CN113331888B - Posterior skull distraction drainage device - Google Patents

Abstract

The invention discloses a posterior skull distraction drainage device, which comprises an inflatable pillow, wherein the inflatable pillow is provided with a fixed shaft, the fixed shaft is rotatably connected with a first arc-shaped rod and a second arc-shaped rod, the end parts of the first arc-shaped rod and the second arc-shaped rod are rotatably connected with a base, and the base is connected with a fixed knob; the base is rotatably connected with a spreading knob, a spiral guide rail is fixed on the spreading knob, a radial sliding groove is formed in the base, the radial sliding groove is connected with a sliding plate in a sliding mode, the spiral guide rail is connected with a sliding block in a sliding mode, the sliding plate is connected with the sliding block, a transverse sliding groove is formed in the sliding plate, and connecting piles in sliding connection with the transverse sliding groove are fixed on the first arc-shaped rod and the second arc-shaped rod; the first arc-shaped rod and the second arc-shaped rod are both connected with a spreading claw. First arc pole and second arc pole use radial spout to carry out the equiangular as the center in this scheme and part, have solved among the prior art and strut the claw and make the inconsistent problem of incision both sides exposure degree, have improved the accuracy that the drainage tube was placed.

Description

Posterior skull distraction drainage device

Technical Field

The invention relates to the technical field of medical equipment, in particular to a posterior skull distraction drainage device.

Background

Neurosurgery is mainly used for treating nervous system diseases of brain, spinal cord and the like caused by trauma, for example, the cerebral hemorrhage and bleeding amount endanger life, the cerebral trauma caused by car accidents, or the brain is pressed by tumors and needs to be treated by operation, and the like. At present, the mastoid process spreader and the spreading forceps are commonly used for spreading, and the spreading claws at two sides balance the force application through the hinge points at the middle part. However, in practical situations, due to the difference of soft tissues on two sides or the inconsistent incision depth of doctors, the exposure degree of the two sides of the drainage position after being expanded may be inconsistent, one side of the drainage position is exposed too little, which may affect and hinder the placement of the drainage tube, and the other side of the drainage position is exposed too much, which may increase the infection risk.

Disclosure of Invention

The invention aims to provide a posterior cranium distraction drainage device, which solves the problem that the exposure degrees of two sides of an incision are inconsistent due to distraction claws in the prior art.

The scheme is as follows: the posterior skull distraction drainage device comprises a rack, wherein the rack is connected with an adjusting plate, the adjusting plate is fixedly connected with an inflatable pillow, the inflatable pillow is fixedly connected with a fixed shaft, the fixed shaft is rotatably connected with a first arc-shaped rod and a second arc-shaped rod, the end parts of the first arc-shaped rod and the second arc-shaped rod are rotatably connected with a base, an extension plate is fixed on the base, and the extension plate is in threaded connection with a fixed knob; the base is rotatably connected with a spreading knob, a spiral guide rail is fixedly connected to the spreading knob, a radial sliding groove is formed in the base along the radius direction, the radial sliding groove is slidably connected with a sliding plate, the spiral guide rail is slidably connected with a sliding block, the sliding plate is connected with the sliding block, a transverse sliding groove perpendicular to the radial sliding groove is formed in the sliding plate, and connecting piles slidably connected with the transverse sliding groove are fixed on the first arc-shaped rod and the second arc-shaped rod; all be connected with on first arc pole and the second arc pole and prop the claw subassembly, prop the claw subassembly including strutting the claw.

Has the advantages that: after the skull of the patient is placed on the inflatable pillow, the inflation quantity of the inflatable pillow is adjusted to adjust the height of the inflatable pillow; the fixing knob is rotated, the end part of the fixing knob is propped against the skull, and the fixing knob and the inflatable pillow are acted together to complete the fixing of the base and the skull. Then, the spreading knob is rotated, so that the sliding plate approaches to the center of the base along the radial sliding groove, in the process, the transverse sliding groove applies torque to the first arc-shaped rod and the second arc-shaped rod through the connecting pile, the first arc-shaped rod and the second arc-shaped rod rotate relative to the base, and the position and the moving direction of the connecting pile are limited by the transverse sliding groove, so that the first arc-shaped rod and the second arc-shaped rod can face opposite directions and are separated at equal angles by taking the radial sliding groove as the center. The first arc-shaped rod and the second arc-shaped rod drive the supporting claw assembly to move when being separated, so that the supporting operation is realized. Compared with the prior art, because first arc pole and the relative radial spout detached angle of second arc pole are the same constantly in this scheme, consequently, as long as radial spout corresponds the position of placing of drainage tube and fixes, so place the both sides of position at the drainage tube, strut the exposure degree that the claw propped up after opening and be the same, it is different to have avoided among the prior art both sides exposure degree, influences the problem that the drainage tube was placed. Simultaneously in this scheme first arc pole and second arc pole rotate back and cancel external force, can not take place to remove, guaranteed stability.

Further, be equipped with the third arc pole between first arc pole and the second arc pole, third arc pole and base fixed connection are connected with the drainage fixed subassembly that is used for fixed drainage tube on the third arc pole. In order to guarantee that the drainage fixing component is always located in the middle of the first arc-shaped rod and the second arc-shaped rod, the third arc-shaped rod can be arranged corresponding to the radial sliding groove, the drainage tube is fixed by the drainage fixing component after being placed and completed, and the drainage tube is prevented from moving.

Further, prop claw subassembly still include with first arc pole and second arc pole sliding connection's shift ring, shift ring and prop and open fixedly connected with connecting rod between the claw. The shift ring can carry out the endwise slip on first arc pole and second arc pole, places the position according to the drainage tube and adjusts, improves application scope.

Further, the drainage fixing component comprises a moving seat connected with the third arc-shaped rod in a sliding manner, a locking knob is arranged on the moving seat, the moving seat is connected with a movable chuck, and a clamping groove used for fixing the drainage tube is formed in the movable chuck. The movable seat is connected with the third arc-shaped rod in a sliding manner, so that the position of the movable chuck can be conveniently adjusted; after the position of the movable chuck is adjusted, the movable seat can be fixed on the third arc-shaped rod by the locking knob, so that the stability of the drainage tube after being placed is guaranteed.

Further, the movable chuck is rotationally connected with the movable seat. The movable chuck relatively moves the seat and rotates, can change the axial direction of draw-in groove, changes the contained angle between drainage tube and the third arc pole promptly, when removing the seat and very being close to the drainage tube and placing the position, can directly exert external force and rotate movable chuck to make the drainage tube end be in the drainage position, thereby need not loosen the adjustment of locking knob and remove the seat position, improved flexibility and efficiency. Specifically, the rotation between the movable chuck and the movable seat is self-tightening, and the relative rotation can be realized only by applying external force.

Furthermore, the cross sections of the middle parts of the first arc-shaped rod, the second arc-shaped rod and the third arc-shaped rod are circular. The movable ring and the movable seat can axially slide on the first arc-shaped rod, the second arc-shaped rod and the third arc-shaped rod and can also rotate in the circumferential direction of the movable ring and the movable seat to realize the function of adaptive adjustment and have more operation flexibility.

Furthermore, a silica gel pad is fixed on the inflatable pillow, and the end part of the fixing shaft is fixed with the silica gel pad. Compared with the inflatable pillow directly contacted with the skull, the silica gel cushion has more comfort.

Furthermore, a limiting rod is arranged between the connecting block and the sliding block; the limiting rod is fixed with the sliding block and is axially and slidably connected with the base, and the end part of the limiting rod can be abutted against the connecting block. When strutting the operation like this, can directly part first arc pole and second arc pole with the hand to both sides application of force earlier, then rotate earlier and strut the knob, the slider is close to the connecting block, and the gag lever post offsets the back with the connecting block, can restrict the position of connecting block, continues to rotate and strut the knob, still can finely tune the degree of strutting, and the operation is more laborsaving and quick, raises the efficiency.

Drawings

Fig. 1 is a schematic side perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic diagram of a back-to-back three-dimensional structure according to a first embodiment of the present invention.

Fig. 3 is an enlarged schematic view of the area a in fig. 2.

Fig. 4 is a schematic bottom view of a base according to an embodiment of the invention.

Fig. 5 is a schematic view of the structure of fig. 4 with the first and second curved bars removed.

Fig. 6 is a schematic cross-sectional structure diagram of a base according to an embodiment of the invention.

Fig. 7 is a schematic structural view of a drainage fixture assembly according to an embodiment of the invention.

Fig. 8 is a schematic cross-sectional view of a base according to a second embodiment of the invention.

In the figure: the device comprises arack 10, anadjusting groove 11, anadjusting knob 12, anadjusting plate 20, aninflatable pillow 21, asilica gel pad 22, afixed shaft 23, a first rotatingring 231, a second rotatingring 232, a first arc-shaped rod 31, a second arc-shaped rod 32, a third arc-shaped rod 33, a supportingclaw assembly 34, a movingring 341, a connectingrod 342, a supportingclaw 343, adrainage fixing assembly 35, a movingseat 351, alocking knob 352, amovable chuck 353, aclamping groove 36, abase 40, a supportingknob 41, aspiral guide rail 42, asliding plate 43, a radialsliding groove 44, a connectingshaft 45, a transversesliding groove 46, a connectingpile 47, a connectingblock 48, asliding block 49, an extendingplate 50, afixing knob 51 and alimiting rod 60.

Detailed Description

The examples are as follows:

example one

The embodiment provides a posterior skull distraction drainage device, which comprises aframe 10, wherein theframe 10 is connected with anadjusting plate 20, aninflation pillow 21 is fixed on the adjustingplate 20, and theinflation pillow 21 is connected with an inflation device, as shown in fig. 1. The upper surface of theinflatable pillow 21 is fixed with asilica gel pad 22, as shown in fig. 3, afixing shaft 23 is arranged at the edge of thesilica gel pad 22, and the upper end and the lower end of thefixing shaft 23 are respectively fixed with thesilica gel pad 22 and theinflatable pillow 21. The first rotatingring 231 and the second rotatingring 232 are sleeved on thefixed shaft 23, and the first rotatingring 231 and the second rotatingring 232 are rotatably connected with thefixed shaft 23 through bearings. Thefirst swivel 231 is fixedly connected with afirst arc rod 31, and thesecond swivel 232 is fixedly connected with asecond arc rod 32. A third arc-shaped rod 33 is arranged between the first arc-shaped rod 31 and the second arc-shaped rod 32, and the lower end of the third arc-shaped rod 33 is fixedly connected with thefixed shaft 23.

As shown in fig. 1 and 2, the upper ends of thefirst arc rod 31 and thesecond arc rod 32 are connected with abase 40, the upper end of thethird arc rod 33 is fixedly connected with the edge of thebase 40, one side of thebase 40, which faces away from thethird arc rod 33, is fixedly connected with anextension plate 50, and theextension plate 50 is in threaded connection with afixing knob 51. Referring to fig. 4 and 5, a connectingshaft 45 is fixed on the bottom surface of thebase 40, the connectingshaft 45 is coaxial with thefixed shaft 23, and the ends of the first arc-shaped rod 31 and the second arc-shaped rod 32 are rotatably connected with the connectingshaft 45.Radial chute 44 has been seted up along the radial direction tobase 40, andradial chute 44 is located the extension line ofthird arc pole 33, andradial chute 44 sliding connection has slidingplate 43, has seted uphorizontal chute 46 on thesliding plate 43, andhorizontal chute 46 is perpendicular withradial chute 44, as shown in fig. 4, equal fixedly connected with connectingpile 47 onfirst arc pole 31 and thesecond arc pole 32, two connectingpile 47 andhorizontal chute 46 cooperation and sliding connection. When thesliding plate 43 moves towards the center of thebase 40, the first arc-shaped rod 31 and the second arc-shaped rod 32 can be driven to be separated towards two sides by the transversesliding groove 46 and the connectingpile 47.

Thebase 40 is rotatably connected with a spreadingknob 41, as shown in fig. 6, a chamber is arranged inside thebase 40, aspiral guide rail 42 is fixed at one end of the spreadingknob 41 located in the chamber, and the track of thespiral guide rail 42 is shown by a dotted line in fig. 5. Thespiral guide rail 42 is connected with asliding block 49 in a sliding mode, thesliding plate 43 is fixedly connected with a connectingblock 48, the connectingblock 48 is connected with the radial slidinggroove 44 in a sliding mode, and thesliding block 49 is fixedly connected with the connectingblock 48.

As shown in fig. 2, thefirst arc rod 31 and thesecond arc rod 32 are both connected with a supportingjaw assembly 34, the supportingjaw assembly 34 includes amovable ring 341, and themovable ring 341 is sleeved on the middle portions of thefirst arc rod 31 and thesecond arc rod 32 and can slide along the axial direction of thefirst arc rod 31 and thesecond arc rod 32. The cross-sections of the first arc-shaped rod 31, the second arc-shaped rod 32 and the third arc-shaped rod 33 at the middle positions are circular, and the circular cross-sections account for at least half of the total length of the arc-shaped rods, so that themovable ring 341 can rotate on the first arc-shaped rod 31 and the second arc-shaped rod 32 in addition to axially sliding. The movingring 341 is fixedly connected with a connectingrod 342, and an end of the connectingrod 342 is fixed with a spreadingclaw 343.

Be equipped with thefixed subassembly 35 of drainage on thethird arc pole 33, as shown in fig. 7, thefixed subassembly 35 of drainage includes theremoval seat 351 withthird arc pole 33 sliding connection, has seted up threaded through hole on theremoval seat 351, and threaded through hole female connection has thelocking knob 352 that can offset withthird arc pole 33, and lockingknob 352 offsets withthird arc pole 33 and can realize removing the fixed ofseat 351 withthird arc pole 33. Move and rotate on theseat 351 and be connected with the regulating spindle, be fixed withmovable chuck 353 on the regulating spindle, be equipped with the draw-ingroove 36 that is used for fixed drainage tube on themovable chuck 353, the regulating spindle with remove and be equipped with the self-tightening ring of rubber material between theseat 351, the friction between multiplicable regulating spindle of self-tightening ring and theremoval seat 351 reduces the mobility ofmovable chuck 353 when having no exogenic action.

Suction pumps and other devices for drainage can be fixed on theframe 10. When the medical pillow works specifically, the head of a patient is placed on thesilica gel pad 22, theinflatable pillow 21 is inflated, and the inflation quantity is adjusted to adjust the height of theinflatable pillow 21. Thefixing knob 51 is rotated, thefixing knob 51 is pressed against the head of the patient and cooperates with theinflatable pillow 21 to realize the fixation of thebase 40 and the skull. Then, the doctor puts the two spreadingclaws 343 into the incision, and rotates the spreadingknob 41, as shown in fig. 4, 5 and 6, during the rotation of the spreadingknob 41, thespiral guide rail 42 drives thesliding plate 43 to move closer to the center of thebase 40 through the connectingblock 48 and thesliding block 49. The transversesliding groove 46 on thesliding plate 43 acts on the first arc-shaped rod 31 and the second arc-shaped rod 32 through the connectingpile 47, so that the first arc-shaped rod 31 and the second arc-shaped rod 32 are separated from each other at equal angles towards two sides by taking the third arc-shaped rod 33 as a center, and in the separation process, because the skull is fixed, the first arc-shaped rod 31 and the second arc-shaped rod 32 approximately surround the head of a patient to realize posterior skull distraction by pulling tissues at an incision through thedistraction claw 343, and the distraction size is controlled by the number of turns of therotation distraction knob 41.

Follow-up adjustment drainage fixedcomponent 35 is in the position onthird arc pole 33, puts into the intracranial position that needs the drainage with the drainage tube end, rotates again and removesseat 351 andactivity chuck 353 to the angle that can with the drainage tube adaptation, through the fixed position and the angle that removeseat 351 oflocking knob 352, puts into draw-ingroove 36 with the drainage tube at last and fixes, can carry out the drainage operation.

More specifically, the angle between the adjustingplate 20 and the horizontal plane can be adjusted in this embodiment. The implementation mode is that an adjustinggroove 11 is formed in theframe 10, a translation shaft is connected in the adjustinggroove 11 in a sliding mode, one end of the translation shaft is fixed with an adjustingplate 20, an adjustingknob 12 is connected to the other end of the translation shaft in a threaded mode, and translation shafts are arranged at two ends of the adjustingplate 20. Under the condition that the adjustingknob 12 is locked, the adjustingknob 12 is tightly abutted against theframe 10, and the adjustingplate 20 is fixed with theframe 10. Under the condition that adjustknob 12 loosens, adjustknob 12 does not support tightly withframe 10, and adjustingplate 20 can change and the horizontal plane between the angle, onshift ring 341 axial slide adjusts the basis, has further increased the mode of regulation of struttingclaw 343 and drainage department relative position, improves the flexibility of adjusting, and adjustingplate 20 still can slide alongadjustment tank 11 through the translation axle simultaneously to change the distance that adjustingplate 20 leaves the operation table.

Example two:

the difference from the first embodiment is that, as shown in fig. 8, a limitingrod 60 is disposed between the connectingblock 48 and the slidingblock 49, a through hole is disposed on the side wall of thebase 40, and the limitingrod 60 is axially slidably connected with the through hole. A threaded hole is formed in the slidingblock 49, a threaded section is arranged in the middle of the limitingrod 60, and the threaded section is in threaded connection with the threaded hole in the slidingblock 49. The left end of thestopper rod 60 may abut against the connectingblock 48.

Thus, when the distraction is performed, a doctor can directly grasp the first arc-shapedrod 31 and the second arc-shapedrod 32 with two hands to separate the first arc-shapedrod 31 and the second arc-shapedrod 32 from each other, and the first arc-shapedrod 31 and the second arc-shapedrod 32 are still centered on the third arc-shapedrod 33 due to the limitation of the transverse slidinggroove 46 on the slidingplate 43, and in the distraction process, the slidingplate 43 and the connectingblock 48 are close to the center of thebase 40. Then, the spreadingknob 41 is rotated, under the action of thespiral guide rail 42 and the limiting action of the limitingrod 60, the slidingblock 49 and the limitingrod 60 are drawn close to the center of the base 40 until the end of the limitingrod 60 abuts against the connectingblock 48, and compared with the first embodiment, the operation is more labor-saving and rapid. Meanwhile, the spreadingknob 41 can be continuously rotated on the basis, and the slidingblock 49 pushes the connectingblock 48 to move towards the center of the base 40 through the limitingrod 60, so that the fine adjustment effect of the spreading degree is realized.

The above are merely examples of the present invention, and common general knowledge of known specific structures and characteristics in the schemes is not described herein. The embodiments described above are only a part of the embodiments of the present invention, and not all of them. 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.

Claims (6)

1. The utility model provides a back cranium distraction drainage device, includes the frame, and the frame is connected with the regulating plate, its characterized in that: the adjustable drainage tube is characterized in that the adjusting plate is fixedly connected with an inflatable pillow, the inflatable pillow is fixedly connected with a fixed shaft, the fixed shaft is rotatably connected with a first arc-shaped rod and a second arc-shaped rod, a third arc-shaped rod is arranged between the first arc-shaped rod and the second arc-shaped rod, the third arc-shaped rod is connected with a drainage fixing assembly for fixing the drainage tube, the end parts of the first arc-shaped rod and the second arc-shaped rod are rotatably connected with a base, the third arc-shaped rod is fixedly connected with the base, an extending plate is fixed on the base, and the extending plate is in threaded connection with a fixing knob; the base is rotatably connected with a spreading knob, a spiral guide rail is fixedly connected to the spreading knob, a radial sliding groove is formed in the base in the radial direction and is located on an extension line of the third arc-shaped rod, a sliding plate is slidably connected to the radial sliding groove, a sliding block is slidably connected to the spiral guide rail, a connecting block is fixedly connected to the sliding plate, the connecting block is slidably connected with the radial sliding groove, the sliding block is fixedly connected with the connecting block, a transverse sliding groove perpendicular to the radial sliding groove is formed in the sliding plate, and connecting piles slidably connected with the transverse sliding groove are fixed on the first arc-shaped rod and the second arc-shaped rod; all be connected with on first arc pole and the second arc pole and prop the claw subassembly, prop the claw subassembly including strutting the claw.

2. The posterior distraction drainage device of claim 1, wherein: prop the claw subassembly and still include with first arc pole and second arc pole sliding connection's shift ring, shift ring and prop and open fixedly connected with connecting rod between the claw.

3. The posterior distraction drainage device of claim 2, wherein: the drainage fixing assembly comprises a moving seat which is connected with the third arc-shaped rod in a sliding mode, a locking knob is arranged on the moving seat, the moving seat is connected with a movable chuck, and a clamping groove used for fixing a drainage tube is formed in the movable chuck.

4. The posterior distraction drainage device of claim 3, wherein: the movable chuck is rotationally connected with the movable seat.

5. The posterior distraction drainage device of claim 4, wherein: the cross sections of the middle parts of the first arc-shaped rod, the second arc-shaped rod and the third arc-shaped rod are circular.

6. The posterior distraction drainage device of claim 5, wherein: the inflatable pillow is fixed with a silica gel pad, and the end part of the fixing shaft is fixed with the silica gel pad.

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