CN217162553U

CN217162553U - Adjustable knee joint external fixing support

Info

Publication number: CN217162553U
Application number: CN202220975783.5U
Authority: CN
Inventors: 吴陈胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-08-12
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses to the relatively poor difficult drawback that makes the patient extremely bend the knee of knee joint rigidity effect of patient during shin bone fracture operation among the prior art, provide a regulation formula knee joint external fixation support, belong to medical instrument technical field, including base and support piece, the vertical setting of fixedly connected with just can height-adjusting's bracing piece on the base, support piece sets up in the bracing piece top, support piece includes knee joint supporting part and thigh backup pad, and thigh backup pad slope sets up, and the fixed setting of knee joint supporting part is in thigh backup pad upper end and for the curved surface structure of downwarping, be equipped with angle adjusting mechanism between bracing piece and the support piece. The height of the fixing support can be adjusted, and the angle of the supporting piece can be adjusted, so that the fixing support can be suitable for patients with different leg lengths, the knee joint position of the patient can be well supported, the patient can bend the knee extremely easily, and the tibial fracture operation can be performed favorably.

Description

Adjustable knee joint external fixing support

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to regulation formula knee joint external fixation support.

Background

The tibia fracture operation method mainly comprises the steps of incision reduction steel plate screws, intramedullary nail internal fixation, external fixation brackets and the like, wherein due to the anatomical characteristics of tibia, the inner side face and the front edge of the tibia are positioned under the skin, and no muscle is covered. The intramedullary nail internal fixation for treating the tibial fracture has the advantages of small soft tissue injury in operation, no soft tissue occupation effect in medial axis fixation, reliable fixation, early functional exercise, early walking with underground load and superior biological and mechanical treatment to other fixation treatments. With the continuous improvement of the current treatment concept and the internal fixation technology, the current intramedullary nail operation treatment is widely developed and obtains good curative effect. At present, tibia intramedullary nail is implanted in three ways, namely, suprapatellar approach, infrapatellar approach and peripatellar approach, although a special suprapatellar approach surgical instrument is used for protecting the patellofemoral joint cartilage, the patellofemoral joint cartilage can still be damaged. The peripatellar approach may cause outward movement of a progress nail point, cause poor fracture force line and cause inversion or eversion deformity, and doctors at the current basilar layer cannot routinely develop the fracture. The infrapatellar approach operation has the advantages of clear anatomy, minimally invasive operation, reliable fixation, simple internal fixation after the operation removal and the like, and is still the first choice for the operation approach mode of primary hospitals at present.

The operation mode is as follows: when the patella is put into the way, the affected limb needs to be bent to more than 90 degrees, and at ordinary times, the reduction and fixation are completed by adopting a triangular brace or a bedside support or a manual leg holding mode. Taking a longitudinal incision below the patella, the length of the longitudinal incision is about 4 cm, longitudinally incising skin, subcutaneous tissue and deep fascia, longitudinally incising patellar ligament, exposing the front of a tibial plateau, determining a needle feeding point to be positioned at the inner side of the outer ridge of the intercondylar ridge of the tibia under the perspective of a c-arm machine, accurately resetting the broken end of the fracture, sequentially opening, expanding marrow, placing corresponding main nails, locking a far end, a near end locking nail and a tail cap, repeatedly flushing an operative area, and suturing layer by layer to close the incision. At ordinary times, the knee joint position of a patient is reset and fixed by generally adopting a triangular brace or a bedside support or manually holding the legs, when the knee joint position of the patient is supported by adopting the triangular brace or the bedside support, the knee joint position is not suitable for the patient with different leg lengths, when the legs of the patient are longer, the knee joint position of the patient is not easy to bend extremely by using the support device, namely, the angle between the thigh and the shank is too large, the operation angle is influenced, and if the artificial leg holding mode is adopted, the knee joint position is very strenuous and is not easy to be maintained for a long time.

Disclosure of Invention

The utility model discloses to the relatively poor difficult drawback that makes the patient extremely bend the knee of knee position fixed effect of patient during shin bone fracture operation among the prior art, provide a regulation formula knee joint external fixation support, the height-adjustable of this fixed bolster, and support piece's angle can be adjusted to make this fixed bolster can be applicable to the patient of different leg length, can carry out better support to patient's knee joint position, make the patient extremely bend the knee more easily, be favorable to going on of shin bone fracture operation.

The invention aims to be realized by the following technical scheme: the utility model provides a regulation formula knee joint external fixation support, includes base and support piece, fixedly connected with vertical setting and the bracing piece that can height-adjusting on the base, support piece sets up in the bracing piece top, support piece includes knee joint supporting part and thigh backup pad, and thigh backup pad slope sets up, and the fixed curved surface structure that sets up in thigh backup pad upper end and for the downwarping of knee joint supporting part is equipped with the angle adjustment mechanism who is used for adjusting thigh backup pad inclination on the support piece between bracing piece and the support piece. In the above scheme, can realize through the bracing piece that sets up the utility model discloses a height-adjustable festival, and be used for the angle modulation of the support piece that directly supports patient knee joint position to make this fixed bolster can be applicable to the patient of different leg lengths, can carry out better support to patient's knee joint position, make the patient extremely bend the knee more, be favorable to going on of shin bone fracture operation.

Preferably, the angle adjusting mechanism comprises a connecting part fixed on the supporting part and a connecting seat fixed at the upper end of the supporting rod, the connecting part is rotatably connected with the connecting seat, and a locking part capable of locking the connecting part on the connecting seat is arranged between the connecting part and the connecting seat. Thereby realize the angle modulation between support piece and the bracing piece through the rotation of connecting portion and connecting seat to lock with the retaining member.

Preferably, the connecting seat comprises a base plate fixed at the upper end of the supporting rod, the upper end surface of the base plate is vertically and fixedly connected with two vertical plates which are parallel to each other, the connecting part is embedded between the two vertical plates, and through holes which correspond to each other are arranged on the connecting part and the vertical plates; the retaining member includes the bolt that passes through-hole on connecting portion and the riser, and the spiro union has the nut that enables two risers and press from both sides connecting portion tightly on the bolt. Thereby realize through bolt and nut cooperation that it is tight with connecting portion clamp through two risers.

Preferably, both of the side surface of the riser facing the connection portion and the side surface of the connection portion facing the riser are rough surfaces. Can increase the frictional force between connecting portion and the riser like this, more firm when using the retaining member to lock connecting portion on the connecting seat.

Preferably, the support rod comprises a connecting sleeve, a connecting rod capable of sliding along the length direction of the connecting sleeve is sleeved in the connecting sleeve, the connecting rod is vertically fixed on the base, and a locking piece capable of locking the connecting rod on the connecting sleeve is arranged between the connecting sleeve and the connecting rod.

Preferably, the connecting sleeve is provided with a plurality of positioning holes distributed along the length direction of the connecting sleeve, the positioning holes transversely penetrate through the connecting sleeve, the connecting rod is provided with a mounting hole transversely penetrating through the connecting rod and capable of being matched with the positioning holes, and the locking piece is a bolt capable of penetrating through the positioning holes and the mounting hole. The connecting sleeve and the connecting rod are detachable due to the arrangement, and the sterilization is convenient after the disassembly.

Preferably, the outer end of the bolt is fixedly connected with a pull ring. The setting of pull ring can be convenient for plug bolt.

Preferably, the base comprises a bottom plate, two sides of the upper end face of the bottom plate are fixedly connected with an L-shaped plate of an L-shaped structure bent towards the middle position above the bottom plate, a clamping groove is formed between the L-shaped plate and the bottom plate, and a stabilizing plate perpendicular to the length direction of the bottom plate is embedded into at least one clamping groove. The stability board can strengthen the stability of base, makes the base place more stably on the operating table, makes the utility model discloses be difficult for empting.

Preferably, the lower end face of the stabilizing plate is fixedly connected with a supporting block on each of two sides of the bottom plate, and the lower end faces of the supporting blocks are flush with the lower end face of the bottom plate.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses simple structure can realize carrying out better support to patient's knee joint position through altitude mixture control, angle modulation, makes the patient extremely bend the knee more, is favorable to going on of shin bone fracture operation.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a perspective view of the support member;

fig. 4 is a perspective view of the connecting sleeve;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a perspective view of the connecting rod;

FIG. 7 is a perspective view of the base;

the labels in the figure are: 1. the base, 2, support piece, 3, the bottom plate, 4, the L template, 5, the draw-in groove, 6, the firm board, 7, the supporting shoe, 8, the bracing piece, 9, the adapter sleeve, 10, the locating hole, 11, the connecting rod, 12, the mounting hole, 13, the locking piece, 14, the bolt, 15, the pull ring, 16, knee joint supporting part, 17, thigh backup pad, 18, angle adjustment mechanism, 19, connecting portion, 20, the connecting seat, 21, the retaining member, 22, the base plate, 23, the riser, 24, the through-hole, 25, the bolt, 26, the nut.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

example 1

As shown in fig. 1-7, an adjustable knee joint external fixation bracket comprises a base 1 and a support member 2, wherein the base 1 comprises a bottom plate 3, two sides of the upper end surface of the bottom plate 3 are respectively and fixedly connected with an L-shaped plate 4 of an L-shaped structure bent towards the middle position above the bottom plate 3, a clamping groove 5 is formed between the L-shaped plate and the bottom plate 3, and a stabilizing plate 6 perpendicular to the length direction of the bottom plate 3 is embedded in one of the clamping grooves 5. The lower end face of the stabilizing plate 6 is fixedly connected with a supporting block 7 on each of two sides of the bottom plate 3, and the lower end face of the supporting block 7 is flush with the lower end face of the bottom plate 3. The utility model discloses a vertical setting of fixedly connected with just can height-adjusting's bracing piece 8 on base 1, bracing piece 8 includes adapter sleeve 9, be equipped with a plurality of locating holes 10 that distribute along adapter sleeve 9 length direction on the adapter sleeve 9, locating hole 10 transversely runs through adapter sleeve 9, and adapter sleeve 9 endotheca is equipped with can be along the gliding connecting rod 11 of adapter sleeve 9 length direction, connecting rod 11 vertical fixation is on base 1, is equipped with on the connecting rod 11 transversely runs through connecting rod 11 and can with locating hole 10 complex mounting hole 12, is equipped with between adapter sleeve 9 and the connecting rod 11 and can locks connecting rod 11 locking piece 13 on adapter sleeve 9, locking piece 13 is for passing locating hole 10 and the bolt 14 of

mounting hole

12, 14 outer end fixedly connected with pull ring 15 of bolt.

Support piece 2 sets up in 8 tops of bracing piece, support piece 2 includes knee joint supporting part 16 and thigh backup pad 17, and thigh backup pad 17 slope sets up, and knee joint supporting part 16 is fixed to be set up in thigh backup pad 17 upper end and for the curved surface structure of downwarping, be equipped with the angle adjustment mechanism 18 that is used for adjusting thigh backup pad 17 inclination on support piece 2 between bracing piece 8 and the support piece 2, angle adjustment mechanism 18 is including fixing connecting portion 19 on support piece 2, fixing the connecting seat 20 in the bracing piece 8 upper end, rotates between connecting portion 19 and the connecting seat 20 to be connected and is equipped with the retaining member 21 that can lock connecting portion 19 on connecting seat 20 between connecting portion 19 and the connecting seat 20. The connecting seat 20 comprises a base plate 22 fixed at the upper end of the supporting rod 8, the upper end surface of the base plate 22 is vertically and fixedly connected with two vertical plates 23 which are parallel to each other, the connecting part 19 is embedded between the two vertical plates 23, and through holes 24 which are corresponding to each other are arranged on the connecting part 19 and the vertical plates 23; the locking piece 21 comprises a bolt 25 passing through the connecting part 19 and a through hole 24 on the vertical plate 23, and a nut 26 enabling the two vertical plates 23 to clamp the connecting part 19 is screwed on the bolt 25. The side of the riser 23 facing the connection portion 19 and the side of the connection portion 19 facing the riser 23 are both roughened.

The utility model discloses well all parts all adopt the aluminum alloy to make, X can pass like this the utility model discloses, make the utility model discloses the perspective can not influence the formation of image. When using, place base 1 on the operating table, according to patient's thigh and shank length, the height of adjustment bracing piece 8, during the adjustment, extract bolt 14 earlier, lift up adapter sleeve 9 to the height of adjustment bracing piece 8, after the adjustment finishes, insert bolt 14 again on connecting rod 11 between mounting hole 12 and the locating hole 10 that aligns with mounting hole 12, thereby accomplish the high locking to bracing piece 8. The nut 26 is then loosened, the support member 2 can now be rotated to a suitable angle, and then the nut 26 is tightened to clamp the connecting section 19 with the connecting section 20. Just so can make the utility model discloses be fit for different patients, carry out better support to patient's knee joint position, make the patient extremely bend the knee more, be favorable to going on of shin bone fracture operation. The utility model discloses can dismantle, pull down nut 26 from bolt 25, just can dismantle support piece 2 from 8 upper ends of bracing piece, extract bolt 14, just can separate adapter sleeve 9 and connecting rod 11 in the bracing piece 8, thereby make the utility model discloses form a plurality of independent parts, just so can be convenient for right the utility model discloses an each part is disinfected.

It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended manner, i.e. in a manner equivalent to "including at least … …", and not in a closed manner, i.e. in a manner not to be interpreted as "including … … only".

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a regulation formula knee joint external fixation support, a serial communication port, including base (1) and support piece (2), fixedly connected with is vertical to be set up and bracing piece (8) that can height-adjusting on base (1), support piece (2) set up in bracing piece (8) top, support piece (2) include knee joint supporting part (16) and thigh backup pad (17), and thigh backup pad (17) slope sets up, and knee joint supporting part (16) are fixed to be set up in thigh backup pad (17) upper end and for the curved surface structure of downwarping, be equipped with between bracing piece (8) and support piece (2) and be used for adjusting thigh backup pad (17) inclination's on support piece (2) angle adjustment mechanism (18).

2. The adjustable external knee fixing bracket according to claim 1, wherein the angle adjusting mechanism (18) comprises a connecting part (19) fixed on the support member (2), a connecting seat (20) fixed on the upper end of the support rod (8), the connecting part (19) is rotatably connected with the connecting seat (20), and a locking part (21) capable of locking the connecting part (19) on the connecting seat (20) is arranged between the connecting part (19) and the connecting seat (20).

3. The adjustable external knee fixing bracket according to claim 2, wherein the connecting seat (20) comprises a base plate (22) fixed on the upper end of the supporting rod (8), two vertical plates (23) parallel to each other are vertically and fixedly connected to the upper end surface of the base plate (22), the connecting part (19) is embedded between the two vertical plates (23), and through holes (24) corresponding to each other are formed in the connecting part (19) and the vertical plates (23); the locking piece (21) comprises a bolt (25) penetrating through holes (24) in the connecting portion (19) and the vertical plates (23), and a nut (26) enabling the two vertical plates (23) to clamp the connecting portion (19) is connected to the bolt (25) in a threaded mode.

4. The adjustable external knee fixation brace of claim 3, wherein the side of the riser (23) facing the connection portion (19) and the side of the connection portion (19) facing the riser (23) are roughened.

5. The adjustable knee joint external fixation bracket according to claim 1, wherein the support rod (8) comprises a connecting sleeve (9), a connecting rod (11) capable of sliding along the length direction of the connecting sleeve (9) is sleeved in the connecting sleeve (9), the connecting rod (11) is vertically fixed on the base (1), and a locking piece (13) capable of locking the connecting rod (11) on the connecting sleeve (9) is arranged between the connecting sleeve (9) and the connecting rod (11).

6. The adjustable knee external fixation bracket according to claim 5, wherein the connecting sleeve (9) is provided with a plurality of positioning holes (10) distributed along the length direction of the connecting sleeve (9), the positioning holes (10) transversely penetrate through the connecting sleeve (9), the connecting rod (11) is provided with a mounting hole (12) transversely penetrating through the connecting rod (11) and capable of being matched with the positioning holes (10), and the locking member (13) is a bolt (14) capable of penetrating through the positioning holes (10) and the mounting hole (12).

7. The adjustable knee external fixation brace according to claim 6, wherein a pull ring (15) is fixedly attached to the outer end of the pin (14).

8. The adjustable external knee fixing bracket according to claim 1, wherein the base (1) comprises a bottom plate (3), two sides of the upper end surface of the bottom plate (3) are fixedly connected with an L-shaped plate (4) which is bent towards the middle position above the bottom plate (3) and has an L-shaped structure, a clamping groove (5) is formed between the L-shaped plate and the bottom plate (3), and a stabilizing plate (6) which is perpendicular to the length direction of the bottom plate (3) is embedded in at least one clamping groove (5).

9. The adjustable external knee fixation brace according to claim 8, wherein the lower end surface of the fixation plate (6) is fixedly connected with a support block (7) on each side of the bottom plate (3), and the lower end surfaces of the support blocks (7) are flush with the lower end surface of the bottom plate (3).