CN112998663A - Tibiofibular syndesmosis stability detection device - Google Patents
Tibiofibular syndesmosis stability detection device Download PDFInfo
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- CN112998663A CN112998663A CN202110315539.6A CN202110315539A CN112998663A CN 112998663 A CN112998663 A CN 112998663A CN 202110315539 A CN202110315539 A CN 202110315539A CN 112998663 A CN112998663 A CN 112998663A
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- top pressure
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- fibula
- connecting rod
- shin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0048—Detecting, measuring or recording by applying mechanical forces or stimuli
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
- A61B5/4533—Ligaments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/061—Measuring instruments not otherwise provided for for measuring dimensions, e.g. length
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
- A61B2090/065—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension for measuring contact or contact pressure
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- Health & Medical Sciences (AREA)
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- Engineering & Computer Science (AREA)
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- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
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- Animal Behavior & Ethology (AREA)
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- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Rehabilitation Therapy (AREA)
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- Orthopedic Medicine & Surgery (AREA)
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- Ultra Sonic Daignosis Equipment (AREA)
Abstract
The invention relates to a tibiofibula combined stability detection device, which comprises a device barrel, wherein the front end of the device barrel is provided with a stuffing end for stuffing between tibiofibula and tibia, the side wall of the opposite side of the stuffing end is provided with two guide holes, the two guide holes are provided with a top pressure head in a guiding movement way, the rear end of the device barrel is provided with a pressing rod in a guiding movement way, the pressing rod is in transmission connection with the two top pressure heads through a transmission mechanism so as to drive the two top pressure heads to move backwards and push the tibiofibula open, the top pressure heads are in sealed guide movement fit with the corresponding guide holes all the time in the movement process, and the tibiofibula combined stability detection device also comprises a displacement measurement mechanism for detecting the movement distance of the top pressure heads when the tibiofibula and the fibula are pushed open and a. The invention provides a tibiofibular syndesmosis stability detection device capable of being operated by one hand.
Description
Technical Field
The invention relates to a lower tibiofibular syndesmosis stability detection device in the field of medical equipment.
Background
Ankle joint fracture is the common fracture in clinic at present, and preoperative diagnosis of ankle joint fracture combined with tibiofibula combined separation usually needs clinical physical examination and influential detection combined together. Traditional imaging has the risk of radioactive exposure, and drilling holes in the fibula is used for detecting injuries.
Chinese patent CN111407428B discloses a "tibiofibula joint stability detector under jaw type", this detector includes fibula and holds the subassembly, pass and mechanics measuring component, separation distance measuring component, the subassembly is held to the fibula and includes left and right handle, left and right connecting portion, left and right centre gripping pipe, left and right handle links to each other with left and right centre gripping pipe through left and right connecting portion respectively, left and right centre gripping pipe all sets up to hollow structure, left centre gripping pipe, can obtain to connect through coupling mechanism and form pincerlike structure.
During the use, the fibula is opened to one hand and is held the subassembly, makes the fibula clamping jaw clip the fibula, and the measuring stick top is on the shin bone, and another hand promotes the piston rod forward, observes the pressure scale, and when pressure reached the predetermined value, the reading on the record scale made corresponding judgement according to the scale reading. The simple point says that, uses the fibula to hold the subassembly and cliies the fibula, pushes up on the shin bone through the measuring stick, judges whether the ligament between fibula, shin bone damages according to the size of application of force and the distance that the shin bone was backed up. If a certain force value is given, the tibia is pushed open far away from the fibula, the ligament between the fibula and the tibia is damaged, and if the tibia is pushed open close to the fibula, the ligament between the fibula and the tibia is not damaged.
The prior tibiofibular syndesmosis stability has the following problems: 1. from the above analysis, it can be known that accurately judging the distance at which the tibia is jacked is the key for detection accuracy, however, in the prior art, the angle of the measuring rod changes in the measuring process, so that the distance at which the tibia is jacked cannot be accurately obtained through the measuring rod, for example, in the process of clamping the fibula by a fibula clamping jaw, the included angle of the measuring rod changes, when the piston rod is jacked, the included angle of the measuring rod still changes in the process of jacking the tibia by the measuring rod, at this time, the distance at which the tibia is jacked cannot be accurately measured, and the measuring rod is jacked on the tibia and rotates around the tibia to damage the tibia; 2. the whole instrument needs to be operated by two hands, and the distance of the operation by the two hands is short, so that the operation is inconvenient; 3. two measuring sticks push the both sides of shin bone, push away the shin bone, if appear the shin bone by the apical distance far away, can't judge that it is the ligament of which side of shin bone to go wrong.
Disclosure of Invention
The invention aims to provide a tibiofibular syndesmosis stability detection device which can be operated by one hand and can accurately judge which side ligament has a problem.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a tibiofibula is joint stability detection device down, including a device section of thick bamboo, a device section of thick bamboo front end has and is used for filling in the shin bone, the end of filling in between the fibula, two guiding holes have been seted up on the opposite side lateral wall of the end of filling in, the direction removes on two guiding holes and is equipped with the top pressure head, device section of thick bamboo rear end direction removes and is equipped with the pressure bar, the pressure bar is connected with two top pressure head transmissions through drive mechanism and two top pressure head and removes the shin bone in order to drive two top pressure heads and remove to the back, the fibula is backed down, top pressure head activity in-process all the time with correspond the sealed direction removal cooperation of guiding hole, tibiofibula is still including being used for the shin bone, the displacement measurement mechanism that detects top pressure.
The plug-in end is of a flat structure, and the thickness of the plug-in end is gradually increased from front to back.
The front end of the pressing rod is hinged with a first connecting rod and a second connecting rod which are arranged in a splayed shape, the front end of the first connecting rod is hinged with one of the jacking heads, and the front end of the second connecting rod is hinged with the other jacking head.
The device barrel is internally provided with a guide partition plate, the pressing rod is movably matched with the guide partition plate in a guide manner, a pressing rod baffle is arranged on the rear side of the guide partition plate on the pressing rod, and the force measuring mechanism comprises a pressing spring arranged between the pressing rod baffle and the guide partition plate.
The displacement measuring mechanism measures the moving distance of the roof pressure head by detecting the moving displacement of the pressing rod.
The two jacking heads are arranged in a front-back mode, the transmission mechanism comprises a transmission crankshaft which is arranged in the plugged end, the transmission crankshaft is provided with a main journal and connecting rod journals, the axes of the main journal extend in the front-back direction, the connecting rod journals are located on two opposite sides of the main journal, and the connecting rod journals are used for being in jacking fit with the inner sides of the corresponding jacking heads to push out the jacking heads.
The displacement measuring mechanism comprises a measuring scale arranged on the side surface of the top pressure head.
The device barrel is internally provided with a transmission shaft which is coaxially and fixedly connected with the transmission crankshaft in a rotating mode, the front end of the pressing rod is provided with a rack, the transmission mechanism comprises a first gear which is meshed with the rack for transmission, and the first gear is in transmission connection with the transmission shaft through a gear transmission mechanism so as to drive the transmission shaft to rotate.
The force measuring mechanism comprises a torque sensor which is arranged on the transmission shaft in series.
The invention has the beneficial effects that: when the detection device is used, only one side between the tibia and the fibula is required to be pressed by the pressing rod like an injector, and the pressing rod is in transmission connection with the two jacking heads through the transmission mechanism so as to drive the two jacking heads to move backwards to jack the tibia and the fibula open. The invention has the following characteristics that the tibia and the fibula can be pushed open by holding the device barrel with one hand and pressing the pressing head with the thumb; because the end of stuffing only stretches into from one side of shin bone, fibula and carries out the operation of opening of pushing up to shin bone, fibula, remove the other side of pushing up shin bone, fibula after one side has been pushed up, can accurately judge that the ligament of which side goes wrong.
More importantly, the jacking head can only move along the corresponding guide hole, the moving relation between the jacking head and the device barrel relative to the device barrel and the pressing rod relative to the device barrel is determined, the moving distance of the jacking head is easy to measure, the moving distance of the jacking head and the moving distance of the pressing rod have a fixed proportional relation, the moving distance of the jacking head can be easily obtained by measuring the pressing rod, and therefore the jacking distance of the tibia and the fibula is accurately obtained.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a state diagram of use of embodiment 1 of the present invention;
FIG. 3 is a schematic view of the two ejector heads of FIG. 1 after ejection;
FIG. 4 is an enlarged view taken at A in FIG. 1;
FIG. 5 is a schematic structural view of embodiment 2 of the present invention;
FIG. 6 is an enlarged view at B in FIG. 5;
fig. 7 is a schematic view of the crankshaft of fig. 5 after two ejector heads have been ejected.
Detailed Description
Fig. 1 to 4 show an embodiment 1 of the apparatus for detecting tibiofibular syndesmosis stability in the present invention: including a device section of thick bamboo, a device section of thick bamboo includes stack shell 3 and sets up and be used for stuffing into the end 1 of stuffing between shin bone 16, fibula 17 when the use of stack shell front end, and the end 1 of stuffing is flat structure, and the thickness of stuffing the end is by preceding to back increase gradually, and such end of stuffing is more easily stuffed into between shin bone 16 and the fibula 17. The front end of the barrel body is provided with a limiting disc 13 made of flexible materials, and the limiting disc 13 is arranged to be in limiting fit with the tibia and the fibula so as to limit the maximum plugging size of the plugging head. The rear end of the barrel body is provided with two ear plates, which is convenient for the middle finger and the index finger of an operator to hook for use.
Two guiding holes 15 have been seted up on the relative both sides lateral wall of end 1 is filled in, equal direction removal is equipped with the top pressure head 2 on each guiding hole 15, the direction moving direction of two top pressure heads 2 is "eight" font, device section of thick bamboo rear end direction removal is equipped with pressing rod 6, pressing rod 6 is connected with two top pressure head transmissions through drive mechanism and two top pressure heads and removes the shin bone in order to drive two top pressure heads back of the body, the fibula is backed down, 2 movable processes of top pressure head all the time with correspond the sealed direction removal cooperation of guiding hole, can avoid patient's blood to enter into inside the device section of thick bamboo night like this, it is convenient that the device section of thick.
The tibia and fibula combined stability detection device further comprises a force measurement mechanism for detecting the acting force of the top pressure head by a displacement measurement mechanism for detecting the moving distance of the top pressure head when the tibia and the fibula are jacked open. The front end of the pressing rod is hinged with a first connecting rod 11 and a second connecting rod 12 which are arranged in a splayed shape, the front end of the first connecting rod 11 is hinged with one of the pressing heads, and the front end of the second connecting rod 12 is hinged with the other pressing head. Be provided with direction baffle 9 in the device section of thick bamboo, press the cooperation of pressure lever 6 and direction baffle direction removal, be provided with on the pressure lever in the rear side of direction baffle and press a pressure lever baffle 7, force measuring mechanism is including setting up the pressure spring 8 between pressing a pressure lever baffle and the direction baffle. The displacement measuring mechanism measures the moving distance of the roof pressure head by detecting the moving displacement of the pressing rod. Item 4 in the figure shows a limit stopper provided on the inner wall of the barrel 3 for limiting the forward movement limit of the pressing lever stopper 7.
In use, as shown in fig. 2, the insertion heads 1 of the two tibiofibular syndesmosis stability detecting devices are respectively inserted between two sides of the tibia 16 and the fibula 17, however, in other embodiments of the present invention, one tibiofibular syndesmosis stability detecting device 18 may be inserted between one side of the tibia and the fibula, and then the tibiofibula syndesmosis stability detecting device is inserted between the other side of the tibia and the fibula. Operating personnel forefinger, the otic placode is hitched to the middle finger, the thumb is pressed the pressure bar, just like operating the syringe, the pressure bar is forward the propelling movement in-process, first connecting rod is pushing away corresponding top pressure head respectively and is being removed along corresponding guiding hole, two top pressure heads move dorsad and with the shin bone, the fibula is backed down, because the removal orbit of pressure bar and top pressure head's removal orbit are definite, consequently, can be through the accurate displacement distance who reflects top pressure head of the displacement distance of pressure bar, and then accurate reaction goes out the fibula, the separation distance between the shin bone, provide accurate reference for operation later.
An embodiment 2 of the apparatus for detecting tibiofibular syndesmosis stability is shown in fig. 5-7: example 2 differs from example 1 in that the thickness of the insertion tip 1 is further reduced to facilitate insertion of the insertion tip between the tibia and fibula.
In this embodiment, the plug 1 is a flat structure, two top pressure heads 2 are arranged in front and back, the transmission mechanism comprises a transmission crankshaft 20 located in the plug, the transmission crankshaft is provided with a main journal and a connecting rod journal 29, the main journal extends along the front and back direction, the connecting rod journal 29 is located on two opposite sides of the main journal, the connecting rod journal 29 is used for being in pushing fit with the inner side of the corresponding top pressure head 2 to push out the top pressure head, when the transmission crankshaft rotates, the connecting rod journal 29 is in pushing fit with the inner side of the corresponding top pressure head 2 to push out the top pressure head, so when the two top pressure heads 2 return, the thickness of the connecting rod journal 29 is reserved between the two top pressure heads, the size of the whole plug can be the minimum, and the requirements of shin bone and fib. The return of the ram can be achieved by pressing on the outside.
The transmission shaft 21 which is coaxially and fixedly connected with the transmission crankshaft 20 is rotatably assembled in the device barrel, the rack 25 is arranged at the front end of the pressing rod 6, the transmission mechanism comprises a first gear 26 which is meshed with the rack for transmission, and the first gear 26 is in transmission connection with the transmission shaft 21 through a gear transmission mechanism so as to drive the transmission shaft to rotate. The gear transmission mechanism comprises a first bevel gear 24 which is fixedly connected with the first gear in a coaxial line, and a second bevel gear 23 which extends along the up-and-down direction along the rotation axis of the first bevel gear 24 in meshing transmission, wherein a transmission big gear 28 is fixed on the second bevel gear 23 in a coaxial line, and a transmission small gear 27 which is in meshing transmission with the transmission big gear is fixed on the transmission shaft in a coaxial line, so that the linear motion of the pressing rod can be converted into the rotation motion of the transmission shaft. The displacement measuring mechanism comprises a measuring scale 30 arranged on the side surface of the top pressure head, and the force measuring mechanism comprises a torque sensor 22 arranged on the transmission shaft in series. After the jacking head is jacked out, the moving distance of the jacking head can be judged by observing the measuring scales, then the jacking distance between the tibia and the fibula is judged, and under the set torque, the damage condition of the ligament between the tibia and the fibula is judged according to the jacking distance between the tibia and the fibula, so that preparation is made for subsequent operations.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a tibiofibular syndesmosis stability detection device which characterized in that: the device comprises a device barrel, device barrel front end has and is used for filling in the shin bone, the end of filling in between the fibula, two guiding holes have been seted up on the opposite side lateral wall of the end of filling in, the direction removes on two guiding holes and is equipped with the top pressure head, device barrel rear end direction removes and is equipped with the pressure bar, the pressure bar is connected through drive mechanism and two top pressure head transmissions and removes the shin bone with two top pressure heads back to the back of the drive, the fibula is backed down, all the time with the sealed direction removal cooperation that corresponds the guiding hole among the top pressure head activity process, the lower shin joint stability detection device is still including being used for the shin bone, the displacement measurement mechanism that detects top pressure head displacement when the fibula is backed down is used for detecting the.
2. The tibiofibular syndesmosis stability test device of claim 1, wherein: the plug-in end is of a flat structure, and the thickness of the plug-in end is gradually increased from front to back.
3. The tibiofibular syndesmosis stability test device of claim 1, wherein: the front end of the pressing rod is hinged with a first connecting rod and a second connecting rod which are arranged in a splayed shape, the front end of the first connecting rod is hinged with one of the jacking heads, and the front end of the second connecting rod is hinged with the other jacking head.
4. The tibiofibular syndesmosis stability test device of claim 3, wherein: the device barrel is internally provided with a guide partition plate, the pressing rod is movably matched with the guide partition plate in a guide manner, a pressing rod baffle is arranged on the rear side of the guide partition plate on the pressing rod, and the force measuring mechanism comprises a pressing spring arranged between the pressing rod baffle and the guide partition plate.
5. The shin-down row joint stability check device of claim 4, wherein: the displacement measuring mechanism measures the moving distance of the roof pressure head by detecting the moving displacement of the pressing rod.
6. The shin-down row joint stability check device of claim 1, wherein: the two jacking heads are arranged in a front-back mode, the transmission mechanism comprises a transmission crankshaft which is arranged in the plugged end, the transmission crankshaft is provided with a main journal and connecting rod journals, the axes of the main journal extend in the front-back direction, the connecting rod journals are located on two opposite sides of the main journal, and the connecting rod journals are used for being in jacking fit with the inner sides of the corresponding jacking heads to push out the jacking heads.
7. The shin-down row joint stability check device of claim 6, wherein: the displacement measuring mechanism comprises a measuring scale arranged on the side surface of the top pressure head.
8. The shin-down row joint stability check device of claim 6, wherein: the device barrel is internally provided with a transmission shaft which is coaxially and fixedly connected with the transmission crankshaft in a rotating mode, the front end of the pressing rod is provided with a rack, the transmission mechanism comprises a first gear which is meshed with the rack for transmission, and the first gear is in transmission connection with the transmission shaft through a gear transmission mechanism so as to drive the transmission shaft to rotate.
9. The shin-down row joint stability check device of claim 6, wherein: the force measuring mechanism comprises a torque sensor which is arranged on the transmission shaft in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315539.6A CN112998663B (en) | 2021-03-24 | 2021-03-24 | Tibiofibular syndesmosis stability detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315539.6A CN112998663B (en) | 2021-03-24 | 2021-03-24 | Tibiofibular syndesmosis stability detection device |
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| CN112998663A true CN112998663A (en) | 2021-06-22 |
| CN112998663B CN112998663B (en) | 2022-01-07 |
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| CN111407428A (en) * | 2020-03-30 | 2020-07-14 | 山东大学齐鲁医院(青岛) | Tibiofibular joint stability detector under jaw type |
| CN212261343U (en) * | 2020-03-30 | 2021-01-01 | 山东大学齐鲁医院(青岛) | Tibiofibular syndesmosis stability detection device |
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| US20090198240A1 (en) * | 2008-01-31 | 2009-08-06 | Kaufman David L | Femoral Tibial Spreader with Tensor Measurement |
| US20110046674A1 (en) * | 2008-02-07 | 2011-02-24 | Giuseppe Calvosa | Interspinous vertebral distractor for percutaneous implantation |
| CN101569552A (en) * | 2008-04-28 | 2009-11-04 | 冠亚生技股份有限公司 | Supporting device of percutaneous expanding crest |
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