CN215778420U - 360-degree vertebral plate rongeur - Google Patents
360-degree vertebral plate rongeur Download PDFInfo
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- CN215778420U CN215778420U CN202122257661.0U CN202122257661U CN215778420U CN 215778420 U CN215778420 U CN 215778420U CN 202122257661 U CN202122257661 U CN 202122257661U CN 215778420 U CN215778420 U CN 215778420U
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Abstract
The utility model relates to the technical field of medical instruments, in particular to 360-degree vertebral plate rongeur. The 360-degree vertebral plate rongeur comprises a fixed tong handle, a movable tong handle, an angle adjusting mechanism, a fixed tong head, a push rod and a movable tong head, wherein the fixed tong handle comprises a first tong handle, a first pipe body and a second pipe body; the top end of the fixed binding clip is inserted into the second pipe body, a plurality of clamping grooves are formed in the top end of the outer wall of the fixed binding clip at intervals along the circumferential direction, a circle of groove is formed in the outer wall of the fixed binding clip, the push rod penetrates through the through hole of the fixed binding clip, and the angle adjusting mechanism comprises a knob, a knob pin and a knob spring. The utility model can adjust 360 degrees, the switching between the occlusion angle adjusting state and the occlusion angle fixing state is convenient and easy to operate, the structural design is simple, and the structural stability is good in the using process.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to 360-degree vertebral plate rongeur.
Background
A vertebral plate rongeur is a surgical instrument used for biting dead bones or trimming bone stumps in spinal surgeries. The occlusion angles of a fixed forceps head and a movable forceps head of the existing vertebral plate rongeur are fixed, a doctor wants to change the occlusion direction in the operation process and can only realize the position rotation of the whole vertebral plate rongeur by rotating a hand arm, so that the aim of changing the occlusion direction is fulfilled, the doctor needs to frequently change the position of the arm in the operation process, inconvenient operation is caused, and force application is difficult.
In order to solve this technical problem, the skilled person has developed a vertebral plate rongeur with adjustable occlusion angle, but such a vertebral plate rongeur still has many disadvantages in practical use, such as: (1) the occlusion angle can be adjusted only in one direction, and the rotation angle is limited; (2) the switching between the occlusion angle adjusting state and the occlusion angle fixing state is inconvenient; (3) the structural design is complicated, and the structural stability is not good in the adjusting process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide 360-degree vertebral plate rongeur, which overcomes the defects of the prior art, can be adjusted by 360 degrees, is convenient and easy to operate for switching between an occlusion angle adjusting state and an occlusion angle fixing state, and has simple structural design and good structural stability in the using process.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a 360 vertebral plate rongeur, includes fixed pincers handle, activity pincers handle, angle adjustment mechanism, fixed binding clip, push rod and activity binding clip, wherein:
the fixed clamp handle comprises a first clamp handle, a first pipe body and a second pipe body, the first pipe body is fixed at the upper end of the first clamp handle, a strip-shaped opening is formed in the lower end face of the starting end of the first pipe body, the tail end of the first pipe body is connected with the second pipe body, the first pipe body and the second pipe body are coaxially arranged, the movable clamp handle comprises a second clamp handle and a push block arranged at the upper end of the second clamp handle, the movable clamp handle is crossed and hinged with the first clamp handle, the push block extends into the first pipe body along the strip-shaped opening, when the first clamp handle and the movable clamp handle are closed along the lower part of the hinged end, the push block pushes the inside of the first pipe body, and a pin shaft is arranged on the inner wall of the second pipe body;
the starting end of the fixed tong head is inserted into the second pipe body, a plurality of clamping grooves are formed in the starting end of the outer wall of the fixed tong head at intervals along the circumferential direction, a circle of groove is formed in the outer wall of the fixed tong head, a pin shaft on the inner wall of the second pipe body extends into the groove, the fixed tong head can rotate in the second pipe body, the fixed tong head cannot move back and forth under the limitation of the pin shaft and the groove in the rotating process, and a through hole is formed in the fixed tong head along the length direction of the fixed tong head;
the push rod penetrates through the through hole of the fixed tong head, one end of the push rod is connected with the movable tong head matched with the fixed tong head, the other end of the push rod is provided with a blocking piece, a spring is arranged between the blocking piece and the starting end of the fixed tong head, the blocking piece is abutted against the push block, when the spring naturally extends out, the movable tong head and the fixed tong head are not closed, when the first tong handle and the movable tong handle are closed along the position below the hinged end, the push block pushes the push rod, and the push rod drives the movable tong head and the fixed tong head to be closed;
the angle adjusting mechanism comprises a knob, a knob pin and a knob spring, the knob is sleeved on the outer walls of the first tube body and the second tube body, the knob pin is fixed on the inner wall of the knob, the knob spring in a compressed state is arranged between the knob pin and the first tube body, a first positioning long strip hole and a second positioning long strip hole are formed in the outer wall of the second tube body, the first positioning long strip hole and the second positioning long strip hole are communicated through a connecting hole, one end of the first positioning long strip hole corresponds to the clamping groove, the other end of the first positioning long strip hole is far away from the clamping groove, and two ends of the second positioning long strip hole are far away from the clamping groove; during the use, in sliding the knob round pin of knob into the rectangular hole of first location length along the connecting hole, under the effect of spring, the knob round pin is located rectangular hole of first location length and draw-in groove steadily, the circumference action of fixed binding clip is locked this moment, can not carry out circumference rotation, the direction pulling knob to first body, then slide the knob round pin into the rectangular hole of second location through the connecting hole, the knob round pin does not contact with fixed binding clip this moment, fixed binding clip can 360 rotations, rotatory process drives push rod and activity binding clip rotatory simultaneously, under the restriction of round pin axle and recess, rotation process stability is good, convenient operation.
Further, the external diameter of first body is greater than the external diameter of second body, the internal diameter of knob cooperatees with the internal diameter of first body, and the one end that first body was kept away from to the knob is provided with the card edge, and the internal diameter on card edge cooperatees with the internal diameter of second body, increases the stability of knob pulling in-process, prescribes a limit to the stroke of knob pulling simultaneously.
Furthermore, a holding section is arranged on the outer wall of the fixed forceps head and is close to the second pipe body, and the holding end can increase the friction force between fingers of a doctor and the fixed forceps head.
Furthermore, a sliding groove is formed in the fixed tong head, and a sliding block matched with the sliding groove is arranged on the movable tong head, so that the fixed tong head and the movable tong head can be accurately occluded.
The utility model has the beneficial effects that: compared with the prior art, the 360-degree vertebral plate rongeur has the following advantages: (1) sliding a knob pin of a knob into a first positioning long-strip hole along a connecting hole, stably positioning the knob pin in the first positioning long-strip hole and a clamping groove under the action of a spring, locking the circumferential motion of a fixed tong head at the moment, not performing circumferential rotation, pulling the knob towards the direction of a first pipe body, sliding the knob pin into a second positioning long-strip hole through the connecting hole, not contacting the knob pin with the fixed tong head at the moment, rotating the fixed tong head for 360 degrees, and driving a push rod and a movable tong head to rotate during the rotation process; (2) the position of the knob pin is adjusted through the knob, the first positioning long strip hole, the second positioning long strip hole and the connecting hole, and the switching between the occlusion angle adjusting state and the occlusion angle fixing state is convenient; (3) under the restriction of round pin axle and recess, rotation process stability is good, convenient operation, and the structural design of first body and second body also can increase the stability degree of knob pulling in-process, prescribes a limit to the stroke of knob pulling simultaneously.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 3 is a schematic view of the first and second handles of the present invention;
FIG. 4 is a schematic view of the positional relationship of the first and second handles, the knob pin and the knob spring of the present invention;
FIG. 5 is a schematic structural view of the fixed binding clip, the movable binding clip and the push rod of the present invention;
FIG. 6 is a schematic structural view of the present invention after the fixed and movable binding clip are separated;
the automatic clamp comprises a fixed clamp handle 1, a first clamp handle 101, a first pipe 102, a second pipe 103, a long opening 104, a pin shaft 105, a first positioning long hole 106, a second positioning long hole 107, a connecting hole 108, a movable clamp handle 2, a second clamp handle 201, a push block 202, a 3-angle adjusting mechanism, a knob 301, a knob pin 302, a knob spring 303, a fixed clamp head 4, a clamp groove 401, a groove 402, a holding section 403, a slide groove 404, a push rod 5, a catch 501, a catch 502 spring, a movable clamp head 6 and a slide block 601.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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.
In the embodiment shown in fig. 1-6, a 360-degree vertebral plate rongeur comprises a fixed forceps handle 1, a movable forceps handle 2, an angle adjusting mechanism 3, a fixed forceps head 4, a push rod 5 and a movable forceps head 6, wherein:
the fixed forceps handle 1 comprises a first forceps handle 101, a first pipe body 102 and a second pipe body 103, the first pipe body 102 is fixed at the upper end of the first forceps handle 101, a long-strip opening 104 is formed in the lower end face of the beginning end of the first pipe body 102, the tail end of the first pipe body 102 is connected with the second pipe body 103, the first pipe body 102 and the second pipe body 103 are coaxially arranged, the movable forceps handle 2 comprises a second forceps handle 201 and a push block 202 arranged at the upper end of the second forceps handle 201, the movable forceps handle 2 is crossed and hinged with the first forceps handle 101, the push block 202 extends into the first pipe body 102 along the long-strip opening 104, when the first forceps handle 101 and the movable forceps handle 2 are closed below the hinged end, the push block 202 pushes the first pipe body 102, and a pin shaft 105 is arranged on the inner wall of the second pipe body 103;
the start end of the fixed tong head 4 is inserted into the second pipe body 103, a plurality of clamping grooves 401 are formed in the start end of the outer wall of the fixed tong head 4 at intervals along the circumferential direction, a circle of groove 402 is formed in the outer wall of the fixed tong head 4, a pin shaft 105 on the inner wall of the second pipe body 103 extends into the groove 402, the fixed tong head 4 can rotate in the second pipe body 103, the fixed tong head 4 cannot move back and forth under the limitation of the pin shaft 105 and the groove 402 in the rotating process, and the fixed tong head 4 is provided with a through hole along the length direction;
the push rod 5 penetrates through a through hole of the fixed tong head 4, one end of the push rod 5 is connected with the movable tong head 6 matched with the fixed tong head 4, the other end of the push rod 5 is provided with a blocking piece 501, a spring 502 is arranged between the blocking piece 501 and the starting end of the fixed tong head 4, the blocking piece 501 abuts against the push block 202, when the spring 502 naturally extends out, the movable tong head 6 and the fixed tong head 4 are not closed, when the first tong handle 101 and the movable tong handle 2 are closed along the lower part of the hinged end, the push block 202 pushes the push rod 5, and the push rod 5 drives the movable tong head 6 and the fixed tong head 4 to be closed;
the angle adjusting mechanism 3 comprises a knob 301, a knob pin 302 and a knob spring 303, the knob 301 is sleeved on the outer walls of the first tube body 102 and the second tube body 103, the knob pin 302 is fixed on the inner wall of the knob 301, the knob spring 303 in a compressed state is arranged between the knob pin 302 and the first tube body 102, a first positioning long hole 106 and a second positioning long hole 107 are formed in the outer wall of the second tube body 103, the first positioning long hole 106 and the second positioning long hole 107 are communicated through a connecting hole 108, one end of the first positioning long hole 106 corresponds to the position of the clamping groove 401, the other end of the first positioning long hole is far away from the clamping groove 401, and two ends of the second positioning long hole 107 are far away from the clamping groove 401; when the clamp is used, the knob pin 302 of the knob 301 slides into the first positioning long-strip hole 106 along the connecting hole 108, under the action of the spring 502, the knob pin 302 is stably positioned in the first positioning long-strip hole 106 and the clamping groove 401, the circumferential motion of the fixed tong head 4 is locked at the moment and cannot rotate circumferentially, the knob 301 is pulled towards the first pipe body 102, then the knob pin 302 slides into the second positioning long-strip hole 107 through the connecting hole 108, at the moment, the knob pin 302 is not in contact with the fixed tong head 4, the fixed tong head 4 can rotate 360 degrees, the push rod 5 and the movable tong head 6 are driven to rotate simultaneously during the rotation process, and under the limitation of the pin shaft 105 and the groove 402, the stability of the rotation process is good, and the operation is convenient.
In this embodiment, the outer diameter of the first tube 102 is greater than the outer diameter of the second tube 103, the inner diameter of the knob 301 is matched with the inner diameter of the first tube 102, a clamping edge is disposed at one end of the knob 301, which is far away from the first tube 102, the inner diameter of the clamping edge is matched with the inner diameter of the second tube 103, the stability of the knob 301 in the pulling process is increased, and the pulling stroke of the knob 301 is limited.
In this embodiment, the outer wall of the fixed forceps head 4 is provided with a holding section 403, the holding section 403 is close to the second tube 103, and the holding end can increase the friction force between the fingers of the doctor and the fixed forceps head 4.
In this embodiment, the fixed binding clip 4 is provided with a sliding groove 404, and the movable binding clip 6 is provided with a sliding block 601 matched with the sliding groove 404, so that the fixed binding clip 4 and the movable binding clip 6 are accurately engaged.
The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (4)
1. A360-degree vertebral plate rongeur is characterized in that: including fixed pincers handle, activity pincers handle, angle adjustment mechanism, fixed binding clip, push rod and activity binding clip, wherein:
the fixed clamp handle comprises a first clamp handle, a first pipe body and a second pipe body, the first pipe body is fixed at the upper end of the first clamp handle, a long-strip opening is formed in the lower end face of the starting end of the first pipe body, the tail end of the first pipe body is connected with the second pipe body, the movable clamp handle comprises a second clamp handle and a push block arranged at the upper end of the second clamp handle, the movable clamp handle is crossed and hinged with the first clamp handle, the push block extends into the first pipe body along the long-strip opening, and a pin shaft is arranged on the inner wall of the second pipe body;
the starting end of the fixed tong head is inserted into the second pipe body, a plurality of clamping grooves are formed in the starting end of the outer wall of the fixed tong head at intervals along the circumferential direction, a circle of groove is formed in the outer wall of the fixed tong head, a pin shaft on the inner wall of the second pipe body extends into the groove, and a through hole is formed in the fixed tong head along the length direction of the fixed tong head;
the push rod penetrates through the through hole of the fixed tong head, one end of the push rod is connected with the movable tong head matched with the fixed tong head, the other end of the push rod is provided with a blocking piece, a spring is arranged between the blocking piece and the starting end of the fixed tong head, and the blocking piece is abutted against the push block;
the angle adjusting mechanism comprises a knob, a knob pin and a knob spring, the knob is sleeved on the outer walls of the first pipe body and the second pipe body, the knob pin is fixed on the inner wall of the knob, the knob spring in a compression state is arranged between the knob pin and the first pipe body, a first positioning long strip hole and a second positioning long strip hole are formed in the outer wall of the second pipe body and communicated through a connecting hole, one end of the first positioning long strip hole corresponds to the position of the clamping groove, the other end of the first positioning long strip hole is far away from the clamping groove, and the clamping groove is far away from the two ends of the second positioning long strip hole.
2. A 360 ° vertebral plate rongeur as claimed in claim 1 wherein: the outer diameter of the first pipe body is larger than that of the second pipe body, the inner diameter of the knob is matched with the inner diameter of the first pipe body, a clamping edge is arranged at one end, away from the first pipe body, of the knob, and the inner diameter of the clamping edge is matched with the inner diameter of the second pipe body.
3. A 360 ° vertebral plate rongeur as claimed in claim 1 wherein: and a holding section is arranged on the outer wall of the fixed tong head and is close to the second pipe body.
4. A 360 ° vertebral plate rongeur as claimed in claim 1 wherein: the fixed tong head is provided with a sliding groove, and the movable tong head is provided with a sliding block matched with the sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122257661.0U CN215778420U (en) | 2021-09-17 | 2021-09-17 | 360-degree vertebral plate rongeur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122257661.0U CN215778420U (en) | 2021-09-17 | 2021-09-17 | 360-degree vertebral plate rongeur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215778420U true CN215778420U (en) | 2022-02-11 |
Family
ID=80163718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122257661.0U Active CN215778420U (en) | 2021-09-17 | 2021-09-17 | 360-degree vertebral plate rongeur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215778420U (en) |
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2021
- 2021-09-17 CN CN202122257661.0U patent/CN215778420U/en active Active
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