CN114767187B - Sternum fixing device for cardiac surgery - Google Patents
Sternum fixing device for cardiac surgery Download PDFInfo
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- CN114767187B CN114767187B CN202210717449.4A CN202210717449A CN114767187B CN 114767187 B CN114767187 B CN 114767187B CN 202210717449 A CN202210717449 A CN 202210717449A CN 114767187 B CN114767187 B CN 114767187B
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- 210000001562 sternum Anatomy 0.000 title claims abstract description 36
- 238000007675 cardiac surgery Methods 0.000 title claims abstract description 20
- 210000003205 muscle Anatomy 0.000 claims abstract description 17
- 210000000038 chest Anatomy 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 2
- 208000027418 Wounds and injury Diseases 0.000 abstract description 10
- 206010052428 Wound Diseases 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000029663 wound healing Effects 0.000 abstract description 2
- 230000001054 cortical effect Effects 0.000 abstract 1
- 210000003491 skin Anatomy 0.000 description 19
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000000747 cardiac effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009958 sewing Methods 0.000 description 3
- 210000002615 epidermis Anatomy 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000000115 thoracic cavity Anatomy 0.000 description 2
- 208000036829 Device dislocation Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004801 process automation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0206—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B2017/0237—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for heart surgery
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Surgical Instruments (AREA)
Abstract
The invention discloses a sternum fixing device for cardiac surgery, which relates to the field of sternum fixing for cardiac surgery and solves the problem that when the existing sternum fixing device for cardiac surgery is used, the sternum and the cortical muscle are directly supported towards two sides, so that the wound is continuously torn too large, and the sternum fixing device for cardiac surgery comprises a driving device, a clamping device, a pulling device and two groups of supporting rods, wherein the two groups of supporting rods are fixedly connected with a device box, and a supporting plate for supporting and fixing the sternum is fixedly connected onto the device box, reduces the wound, and is beneficial to the rapid suture and the wound healing in the later period.
Description
Technical Field
The invention relates to the technical field of sternum fixation in cardiac surgery, in particular to a sternum fixing device for cardiac surgery.
Background
Since Gebin began the first open-heart surgery with extracorporeal circulation in 1956, cardiac surgeons routinely used a median thoracic incision. Although there have been many attempts by surgeons to perform cardiac procedures, it is currently still generally accepted that the thoracic median incision is the most safe and well-exposed one of the cardiac procedures. The median incision of the chest needs to split the sternum longitudinally, so that the heart, blood vessels and other tissues are exposed for operation, and after the sternum is split, the sternum fixing device is needed to pull or push the longitudinally split sternum towards two sides, so that the visual field of the heart is enlarged, and the operation is convenient.
When the existing sternum fixing device for cardiac surgery is used for supporting a sternum, the sternum and the epidermis on the upper layer are directly pulled to two sides together, and at the moment, the skin and the muscle between the sternum and the epidermis on the upper layer are torn to two sides, so that the opening is too large.
Disclosure of Invention
The present invention is directed to a sternum fixation device for cardiac surgery that facilitates reduction of wound tearing injury, and solves the above-mentioned problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a sternum fixing device for cardiac surgery comprises a driving device, a clamping device, a pulling device and two sets of supporting rods, wherein two sets of supporting rods are fixedly connected with a device box, the device box is fixedly connected with a supporting plate for supporting and fixing a sternum, the driving device is arranged on the supporting rods and is used for driving the two sets of supporting rods to slide and open towards two sides to complete the supporting and fixing of the sternum, the clamping device is arranged at two ends of the device box and is used for clamping and fixing muscle skins at two ends of a chest opening of a patient at the initial stage of the two-side sliding of the supporting plate, the pulling device is arranged in the device box and is used for linking the clamping device to rotate inwards to pull when the sternum supporting plate continuously opens towards two sides, so that the force for tearing two sides of the chest opening is reduced, be convenient for press from both sides the skin muscle of both sides tightly fixedly at the initial stage that supports, and along with lasting strutting, the device operation is dragged in the linkage, the clamping device who drives both sides slowly folds to the centre, thereby reduce the power of tearing of skin opening part to both sides, reduce the wound, be favorable to the healing of sewing up fast and wound in later stage, the device easy operation is swift, need not artifical too much operation and can realize accomplishing fixed and inwards drawing together the effect strutting the in-process automation linkage, the security of work efficiency and operation has been improved, and convenient to use.
Preferably, drive arrangement includes the carriage, and is two sets of the bracing piece all with carriage sliding connection, the carriage internal rotation is connected with the dwang, set up two sets of thread groove that screw thread opposite direction on the dwang, it is two sets of the bracing piece respectively with two sets of thread groove threaded connection, be equipped with in the device box and be used for the dwang rotates the drive the bracing piece is linked when removing clamping device with pull the linkage that the device moved backward, be convenient for drive bracing piece and backup pad and remove the support.
Preferably, the linkage piece includes first belt, the bracing piece internal rotation is connected with first ring gear, seted up on the dwang with first ring gear sliding connection's guide way, the bracing piece internal rotation be connected with first ring gear engaged with first gear, the device groove has been seted up in the device box, device inslot internal rotation is connected with the gear post, first belt with first gear with the equal transmission of gear post is connected, the gear post with clamping device with it all connects to drag the device, is convenient for drag the device operation at the in-process linkage clamping device box that supports.
Preferably, the clamping device comprises two groups of clockwork spring rotating shafts connected with the device groove, the clockwork spring rotating shafts are connected with rotating blocks rotationally connected with the device groove, the rotating block is fixedly connected with a device block, a lifting groove is arranged in the device block, a first clamping block and a second clamping block are connected in the lifting groove in a sliding manner, the first clamping block is fixedly connected with a first rack which is in sliding connection with the lifting groove, the second clamping block is fixedly connected with a second rack which is in sliding connection with the lifting groove, a second gear meshed with the first rack and the second rack is rotationally connected in the lifting groove, the device groove is internally provided with a driving piece which is used for linking the first clamping block and the second clamping block to move oppositely for clamping at the initial stage of rotation of the gear column, so that the skin muscles at two sides can be clamped and fixed at the initial stage of supporting.
Preferably, the driving piece includes with the rolling disc that the device groove is connected rotates, coaxial fixedly connected with third gear on the rolling disc, device inslot sliding connection have with third gear engaged with third rack, the first stay cord of the top fixedly connected with of first clamp piece, first stay cord runs through the device box with the rolling block, and with the device box with the equal sliding connection of rolling block, be equipped with on the third rack and be used for the pulling first stay cord to stop the control of pulling after pulling certain pulling force, be convenient for press from both sides tight piece and the tight piece of second clamp in gear post pivoted initial stage linkage and move in opposite directions and press from both sides tightly.
Preferably, the control member includes a plurality of second pull ropes, mutually-communicated sliding grooves are formed in the third gear and the rotating disc, a sliding column is slidably connected in the sliding groove, a traction block is fixedly connected to a side surface of the third rack, a middle portion of the first pull rope penetrates through the traction block and is slidably connected with the traction block, one end of the first pull rope, which is far away from the first clamping block, is fixedly connected with a side surface of the sliding column, a plurality of first sliding grooves are formed in the rotating disc, a first tooth block meshed with the gear column is slidably connected in each of the first sliding grooves, a first spring fixedly connected with the first sliding grooves is fixedly connected to the first tooth block, one end of the second pull rope is fixedly connected with the first tooth block, and the other end of the second pull rope is fixedly connected with a side surface of the sliding column, so as to pull the first pull rope, and stops pulling after a certain pulling force is reached.
Preferably, it includes a plurality of second tooth pieces to drag the device, set up the drive groove in the turning block, it is a plurality of the equidistant distribution of second tooth piece and with drive groove sliding connection, drive inslot sliding connection with the tight piece fixed connection's of second lifting disk, seted up on the second tooth piece with lifting disk sliding connection's is domatic, the device inslot is equipped with and is used for the roll-off of second tooth piece the linkage makes during the drive groove the turning block pivoted rotates the piece, is convenient for drag the skin muscle of both sides to the inboard gradually after strutting to a certain degree, reduces the middle part and tears the position and lasts to the tearing pulling force of both sides.
Preferably, the rotating part comprises a second belt, a first rotating shaft and a second rotating shaft are connected to the device in a rotating mode in the groove, a fourth gear meshed with the gear column is connected to the device in the rotating mode in the groove, the second belt is in transmission connection with the fourth gear and the first rotating shaft, a first bevel gear is fixedly connected to the first rotating shaft coaxially, a second bevel gear meshed with the first bevel gear is fixedly connected to the second rotating shaft coaxially, a fifth gear meshed with the second toothed block is fixedly connected to the second rotating shaft coaxially, and the rotating block is enabled to rotate through linkage when the second toothed block slides out of the driving groove conveniently.
Preferably, the bottom of the second clamping block is fixedly connected with a plurality of inserting nails, so that the skin muscle can be conveniently inserted and fixed, and meanwhile, the inserting position can be eliminated in the subsequent sewing, and the influence is small.
Compared with the prior art, the invention has the beneficial effects that:
the invention solves the problem that the existing sternum fixing device for cardiac surgery can support the sternum and the outer skin muscles to two sides directly when in use, so that the wound is continuously torn too big, the skin muscles on two sides can be conveniently clamped and fixed at the initial stage of supporting through arranging the driving device, the clamping device and the pulling device, and the pulling device is linked to operate along with the continuous stretching, so that the clamping devices on two sides are driven to be slowly folded towards the middle, the tearing force towards two sides at the skin opening is reduced, the wound is reduced, the rapid suturing and the wound healing at the later stage are facilitated, the device is simple and rapid to operate, the fixing and inward stretching effects can be automatically completed in a linkage manner in the stretching process without excessive manual operation, the working efficiency and the safety of the surgery are improved, and the use is convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of area A of FIG. 2;
FIG. 4 is a cross-sectional view of the overall construction of the present invention;
FIG. 5 is an enlarged view of area B of FIG. 4;
FIG. 6 is an enlarged view of area C of FIG. 4;
FIG. 7 is a schematic view of a clamping device according to the present invention;
FIG. 8 is an enlarged view of area D of FIG. 7;
FIG. 9 is an enlarged view of area E in FIG. 7;
FIG. 10 is a schematic view of the internal structure of the present invention;
FIG. 11 is an enlarged view of area F of FIG. 10;
fig. 12 is a schematic view of the pulling device of the present invention.
In the figure: 1-a support bar; 2-a device cartridge; 3-a support plate; 4-a drive device; 5-a clamping device; 6-pulling the device; 7-a sliding frame; 8-rotating the rod; 9-thread groove; 10-a linkage; 11-a first belt; 12-a first toothed ring; 13-a guide groove; 14-a first gear; 15-device slot; 16-gear column; 17-a spring rotating shaft; 18-a turning block; 19-a device block; 20-a lifting groove; 21-a first clamping block; 22-a second clamping block; 23-a first rack; 24-a second rack; 25-a second gear; 26-a drive member; 27-a rotating disc; 28-a third gear; 29-a third rack; 30-a first pull cord; 31-a control member; 32-a second draw cord; 33-a sliding groove; 34-a sliding column; 35-a traction block; 36-a first runner; 37-a first tooth block; 38-a first spring; 39-a second tooth block; 40-a drive slot; 41-lifting disc; 42-slope surface; 43-a rotating member; 44-a second belt; 45-a first rotating shaft; 46-a second rotating shaft; 47-fourth gear; 48-a first bevel gear; 49-second bevel gear; 50-a fifth gear; 51-plug pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-6, there is shown a sternum fixing device for cardiac surgery, which comprises a driving device 4, a clamping device 5, a pulling device 6, and two sets of support rods 1, wherein the two sets of support rods 1 are fixedly connected with a device box 2, the device box 2 is fixedly connected with a support plate 3 for supporting and fixing the sternum, the driving device 4 is mounted on the support rods 1, used for driving the two groups of supporting rods 1 to slide and open towards two sides to complete the supporting and fixing of the sternum, the clamping devices 5 are arranged at two ends of the device box 2, for clamping and fixing the muscle skin at the two ends of the chest opening of the patient at the initial stage of the sliding of the supporting plate 3 to the two sides, the pulling device 6 is arranged in the device box 2, when the supporting plate 3 continuously struts the sternum towards two sides, the clamping device 5 is linked to rotate and pull inwards to a certain degree, so that the tearing force at two sides of the chest opening is reduced.
Referring to fig. 2-6, the driving device 4 shown in the drawings includes a sliding frame 7, two sets of support rods 1 are slidably connected to the sliding frame 7, a rotating rod 8 is rotatably connected to the sliding frame 7, two sets of thread grooves 9 with opposite thread directions are formed in the rotating rod 8, the two sets of support rods 1 are respectively in threaded connection with the two sets of thread grooves 9, and a linkage member 10 for linking the clamping device 5 and the pulling device 6 to move backward when the rotating rod 8 rotates to drive the support rods 1 to move is disposed in the device box 2.
Referring to fig. 4-6, a linkage 10 shown in the figure includes a first belt 11, a first gear ring 12 is rotatably connected to a support rod 1, a guide groove 13 slidably connected to the first gear ring 12 is formed in a rotating rod 8, a first gear 14 engaged with the first gear ring 12 is rotatably connected to the support rod 1, a device groove 15 is formed in a device box 2, a gear column 16 is rotatably connected to the device groove 15, the first belt 11 is in transmission connection with the first gear 14 and the gear column 16, and the gear column 16 is connected to a clamping device 5 and a pulling device 6.
In this embodiment, the supporting plates 3 on both sides are inserted between the sternums to be spread, the rotating rod 8 is rotated to drive the supporting rods 1 on both sides to move in opposite directions under the action of the thread grooves 9, the supporting rods 1 slide in the sliding frame 7 to drive the device box 2 to slide with the supporting plates 3, so as to gradually spread and fix the sternums on both sides, meanwhile, the rotating rod 8 drives the first toothed ring 12 to rotate continuously in the supporting rod 1 through the guide groove 13 to drive the first gear 14 to rotate, the first gear 14 drives the first belt 11 to drive the gear post 16 to rotate continuously, so as to link the clamping device 5 and the pulling device 6 to operate, the clamping device 5 clamps and fixes the skin muscles on both sides at the initial stage of supporting, and the pulling device 6 operates in a linked manner to drive the clamping devices 5 on both sides to fold slowly towards the middle along with the continuous spreading, thereby reduce the skin opening part and to the power of tearing of both sides, reduce the wound, be favorable to the quick healing of sewing up and wound in later stage, the device easy operation is swift, need not artifical too much operation and can realize accomplishing fixed and the effect of drawing together inwards in the automatic linkage of in-process of strutting, has improved the security of work efficiency and operation, facilitates the use.
Example 2
Referring to fig. 7-9 and 12 for describing embodiment 2, this embodiment further describes embodiment 1, the illustrated clamping device 5 includes two sets of spring shafts 17 connected to the device groove 15, the spring shafts 17 are connected to rotating blocks 18 rotatably connected to the device groove 15, the rotating blocks 18 are fixedly connected to device blocks 19, lifting grooves 20 are formed in the device blocks 19, first clamping blocks 21 and second clamping blocks 22 are slidably connected to the lifting grooves 20, a plurality of inserting nails 51 are fixedly connected to bottoms of the second clamping blocks 22, first racks 23 slidably connected to the lifting grooves 20 are fixedly connected to the first clamping blocks 21, second racks 24 slidably connected to the lifting grooves 20 are fixedly connected to the second clamping blocks 22, second gears 25 engaged with the first racks 23 and the second racks 24 are rotatably connected to the lifting grooves 20, and the first clamping blocks 21 and the second clamping blocks 22 are moved toward each other for initial stage of rotation of the gear column 16 in the device groove 15 A clamped drive member 26.
Referring to fig. 7-11, the driving member 26 shown in the figure includes a rotating disc 27 rotatably connected to the device slot 15, a third gear 28 coaxially and fixedly connected to the rotating disc 27, a third rack 29 slidably connected to the device slot 15 and engaged with the third gear 28, a first pulling rope 30 fixedly connected to a top end of the first clamping block 21, the first pulling rope 30 penetrating through the device case 2 and the rotating block 18 and slidably connected to both the device case 2 and the rotating block 18, and a control member 31 provided on the third rack 29 for pulling the first pulling rope 30 and stopping the pulling after the first pulling rope is pulled to a certain pulling force.
Referring to fig. 7-9, a control member 31 shown in the figure includes a plurality of second pulling ropes 32, sliding grooves 33 are formed in the third gear 28 and the rotating disc 27, the sliding grooves 33 are communicated with each other, sliding columns 34 are slidably connected in the sliding grooves 33, a traction block 35 is fixedly connected to a side surface of the third rack 29, a middle portion of each first pulling rope 30 penetrates through the traction block 35 and is slidably connected with the traction block 35, one end of each first pulling rope 30, which is far away from the first clamping block 21, is fixedly connected with a side surface of the corresponding sliding column 34, a plurality of first sliding grooves 36 are formed in the rotating disc 27, first tooth blocks 37, which are engaged with the gear column 16, are slidably connected in the first sliding grooves 36, first springs 38 fixedly connected with the first sliding grooves 36 are fixedly connected to the first tooth blocks 37, one end of each second pulling rope 32 is fixedly connected with the first tooth block 37, and the other end of each second pulling rope is fixedly connected with a side surface of the corresponding sliding column 34.
In this embodiment, the first clamping block 21 and the second clamping block 22 are respectively disposed on the upper and lower sides of the skin muscle, at this time, the first pulling rope 30 is in a loose state, the first spring 38 ejects the first tooth block 37 to engage with the gear column 16, during the process of spreading the sternum, the gear column 16 rotates to drive the first tooth block 37 to rotate the rotating disc 27, the rotating disc 27 drives the third gear 28 to rotate, thereby driving the third rack 29 to slide in the device slot 15 to drive the pulling block 35 to slide, the pulling block 35 pulls the middle of the first pulling rope 30 to move, and gradually increases the pulling force on the first pulling rope 30, so that the first pulling rope 30 drives the first clamping block 21 to move upward, the first clamping block 21 moves upward to push the first rack 23 to move upward to drive the second gear 25 to rotate, the second gear 25 drives the second rack 24 to move downward, thereby moving the second clamping block 22 downward, and inserts the insertion nail 51 into the skin to increase the fixing degree, the skin-inserting position of the inserting nail 51 can be used in the later suturing process, no additional damage can be caused, when the first clamping block 21 and the second clamping block 22 are clamped to a certain extent, the first clamping block 21 is difficult to move upwards continuously, and at this time, the first pulling rope 30 is pulled, so that the pulling force of the other end of the first pulling rope 30 to the sliding column 34 is increased, the sliding column 34 slides in the sliding groove 33 to pull the second pulling rope 32, so that the second pulling rope 32 pulls the first tooth block 37 to slide into the first sliding slot 36, compresses the first spring 38, thereby gradually releasing the meshing relationship with the gear column 16, and then the gear column 16 continuously rotates to continuously impact the first tooth block 37, so as to drive the first pull rope 30 to continuously give a certain pulling force to the first clamping block 21, prevent loosening in the clamping process, at the same time, the plug pins 51 of the second clamping block 22 are already inserted into the skin muscle and cannot be easily released.
Example 3
Referring to fig. 10-12 to describe embodiment 3, in this embodiment, a further description is given to embodiment 1, in the drawing, the pulling device 6 includes a plurality of second tooth blocks 39, a driving groove 40 is formed in the rotating block 18, the second tooth blocks 39 are distributed at equal intervals and are slidably connected with the driving groove 40, a lifting disc 41 fixedly connected with the second clamping block 22 is slidably connected in the driving groove 40, a slope 42 slidably connected with the lifting disc 41 is formed on the second tooth block 39, and a rotating member 43 for rotating the rotating block 18 by interlocking when the second tooth block 39 slides out of the driving groove 40 is arranged in the device groove 15.
Referring to fig. 10-12, the rotating member 43 shown in the drawings includes a second belt 44, a first rotating shaft 45 and a second rotating shaft 46 are rotatably connected in the device groove 15, a fourth gear 47 engaged with the gear column 16 is rotatably connected in the device groove 15, the second belt 44 is in transmission connection with both the fourth gear 47 and the first rotating shaft 45, a first bevel gear 48 is coaxially and fixedly connected to the first rotating shaft 45, a second bevel gear 49 engaged with the first bevel gear 48 is coaxially and fixedly connected to the second rotating shaft 46, and a fifth gear 50 engaged with the second gear block 39 is coaxially and fixedly connected to the second rotating shaft 46.
In this embodiment, the lifting disc 41 is driven to move downwards in the process of moving downwards and clamping the second clamping block 22, when the inserting nail 51 is inserted to a certain extent, the supporting plate 3 has moved a certain distance at this time, the bottom of the lifting disc 41 moves downwards to push the slope surface 42 to make the second tooth block 39 slide out of the driving groove 40 and mesh with the fifth gear 50, at this time, the gear column 16 rotates to drive the fourth gear 47 to rotate, so as to drive the second belt 44 to rotate the first rotating shaft 45, the first rotating shaft 45 drives the first bevel gear 48 to rotate, the first bevel gear 48 drives the second bevel gear 49 to rotate, the second bevel gear 49 drives the second rotating shaft 46 to rotate, so as to make the fifth gear 50 rotate, the fifth gear 50 drives the second tooth block 39 to make the rotating blocks 18 on both sides rotate inwards, so as to gradually gather skin muscles on both sides inwards, reduce the tearing force at the opening in the middle part, and reduce the damage caused by tearing, in the rotating process, a clockwork spring arranged in the clockwork spring rotates to compress, when the support is released, the clockwork spring rotates to drive the rotating block 18 to open towards two sides to complete reset, the support rods 1 at two sides move to the middle part to release the support for the sternum, at the moment, the first clamping block 21 and the second clamping block 22 still clamp skin muscles, the top end of the extended first rack 23 is pressed downwards, so that the first clamping block 21 moves downwards, meanwhile, the second gear 25 drives the second clamping block 22 to move upwards to release the insertion and fixation for the skin muscles, meanwhile, the first clamping block 21 moves downwards to pull the first pull rope 30, so that the third rack 29 and the third gear 28 move reversely to complete reset, and when the pressing is stopped, the first spring 38 pushes the first tooth block 37 to extend out to be meshed with the gear column 16, so that the reset can be completed.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A sternal fixation device for cardiac surgery, comprising:
the device comprises two groups of supporting rods (1), wherein device boxes (2) are fixedly connected to the two groups of supporting rods (1), and supporting plates (3) for supporting and fixing the sternum are fixedly connected to the device boxes (2);
further comprising:
the driving device (4) is arranged on the supporting rods (1) and used for driving the two groups of supporting rods (1) to slide to the two sides and open to complete supporting and fixing of the sternum;
the clamping devices (5) are arranged at two ends of the device box (2) and are used for clamping and fixing muscle skins at two ends of the chest opening of the patient at the initial stage of sliding the supporting plate (3) to two sides;
the pulling device (6) is installed in the device box (2) and used for linking and carrying out inward rotation pulling on the clamping device (5) to a certain extent when the supporting plate (3) continuously stretches the sternum towards two sides, so that the force for tearing two sides of the chest opening is reduced;
the driving device (4) comprises a sliding frame (7), two groups of supporting rods (1) are slidably connected with the sliding frame (7), a rotating rod (8) is rotatably connected in the sliding frame (7), two groups of thread grooves (9) with opposite thread directions are formed in the rotating rod (8), the two groups of supporting rods (1) are respectively in threaded connection with the two groups of thread grooves (9), and a linkage part (10) for linking the clamping device (5) and the pulling device (6) to move backwards when the rotating rod (8) rotates to drive the supporting rods (1) to move is arranged in the device box (2);
linkage (10) include first belt (11), bracing piece (1) internal rotation is connected with first ring gear (12), seted up on dwang (8) with first ring gear (12) sliding connection's guide way (13), bracing piece (1) internal rotation be connected with first ring gear (12) engaged with first gear (14), device groove (15) have been seted up in device box (2), device groove (15) internal rotation is connected with gear post (16), first belt (11) with first gear (14) with gear post (16) all transmit and connect, gear post (16) with clamping device (5) with it all connects to pull device (6).
2. A sternal fixation device for cardiac surgery as in claim 1, wherein: the clamping device (5) comprises two groups of spring rotating shafts (17) connected with the device groove (15), the spring rotating shafts (17) are connected with rotating blocks (18) rotatably connected with the device groove (15), the rotating blocks (18) are fixedly connected with device blocks (19), lifting grooves (20) are formed in the device blocks (19), first clamping blocks (21) and second clamping blocks (22) are slidably connected in the lifting grooves (20), first racks (23) slidably connected with the lifting grooves (20) are fixedly connected on the first clamping blocks (21), second racks (24) slidably connected with the lifting grooves (20) are fixedly connected on the second clamping blocks (22), and second gears (25) meshed with the first racks (23) and the second racks (24) are rotatably connected in the lifting grooves (20), and a driving piece (26) for linking the first clamping block (21) and the second clamping block (22) to move oppositely for clamping in the initial stage of rotation of the gear column (16) is arranged in the device groove (15).
3. A sternal fixation device for cardiac surgery as in claim 2, wherein: the driving piece (26) comprises a rotating disc (27) rotatably connected with the device groove (15), a third gear (28) is coaxially and fixedly connected to the rotating disc (27), a third rack (29) meshed with the third gear (28) is slidably connected to the device groove (15), a first pull rope (30) is fixedly connected to the top end of the first clamping block (21), the first pull rope (30) penetrates through the device box (2) and the rotating block (18), the first pull rope (30) is slidably connected with the device box (2) and the rotating block (18), and a control piece (31) used for pulling the first pull rope (30) and stopping pulling after certain pulling force is pulled is arranged on the third rack (29).
4. A sternal fixation device for cardiac surgery as in claim 3, wherein: the control piece (31) comprises a plurality of second pull ropes (32), sliding grooves (33) which are communicated with each other are formed in the third gear (28) and the rotating disc (27), sliding columns (34) are connected in the sliding grooves (33) in a sliding mode, a traction block (35) is fixedly connected to the side face of the third rack (29), the middle of the first pull rope (30) penetrates through the traction block (35) and is in sliding connection with the traction block (35), one end, far away from the first clamping block (21), of the first pull rope (30) is fixedly connected with the side face of the sliding column (34), a plurality of first sliding grooves (36) are formed in the rotating disc (27), first tooth blocks (37) which are meshed with the gear columns (16) are connected in the first sliding grooves (36) in a sliding mode, first springs (38) which are fixedly connected with the first sliding grooves (36) are fixedly connected to the first tooth blocks (37), one end of the second pull rope (32) is fixedly connected with the first tooth block (37), and the other end of the second pull rope is fixedly connected with the side face of the sliding column (34).
5. A sternal fixation device for cardiac surgery according to claim 4, wherein: drag device (6) and include a plurality of second tooth piece (39), seted up drive groove (40) in turning block (18), it is a plurality of second tooth piece (39) equidistant distribution and with drive groove (40) sliding connection, drive groove (40) sliding connection with the second presss from both sides tight piece (22) fixed connection's lifter disc (41), set up on second tooth piece (39) with lifter disc (41) sliding connection's domatic (42), be equipped with in device groove (15) and be used for second tooth piece (39) roll-off the linkage makes during drive groove (40) turning block (18) pivoted rotates piece (43).
6. A sternal fixation device for cardiac surgery as in claim 5, wherein: the rotating part (43) comprises a second belt (44), a first rotating shaft (45) and a second rotating shaft (46) are connected to the device groove (15) in a rotating mode, a fourth gear (47) meshed with the gear column (16) is connected to the device groove (15) in a rotating mode, the second belt (44) is in transmission connection with the fourth gear (47) and the first rotating shaft (45), a first bevel gear (48) is fixedly connected to the first rotating shaft (45) in a coaxial mode, a second bevel gear (49) meshed with the first bevel gear (48) is fixedly connected to the second rotating shaft (46) in a coaxial mode, and a fifth gear (50) meshed with the second tooth block (39) is fixedly connected to the second rotating shaft (46) in a coaxial mode.
7. A sternal fixation device for cardiac surgery as in claim 2, wherein: the bottom of the second clamping block (22) is fixedly connected with a plurality of inserting nails (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210717449.4A CN114767187B (en) | 2022-06-23 | 2022-06-23 | Sternum fixing device for cardiac surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210717449.4A CN114767187B (en) | 2022-06-23 | 2022-06-23 | Sternum fixing device for cardiac surgery |
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| Publication Number | Publication Date |
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| CN114767187A CN114767187A (en) | 2022-07-22 |
| CN114767187B true CN114767187B (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210717449.4A Active CN114767187B (en) | 2022-06-23 | 2022-06-23 | Sternum fixing device for cardiac surgery |
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| Country | Link |
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| CN (1) | CN114767187B (en) |
Citations (3)
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|---|---|---|---|---|
| CN2382367Y (en) * | 1999-01-06 | 2000-06-14 | 郑国强 | Sternum retractor for coronary artery bypass transplanting operation |
| CN113662603A (en) * | 2021-09-06 | 2021-11-19 | 刘培东 | Retractor for neurosurgery operation |
| CN216221524U (en) * | 2021-08-17 | 2022-04-08 | 西安市第三医院 | Flap retractor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7905840B2 (en) * | 2003-10-17 | 2011-03-15 | Nuvasive, Inc. | Surgical access system and related methods |
| CN204581371U (en) * | 2015-04-24 | 2015-08-26 | 蔡先启 | A kind of adjustable thoracic surgery machine for chest-opening |
| CN109998614B (en) * | 2019-05-14 | 2021-07-27 | 何江 | Adjustable sternum hook |
| CN114366190A (en) * | 2020-11-26 | 2022-04-19 | 中国人民解放军空军军医大学 | Rib retractor for thoracic surgeon |
| CN112451015A (en) * | 2020-12-10 | 2021-03-09 | 单晓丽 | Sternum expanding tool for cardiac surgery |
| CN112690842A (en) * | 2021-01-12 | 2021-04-23 | 王炳川 | Adjustable chest opener for general chest surgery |
-
2022
- 2022-06-23 CN CN202210717449.4A patent/CN114767187B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2382367Y (en) * | 1999-01-06 | 2000-06-14 | 郑国强 | Sternum retractor for coronary artery bypass transplanting operation |
| CN216221524U (en) * | 2021-08-17 | 2022-04-08 | 西安市第三医院 | Flap retractor |
| CN113662603A (en) * | 2021-09-06 | 2021-11-19 | 刘培东 | Retractor for neurosurgery operation |
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| CN114767187A (en) | 2022-07-22 |
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