CN109938849B - Accurate positioning ruler for fracture - Google Patents
Accurate positioning ruler for fracture Download PDFInfo
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- CN109938849B CN109938849B CN201910352208.2A CN201910352208A CN109938849B CN 109938849 B CN109938849 B CN 109938849B CN 201910352208 A CN201910352208 A CN 201910352208A CN 109938849 B CN109938849 B CN 109938849B
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- positioning
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- 239000000523 sample Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000003384 imaging method Methods 0.000 claims abstract description 7
- 208000010392 Bone Fractures Diseases 0.000 claims description 41
- 238000002513 implantation Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001356 surgical procedure Methods 0.000 abstract description 11
- 206010017076 Fracture Diseases 0.000 description 34
- 210000000988 bone and bone Anatomy 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 206010034246 Pelvic fractures Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 206010067482 No adverse event Diseases 0.000 description 1
- 230000000735 allogeneic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002695 general anesthesia Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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Abstract
The invention provides an accurate positioning ruler for fracture, wherein guide rails are arranged on two sides of a positioning bed special for fracture surgery for puncture in surgery and positioning when screws are implanted, the accurate positioning ruler also comprises an ultrasonic probe which can carry out 360-degree ultrasonic detection on a damaged part of a human body, the ultrasonic probe can carry out accurate positioning and imaging on the damaged part, the ultrasonic probe is provided with a plurality of groups, and the groups can be matched with each other to realize accurate positioning and simultaneously acquire each angle cross-section image information of a part of the damaged part to generate an accurate three-dimensional information map of the damaged part. In the process of implanting the screw, a doctor takes the central axis of the implanted screw closest to the damaged part as the Z axis and takes the outer side end face of the screw perpendicular to the central axis as an XY plane to establish a coordinate system, and a central control system of a computer can store the implanted angle and position information of the rest screws of the patient for taking out the surgical operation.
Description
Technical Field
The invention belongs to the technical field of medical equipment, relates to a positioning ruler used in the treatment and rehabilitation process of fracture patients, and particularly relates to an accurate positioning ruler for fracture.
Background
The bone is hit by external force, complete or incomplete fracture occurs, so called fracture, the fracture patient usually needs to be operated, the operation reduction and internal fixation are realized by performing operation on the fracture part to cut the soft tissue of the fracture part, expose the fracture section and reduce the fracture under direct vision. After reduction, the fracture section can be fixed by using metal internal fixation objects which have no adverse reaction on human tissues, such as bone fracture plates, screws, intramedullary nails, compression steel plates and the like, and also by using autologous or allogeneic bone grafting pieces. The patient is general or local anesthesia, and the operation incision is positioned in the fracture area. The bone is reset in the operation, and the bone fracture plate, the screws, the intramedullary nail and the compression steel plate are temporarily or permanently installed in the bone according to the actual situation to fix the bone. Operation reduction and external fixation, namely, performing operation to reduce the fracture and installing an external bone fixator outside the fractured limb. The external bone fixator is an external steel frame assembled by a chuck and a steel pipe, can support bones and correct various displacements of the bones in a healing process.
Application No. CN201520190095.8 discloses a fixed minimal access surgery frame of fracture reduction, it is through setting up the track on the bow-shaped frame, make release link, the wicresoft pipe, and position dead lever can slide along the track and realize confirming the three-dimensional direction that the fracture reduced under the CT guide, and can implant set screw through the wicresoft pipe, fix the human body, though it has the CT guide and can accurately confirm the position fixing position and orientation, it does not consider the screw problem of taking out of postoperative, still need carry out CT etc. when taking out the screw after the recovery and fix a position the screw once more and take out the screw through great incision, consequently can cause the postoperative burden to reduce recovered operation efficiency.
The application document with the application number of CN201510120718.9 discloses a closed reduction device for minimally invasive surgery of unstable pelvic fracture, wherein a second lateral external frame and a first lateral external frame are fixed on a guide rail through a guide rail sliding clamp, a connecting external frame is of a structure that an arc part is connected with a transverse straight rod part, the connecting external frame is connected with the second lateral external frame through an external frame sliding clamp, a screw clamping clamp is used for clamping a screw and is fixed on the connecting external frame, the guide rail is arranged on two sides of an operating bed, the closed reduction device for minimally invasive surgery can reduce unstable pelvic fracture according to a specific path, a specific angle and designated parameters, and the reduction effect is good; however, the problem of screw removal after surgery is not considered, and the screw cannot be accurately positioned during the screw removal surgery.
The current precision fracture positioning ruler on the market has single function, and some of the precision fracture positioning rulers can only position screws, so that improvement on the aspects is urgently needed.
Disclosure of Invention
The invention overcomes the defects and provides an accurate positioning ruler for fracture, wherein guide rails are arranged on two sides of a positioning bed special for fracture surgery for puncture and positioning when screws are implanted during surgery, the accurate positioning ruler also comprises an ultrasonic probe which can carry out 360-degree ultrasonic detection on a damaged part of a human body, the ultrasonic probe can carry out accurate positioning and imaging on the damaged part, the ultrasonic probe comprises a plurality of groups, and the groups can be matched with each other to realize accurate positioning and simultaneously acquire each angle cross-section image information of a part of the damaged part to generate an accurate three-dimensional information map of the damaged part. In the process of implanting the screw, a doctor takes the central axis of the implanted screw closest to the damaged part as the Z axis and takes the outer side end face of the screw perpendicular to the central axis as an XY plane to establish a coordinate system, and a central control system of a computer can store the implanted angle and position information of the rest screws of the patient for taking out the surgical operation.
The accurate positioning ruler for the fracture is arranged on two sides of a positioning bed special for the fracture operation and is in sliding connection with guide rails on two sides of the positioning bed special for the fracture operation for puncture in the operation and positioning when a positioning screw is implanted, and is characterized in that a main body of the positioning ruler is approximately in a semi-circular arc shape, one side of the main body is rotationally connected with a sliding block on a sliding rail on one side of the guide rail, the other side of the main body is connected with a sliding block buckle on a sliding rail on the other side of the guide rail in a buckling manner, a hollow positioning cylinder is further arranged on the main body of the positioning ruler, the positioning cylinder can move on the main body of the positioning ruler, the positioning cylinder comprises an upper cylinder body and a lower cylinder body, the upper cylinder body and the lower cylinder body are detachably and fixedly connected; the piercing terminal of the lower barrel of the positioning ruler also comprises an ultrasonic probe which can carry out 360-degree ultrasonic detection on the damaged part of the human body, the ultrasonic probe can carry out precise positioning and imaging on the damaged part, the ultrasonic probe is provided with a plurality of groups, and the groups can be matched with each other in a coordinated manner to realize precise positioning and simultaneously acquire all angle cross-section image information of a part of the damaged part to generate an accurate three-dimensional information map of the damaged part; in the process of implanting the positioning screws, a doctor takes a central axis of the positioning screw which is closest to the damaged part and is firstly implanted into a human body as a Z axis, and takes an outer side end face of the positioning screw vertical to the central axis as an XY plane to establish a coordinate system, and a central control system of a computer can store implantation angles and position information of other positioning screws implanted into a patient in the coordinate system, so that the positioning screws can be conveniently and accurately positioned in an operation of taking out the positioning screws, and the operation of taking out the positioning screws can be accurately carried out only by making a small incision at the position where the positioning screws are implanted.
The implantation positioning screw is fixed by the upper cylinder body through a plurality of circumferentially arranged fixing screws, a threaded through hole is formed in the radial peripheral wall of the upper cylinder body, threads are formed in the outer surface of each fixing screw, the fixing screws are screwed in a suspending mode to penetrate through the threaded through holes to jack the elastic fixing piece tightly, the elastic fixing piece surrounds the periphery of each positioning screw to fix the positioning screw, and the positioning screws with different radiuses can be fixed by screwing in the suspending mode through the plurality of circumferentially arranged fixing screws;
the end part of the positioning screw is connected with a follow-up part which is a positioning element and is connected with a central control system of a computer to record the position of the positioning screw in the coordinate system.
Wherein the outer surface of the set screw is coated with a biological coating.
The positioning cylinder slides on a track of the main body, a movable telescopic rod is fixedly connected to the positioning cylinder, the movable telescopic rod is connected between supporting rods on two sides of the main body in a sliding mode through a sliding block, and the position of the positioning cylinder is automatically adjusted by controlling the movable telescopic rod to move back and forth in the horizontal direction through a central control system of a computer; the main body of the positioning ruler is also provided with scale marks, and the position of the positioning cylinder on the main body can be manually adjusted when a doctor implants a steel nail.
The positioning cylinder is arranged on the track of the main body in a sliding mode through the sliding block, and the positioning cylinder can rotate relative to the sliding block to achieve angle adjustment of the implanted positioning screw.
The upper barrel body and the lower barrel body are detachably connected through a buckle or a thread.
In order to ensure that the position of the injured part of the patient and the positioning position of the ultrasonic probe do not excessively change in the operation, the positioning bed special for the fracture operation is provided with fixing devices corresponding to the four limbs, the trunk and the head respectively.
The invention has the beneficial effects that:
(1) the invention provides an accurate positioning ruler for fracture, wherein guide rails are arranged on two sides of a positioning bed special for fracture surgery for puncture in surgery and positioning when screws are implanted, the accurate positioning ruler also comprises an ultrasonic probe which can carry out 360-degree ultrasonic detection on a damaged part of a human body, the ultrasonic probe can carry out accurate positioning and imaging on the damaged part, the ultrasonic probe is provided with a plurality of groups, and the groups can be matched with each other to realize accurate positioning and simultaneously acquire each angle cross-section image information of a part of the damaged part to generate an accurate three-dimensional information map of the damaged part.
(2) According to the accurate positioning ruler for the fracture, a doctor establishes a coordinate system by taking the central axis of the implanted screw closest to the damaged part as the Z axis and taking the outer side end face of the screw perpendicular to the central axis as an XY plane in the process of implanting the screw, and a central control system of a computer can store the implanted angles and position information of other screws of a patient for taking out operation, so that the incision area for taking out the screw is reduced, and the operation efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the accurate positioning ruler for fracture;
FIG. 2 is a schematic structural view of a section of a cylinder on the accurate fracture positioning ruler of the present invention;
Detailed Description
The accurate fracture positioning ruler of the invention is described in detail with reference to fig. 1-2.
Example 1
The accurate positioning ruler for the fracture is characterized in that a main body 101 of the positioning ruler 1 is approximately in a semicircular arc shape, one side of the main body is rotatably connected with a sliding block 201 on a sliding rail on one side of the guide rail 2, the other side of the main body is connected with a sliding block 202 on a sliding rail on the other side of the guide rail 2 in a buckling manner, a hollow positioning cylinder 4 is further arranged on the main body 101 of the positioning ruler 1, the positioning cylinder 4 can move on the main body 101 of the positioning ruler 1, the positioning cylinder 4 comprises an upper cylinder body 401 and a lower cylinder body 402, the upper cylinder body 401 and the lower cylinder body 402 are used for fixing the positioning screw 3, and the upper cylinder body 401 and the lower cylinder body 402 can be detachably and fixedly connected; the piercing terminal of the lower barrel 402 of the positioning ruler 1 further comprises an ultrasonic probe capable of carrying out 360-degree ultrasonic detection on the damaged part of the human body, the ultrasonic probe can carry out precise positioning and imaging on the damaged part, the ultrasonic probe has multiple groups, and the multiple groups can cooperate with each other to realize precise positioning and simultaneously acquire all angle cross-section image information of a part of the damaged part to generate an accurate three-dimensional information map of the damaged part; in the process of implanting the positioning screws, a doctor takes a central axis of the positioning screw 3 which is closest to the damaged part and is firstly implanted into a human body as a Z axis, and takes an outer side end face of the positioning screw 3 perpendicular to the central axis as an XY plane to establish a coordinate system, and a central control system of a computer can store implantation angles and position information of other positioning screws implanted into a patient in the coordinate system, so that the positioning screws can be conveniently taken out for accurate positioning in an operation, and the operation of taking out the positioning screws can be accurately carried out only by making a small incision at the implantation position of the positioning screws.
The upper cylinder 401 fixes the positioning screw 3 through a plurality of circumferentially arranged fixing nails 4011, a threaded through hole 4012 is formed in the radial peripheral wall of the upper cylinder 401, threads are arranged on the outer surface of the fixing nail 4011, the fixing nail 4011 is screwed in a suspending manner and penetrates through the threaded through hole 4012 to jack up an elastic fixing plate 4013, the elastic fixing plate 4013 surrounds the screw 3 to fix the positioning screw 3, and the positioning screws 3 with different radiuses can be fixed through the plurality of circumferentially arranged fixing nails 4011 in the suspending manner;
the end of the positioning screw 3 is connected with a follow-up component which is a positioning element and is connected with a central control system of a computer to record the position of the positioning screw 3 in the coordinate system.
Wherein, the outer surface of the implantation positioning screw 3 is coated with a biological coating.
The positioning cylinder 4 slides on a track 1011 of the main body 101, a movable telescopic rod 5 is further fixedly connected to the positioning cylinder 4, the movable telescopic rod 5 is connected to the track 1011 between the support rods on the two sides of the main body 101 through a sliding block 6, and the position of the positioning cylinder 4 is automatically adjusted by controlling the movable telescopic rod 5 to move back and forth in the horizontal direction through a central control system of a computer; the main body 101 of the positioning rule 1 is further provided with scale marks, so that the position of the positioning cylinder 4 on the main body 101 can be manually adjusted when a doctor performs steel nail implantation operation.
Wherein, the positioning cylinder 4 is slidably disposed on the track 1011 of the main body 101 through the slider 6, and the positioning cylinder 4 can rotate relative to the slider 6 to realize the angle adjustment of the implantation positioning screw 3.
The upper cylinder 401 and the lower cylinder 402 are detachably connected through a buckle or a thread.
In order to ensure that the position of the injured part of the patient and the positioning position of the ultrasonic probe do not excessively change in the operation, the positioning bed special for the fracture operation is provided with fixing devices corresponding to the four limbs, the trunk and the head respectively.
The invention provides an accurate positioning ruler for fracture, wherein guide rails are arranged on two sides of a positioning bed special for fracture surgery for puncture in surgery and positioning when screws are implanted, the accurate positioning ruler also comprises an ultrasonic probe which can carry out 360-degree ultrasonic detection on a damaged part of a human body, the ultrasonic probe can carry out accurate positioning and imaging on the damaged part, the ultrasonic probe is provided with a plurality of groups, and the groups can be matched with each other to realize accurate positioning and simultaneously acquire each angle cross-section image information of a part of the damaged part to generate an accurate three-dimensional information map of the damaged part. According to the accurate positioning ruler for the fracture, a doctor establishes a coordinate system by taking the central axis of the implanted screw closest to the damaged part as the Z axis and taking the outer side end face of the screw perpendicular to the central axis as an XY plane in the process of implanting the screw, and a central control system of a computer can store the implanted angles and position information of other screws of a patient for taking out operation, so that the incision area for taking out the screw is reduced, and the operation efficiency is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (5)
1. The accurate positioning ruler for the fracture is characterized in that a main body (101) of the positioning ruler (1) is approximately in a semicircular arc shape, one side of the main body is rotatably connected with a sliding block (201) on a sliding rail on one side of the guide rail (2), the other side of the main body is connected with a sliding block (202) on a sliding rail on the other side of the guide rail (2) in a buckling manner, a hollow positioning cylinder (4) is further arranged on the main body (101) of the positioning ruler (1), the positioning cylinder (4) can move on the main body (101) of the positioning ruler (1), and the positioning cylinder (4) comprises an upper cylinder body (401) and a lower cylinder body (402) which are used for fixing the positioning screw (3), the upper cylinder (401) is detachably and fixedly connected with the lower cylinder (402); the piercing terminal of the lower barrel (402) of the positioning ruler (1) further comprises an ultrasonic probe capable of carrying out 360-degree ultrasonic detection on a damaged part of a human body, the ultrasonic probe can carry out accurate positioning and imaging on the damaged part, the ultrasonic probe is provided with a plurality of groups, and the groups can cooperate with each other to realize accurate positioning and simultaneously acquire cross-section image information of each angle of a part of the damaged part to generate an accurate three-dimensional information map of the damaged part; in the process of implanting the screw, a doctor takes a central axis of a positioning screw (3) which is closest to a damaged part and is firstly implanted into a human body as a Z axis, and takes an outer side end face of the positioning screw (3) vertical to the central axis as an XY plane to establish a coordinate system, and a central control system of a computer can store implantation angles and position information of other screws implanted into a patient in the coordinate system, so that the screw can be conveniently and accurately positioned in an operation of taking out the screw, and the operation of taking out the screw can be accurately carried out only by making a small incision at the screw implantation position; go up barrel (401) and fix through a plurality of staple (4011) that circumference set up set screw (3), threaded through-hole (4012) have been seted up on the radial perisporium of going up barrel (401), staple (4011) outward appearance is provided with the screw thread, hangs the twist staple (4011) passes threaded through-hole (4012) top elastic fixation piece (4013), elastic fixation piece (4013) surround with fixed around set screw (3), through hanging a plurality of staple (4011) of twisting circumference setting can fix different set screw (3) of radius.
2. The accurate positioning ruler for bone fracture according to claim 1, wherein the end of the positioning screw (3) is connected with a follow-up component, the follow-up component is a positioning element and is connected with a central control system of a computer to record the position of the positioning screw (3) in the coordinate system.
3. Accurate positioning ruler for bone fractures according to claim 1, characterized in that the outer surface of the set screw (3) is coated with a bio-coating.
4. The accurate positioning ruler for bone fracture according to claim 1, characterized in that the positioning cylinder (4) is slidably arranged on the track (1011) of the main body (101) through a slide block (6), and the positioning cylinder (4) can rotate relative to the slide block (6) to realize the angle adjustment of the implanted positioning screw (3).
5. The accurate positioning ruler for bone fracture according to claim 1, characterized in that the upper cylinder (401) and the lower cylinder (402) are detachably connected by a snap or a thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910352208.2A CN109938849B (en) | 2019-04-29 | 2019-04-29 | Accurate positioning ruler for fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910352208.2A CN109938849B (en) | 2019-04-29 | 2019-04-29 | Accurate positioning ruler for fracture |
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| Publication Number | Publication Date |
|---|---|
| CN109938849A CN109938849A (en) | 2019-06-28 |
| CN109938849B true CN109938849B (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910352208.2A Expired - Fee Related CN109938849B (en) | 2019-04-29 | 2019-04-29 | Accurate positioning ruler for fracture |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101091669A (en) * | 2007-07-27 | 2007-12-26 | 张英泽 | Inner nail of anal filaments marrow, and embedding, extracting method |
| CN101543430A (en) * | 2009-05-02 | 2009-09-30 | 邓永岱 | Positioning ruler for taking out fracture inside-fixture |
| CN102596071A (en) * | 2009-07-06 | 2012-07-18 | 史密夫及内修公开有限公司 | Telemetic orthopaedic implant |
| CN103142246A (en) * | 2011-12-06 | 2013-06-12 | 株式会社东芝 | Ultrasound diagnostic apparatus and coordinate transformation method |
| CN204520922U (en) * | 2015-03-20 | 2015-08-05 | 张立海 | A kind of Unstable pelvic fractures Minimally Invasive Surgery closed reduction device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10092419B2 (en) * | 2011-07-12 | 2018-10-09 | Materialise, Nv | Surgical instrument for the positioning of an alignment element |
-
2019
- 2019-04-29 CN CN201910352208.2A patent/CN109938849B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101091669A (en) * | 2007-07-27 | 2007-12-26 | 张英泽 | Inner nail of anal filaments marrow, and embedding, extracting method |
| CN101543430A (en) * | 2009-05-02 | 2009-09-30 | 邓永岱 | Positioning ruler for taking out fracture inside-fixture |
| CN102596071A (en) * | 2009-07-06 | 2012-07-18 | 史密夫及内修公开有限公司 | Telemetic orthopaedic implant |
| CN103142246A (en) * | 2011-12-06 | 2013-06-12 | 株式会社东芝 | Ultrasound diagnostic apparatus and coordinate transformation method |
| CN204520922U (en) * | 2015-03-20 | 2015-08-05 | 张立海 | A kind of Unstable pelvic fractures Minimally Invasive Surgery closed reduction device |
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| CN109938849A (en) | 2019-06-28 |
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