CN107714167A

CN107714167A - Pneumatic type laminectomy rongeur

Info

Publication number: CN107714167A
Application number: CN201610680201.XA
Authority: CN
Inventors: 吴同申
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-12
Filing date: 2016-08-12
Publication date: 2018-02-23

Abstract

A kind of pneumatic type laminectomy rongeur, upper pliers plate tail end is connected on cylinder push-rod, lower clamp piece tail end is connected and fixed on the bottom of cylinder front end, pass through the disengaging of the air flue switch control gases at high pressure in handle, utilize powerful thrust caused by gases at high pressure, pusher cylinder piston moves forward, by cylinder push-rod, by upper pliers plate, pushing tow moves forward, realize clamp piece jaw occlusion up and down, completion is cut to stinging for spinal lamina sclerotin, allow operator from originally will rely on hand grip could complete sting bone operation in free, dramatically reduce the working strength of operator, and then improve the stability and accuracy for stinging bone operation, significantly improve the speed and quality of spinal operation.

Description

Pneumatic type laminectomy rongeur

Technical field

The present invention relates to a kind of spinal surgery apparatus, specifically a kind of pneumatic type laminectomy rongeur.

Background technology

Laminectomy rongeur is that spinal surgery is most-often used, very important operating theater instruments, and current laminectomy rongeur is all It is that orthopedist completes to cut stinging for vertebral plate sclerotin by the grip of hand, very arduously, is especially carrying out multiple sections When vertebral plate stings bone, operator can feel that obvious hand is aching and limp, tired, slow down operative speed, influence the stability of operation technique And accuracy, the damage of spinal cord or nerve root can be caused when serious and causes serious consequence, therefore, design and offer are a kind of laborsaving Laminectomy rongeur can greatly improve the operative speed and surgical quality of spinal surgery.

The content of the invention

Doctor is needed to complete using hand grip the problem of cutting of stinging to vertebral plate bone for current laminectomy rongeur, this Invention provides a kind of labour-saving pneumatic type laminectomy rongeur, and doctor can be allowed to be freed from laborious operation by human hand.

In order to achieve the above object, the present invention designs a kind of pneumatic type laminectomy rongeur, is lived with gases at high pressure pusher cylinder Plug produces jacking force forward, can be engaged the jaw of upper and lower clamp piece, complete to cut stinging for vertebral plate bone.Below in conjunction with accompanying drawing pair The present invention is described further.

Brief description of the drawings

Fig. 1 is the overall appearance schematic diagram of the present invention.

In Fig. 1：A. upper pliers plate, clamp piece under B., C. cylinders, D. handles, E. switches.

Fig. 2 is cylinder, handle and the switch internal structural representation (positive central fore-and-aft vertical plane) of the present invention.

In Fig. 2：1. cylinder push-rod, 2. cylinder front walls, 3. cylinder leakage tester holes, 4. cylinder springs, 5. cylinder pistons, 6. pistons Block, 7. cylinder air chambers, 8. cylinder walls, 9. cylinder gas outlets, 10. cylinder air inlets, the 11. enterprising gas ports of switch, 12. switch-boxes Body, the lower air inlet of 13. switches, 14. air inlet pipe, 15. handles, 16. escape pipes, the lower gas outlet of 17. switches, 18. switch airways, 19. switch rod, 20. switch springs, the upper gas outlet of 21. switches.

Fig. 3 be when switch rod is pressed, air intake duct is opened when cylinder piston pushing tow forward schematic diagram.

Fig. 4 be when switch rod is unclamped, gas off-take is opened when the schematic diagram that is pushed back by spring of cylinder piston.

Fig. 5 is the dimensional structure diagram of the upper pliers plate of the present invention.

Fig. 6 is the dimensional structure diagram of the lower clamp piece of the present invention.

Schematic diagram when Fig. 7 is the switch rod pressing laggard airway open of the present invention.

Fig. 8 is schematic diagram when gas off-take is opened after the switch rod of the present invention unclamps.

Schematic diagram when Fig. 9 is switch rod pressing laggard airway open when the present invention uses two-in-series cylinder.

Figure 10 is schematic diagram when gas off-take is opened after switch rod release when the present invention uses two-in-series cylinder.

Embodiment

(convenient to illustrate, before the left side of accompanying drawing is, right side be rear) as shown in Figure 1, it is of the invention mainly by upper pliers plate A, under Clamp piece B, cylinder C, handle D, switch E are formed, and wherein upper pliers plate (A) and lower clamp piece (B) passes through the special-shaped projection on its opposite face It is mutually chimeric with special impression, upper pliers plate (A) can the front and rear translation gliding in lower clamp piece (B), the phase of the front end of upper and lower clamp piece Opposite forms jaw, and vertebral plate bone can sting cutting.

As shown in Figure 1 and Figure 2, cylinder push-rod 1 is cuboid, is provided with "T"-shaped groove in its leading portion, is available for upper pliers plate A's After "T"-shaped endpiece (as shown in Figure 5) insertion upper pliers plate A and cylinder push-rod 1 quick clamping, gas are realized by being rotated by 90 ° The tail end of cylinder push rod 1 is connected to cylinder piston 5；Cylinder front wall 2 suitably thickeies, and its centre has square opening to be available for cylinder push-rod 1 By the way that two screw holes are arranged at bottom, are available for lower clamp piece B "T"-shaped tail end (as shown in Figure 6) to be tightened by bolt by lower clamp piece B is firm to be connected in cylinder front wall 2；Cylinder wall 8 is provided with cylinder leakage tester hole 3, and portion can be spilt when cylinder piston 5 moves forward Divide gas；Cylinder inner wall is provided with pistons stops 6, when cylinder piston 5 is rebounded by cylinder spring 4 and can be defined when being moved rearwards And stop；Cylinder lower wall back segment is provided with cylinder air inlet 10, cylinder gas outlet 9, and the former is available for gases at high pressure to enter cylinder gas Room 7, the latter can supplied gas discharges；Switch casing 12 is cuboid, positioned at the inside of handle 15 and is attached thereto fixation, switch The upper wall of casing 12, which is provided with, switchs enterprising gas port 11 and the upper gas outlet 21 of switch, the latter two respectively with cylinder air inlet 10 and cylinder Gas outlet 9 connects, and the lower wall of switch casing 12 is provided with the lower air inlet 13 of switch and the lower gas outlet 17 of switch, and the latter two are respectively with entering Tracheae 14 is connected with escape pipe 16；Switch rod 19 is cuboid, and its interior is provided with switchs airway 18, when switch rod 19 Air intake duct or gas off-take can be opened or closed when being slid before and after switching the inside of casing 12, has switch spring 20 in switch front portion Be placed on the leading portion of switch rod 19, can will be depressed after switch rod 19 spring back to original position.

As shown in Fig. 3, Fig. 2, Fig. 1, Fig. 7, when operator is pressed switch rod with finger backward, outlet passageway closes Close, inlet channel is opened (as the dotted line arrows), and gases at high pressure enter in cylinder air chamber 7, and by cylinder piston 5, pushing tow moves forward It is dynamic, so as to which pushing tow, the jaw between upper pliers plate and lower clamp piece are engaged the upper pliers plate A of clamping forward by cylinder push-rod 1 and therewith, Completion is cut to stinging for vertebral plate sclerotin.

As shown in Fig. 4, Fig. 2, Fig. 1, Fig. 8, after operator unclamps the finger of pressing, switch spring 20 is by switch rod 19 Original position is sprung back to, outlet passageway is opened (as the dotted line arrows), and inlet channel is closed, and the gas in cylinder air chamber 7 leads to Outlet passageway discharge is crossed, cylinder piston 5 is sprung back to original position by cylinder spring 4, so as to drive cylinder push-rod 1 and block therewith The upper pliers plate A connect is retracted into original position backward, and the jaw between upper pliers plate and lower clamp piece opens, and deep matter is once stung in completion Operation.

It is first that upper pliers plate A tail end (as shown in Figure 5) is "T"-shaped in cylinder push-rod leading portion when installing clamp piece Groove (as shown in Figure 1) is pushed into, and is rotated by 90 ° after shifting the end onto, you can by upper pliers plate A and the quick clamping of cylinder push-rod, then will Special-shaped projection below the broad tail portion alignment upper pliers plate A of special impression (as shown in Figure 6) above lower clamp piece B, can Upper and lower clamp piece is bonded to each other, continues caudad to promote by lower clamp piece B afterwards, can be mutually chimeric by upper and lower clamp piece, clamp instantly When cylinder front wall is arrived on piece B "T"-shaped tail end (as shown in Figure 6) top, you can lower clamp piece B is fixedly attached into gas with two pieces of bolts On cylinder antetheca, the installation of clamp piece is completed.

Because the clamp piece of the invention is dismountable, as long as the tail end of clamp piece is the same, it is possible to by different length, no Same width of jaw, the clamp piece of different jaw gradients are quickly installed on cylinder push-rod and cylinder front wall, so as to meet operation when To the needs of Multiple Type laminectomy rongeur.

In addition, when manufacturing the instrument, in order to which its cylinder portion is made exquisite (as diameter is smaller) and with enough Pushing tow strength, two or more serial cylinders (as shown in Figure 9, Figure 10) can be made, even if relatively low using pressure Gas can also produce enough pushing tow strength, meet the force requirements that deep matter is stung during operation.

It can be seen that from described above：The pneumatic type laminectomy rongeur can help doctor easily and quickly to sting except vertebral plate bone Matter, and can meet during surgical to the operation work of the needs for not planting model laminectomy rongeur, significantly mitigation spinal surgeons Make intensity, while also increase the stability and accuracy of operation technique, thus can significantly improve spinal operation speed and Quality.

Claims

1. a kind of pneumatic type laminectomy rongeur, it is characterized in that：With the jacking force of gases at high pressure pusher cylinder piston generation forward, push away Dynamic upper pliers plate slides forward along lower clamp piece and is engaged jaw, completes to cut stinging for vertebral plate sclerotin.

2. pneumatic type laminectomy rongeur according to claim 1, it is characterized in that：Upper pliers plate tail end is connected in cylinder push-rod On, lower clamp piece tail end is connected in cylinder front wall.

3. pneumatic type laminectomy rongeur according to claim 1, it is characterized in that：Switch and switched for slide bar type, set in slide bar There is airway.

4. pneumatic type laminectomy rongeur according to claim 1, it is characterized in that：Used cylinder can also be two or The cylinder of two or more series connection.