CN104107084A - Claw-shaped sternum fixator - Google Patents
Claw-shaped sternum fixator Download PDFInfo
- Publication number
- CN104107084A CN104107084A CN201410370991.2A CN201410370991A CN104107084A CN 104107084 A CN104107084 A CN 104107084A CN 201410370991 A CN201410370991 A CN 201410370991A CN 104107084 A CN104107084 A CN 104107084A
- Authority
- CN
- China
- Prior art keywords
- pawl
- plate
- lock
- hook plate
- sawtooth
- 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.)
- Granted
Links
- 210000001562 sternum Anatomy 0.000 title claims abstract description 51
- 210000000078 claw Anatomy 0.000 claims abstract description 31
- 238000010862 gear shaping Methods 0.000 claims description 26
- 230000013011 mating Effects 0.000 claims description 6
- 239000008280 blood Substances 0.000 claims description 5
- 210000004369 blood Anatomy 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 210000003781 tooth socket Anatomy 0.000 abstract 5
- 230000037431 insertion Effects 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 2
- 210000000481 breast Anatomy 0.000 description 7
- 210000000038 chest Anatomy 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013132 cardiothoracic surgery Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
Abstract
The invention discloses a claw-shaped sternum fixator. The claw-shaped sternum fixator comprises an inner claw gripping plate and an outer claw gripping plate, the outer claw gripping plate is provided with a socket with a tooth socket portion, the inner claw gripping plate is provided with a tooth inserting portion which is matched with the tooth socket portion through insertion, the inner claw gripping plate achieves insertion connection through the matching of the tooth inserting portion and the tooth socket portion, first saw teeth are arranged inside the tooth socket portion, the tooth inserting portion is provided with second saw teeth matched with the first saw teeth, the inner claw gripping plate is further provided with a lock loosening fastener and a lock loosening hole, the lock loosening fastener and the lock loosening hole are matched with each other, and the lock loosening fastener is hinged to the inner claw gripping plate; when the lock loosening fastener moves relative to the inner claw gripping plate to enter into the lock loosening hole in a matching mode, the first saw teeth of the tooth socket portion are engaged with the second saw teeth of the tooth inserting portion to facilitate the tight fit of the inner claw gripping plate and the outer claw gripping plate. The claw-shaped sternum fixator can be locked, fixed and opened without any auxiliary tools, reduces operation time, wins precious time for rescue of patients, improves achievement ratios of operation, can be used for conveniently adjusting folding width of thoracotomy, is convenient and stable in fixation.
Description
Technical field
The present invention relates to a kind of claw type sternum fixer, belong to medical instruments field, for fixing breastbone after cardiothoracic surgery open chest surgery.
Background technology
At present, in the treatment that needs open chest surgery, the breastbone closing fixer operation of closing breast operation use is still undesirable, can not be in all case without under special equipment prerequisite immediately secondary open breast, after the breastbone closing fixer Yi Ci hospital of prior art is used, patient has arrived in the ICU situation in ward, because state of an illness burst need be opened breast immediately, as patient is moved to operating room, on time, do not allow, must take to open immediately breast rescues, the apparatus that can holder breastbone will be reopened is at that time in operating room, even also not sterilization, if at this moment can have a kind of claw type sternum fixer just can open without any instrument, just can try to gain time precious to one for rescue patient.Carry out operation on heart and generally all at the high training large hospital of technical merit, carry out, when patient leave hospital get back to local after as while being in an emergency, have little time former hospitalize, if there is no again special equipment at local hospital, need open rescue and cannot carry out fast at all.Now develop a kind of product, solved above-mentioned occurred problem.
Summary of the invention
Technical problem to be solved by this invention is the defect that overcomes prior art, a kind of claw type sternum fixer is provided, it not only can just can be locked and open without any aid, and open, reduced operating time whenever and wherever possible, and try to gain time precious to one for rescue patient, improve success rate of operation, and can conveniently regulate out breast to close up width, fixing easy, stable.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of claw type sternum fixer, comprise that interior pawl hooks plate and outer pawl hooks plate, outer pawl hooks the socket on plate with spline portion, on interior pawl hook plate, there is the gear shaping portion of pegging graft and coordinating with teeth groove portion, interior pawl hook plate is plugged in together by the cooperation of gear shaping portion and teeth groove portion, in teeth groove portion, be provided with the first sawtooth, in gear shaping portion, be provided with the second sawtooth coordinating with the first sawtooth, described interior pawl hooks and on plate, is also provided with the lock cooperatively interacting and releases and lock porosity, and lock releases and is hinged on interior pawl and hooks on plate; When lock releases, with respect to interior pawl, hook plate and turn to while detaching lock porosity, the first sawtooth of described teeth groove portion and the second sawtooth of gear shaping portion be separated in case interior pawl hook plate and outer pawl hook plate moving coordinate realize both upper and lower, move left and right; When lock releases, hook plate turn to and coordinate in lock porosity time with respect to interior pawl, the first sawtooth of described teeth groove portion and the second sawtooth of gear shaping portion are meshed and reach that interior pawl hooks plate and outer pawl hooks plate tight fit.
Further provide a kind of structure to catch on better breastbone outer so that open chest surgery, described interior pawl hooks plate and also has pawl in breastbone, and described outer pawl hooks plate and also has the outer pawl of breastbone, and in breastbone, the outer pawl of pawl and breastbone matches and arranges to catch on breastbone outer.
Further, in order to make out breast adjustment width wide, the scope of application is wide, is conducive to operator and selects when operation, and described teeth groove portion is for connecting the groove of whole socket.
Further in order to make interior pawl hook plate, can from putting into, all directions hook plate by pawl when the snap close not, and in when its snap close, pawl hook plate and outer pawl hook plate and can not produce displacement phenomenon, described interior pawl hooks between plate and outer pawl hook plate and is provided with position-limit mechanism, described position-limit mechanism comprises fin and the dovetail groove matching with corresponding fin, fin is arranged in gear shaping portion, and being positioned at the below of the second sawtooth, the sidepiece of teeth groove portion on socket left by dovetail groove, and is positioned at the below of the first sawtooth; When lock releases, with respect to interior pawl, hook plate and turn to while detaching lock porosity, fin and dovetail groove fail contact coordinate the gear shaping portion that can make interior pawl hook plate put into teeth groove portion that outer pawl hooks plate realize both up and down, move left and right; When lock releases, hook plate turn to and coordinate in lock porosity and when gear shaping portion that interior pawl hooks plate puts into outer pawl and hooks the teeth groove portion of plate, fin is engaged in dovetail groove with respect to interior pawl, both move up and down by locked.
Further in order to reduce the cover-up surface after this claw type sternum fixer is arranged on breastbone, make blood for better, make to heal faster and better, thereby described outer pawl hooks the air-vent that has a plurality of minimizings and the confession of breastbone contact area increase blood on the socket of plate.
A kind of structure that can realize the first sawtooth and the second engagement and disengaging is further provided, described lock porosity is provided with mating surface, described lock releases and is provided with fillet surface, and mating surface matches with fillet surface and makes the second sawtooth and the first engagement for use in strutting interior pawl hook plate.
Further, interior pawl hook plate and/or outer pawl hook plate and/or lock release and are made by industrially pure titanium material.
Adopted after technique scheme, claw type sternum fixer of the present invention adopts lock to release, and hook at interior pawl the lock porosity that on plate, design is released and coordinated with lock accordingly, lock is released combined with interior pawl hook plate, with pivot pin connection, its lock is released and hook energy activity up and down in plate at interior pawl, lock releases while making progress as unclamping shape, it while pressing, is locking shape, the opening that pawl hooks plate in lock releases while opening it dwindles, its gear shaping portion can put into freely up and down or the teeth groove portion that outer pawl hooks plate is slipped in left and right, claw type sternum fixer puts in place and while needing fixedly, only need press that locking releases enters lock porosity, utilize and lock the following fillet surface that releases, above it, size change is pressed into greatly in lock porosity interior pawl hook plate is strutted, after the first sawtooth interlock of its second sawtooth and outer pawl hook plate, make it reach rapidly locking, it is relative fixing with outer pawl hook plate that interior pawl hooks plate, such locking mechanism is without use instrument, more convenient and quicker when doctor performs the operation, safety, particularly need again to open immediately and can open rapidly rescue patient whenever and wherever possible, for rescuing life, win the quality time.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of claw type sternum fixer of the present invention when lock releases upwards;
Fig. 2 is claw type sternum fixer of the present invention when the axonometric chart that lock releases while pressing;
Fig. 3 is the structural representation that outer pawl of the present invention hooks plate;
Fig. 4 is the structural representation that interior pawl of the present invention hooks plate;
Fig. 5 is the structural representation that lock of the present invention releases;
Fig. 6 is the axonometric chart that lock of the present invention releases.
The specific embodiment
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation below.
As shown in Fig. 1～6, a kind of claw type sternum fixer, comprise that interior pawl hooks plate 201 and outer pawl hooks plate 101, outer pawl hooks the socket 1 on plate 101 with the 1-1 of spline portion, on interior pawl hook plate 201, there is the gear shaping portion 2 of pegging graft and coordinating with the 1-1 of teeth groove portion, interior pawl hook plate 201 is plugged in together by the cooperation of gear shaping portion 2 and the 1-1 of teeth groove portion, in the 1-1 of teeth groove portion, be provided with the first sawtooth 1-2, in gear shaping portion 2, be provided with the second sawtooth 2-1 coordinating with the first sawtooth 1-2, interior pawl hooks and on plate 201, is also provided with the lock cooperatively interacting and releases 3 and lock porosity 2-2, and lock releases and 3 is hinged on interior pawl and hooks on plate 201, when lock releases, 3 with respect to interior pawl, hook plate 201 and turn to while detaching lock porosity 2-2, the first sawtooth 1-2 of the 1-1 of teeth groove portion and the second sawtooth 2-1 of gear shaping portion 2 be separated in case interior pawl hook plate 201 and outer pawl hook plate 101 moving coordinate realize both upper and lower, move left and right, when lock releases, 3 for interior pawl, hook plate 201 and turn to and coordinate in lock porosity 2-2 time, the first sawtooth 1-2 of the 1-1 of teeth groove portion and the second sawtooth 2-1 of gear shaping portion 2 are meshed and reach that interior pawl hooks plate 201 and outer pawl hooks plate 101 tight fits.
In order to catch on better breastbone outer, so that open chest surgery, as shown in Figure 1, 2, interior pawl hooks plate 201 and also has pawl 4 in breastbone, and outer pawl hooks plate 101 and also has the outer pawl 5 of breastbone, and in breastbone, the outer pawl 5 of pawl 4 and breastbone matches and arranges to catch on breastbone outer.
In order to make out breast adjustment width wide, the scope of application is wide, is conducive to operator and selects when operation, and as shown in Figure 1, the 1-1 of teeth groove portion is for connecting the groove of whole socket 1.
In order to make interior pawl hook plate 201, can from putting into, all directions hook plate 101 by pawl when the snap close not, and in when its snap close, pawl hook plate 201 and outer pawl hook plate 101 and can not produce displacement phenomenon, as shown in Figure 1, interior pawl hooks between plate 201 and outer pawl hook plate 101 and is provided with position-limit mechanism, described position-limit mechanism comprises fin 6 and the dovetail groove 7 matching with corresponding fin 6, fin 6 is arranged in gear shaping portion 2, and be positioned at the below of the second sawtooth 2-1, the sidepiece of the 1-1 of teeth groove portion on socket 1 left by dovetail groove 7, and is positioned at the below of the first sawtooth 1-2; When lock releases, 3 with respect to interior pawl, hook plate 201 and turn to while detaching lock porosity 2-2, fin 6 and dovetail groove 7 fail contact coordinate the gear shaping portion 2 that can make interior pawl hook plate 201 put into the 1-1 of teeth groove portion that outer pawl hooks plate 101 realize both up and down, move left and right; When lock releases, 3 with respect to interior pawl, hook plate 201 and turn to and coordinate in lock porosity 2-2 and when gear shaping portion 2 that interior pawl hooks plate 201 puts into outer pawl and hooks the 1-1 of teeth groove portion of plate 101, fin 6 is engaged in dovetail groove 7, both move up and down by locked.
In order to reduce the cover-up surface after this claw type sternum fixer is arranged on breastbone, make blood for better, make to heal faster and better, as shown in Figure 3, thereby outer pawl hooks the air-vent 1-3 that has a plurality of minimizings and the confession of breastbone contact area increase blood on the socket 1 of plate 101.
On lock porosity 2-2, be provided with mating surface 2-2-1, lock releases on 3 and is provided with fillet surface 3-1, and mating surface 2-2-1 matches with fillet surface 3-1 and hooks plate 201 the second sawtooth 2-1 and the first sawtooth 1-2 are meshed for use in strutting interior pawl.
Interior pawl hook plate and/or outer pawl hook plate and/or lock release and are made by industrially pure titanium material TA3.
Operation principle of the present invention is as follows:
Claw type sternum fixer of the present invention adopts lock to release 3, and interior pawl hook on plate 201 design corresponding with lock the 3 lock porosity 2-2 that coordinate that release, lock is released to 3, and to hook plate 201 combined with interior pawl, with pivot pin connect make its lock release 3 at interior pawl, hook up and down can be movable in plate 201, lock release 3 upwards time for unclamping shape, it while pressing, is locking shape, when lock 3 openings that pawl hooks plate 201 in it while opening that release dwindle, its gear shaping portion 2 can put into freely up and down or the 1-1 of teeth groove portion that outer pawl hooks plate 101 is slipped in left and right, claw type sternum fixer puts in place and while needing fixedly, only need press lock and release and 3 enter and lock porosity 2-2, utilize and lock the 3 following fillet surface 3-1 that release, above it, size change is pressed into greatly in lock porosity 2-2 interior pawl hook plate 201 is strutted, after the first sawtooth 1-2 interlock of its second sawtooth 2-1 and outer pawl hook plate 101, make it reach rapidly locking, it is relative fixing with outer pawl hook plate 101 that interior pawl hooks plate 201, such locking mechanism is without use instrument, more convenient and quicker when doctor performs the operation, safety, particularly need again to open immediately and can open rapidly rescue patient whenever and wherever possible, for rescuing life, win the quality time.
Above-described specific embodiment; technical problem, technical scheme and beneficial effect that the present invention is solved further describe; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a claw type sternum fixer, comprise that interior pawl hooks plate (201) and outer pawl hooks plate (101), outer pawl hooks the socket (1) on plate (101) with spline portion (1-1), on interior pawl hook plate (201), there is the gear shaping portion (2) of pegging graft and coordinating with teeth groove portion (1-1), interior pawl hook plate (201) is plugged in together by the cooperation of gear shaping portion (2) and teeth groove portion (1-1), in teeth groove portion (1-1), be provided with the first sawtooth (1-2), in gear shaping portion (2), be provided with the second sawtooth (2-1) coordinating with the first sawtooth (1-2), it is characterized in that: on described interior pawl hook plate (201), be also provided with the lock cooperatively interacting and release (3) and lock porosity (2-2), and locking release (3) is hinged on interior pawl hook plate (201), when lock release (3) with respect to interior pawl, hook plate (201) and turn to while detaching lock porosity (2-2), first sawtooth (1-2) of described teeth groove portion (1-1) and second sawtooth (2-1) of gear shaping portion (2) be separated in case interior pawl hook plate (201) and outer pawl hook the moving cooperation of plate (101) realize both up and down, move left and right, when lock release (3) with respect to interior pawl, hook plate (201) and turn to and coordinate in lock porosity (2-2) time, first sawtooth (1-2) of described teeth groove portion (1-1) and second sawtooth (2-1) of gear shaping portion (2) are meshed and reach interior pawl hook plate (201) and outer pawl hook plate (101) tight fit.
2. claw type sternum fixer according to claim 1, it is characterized in that: described interior pawl hooks plate (201) and also has pawl (4) in breastbone, described outer pawl hooks plate (101) and also has the outer pawl (5) of breastbone, and in breastbone, the outer pawl (5) of pawl (4) and breastbone matches and arranges to catch on breastbone outer.
3. claw type sternum fixer according to claim 1 and 2, is characterized in that: described teeth groove portion (1-1) is for connecting the groove of whole socket (1).
4. claw type sternum fixer according to claim 1 and 2, it is characterized in that: described interior pawl hooks between plate (201) and outer pawl hook plate (101) and is provided with position-limit mechanism, described position-limit mechanism comprises fin (6) and the dovetail groove (7) matching with corresponding fin (6), fin (6) is arranged in gear shaping portion (2), and be positioned at the below of the second sawtooth (2-1), the sidepiece in the upper teeth groove portion (1-1) of socket (1) left by dovetail groove (7), and is positioned at the below of the first sawtooth (1-2); When lock release (3) with respect to interior pawl, hook plate (201) and turn to while detaching lock porosity (2-2), fin (6) and dovetail groove (7) fail contact the teeth groove portion (1-1) that coordinates the gear shaping portion (2) that can make interior pawl hook plate (201) to put into outer pawl hook plate (101) realize both up and down, move left and right; When lock release (3) with respect to interior pawl, hook plate (201) and turn to and coordinate into lock porosity (2-2) in and when gear shaping portion (2) that interior pawl hooks plate (201) puts into the teeth groove portion (1-1) of outer pawl hook plate (101), fin (6) is engaged in dovetail groove (7).
5. claw type sternum fixer according to claim 1 and 2, is characterized in that: described outer pawl hook plate (101) socket (1) thus on have the air-vent (1-3) of a plurality of minimizings and the confession of breastbone contact area increase blood.
6. claw type sternum fixer according to claim 1 and 2, it is characterized in that: on described lock porosity (2-2), be provided with mating surface (2-2-1), described lock releases on (3) and is provided with fillet surface (3-1), and mating surface (2-2-1) matches with fillet surface (3-1) and hooks plate (201) and make the second sawtooth (2-1) and the first sawtooth (1-2) engagement for use in strutting interior pawl.
7. claw type sternum fixer according to claim 1 and 2, is characterized in that: described interior pawl hooks plate (201) and/or outer pawl hooks plate (101) and/or locks release (3) and made by industrially pure titanium material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410370991.2A CN104107084B (en) | 2014-07-30 | 2014-07-30 | Claw type sternum fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410370991.2A CN104107084B (en) | 2014-07-30 | 2014-07-30 | Claw type sternum fixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104107084A true CN104107084A (en) | 2014-10-22 |
| CN104107084B CN104107084B (en) | 2016-11-09 |
Family
ID=51704207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410370991.2A Active CN104107084B (en) | 2014-07-30 | 2014-07-30 | Claw type sternum fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104107084B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104352271A (en) * | 2014-12-10 | 2015-02-18 | 常州华森医疗器械有限公司 | Patella fixer |
| CN104688308A (en) * | 2015-03-03 | 2015-06-10 | 常州华森医疗器械有限公司 | Sternum folding fixator easy to disassemble |
| CN106798591A (en) * | 2017-03-11 | 2017-06-06 | 苏州爱得科技发展股份有限公司 | A kind of sternal bar |
| EP3730080A1 (en) | 2019-04-23 | 2020-10-28 | Changzhou Waston Medical Appliance Co., Ltd | Quick release sternum closing fixator |
| USD996615S1 (en) | 2019-01-09 | 2023-08-22 | Mavrek Medical, Llc | Sternal closure device with dual locking mechanism |
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| EP2699180B1 (en) * | 2012-06-08 | 2015-04-15 | Medxpert GmbH | Multidirectional chest wall stabilization |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104352271A (en) * | 2014-12-10 | 2015-02-18 | 常州华森医疗器械有限公司 | Patella fixer |
| CN104688308A (en) * | 2015-03-03 | 2015-06-10 | 常州华森医疗器械有限公司 | Sternum folding fixator easy to disassemble |
| CN106798591A (en) * | 2017-03-11 | 2017-06-06 | 苏州爱得科技发展股份有限公司 | A kind of sternal bar |
| USD996615S1 (en) | 2019-01-09 | 2023-08-22 | Mavrek Medical, Llc | Sternal closure device with dual locking mechanism |
| EP3730080A1 (en) | 2019-04-23 | 2020-10-28 | Changzhou Waston Medical Appliance Co., Ltd | Quick release sternum closing fixator |
| US11109901B2 (en) | 2019-04-23 | 2021-09-07 | Changzhou Waston Medical Appliance Co., Ltd | Quick release sternum closing fixator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104107084B (en) | 2016-11-09 |
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