CN113509308A

CN113509308A - Universal multipurpose fixing clamp

Info

Publication number: CN113509308A
Application number: CN202110444082.9A
Authority: CN
Inventors: 罗爱民; 黄馨; 彭新阳; 秦保祯
Original assignee: Beijing Zhong An Tai Hua Science & Technology Co ltd
Current assignee: Beijing Zhong An Tai Hua Science & Technology Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-10-19
Anticipated expiration: 2041-04-23
Also published as: CN113509308B

Abstract

The application relates to the field of orthopedic external fixation supports, in particular to a universal multipurpose fixing clamp which comprises a connecting piece and clamping pieces symmetrically arranged at two ends of the connecting piece, wherein the clamping pieces are used for fixing a connecting rod, and the two clamping pieces can rotate around the connecting piece; the connecting piece comprises a connecting rod, a pair of universal balls symmetrically arranged at two ends of the connecting rod and a pair of nuts sleeved on the connecting rod, the nuts are in ball hinge with the universal balls, and one end of each nut, which is far away from the connecting rod, is provided with a locking sleeve in threaded connection; the clamping piece comprises a fixing screw with one end in threaded connection with the locking sleeve and a cover body sleeved on the fixing screw, a bolt head is arranged at one end, away from the locking sleeve, of the fixing screw, the cover body can slide along the length direction of the fixing screw, the bolt head can abut against one end, away from the locking sleeve, of the cover body, and the connecting rod can be clamped between the cover body and the locking sleeve. The fixing device has the effect of improving the fixing efficiency of the human fracture part.

Description

Universal multipurpose fixing clamp

Technical Field

The application relates to the field of orthopedic external fixation supports, in particular to a universal multipurpose fixing clamp.

Background

In recent years, with the increase of high-energy open fractures, the treatment of open fractures is different from closed fractures, which are susceptible to infection and necrosis. Thus, the treatment of open fractures is required to be rapid, minimizing tissue re-injury. The method for fixing the fracture is simple, rapid and effective.

The external fixation support technology is applied to the treatment fracture very extensively, and external fixation support is including connecting rod and the universal joint of fixed fracture position department usually, and the connecting rod can prevent the position department of human fracture, takes place the bending, and two adjacent connecting rods or many connecting rods can be connected to the universal joint, and when fixed, the position department of fracture is around setting up a frame construction, fixes the position department of fracture, external fixation support's advantage: 1. the application range is wide, the quality of the modern external fixing frame is reliable, the stability is good, and the assembling form is flexible and various; 2. the modern external fixation system has very reliable stability through continuous improvement and research, and the displacement and angulation of the fracture end caused by the instability of the external fixation frame are very rare in the fixation process; 3. the fixation range is large, and for some adjacent joints or fractures in the joints, super-joint fixation can be adopted if necessary to increase the stability of fixation, which cannot be achieved by internal fixation; 4. minimally invasive operation, small surgical injury and closed reduction.

Although the external fixing bracket on the market at present consists of a connecting rod and a universal joint and the simplest plaster, a splint and bone traction are used for fixing the fracture part of a human body, the rapid and effective fracture fixation cannot be achieved, and the abnormal movement of the fracture end threatens the healing of wound skin and can increase the chance of pollution diffusion.

Disclosure of Invention

In order to improve the fixed efficiency of human fracture department, this application provides a universal multi-purpose fixation clamp.

The application provides a universal multi-purpose fixation clamp adopts following technical scheme:

a universal multipurpose fixing clamp comprises a connecting piece and clamping pieces symmetrically arranged at two ends of the connecting piece, wherein the clamping pieces are used for fixing a connecting rod, the clamping pieces are detachably fixed on the connecting piece, and the two clamping pieces can rotate around the connecting piece;

the connecting piece comprises a connecting rod, a pair of universal balls symmetrically arranged at two ends of the connecting rod and a pair of nuts sleeved on the connecting rod, the connecting rod is detachably and fixedly connected with the two universal balls, the two nuts are positioned between the two universal balls, the nuts are in ball hinge with the universal balls, one end of each nut, which is far away from the connecting rod, is provided with a locking sleeve in threaded connection, and one end, which is close to the nut, of each locking sleeve can be abutted to the surface of the universal ball;

the clamping piece includes that one end and lock sleeve threaded connection's set screw and cover establish the lid on set screw, the one end that the lock sleeve was kept away from to set screw is provided with the bolt head, the lid can slide along set screw's length direction, the bolt head can the butt keep away from the one end of lock sleeve at the lid, can press from both sides tight connecting rod between lid and the lock sleeve.

Through adopting above-mentioned technical scheme, the connecting piece and a pair of clamping piece that this application set up, when needs fix fracture position department, set up this universal fixation clamp in the position department of two adjacent connecting rods, at the in-process fixed to the connecting rod, can adjust the angle between clamping piece and the connecting piece at any time according to actual operation environment's needs, realize the fixed of many planes multi-angle, so that adapt to the requirement under the complicated fixed operation environment, and at the in-process of operation, can fix the connecting rod in advance earlier, after fixing in advance is accomplished, can finely tune detailed position, all set up the completion back, final fixation is being carried out, therefore, the clamping piece and the connecting piece that set up, can avoid the operation in-process, adjust the angle between clamping piece and the connecting piece repeatedly, the efficiency of two adjacent connecting rods of installation has been improved greatly.

Optionally, the fixing screw is slidably provided with a support, the support is sleeved on the fixing screw and located between the cover body and the locking sleeve, and a connecting rod is clamped between the support and the cover body.

Through adopting above-mentioned technical scheme, the support is joined in marriage in the setting, and at the in-process of fixing the connecting rod, the lid is used with the cooperation that joins in marriage the support, can increase the fixed effect to the connecting rod, and the lid can press from both sides the connecting rod with joining in marriage the support, prevents that the connecting rod from droing from the clamping piece.

Optionally, three clamping grooves are formed in the opposite surfaces between the cover body and the matching support, the clamping grooves in the cover body correspond to the clamping grooves in the matching support one by one, and the three groups of clamping grooves are different in size.

Through adopting above-mentioned technical scheme, the size diverse of three clamping groove for adapt to the connecting rod of different diameter sizes.

Optionally, a through round hole is formed in the locking sleeve, the axis of the round hole is perpendicular to the axis of the locking sleeve, an eccentric shaft penetrates through the round hole, one end of the eccentric shaft is located on the outer side of the locking sleeve, a steel bowl is arranged in the locking sleeve and slides along the length direction of the locking sleeve, a groove is formed in one end of the steel bowl, the eccentric shaft can be embedded in the groove, one end, away from the groove, of the steel bowl is an inwards concave arc surface, and the spherical surface of the universal ball is matched with the steel bowl.

Through adopting above-mentioned technical scheme, in the use, the staff rotates the eccentric shaft, under the effect of eccentric shaft, the eccentric shaft can promote the steel bowl and slide towards the direction of universal ball, the one end that makes the steel bowl indent cambered surface can closely laminate with universal ball, rotate the in-process of eccentric shaft gradually, the steel bowl can extrude universal ball on the nut, thereby reach the purpose of fixed universal ball, prevent to take place to rotate between universal ball and the nut, when the eccentric shaft is in the state of not screwing, can adjust the relative angle between two connecting pieces wantonly, realize the fixed of many planes multi-angle, and the eccentric shaft that sets up is carrying out the in-process fixed to universal ball, can realize that quick realizing is fixed to universal ball, fixed efficiency has been improved.

Optionally, a cylindrical rod is vertically and fixedly connected to the surface of the support facing the cover body, a slot corresponding to the cylindrical rod is formed in the surface of the cover body facing the support, and the cylindrical rod can be inserted into the slot.

Through adopting above-mentioned technical scheme, lid with join in marriage when holding tightly the connecting rod in the support, the lid moves towards joining in marriage the support, the cylinder pole can be pegged graft in the slot, the cylinder pole that sets up can prevent that lid and joining in marriage the position that holds in the palm the matched with clamping groove and take place to deviate, guarantee that lid and joining in marriage the clamping groove phase-match that holds in the palm.

Optionally, a plurality of mouse teeth are arranged on the surface of the support opposite to the locking sleeve.

Through adopting above-mentioned technical scheme, when set screw screwed to the lock sleeve on, join in marriage and hold in the palm and the lock sleeve butt, the rat tooth that sets up can intermeshing, increases and joins in marriage the frictional force between holding in the palm and the lock sleeve, guarantees the stability of its locking back structure.

Optionally, a spring is sleeved on the fixing screw, the spring is located between the support and the locking sleeve, one end of the spring abuts against the support, and the other end of the spring abuts against the locking sleeve.

Through adopting above-mentioned technical scheme, when set screw did not screw the lock sleeve, under spring force effect, make join in marriage and hold in the palm on can the lid all the time, can play the effect of locking in advance to the connecting rod, make things convenient for the operation in the art, avoid the operation repeatedly in the art, reduce the operation time.

Optionally, the clamping groove on the cover body is arc-shaped, the clamping groove on the support is V-shaped, and anti-slip blocks are uniformly arranged on the inner surface of the clamping groove on the cover body.

By adopting the technical scheme, the clamping groove on the support is V-shaped, and the maximum clamping force can be ensured when the connecting rod is fixed; the non-slip block that sets up can compress tightly the connecting rod on the surface, prevents when pressing from both sides tight connecting rod, and the connecting rod takes place to rotate.

Optionally, the fixing screw is sleeved with a spherical gasket, the spherical gasket is located between the bolt head and the cover body, and the spherical gasket can abut against the cover body.

Through adopting above-mentioned technical scheme, when set screw was not screwed to the lock and was sheathe in, the spherical gasket of setting can guarantee that the lid is nimble to be rotated, reduces the frictional force between lid and the bolt head to can adjust the angle of centre gripping connecting rod as required.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the connecting piece and the pair of clamping pieces are arranged, when the fracture position needs to be fixed, the fixing clamp is arranged at the position of two adjacent connecting rods, in the process of fixing the connecting rods, the angle between the clamping pieces and the connecting piece can be adjusted at any time according to the requirements of the actual operation environment, multi-plane and multi-angle fixing is realized, so that the requirements under the complex fixing operation environment are met, in the operation process, the connecting rods can be pre-fixed, fine adjustment can be performed on detailed parts after the pre-fixing is completed, and final fixing is performed after all the setting is completed;

2. under the effect of eccentric shaft, the eccentric shaft can promote the steel bowl and slide towards the direction of universal ball, makes the one end of steel bowl indent cambered surface closely laminate with universal ball, rotates the in-process of eccentric shaft gradually, and the steel bowl can extrude universal ball on the nut to reach the purpose of fixed universal ball, prevent to take place to rotate between universal ball and the nut.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

fig. 2 is an exploded view of an embodiment of the present application embodying a clamping member.

Description of reference numerals: 1. a connecting member; 11. a connecting rod; 12. a universal ball; 13. a nut; 14. a locking sleeve; 15. a circular hole; 16. an eccentric shaft; 17. a steel bowl; 18. a groove; 2. a clamping member; 21. a set screw; 211. a bolt head; 22. a cover body; 221. a slot; 23. preparing a support; 231. a cylindrical rod; 24. a clamping groove; 25. a spring; 26. mouse teeth; 27. a spherical spacer.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses universal multi-purpose fixation clamp. Referring to fig. 1, universal multi-purpose fixation clamp includes connecting piece 1 and a pair of symmetry setting clamping piece 2 at connecting piece 1 both ends, two clamping piece 2 can dismantle the both ends of connecting at connecting piece 1, when fixing human fracture department, connecting piece 1 is fixed, clamping piece 2 can the centre gripping connecting rod, two adjacent connecting rods of two clamping piece 2 can the centre gripping, and clamping piece 2 who sets up can rotate round connecting piece 1, can change the angle between two clamping piece 2 at any time, so that adapt to the requirement of the complicated operational environment of human fracture department.

Referring to fig. 1 and 2, the connecting member 1 includes a cylindrical connecting rod 11 and a pair of universal balls 12 symmetrically disposed at two ends of the connecting rod 11, the two universal balls 12 are in threaded connection with an end portion of the connecting rod 11, a pair of nuts 13 are sleeved on the connecting rod 11, the two nuts 13 are located between the two universal balls 12, the two nuts 13 can move along a length direction of the connecting rod 11, the nuts 13 are in ball-to-ball joint with the universal balls 12, and the two universal balls 12 can be clamped with the nuts 13 to prevent the nuts 13 from falling off the connecting rod 11; a locking sleeve 14 is arranged at one end of the nut 13 far away from the connecting rod 11, the end part of the locking sleeve 14 is in threaded connection with the nut 13, and one end of the locking sleeve 14 close to the nut 13 can be abutted against the spherical surface of the universal ball 12.

Furthermore, a through round hole 15 is formed in the locking sleeve 14, an eccentric shaft 16 penetrates through the round hole 15, one end of the eccentric shaft 16 is located on the outer side of the locking sleeve 14, the axis of the round hole 15 is perpendicular to the axis of the locking sleeve 14, a cylindrical steel bowl 17 is arranged in the locking sleeve 14 in a sliding mode, the steel bowl 17 can slide along the length direction of the locking sleeve 14, a groove 18 is formed in one end of the steel bowl 17, an inwards concave arc surface is formed in the other end of the steel bowl 17, the eccentric position of the eccentric shaft 16 can be embedded in the groove 18, one end, in the shape of the inwards concave arc surface, of the steel bowl 17 is matched with the spherical surface of the universal ball 12, in the using process, a worker rotates the eccentric shaft 16, under the action of the eccentric shaft 16, the eccentric shaft 16 can push the steel bowl 17 to slide towards the direction of the universal ball 12, one end, in the shape of the inwards concave arc surface of the steel bowl 17 can be tightly attached to the universal ball 12, in the process of gradually rotating the eccentric shaft 16, the steel bowl 17 can extrude the universal ball 12 onto the nut 13, therefore, the purpose of fixing the universal ball 12 is achieved, the universal ball 12 and the nut 13 are prevented from rotating, when the eccentric shaft 16 is in an untwisted state, the relative angle between the two connecting pieces 1 can be adjusted at will, and multi-plane and multi-angle fixing is achieved.

Referring to fig. 1 and 2, the clamping member 2 includes a horizontally disposed fixing screw 21, and a cover 22 and a support 23 disposed on the fixing screw 21, the fixing screw 21 is disposed coaxially with the locking sleeve 14, and an end of the fixing screw 21 is screwed to an end of the locking sleeve 14 away from the nut 13, an end of the fixing screw 21 away from the locking sleeve 14 is fixedly connected with a bolt head 211, the cover 22 and the support 23 are both sleeved on the fixing screw 21, and the cover 22 and the support 23 can slide along a length direction of the fixing screw 21, the cover 22 is disposed at an end of the fixing screw 21 close to the bolt head 211, the bolt head 211 can abut against a surface of the cover 22, the support 23 is disposed at an end close to the locking sleeve 14, and a connecting rod is clamped between the cover 22 and the support 23.

Furthermore, three clamping grooves 24 are formed in the opposite surfaces of the cover body 22 and the matching support 23, the clamping grooves 24 in the cover body 22 correspond to the clamping grooves 24 in the matching support 23 one by one, the three groups of clamping grooves 24 are distributed at equal intervals along the circumferential direction of the axis of the fixing screw 21, and the three groups of clamping grooves 24 are different in size and are used for adapting to connecting rods with different diameters; clamping groove 24 on lid 22 is arc, and clamping groove 24 on joining in marriage support 23 is the V type, when fixed to the connecting rod, can guarantee the biggest clamp force to fixedly connected with a plurality of non slipping spur (not shown in the figure) that distribute along clamping groove 24 length direction equidistance on the clamping groove 24 internal surface on lid 22, when pressing from both sides tight connecting rod, the non slipping spur that sets up can compress tightly the connecting rod on the surface, prevents that when pressing from both sides tight connecting rod, the connecting rod takes place to rotate.

Referring to fig. 1 and 2, a cylindrical rod 231 is vertically and fixedly connected to a surface of the matching holder 23 facing the cover 22, the cylindrical rod 231 extends toward the cover 22, an insertion groove 221 is formed in a surface of the cover 22 facing the matching holder 23, the cylindrical rod 231 can be inserted into the insertion groove 221, when the cover 22 and the matching holder 23 clamp the connecting rod, the cover 22 moves toward the matching holder 23, and the cylindrical rod 231 is arranged to prevent positions of the clamping grooves 24 on the cover 22 and the matching holder 23 from deviating, so as to ensure that the clamping grooves 24 on the cover 22 and the matching holder 23 are matched.

The cover is equipped with spring 25 on set screw 21, and spring 25 is located the lock sleeve 14 and joins in marriage and holds in the palm between 23 to spring 25 one end and lock sleeve 14 butt, one end in addition with join in marriage and hold in the palm 23 butt, when set screw 21 is not screwed lock sleeve 14, under spring 25 elastic force effect, make join in marriage and hold in the palm 23 and can be supported the lid 22 all the time, can play the effect of locking in advance to the connecting rod, make things convenient for the operation in the art, avoid the repeated operation in the art, reduce the operation time.

Referring to fig. 1 and 2, further, a plurality of mouse teeth 26 are fixedly connected to the opposite surfaces of the locking sleeve 14 and the support 23, the mouse teeth 26 are distributed along the circumferential direction of the axis of the fixing screw 21 at equal intervals, when the fixing screw 21 is screwed to the locking sleeve 14, the support 23 abuts against the locking sleeve 14, the arranged mouse teeth 26 can be meshed with each other, the friction force between the support 23 and the locking sleeve 14 is increased, and the stability of the structure after locking is ensured.

The spherical gasket 27 is arranged between the bolt head 211 and the cover body 22, the spherical gasket 27 is sleeved on the fixing screw 21 and can abut against the cover body 22, when the fixing screw 21 is not screwed to the locking sleeve 14, the arranged spherical gasket 27 can ensure that the cover body 22 can flexibly rotate, the friction force between the cover body 22 and the bolt head 211 is reduced, and the angle of the clamping connecting rod can be adjusted according to requirements.

The implementation principle of the universal multipurpose fixing clamp provided by the embodiment of the application is as follows: when the fracture position of a human body is fixed, a worker adopts a plurality of connecting rods and a fixing clamp according to actual needs, the fracture position is fixed by adopting four-side connection, when the connecting rods are arranged at the fracture position, the fixing clamp is connected to the positions of two adjacent connecting rods, the angle between the two clamping pieces 2 is adjusted firstly, after the adjustment is finished, the connecting rods are inserted into the clamping grooves 24, then the fixing screws 21 are screwed, and finally, the eccentric shafts 16 are rotated, so that the fixation between the two clamping pieces 2 and the connecting pieces 1 is firm.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a universal multi-purpose fixation clamp which characterized in that: the connecting rod clamping device comprises a connecting piece (1) and clamping pieces (2) symmetrically arranged at two ends of the connecting piece (1), wherein the clamping pieces (2) are used for fixing a connecting rod, the clamping pieces (2) are detachably fixed on the connecting piece (1), and the two clamping pieces (2) can rotate around the connecting piece (1);

the connecting piece (1) comprises a connecting rod (11), a pair of universal balls (12) symmetrically arranged at two ends of the connecting rod (11) and a pair of nuts (13) sleeved on the connecting rod (11), the connecting rod (11) and the two universal balls (12) are detachably and fixedly connected, the two nuts (13) are located between the two universal balls (12), the nuts (13) are in ball hinge connection with the universal balls (12), one end, far away from the connecting rod (11), of each nut (13) is provided with a locking sleeve (14) in threaded connection, and one end, close to the corresponding nut (13), of each locking sleeve (14) can abut against the surface of the corresponding universal ball (12);

clamping piece (2) include one end and lock sleeve (14) threaded connection's set screw (21) and cover and establish lid (22) on set screw (21), the one end that lock sleeve (14) were kept away from in set screw (21) is provided with bolt head (211), lid (22) can slide along the length direction of set screw (21), the one end of lock sleeve (14) can be kept away from in lid (22) in bolt head (211), can press from both sides tight connecting rod between lid (22) and lock sleeve (14).

2. The universal multi-purpose mounting clip of claim 1, wherein: it supports (23) to slide on set screw (21) to be provided with to join in marriage, join in marriage and ask (23) cover to establish on set screw (21), and join in marriage and ask (23) to be located between lid (22) and lock sleeve (14), join in marriage and be used for pressing from both sides tight connecting rod between support (23) and lid (22).

3. The universal multi-purpose mounting clip of claim 2, wherein: three clamping grooves (24) are formed in the opposite surfaces between the cover body (22) and the matching support (23), the clamping grooves (24) in the cover body (22) correspond to the clamping grooves (24) in the matching support (23) in a one-to-one mode, and the three groups of clamping grooves (24) are different in size.

4. The universal multi-purpose mounting clip of claim 1, wherein: the locking device is characterized in that a through round hole (15) is formed in the locking sleeve (14), the axis of the round hole (15) is perpendicular to the axis of the locking sleeve (14), an eccentric shaft (16) penetrates through the round hole (15), one end of the eccentric shaft (16) is located on the outer side of the locking sleeve (14), a steel bowl (17) is arranged in the locking sleeve (14), the steel bowl (17) slides along the length direction of the locking sleeve (14), a groove (18) is formed in one end of the steel bowl (17), the eccentric shaft (16) can be embedded in the groove (18), one end, away from the groove (18), of the steel bowl (17) is an inwards concave arc surface, and the spherical surface of the universal ball (12) is matched with the steel bowl (17).

5. The universal multi-purpose mounting clip of claim 2, wherein: the surface of the support (23) facing the cover body (22) is vertically and fixedly connected with a cylindrical rod (231), the surface of the cover body (22) facing the support (23) is provided with a slot (221) corresponding to the cylindrical rod (231), and the cylindrical rod (231) can be inserted into the slot (221).

6. The universal multi-purpose mounting clip of claim 2, wherein: the surfaces of the matching support (23) opposite to the locking sleeve (14) are provided with a plurality of mouse teeth (26).

7. The universal multi-purpose mounting clip of claim 2, wherein: the fixing screw (21) is sleeved with a spring (25), the spring (25) is located between the support (23) and the locking sleeve (14), one end of the spring (25) abuts against the support (23), and the other end of the spring abuts against the locking sleeve (14).

8. The universal multi-purpose mounting clip of claim 2, wherein: the clamping groove (24) on the cover body (22) is arc-shaped, the clamping groove (24) on the support (23) is V-shaped, and anti-skidding blocks are uniformly arranged on the inner surface of the clamping groove (24) on the cover body (22).

9. The universal multi-purpose mounting clip of claim 1, wherein: the fixing screw (21) is sleeved with a spherical gasket (27), the spherical gasket (27) is positioned between the bolt head (211) and the cover body (22), and the spherical gasket (27) can abut against the cover body (22).