rotary rod, and then realize the adjustment of interval between left ring body and the right ring body, and the central axis between them is in same straight line.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (9)
1. An infrared navigation device for an intramedullary nail in orthopedics department is characterized by comprising a guide rod inserted into a cavity of the intramedullary nail, wherein an infrared light source emitting infrared rays is installed at the front end of the guide rod, and a power supply wire of the infrared light source extends out of the rear end of the guide rod;
the outer wall of the guide rod is provided with scale marks;
the slide fastener is in sliding connection with the guide rod by taking the length direction of the guide rod as a sliding direction, and is locked at any position of the guide rod;
the guide pliers comprise a pliers head, wherein the pliers head is an annular body, and a central through hole of the annular body is used as an insertion hole of the positioning nail;
a positioning nail guide cone is mounted on the inner wall of the binding clip, a hollow channel is arranged in the positioning nail guide cone, and the hollow channel is a positioning nail insertion hole;
the guide clamp comprises a clamp body formed by connecting two clamp arms which are rotatably connected, the two clamp arms are respectively a left clamp arm and a right clamp arm, the ring bodies are respectively a left ring body connected with the left clamp arm and a right ring body connected with the right clamp arm, and the front end of the left forearm is rotatably connected with the left ring body through a rotating shaft; the front end of the right forearm and the right ring body rotate through another rotating shaft; the rear end of the right ring body is connected with a right fixing rod, the rear end of the right fixing rod is connected with a right nut, the rear end of the left ring body is connected with a left fixing rod, and the rear end of the left fixing rod is connected with a left nut; the left end of the rotating rod is provided with a left external thread matched with the left nut, the right end of the rotating rod is provided with a right external thread matched with the right nut, and the thread directions of the left external thread and the right external thread are opposite;
the distance between the left ring body and the right ring body is adjusted through the rotation of the rotating rod, and the central axes of the left ring body and the right ring body are in the same straight line;
the thermal imager is used in a matched manner, so that the locking hole in the intramedullary nail is positioned by applying an infrared thermal sensing principle, or the locking hole in the intramedullary nail is positioned by matching a guide clamp with a temperature sensing alarm.
2. The infrared navigation device of the intramedullary nail of the orthopedics department of claim 1, wherein: also comprises a head-wearing thermal imager.
3. The infrared navigation device of the intramedullary nail of the orthopedics department of claim 1, wherein: the front ends of the two clamp arms are detachably connected with the clamp heads.
4. The infrared navigation device of the intramedullary nail of the orthopedics department of claim 1, wherein: the inner wall of the slide fastener is provided with an internal thread, the outer wall of the guide rod is provided with an external thread matched with the internal thread, and the slide fastener is locked on the guide rod through a thread structure.
5. The infrared navigation device of the intramedullary nail of the orthopedics department of claim 1, wherein: the slide fastener is locked on the guide rod through a locking mechanism;
the locking mechanism is a screw, a threaded hole in threaded connection with the screw is formed in the sliding buckle, and the sliding buckle is abutted to the outer wall of the guide rod through the screw penetrating through the threaded hole.
6. The infrared navigation device of the intramedullary nail of the orthopedics department of claim 1, wherein: the guide pole includes a metal forming hose, the power supply line is worn to establish metal forming hose's inside and stretch out from the rear end.
7. The infrared navigation device of the intramedullary nail of the orthopedics department of claim 1, wherein: the infrared light source comprises at least three infrared emission heads, and each infrared emission head is connected with the power supply system through a control switch.
8. The infrared navigation device of the intramedullary nail of the orthopedics department of claim 1, wherein: the inner wall of the intramedullary nail is coated with an absorption layer which absorbs infrared light.
9. An intramedullary nail system matched with an orthopedic intramedullary nail infrared navigation device, which comprises an intramedullary nail, wherein a locking hole is formed on the intramedullary nail, and the intramedullary nail system is characterized by comprising the orthopedic intramedullary nail infrared navigation device as claimed in any one of claims 1 to 8;
when the intramedullary nail is combined, the guide rod is inserted into a cavity of the intramedullary nail, and the infrared light source is arranged on the inner side of the intramedullary nail provided with the locking hole;
the slide fastener and the power supply line are arranged outside the intramedullary nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553045.XA CN108852491B (en) | 2018-05-31 | 2018-05-31 | Infrared navigation device for orthopedic intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553045.XA CN108852491B (en) | 2018-05-31 | 2018-05-31 | Infrared navigation device for orthopedic intramedullary nail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108852491A CN108852491A (en) | 2018-11-23 |
| CN108852491B true CN108852491B (en) | 2020-06-12 |
Family
ID=64335959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810553045.XA Active CN108852491B (en) | 2018-05-31 | 2018-05-31 | Infrared navigation device for orthopedic intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108852491B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5417688A (en) * | 1993-12-22 | 1995-05-23 | Elstrom; John A. | Optical distal targeting system for an intramedullary nail |
| CN1439341A (en) * | 2002-02-19 | 2003-09-03 | 朱唯勤 | Pulp cavity guide needle with lighting positioner |
| WO2007131231A2 (en) * | 2006-05-05 | 2007-11-15 | Jg Medical Products Llc | Intramedullary transillumination apparatus, surgical kit and method for accurate placement of locking screws in long bone intramedullary rodding |
| CN201022743Y (en) * | 2006-12-15 | 2008-02-20 | 常州奥斯迈医疗器械有限公司 | Marrow nail keyhole magnetic positioning device |
| CN105193491A (en) * | 2015-08-18 | 2015-12-30 | 容可 | Intramedullary nail far-end laser locking aiming device |
| CN205885511U (en) * | 2016-05-09 | 2017-01-18 | 林凡国 | Intramedullary nail and distal end pinning pointing system thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI563963B (en) * | 2015-10-16 | 2017-01-01 | 高雄醫學大學 | Bone nail apparatus |
| CN105832398B (en) * | 2016-03-21 | 2018-08-21 | 段强民 | A kind of reduction forceps of bone of positioning and guiding |
-
2018
- 2018-05-31 CN CN201810553045.XA patent/CN108852491B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5417688A (en) * | 1993-12-22 | 1995-05-23 | Elstrom; John A. | Optical distal targeting system for an intramedullary nail |
| US5540691A (en) * | 1993-12-22 | 1996-07-30 | Elstrom; John A. | Optical distal targeting method for an intramedullary nail |
| CN1439341A (en) * | 2002-02-19 | 2003-09-03 | 朱唯勤 | Pulp cavity guide needle with lighting positioner |
| WO2007131231A2 (en) * | 2006-05-05 | 2007-11-15 | Jg Medical Products Llc | Intramedullary transillumination apparatus, surgical kit and method for accurate placement of locking screws in long bone intramedullary rodding |
| CN201022743Y (en) * | 2006-12-15 | 2008-02-20 | 常州奥斯迈医疗器械有限公司 | Marrow nail keyhole magnetic positioning device |
| CN105193491A (en) * | 2015-08-18 | 2015-12-30 | 容可 | Intramedullary nail far-end laser locking aiming device |
| CN205885511U (en) * | 2016-05-09 | 2017-01-18 | 林凡国 | Intramedullary nail and distal end pinning pointing system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108852491A (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6668516B2 (en) | Navigation system and method for indicating and reducing line of sight errors | |
| CN105848594B (en) | For being attached the device of bone plate | |
| CN103561670B (en) | Aim at the mark of orthopedic device | |
| US5417688A (en) | Optical distal targeting system for an intramedullary nail | |
| US6656189B1 (en) | Radiolucent aiming guide | |
| US20070270864A1 (en) | Intramedullary transillumination apparatus, surgical kit and method for accurate placement of locking screws in long bone intramedullary rodding | |
| EP1329197B1 (en) | Device for identifying the position of intramedullary nail securement screw holes | |
| US20230000506A1 (en) | Percutaneous targeting device | |
| WO2005092219A1 (en) | Bone connecting tool | |
| WO2007133168A2 (en) | Noninvasive locking of distal holes in cannulated intramedullary nails in surgery | |
| US20140163557A1 (en) | Guiding system | |
| CN109414154A (en) | Device and method for conveying medical instrument | |
| CN106473801B (en) | Tibial-calcaneal joint fusion screw imbedding guider and using method thereof | |
| JP2024045488A (en) | Systems and methods for tool detection and associated control modes | |
| HU225838B1 (en) | An appliance for the determination of the position of medullary cavity nail bores | |
| CN108852491B (en) | Infrared navigation device for orthopedic intramedullary nail | |
| WO2004054626A2 (en) | Lighted cautery knife | |
| CN108143477B (en) | Intramedullary bone lengthening device using memory alloy spring electromagnetic heating | |
| CN105726108B (en) | A kind of bone-holder for orthopaedics Minimally Invasive Surgery | |
| CN108272499B (en) | Far-end locking sighting device of light-permeable intramedullary nail | |
| CN210077839U (en) | Disposable side-lighting guiding device | |
| CN109846542B (en) | Intramedullary nail positioning system | |
| US11376024B2 (en) | Intramedulary nail with recepatacle for receiving a tareting device for targeting a bone-anchor fixation hole | |
| CN215739388U (en) | Hollow screw sighting device | |
| CN208339587U (en) | A kind of light-permeable intra medullary nail far-end lock pin sighting device |
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 |