CN214857369U - Three-jaw bone holding forceps for children bone surgery - Google Patents
Three-jaw bone holding forceps for children bone surgery Download PDFInfo
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- CN214857369U CN214857369U CN202121710465.8U CN202121710465U CN214857369U CN 214857369 U CN214857369 U CN 214857369U CN 202121710465 U CN202121710465 U CN 202121710465U CN 214857369 U CN214857369 U CN 214857369U
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Abstract
The utility model provides a three-jaw bone holding forceps for children's bone surgery, which comprises a first forceps handle and a second forceps handle, wherein the first forceps handle and the second forceps handle are hinged through a hinged shaft, the clamping parts of the first forceps handle and the second forceps handle are respectively fixedly connected with a first arc-shaped forceps jaw, the two first arc-shaped forceps jaws are arranged oppositely, the hinged shaft is arranged close to the first arc-shaped forceps jaw, one side of the two first arc-shaped forceps jaws is rotationally connected with a second arc-shaped forceps jaw through the hinged shaft, a first positioning component and a positioning tooth component are arranged between the first forceps handle and the second forceps handle, the first positioning component is arranged close to the hinged shaft, and the positioning tooth component is arranged close to the handheld part of the first forceps handle; a first opening adjusting mechanism is arranged between the second arc-shaped clamp claw and one side of the first clamp handle far away from the second clamp handle. The utility model discloses can increase fracture reduction in-process and hold bone stability, prevent that two claw holding forceps from holding bone in-process fracture piece rotatory around the centre gripping axle center, increase the convenient degree and the reliability that reset.
Description
Technical Field
The utility model belongs to the field of medical fixing instruments, in particular to a three-jaw bone holding forceps for children's bone surgery.
Background
Clinically, the tubular cortical bone (long tubular bone) can be clamped by bone holding forceps in the fracture reduction process because the shape of the tubular cortical bone is more regular; clamping of non-tubular bone, irregular bone and cancellous bone such as metaphysis and the like is often carried out by using a tissue clamp to maintain reduction, and a corresponding bone clamp can not be used. For example, in the reduction of the children humeral external condyle fracture, the humeral distal fracture block needs to be clamped and then reduced to the original fracture part, meanwhile, the reduction position needs to be maintained after the reduction is successful, and a kirschner wire or other internal fixtures are drilled into a proper position to treat the fracture under the condition of maintaining the reduction position. The pointed bone holding forceps (tissue forceps) of the two claws can rotate by taking the two clamping points as the axis after clamping the bone pieces, so that the clamping and resetting reliability is changed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a three-jaw bone-holding forceps that children's bone surgery used to solve above-mentioned problem, reach and increase the fracture and restore to the throne in-process and hold bone stability, prevent that two-jaw bone-holding forceps from holding bone in-process fracture piece around centre gripping axle center rotation, increase the purpose of the convenient degree and the reliability that restore to the throne.
In order to achieve the above object, the utility model provides a following scheme: a three-jaw bone holding forceps used for children bone surgery comprises a first forceps handle and a second forceps handle, wherein the first forceps handle and the second forceps handle are hinged through a hinge shaft, clamping parts of the first forceps handle and the second forceps handle are fixedly connected with first arc-shaped forceps jaws respectively, the two first arc-shaped forceps jaws are arranged oppositely, the hinge shaft is arranged close to the first arc-shaped forceps jaws, one sides of the two first arc-shaped forceps jaws are rotatably connected with the second arc-shaped forceps jaws through the hinge shaft, a first positioning assembly and a positioning tooth assembly are arranged between the first forceps handle and the second forceps handle, the first positioning tooth assembly is arranged close to the hinge shaft, and the positioning tooth assembly is arranged close to the handheld part of the first forceps handle; and a first opening degree adjusting mechanism is arranged between the second arc-shaped clamp claw and one side of the first clamp handle, which is far away from the second clamp handle, and the positioning tooth assembly is used for keeping the distance between the first clamp handle and the second clamp handle.
Preferably, the second arc-shaped clamp claw comprises a movable claw and a positioning rod which are connected with each other, the first opening degree adjusting mechanism is arranged between one end of the positioning rod and one side, far away from the second clamp handle, of the first clamp handle, and a second opening degree adjusting mechanism is arranged at the joint of the movable claw and the other end of the positioning rod.
Preferably, the first opening degree adjusting mechanism comprises a third adjusting screw, the third adjusting screw is screwed on one side of the positioning rod, which is far away from the first clamp handle, one end of a screw rod of the third adjusting screw, which is close to the first clamp handle, is abutted against the side face of the first clamp handle, and one end of the positioning rod is rotatably connected with one end of the hinge shaft.
Preferably, the second opening degree adjusting mechanism comprises a second adjusting screw, one end of the movable claw, which is far away from the tip end, is hinged with the other end of the positioning rod through a screw rod of the second adjusting screw, and the central line of the screw rod of the second adjusting screw is perpendicular to the central line of the hinged shaft; the screw rod of the second adjusting screw is in threaded connection with the movable claw, the other end of the positioning rod is located between the head of the second adjusting screw and the movable claw, and the positioning rod is rotatably connected with the screw rod of the second adjusting screw.
Preferably, the first positioning assembly comprises an arc-shaped fixed rod fixedly connected to the outer side wall of the first clamp handle, an arc-shaped movable rod is slidably sleeved on the outer side of the arc-shaped fixed rod, a limiting block is fixedly connected to one end, away from the first clamp handle, of the arc-shaped movable rod, a limiting protrusion is fixedly connected to the outer side wall of the second clamp handle, a groove matched with the limiting protrusion is formed in one end, away from the arc-shaped movable rod, of the limiting block, and an adjusting assembly is arranged between the arc-shaped movable rod and the arc-shaped fixed rod.
Preferably, the adjusting part is including seting up arc constant head tank on the arc dead lever lateral surface, arc movable rod lateral wall vertical direction spiro union has first adjusting screw, first adjusting screw's screw rod is kept away from a terminal surface of first adjusting screw head with arc constant head tank bottom butt, first adjusting screw's screw rod side with arc constant head tank medial surface sliding connection.
Preferably, the minimum fixed distance between the clamping portions of the two first arcuate jaws, and between any one of the first arcuate jaws and the clamping portion of the second arcuate jaw, is set to 0.5-1.2 cm.
Preferably, the holding ends of the first forceps handle and the second forceps handle are respectively and fixedly connected with the tail of the forceps handle at the end far away from the hinge shaft.
Preferably, the clamping parts of the two first arc-shaped claws and the clamping part of the second arc-shaped claw are respectively and spherically hinged with universal flat heads, and the three universal flat heads are correspondingly arranged.
Preferably, the positioning tooth assembly comprises two racks which are meshed with each other, and the two racks are respectively and fixedly connected to the handheld portions of the first forceps handle and the second forceps handle and located between the two handheld portions.
The utility model discloses has following technological effect: the two first arc-shaped claws are used for clamping a bone block, the second arc-shaped claw is matched with the two first arc-shaped claws, the original two-point clamping is changed into three-point clamping, and the stability and the accuracy of clamping the bone block are effectively improved; according to different bone block sizes, the first positioning component is used for adjusting the minimum distance between the clamping parts of the two first arc-shaped claws and the second arc-shaped claw, and the positioning tooth component can maintain the clamping state between the clamping parts of the two first arc-shaped claws and the second arc-shaped claw while keeping the distance between the first clamp handle and the second clamp handle, so that the bone block is prevented from rotating around the clamping point between the two first arc-shaped claws, and the operation stability is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a bone holding forceps;
FIG. 2 is a left side view of the bone holding forceps;
fig. 3 is a sectional view of a second opening degree adjustment mechanism;
FIG. 4 is a cross-sectional view of a partial enlarged view of B in FIG. 2;
FIG. 5 is a cross-sectional view A-A of FIG. 1;
FIG. 6 is a schematic view of a universal tack position;
wherein, 1, a first clamp handle; 2. a second forceps handle; 3. hinging a shaft; 4. a first arcuate jaw; 5. a second arcuate jaw; 501. a movable jaw; 502. positioning a rod; 6. a tong handle tail; 7. a positioning tooth assembly; 8. an arc-shaped movable rod; 9. an arc-shaped positioning groove; 10. an arc-shaped fixing rod; 11. a first adjusting screw; 12. a limiting block; 13. a limiting bulge; 14. a second adjusting screw; 15. a third adjusting screw; 16. a universal flat head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1-6, the utility model provides a three-jaw bone holding forceps for children's bone surgery, including first forceps handle 1 and second forceps handle 2, first forceps handle 1 and second forceps handle 2 are articulated through articulated shaft 3, the clamping part of first forceps handle 1 and second forceps handle 2 is fixedly connected with first arc-shaped forceps jaw 4 respectively, two first arc-shaped forceps jaws 4 are arranged relatively, articulated shaft 3 is arranged near first arc-shaped forceps jaw 4, one side of two first arc-shaped forceps jaws 4 is connected with second arc-shaped forceps jaw 5 through articulated shaft 3 rotation, first positioning component and positioning tooth component 7 are arranged between first forceps handle 1 and second forceps handle 2, and first positioning tooth component is arranged near articulated shaft 3, positioning tooth component 7 is arranged near the hand-held portion of first forceps handle 1; a first opening degree adjusting mechanism is arranged between the second arc-shaped clamp claw 5 and one side of the first clamp handle 1, which is far away from the second clamp handle 2, and a positioning tooth assembly 7 is used for keeping the distance between the first clamp handle 1 and the second clamp handle 2. The two first arc-shaped claws 4 are used for clamping bone blocks, the second arc-shaped claw 5 is used for matching with the two first arc-shaped claws 4, the original two-point clamping is changed into three-point clamping, and the stability and the accuracy of clamping the bone blocks are effectively improved; the first positioning component is used for adjusting the minimum distance between the clamping parts of the two first arc-shaped clamping claws 4 and the two second arc-shaped clamping claws 5 according to different bone block sizes, so that the bone blocks are prevented from being damaged due to transition clamping in the process of clamping the bone blocks; the positioning tooth assembly 7 can maintain the clamping state between the clamping parts of the two first arc-shaped claws 4 and the second arc-shaped claws 5 while keeping the distance between the first forceps handle 1 and the second forceps handle 2, so that the bone block is prevented from rotating around the clamping point between the two first arc-shaped claws 4, and the operation stability is facilitated.
In a further optimized scheme, the second arc-shaped clamp claw 5 comprises a movable claw 501 and a positioning rod 502 which are connected with each other, the first opening degree adjusting mechanism is arranged between one end of the positioning rod 502 and one side of the first clamp handle 1, which is far away from the second clamp handle 2, and the joint of the other end of the movable claw 501 and the other end of the positioning rod 502 is provided with the second opening degree adjusting mechanism.
According to a further optimized scheme, the first opening adjusting mechanism comprises a third adjusting screw 15, the third adjusting screw 15 is in threaded connection with one side, away from the first clamp handle 1, of the positioning rod 502, one end, close to the first clamp handle 1, of a screw of the third adjusting screw 15 is in butt connection with the side face of the first clamp handle 1, and one end of the positioning rod 502 is rotatably connected with one end of the hinge shaft 3. By adjusting the third adjusting screw 15, the angle between the second arc-shaped clamp claw 5 and the first clamp handle 1 can be adjusted, namely, the distance between the second arc-shaped clamp claw 5 and the clamping parts of the two first arc-shaped clamp claws 4 is adjusted, then the third adjusting screw 15 is rotated, so that the third adjusting screw 15 is abutted against the first clamp handle 1, and the rotating angle of the second arc-shaped clamp claw 5 relative to the first clamp handle 1 can be maintained by setting.
According to a further optimized scheme, the second opening degree adjusting mechanism comprises a second adjusting screw 14, one end, far away from the tip end, of the movable claw 501 is hinged to the other end of the positioning rod 502 through a screw rod of the second adjusting screw 14, and a screw rod center line of the second adjusting screw 14 is perpendicular to a center line of the hinge shaft 3; the screw of the second adjusting screw 14 is screwed with the movable claw 501, the other end of the positioning rod 502 is positioned between the head of the second adjusting screw 14 and the movable claw 501, and the positioning rod 502 is rotatably connected with the screw of the second adjusting screw 14. The angle between the movable jaw 501 and the positioning rod 502 can be adjusted by rotating the second adjustment screw 14, and the angle between the movable jaw 501 and the positioning rod 502 can be maintained by tightening the second adjustment screw 14.
Further optimize the scheme, first positioning subassembly includes arc dead lever 10 of fixed connection on 1 lateral wall of first pincers handle, arc movable rod 8 has been cup jointed in the slip in the arc dead lever 10 outside, the one end fixedly connected with stopper 12 of first pincers handle 1 is kept away from to arc movable rod 8, spacing arch 13 of fixedly connected with on 2 lateral walls of second pincers handle, stopper 12 keeps away from the one end of arc movable rod 8 and sets up the recess with spacing arch 13 looks adaptation, be provided with adjusting part between arc movable rod 8 and the arc dead lever 10. Slide between arc movable rod 8 and the arc dead lever 10, can adjust the distance between first pincers handle 1 and the second pincers handle 2, can be in order to adjust the minimum centre gripping interval between the clamping part of two first arc pincers claws 4, adjusting part can keep the sliding distance between arc movable rod 8 and the arc dead lever 10, when the centre gripping bone piece, avoids exerting oneself too greatly to cause the damage to the bone piece.
Further optimize the scheme, adjusting part is including seting up arc constant head tank 9 on arc dead lever 10 lateral surface, and 8 lateral wall vertical direction spiro union of arc movable rod have first adjusting screw 11, and 11 heads of first adjusting screw 11's screw rod is kept away from a terminal surface and the 9 bottom butts of arc constant head tank, first adjusting screw 11's screw rod side and the 9 medial surfaces sliding connection of arc constant head tank. After the arc-shaped movable rod 8 and the arc-shaped fixed rod 10 slide to a certain distance, the first adjusting screw 11 is rotated to enable the screw rod of the first adjusting screw 11 to be abutted against the inner side of the arc-shaped positioning groove 9, so that the minimum distance between the first forceps handle 1 and the second forceps handle 2 can be determined in advance before bone blocks are clamped.
In a further optimized scheme, the minimum fixed distance between the clamping parts of the two first arc-shaped claws 4 and between the clamping parts of any first arc-shaped claw 4 and the second arc-shaped claw 5 is set to be 0.5-1.2 cm. In order to ensure that the bone block is not damaged in the clamping process, a safety distance is set.
Further optimizing scheme, the one end that articulated shaft 3 was kept away from to the handheld end of first pincers handle 1 and second pincers handle 2 is fixedly connected with pincers handle tail 6 respectively. The forceps handle tail 6 is arranged at the tail of the handheld part, so that fingers can be placed at a position convenient to hold by hands, and force generation and operation of the hands are facilitated.
In a further optimized scheme, the clamping parts of the two first arc-shaped claws 4 and the clamping parts of the second arc-shaped claws 5 are respectively and spherically hinged with universal flat heads 16, and the three universal flat heads 16 are correspondingly arranged. The universal flat heads 16 are used for clamping bone blocks, for fragile bone blocks, the integrity of the bone blocks is prevented from being damaged by clamping the three universal flat heads 16, and the three universal flat heads 16 can be suitable for clamping bone blocks in different shapes by adopting a spherical hinge mode.
In a further optimized scheme, the positioning tooth assembly 7 comprises two racks which are meshed with each other, and the two racks are respectively and fixedly connected to the handheld parts of the first forceps handle 1 and the second forceps handle 2 and are positioned between the two handheld parts.
The working process of the embodiment is as follows: when the bone-holding forceps are applied by the right hand (or the left hand), the positioning tooth assembly 7 in the occlusion state is firstly opened, the locking state is released, then the first positioning assembly is adjusted, the arc-shaped movable rod 8 and the arc-shaped fixed rod 10 relatively slide, the position between the arc-shaped movable rod 8 and the arc-shaped fixed rod 10 is adjusted according to the size of a bone block to be clamped, then the relative position between the arc-shaped movable rod 8 and the arc-shaped fixed rod 10 is fixed by utilizing the first adjusting screw 11, so that the adjustment of the minimum distance between the first forceps handle 1 and the second forceps handle 2, namely the adjustment of the minimum distance between the two first arc-shaped forceps jaws 4 is completed; and then adjusting the first opening degree adjusting mechanism, and adjusting the distance between the first arc-shaped claw 4 and the second arc-shaped claw 5 according to the minimum distance between the two first arc-shaped claws 4, so that the adjacent distances between the clamping parts of the two first arc-shaped claws 4 and the second arc-shaped claw 5 are the same, and further, the bone blocks are kept stable between the clamping parts of the two first arc-shaped claws 4 and the second arc-shaped claw 5. When the minimum distance between the clamping parts is determined, the bone pieces are clamped and then the positioning tooth assembly 7 is locked.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a three-jaw bone-holding forceps that children's bone surgery used which characterized in that: comprises a first forceps handle (1) and a second forceps handle (2), the first forceps handle (1) and the second forceps handle (2) are hinged through a hinge shaft (3), the clamping parts of the first forceps handle (1) and the second forceps handle (2) are respectively and fixedly connected with first arc-shaped forceps claws (4), the two first arc-shaped forceps claws (4) are oppositely arranged, the articulated shaft (3) is arranged close to the first arc-shaped claws (4), one side of each of the two first arc-shaped claws (4) is rotationally connected with a second arc-shaped claw (5) through the articulated shaft (3), a first positioning component and a positioning tooth component (7) are arranged between the first forceps handle (1) and the second forceps handle (2), the first positioning component is arranged close to the hinged shaft (3), and the positioning tooth component (7) is arranged close to the handheld part of the first clamp handle (1); a first opening degree adjusting mechanism is arranged between the second arc-shaped clamp claw (5) and one side, far away from the second clamp handle (2), of the first clamp handle (1), and the positioning tooth assembly (7) is used for keeping the distance between the first clamp handle (1) and the second clamp handle (2).
2. The three-jaw bone holding forceps for pediatric bone surgery according to claim 1, characterized in that: the second arc-shaped clamp claw (5) comprises a movable claw (501) and a positioning rod (502) which are connected with each other, the first opening degree adjusting mechanism is arranged between one end of the positioning rod (502) and one side, far away from the second clamp handle (2), of the first clamp handle (1), and a second opening degree adjusting mechanism is arranged at the joint of the movable claw (501) and the other end of the positioning rod (502).
3. The three-jaw bone holding forceps for pediatric bone surgery according to claim 2, characterized in that: the first opening degree adjusting mechanism comprises a third adjusting screw (15), the third adjusting screw (15) is in threaded connection with one side, away from the first clamp handle (1), of the positioning rod (502), one end, close to the first clamp handle (1), of a screw rod of the third adjusting screw (15) is abutted to the side face of the first clamp handle (1), and one end of the positioning rod (502) is rotatably connected with one end of the hinge shaft (3).
4. The three-jaw bone holding forceps for pediatric bone surgery according to claim 2, characterized in that: the second opening degree adjusting mechanism comprises a second adjusting screw (14), one end, far away from the tip end, of the movable claw (501) is hinged to the other end of the positioning rod (502) through a screw rod of the second adjusting screw (14), and the central line of the screw rod of the second adjusting screw (14) is perpendicular to the central line of the hinged shaft (3); the screw rod of the second adjusting screw (14) is in threaded connection with the movable claw (501), the other end of the positioning rod (502) is located between the head of the second adjusting screw (14) and the movable claw (501), and the positioning rod (502) is in rotary connection with the screw rod of the second adjusting screw (14).
5. The three-jaw bone holding forceps for pediatric bone surgery according to claim 1, characterized in that: the first positioning assembly comprises an arc-shaped fixed rod (10) fixedly connected to the outer side wall of the first clamp handle (1), an arc-shaped movable rod (8) is sleeved on the outer side of the arc-shaped fixed rod (10) in a sliding mode, one end of the arc-shaped movable rod (8) is far away from a limiting block (12) fixedly connected to the first clamp handle (1), a limiting protrusion (13) is fixedly connected to the outer side wall of the second clamp handle (2), a groove matched with the limiting protrusion (13) is formed in one end, far away from the arc-shaped movable rod (8), of the limiting block (12), and an adjusting assembly is arranged between the arc-shaped movable rod (8) and the arc-shaped fixed rod (10).
6. The three-jaw bone holding forceps for pediatric bone surgery according to claim 5, wherein: the adjusting part is including seting up arc constant head tank (9) on arc dead lever (10) lateral surface, arc movable rod (8) lateral wall vertical direction spiro union has first adjusting screw (11), the screw rod of first adjusting screw (11) is kept away from a terminal surface of first adjusting screw (11) head with arc constant head tank (9) bottom butt, the screw rod side of first adjusting screw (11) with arc constant head tank (9) medial surface sliding connection.
7. The three-jaw bone holding forceps for pediatric bone surgery according to claim 1, characterized in that: the minimum fixed distance between the clamping parts of the two first arc-shaped claws (4) and between any one first arc-shaped claw (4) and the clamping part of the second arc-shaped claw (5) is set to be 0.5-1.2 cm.
8. The three-jaw bone holding forceps for pediatric bone surgery according to claim 1, characterized in that: one ends of the handheld ends of the first forceps handle (1) and the second forceps handle (2) far away from the articulated shaft (3) are fixedly connected with forceps handle tails (6) respectively.
9. The three-jaw bone holding forceps for pediatric bone surgery according to claim 1, characterized in that: the clamping parts of the two first arc-shaped claws (4) and the clamping parts of the second arc-shaped claws (5) are respectively and spherically hinged with universal flat heads (16), and the three universal flat heads (16) are correspondingly arranged.
10. The three-jaw bone holding forceps for pediatric bone surgery according to claim 1, characterized in that: the positioning tooth assembly (7) comprises two racks which are meshed with each other, and the two racks are respectively and fixedly connected to the handheld portions of the first forceps handle (1) and the second forceps handle (2) and located between the two handheld portions.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121710465.8U CN214857369U (en) | 2021-07-27 | 2021-07-27 | Three-jaw bone holding forceps for children bone surgery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121710465.8U CN214857369U (en) | 2021-07-27 | 2021-07-27 | Three-jaw bone holding forceps for children bone surgery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116077132A (en) * | 2023-04-11 | 2023-05-09 | 北京爱康宜诚医疗器材有限公司 | Joint head extractor |
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2021
- 2021-07-27 CN CN202121710465.8U patent/CN214857369U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116077132A (en) * | 2023-04-11 | 2023-05-09 | 北京爱康宜诚医疗器材有限公司 | Joint head extractor |
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