CN217162309U

CN217162309U - Lower limb osteotomy orthopedic femoral head center marking device

Info

Publication number: CN217162309U
Application number: CN202220886944.3U
Authority: CN
Inventors: 张涛; 易刚; 喻林; 张磊; 梁涛; 关钛元; 王丽彬
Original assignee: Affiliated Hospital of Traditional Chinese Medicine TCM of Southwest Medical University
Current assignee: Affiliated Hospital of Traditional Chinese Medicine TCM of Southwest Medical University
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-08-12
Anticipated expiration: 2032-04-18

Abstract

The utility model discloses a lower limbs cut orthopedic femoral head center mark device of bone, it includes the stereoplasm support, and the lower extreme opening part of support is connected with the fixed band, and on the fixed band can be fixed in the patient thigh with the support, the support top was connected with the flexible connecting rod that stretches to patient femoral head center top, and flexible connecting rod can be around its one end with the leg joint control and rotate and fix a position, and flexible connecting rod's the other end is fixed with the branch that upwards extends, and the upper end of branch is connected with the fixed part that is used for connecting the power line pole. The femoral head adjusting device has the advantages that the bracket is fixedly worn on the thigh of a patient through the fixing band before osteotomy orthopedic operation, the telescopic connecting rod on the bracket is adjusted to the proper length and rotates left and right to enable the supporting rod at one end to be positioned right above the center of the femoral head, then the locking nut is screwed up for positioning, then one end of the force line rod is connected with the fixing part at the upper end of the supporting rod, when the force line rod is adjusted by rotating left and right in the operation, one end of the force line rod is always aligned with the center of the femoral head, the operation procedure is simplified, the time is saved, and the operation efficiency is improved.

Description

Lower limb osteotomy orthopedic femoral head center marking device

Technical Field

The utility model relates to an operation auxiliary device, concretely relates to orthopedic femoral head center mark device of low limbs osteotomy.

Background

When the osteotomy orthopedic operation is performed, X-ray perspective is needed in the operation, whether a force line is restored to the center of a knee joint or not is evaluated, a force line rod is needed at the moment, the upper edge of the force line rod passes through the center of a femoral head through X-ray perspective, the lower edge of the force line rod passes through the center of an ankle joint, the force line rod is respectively placed at the center of the femoral head and the center of the ankle joint from top to bottom, whether the force line rod passes through the center of the knee joint or not is judged, and the osteotomy angle needs to be continuously adjusted in the process. The problems existing in the prior art are as follows: when the perspective line rod passes through the center of the femoral head, a fixed tool is lacked, the tool can mark the position of the center of the femoral head and is connected with one end of the force line rod, so that the problem that whether the force line rod passes through the center of the femoral head needs to be determined through perspective after adjustment every time in the continuous adjustment process of the force line rod in the operation is solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lower limbs orthopedics femoral head center mark device that cuts bone, aim at overcoming the above-mentioned not enough that exists among the prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a lower limbs cut orthopedic femoral head center mark device of bone, its includes that the opening stretches over the stereoplasm support on patient's thigh downwards, the lower extreme opening part of support is connected with the fixed band, the fixed band walk around patient's thigh lower part and can with the support is fixed in on the patient's thigh, the support top is connected with the telescopic connection rod that stretches to patient's femoral head center top, telescopic connection rod can wind its with rotate and fix a position about leg joint's one end, telescopic connection rod's the other end is fixed with the branch that upwards extends, the upper end of branch is connected with the fixed part that is used for connecting the power line pole.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the one end of fixed band with the support body fixed connection of support opening one side, the other end of fixed band has seted up a plurality of fixed orificess along the even spaced of area length direction, the fixed couple that is equipped with on the support body of support opening opposite side, the fixed band is equipped with the one end of fixed orifices is walked around patient's thigh lower part and is made the support compress tightly behind thigh upper portion through the fixed orifices with the couple is hung and is held fixedly.

The beneficial effect who adopts above-mentioned further scheme is that, simple structure, the fixed orifices is fixed with the mode that the couple was hung, easily carries out fixed operation and dismantles and relieves.

Further, the fixing belt is a belt or a cloth belt with the width of 2-4 cm.

Adopt above-mentioned further scheme's beneficial effect be, the belt or the strap of above-mentioned width within range can guarantee that the support can be effectively fixed in patient thigh department, and because of the relative broad of the area body, little to the injury of shank.

Further, the fixing band is an elastic belt.

Adopt above-mentioned further scheme's beneficial effect to be, the area body can stretch out and draw back to a certain extent, guarantees that fixed effect is better.

Furthermore, a metal ring for preventing damage caused by pulling is embedded in the fixing hole.

Adopt above-mentioned further scheme's beneficial effect be, prevent that the couple from hanging to hold and to damage the area body of fixed orifices periphery because of the pulling force is great behind the fixed orifices.

Furthermore, a rotating shaft is fixed to the top of the support, a rotating sleeve is fixed to one end of the telescopic connecting rod, the rotating sleeve is rotatably sleeved on the rotating shaft, a locking nut is connected to the upper portion of the rotating shaft in a threaded mode, and when the locking nut is screwed, the rotating sleeve is pressed and positioned at the top of the support.

The adoption of the further scheme has the beneficial effects that the telescopic connecting rod can rotate relative to the bracket in the left-right direction, so that the alignment with the center of the femoral head is realized; simple structure, simple to operate easily carries out locking location and unblock operation.

Furthermore, the fixed part comprises a lantern ring, and the lantern ring is connected with the upper end of the support rod in a coaxial rotating mode through a rotating pin extending outwards in the radial direction.

The beneficial effect who adopts above-mentioned further scheme is that, the lantern ring internal diameter is close with the power line pole, and the power line pole can directly pass the lantern ring and can be connected, and the rotation pin only has the rotation degree of freedom around self central axis, guarantees during the rotation that the lantern ring still aligns with below femoral head center.

Further, flexible connecting rod includes the first body of rod and the second body of rod, axial square hole has been seted up along first body of rod one end center, second body of rod one end be with square hole complex square bar, the square bar inserts in the square hole and sliding fit, threaded connection has positioning bolt on the outer wall of the first body of rod, positioning bolt compresses tightly the location when screwing square bar in the square hole.

The telescopic connecting rod has the advantages that the structure is simple, the total length of the telescopic connecting rod can be adjusted in a telescopic mode, and the locking length is unchanged after the adjustment.

Compared with the prior art, the utility model discloses a technological effect and advantage do:

going to cut bone orthopedic preoperation will the utility model provides a mark device's support is fixed to be worn on patient's thigh through the fixed band, under the X-ray perspective is supplementary, telescopic link to suitable length and the left and right rotation on the regulation support make the branch of its one end be located the femoral head center directly over, then screw up lock nut, make telescopic link no longer have the left and right rotation degree of freedom, can fix a position, be connected power line pole one end and the fixed part of branch upper end afterwards, then when the art rotates adjustment power line pole about again, its one end aligns with the femoral head center all the time, need not repeatedly through X-ray determination power line pole after the adjustment and the alignment of femoral head center, simplify the operation procedure, save time, improve operation efficiency.

Drawings

Fig. 1 is a schematic view of a use state of a lower limb osteotomy orthopedic femoral head center marking device provided by the invention;

FIG. 2 is a front view of the lower limb osteotomy orthopaedic femoral head center marking device of FIG. 1;

FIG. 3 is a left side view of the lower limb osteotomy orthopaedic femoral head center marker of FIG. 2;

fig. 4 is a schematic view of the telescoping linkage of fig. 3 with the first and second rods disengaged.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a support; 2. fixing belts; 3. a telescopic connecting rod; 4. a strut; 5. a fixing hole; 6. hooking; 7. a rotating shaft; 8. rotating the sleeve; 9. locking the nut; 10. a collar; 11. a rotation pin; 12. a first rod body; 13. a second rod body; 14. a square hole; 15 square bars; 16. and (6) positioning the bolt.

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 the description of the present invention, if terms indicating orientation such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. are used, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the utility model provides a orthopedic femoral head center mark device of low limbs osteotomy, it includes that the opening spanes stereoplasm support 1 on patient's thigh downwards, the lower extreme opening part of support 1 is connected with fixed band 2, fixed band 2 walk around patient's thigh lower part and can with support 1 is fixed in on the patient's thigh, support 1 top is connected with the telescopic link 3 that stretches to patient's femoral head center top, telescopic link 3 can wind its with the one end that support 1 is connected is rotated and is fixed a position about, telescopic link 3's the other end is fixed with the branch 4 that upwards extends, the upper end of branch 4 is connected with the fixed part that is used for connecting the power line pole.

In order to ensure the comfort after fixation and avoid the front and back slippage on the thighs of the patient, an air permeable cushion layer can be arranged on the inner side surface of the bracket, which is in contact with the thighs, and the air permeable cushion layer is preferably made of cloth with large friction resistance with the skin. The material of the bracket can be metal or hard plastic.

The utility model discloses an embodiment, the one end of fixed band 2 with the support body fixed connection of 1 opening one side of support, a plurality of fixed orificess 5 have been seted up along the even spaced of area length direction to the other end of fixed band 2, the fixed couple 6 that is equipped with on the support body of 1 opening opposite side of support, fixed band 2 is equipped with patient's thigh lower part is walked around to the one end of fixed orifices 5 and makes support 1 compress tightly and pass through behind thigh upper portion fixed orifices 5 with couple 6 is hung and is held fixedly.

It is understood that the hook is not necessarily in the shape of a hook, but may be in the shape of a column that can be stably coupled to the fixing hole; in addition, the fixing hole can be a buckle seam, and the hook is a matched buckle body, so that connection can be realized. It should be noted that the fixing strap and the bracket can also be fixed by a binding manner or nylon buttons.

In one embodiment of the present invention, the fixing band 2 is a belt or a cloth band with a width of 2-4 cm.

In an embodiment of the present invention, the fixing band 2 is an elastic belt.

It should be noted that the thickness of the fixing band is suitable, so as to ensure that the band is not broken or damaged in other forms when the frame body is effectively fixed on the thigh of the patient.

In an embodiment of the present invention, a metal ring for preventing damage is embedded in the fixing hole 5.

It will be appreciated that when the fixing strap is a tape, it is preferable that a metal ring should be embedded in the fixing hole, because the fixing hole of the tape has a limited ability to withstand deformation or damage due to a tensile force.

In an embodiment of the present invention, the top of the support 1 is fixed with a rotating shaft 7, one end of the telescopic connecting rod 3 is fixed with a rotating sleeve 8, the rotating sleeve 8 is sleeved on the rotating shaft 7, the upper portion of the rotating shaft 7 is connected with a locking nut 9 by a thread, when the locking nut 9 is screwed, the rotating sleeve 8 is pressed and positioned on the top of the support 1.

It can be understood that besides the above-mentioned manner of rotationally connecting and positioning the telescopic link rod and the bracket, there may be other various manners, such as not having a lock nut, but connecting the rotating shaft itself with the top of the bracket through a screw thread, when unscrewed, the rotating sleeve can rotate relative to the rotating shaft, when screwed, the rotating sleeve is also pressed on the bracket, the friction is large, and the rotation is not easy, that is, the positioning is realized.

In one embodiment of the present invention, the fixing portion comprises a collar 10, the collar 10 is coaxially rotatably connected to the upper end of the rod 4 by a radially extending rotating pin 11.

It should be noted that the lower part of the rotating pin is connected with the upper end of the supporting rod in a circumferential rotating mode and positioned axially through a T-shaped structure.

In an embodiment of the present invention, the telescopic link 3 includes a first rod 12 and a second rod 13, an axial square hole 14 is formed at the center of one end of the first rod 12, one end of the second rod 13 is a square rod 15 fitted with the square hole 14, the square rod 15 is inserted into the square hole 14 and is in sliding fit, a positioning bolt 16 is screwed on the outer wall of the first rod 12, and the positioning bolt 16 can be pressed and positioned when screwed, the square rod 15 in the square hole 14.

It should be noted that, for convenience of operation, the positioning bolt and the lock nut of the present invention are preferably in a hand-tightening manner, and do not require a special tool such as a wrench.

The basic principle of the utility model is, go to cut before the orthopedics, span the support on lying the thigh of the patient on the operation table, be close to the root of the thigh, then fix the support on the patient thigh through the fixed band, adjust telescopic link to suitable length on the support, under the X-ray perspective is supplementary, it makes telescopic link one end's branch be located directly over the femoral head center to control the rotation, then tighten lock nut, make telescopic link no longer control pivoted degree of freedom, accomplish the location at femoral head center promptly, be connected the fixed part of power line pole one end and branch upper end afterwards, when then rotating the adjustment power line pole about in the art again, its one end aligns with the femoral head center all the time.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a lower limbs cut orthopedic femoral head center mark device of bone, its characterized in that, includes that the opening spanes stereoplasm support (1) on patient's thigh downwards, the lower extreme opening part of support (1) is connected with fixed band (2), fixed band (2) walk around patient's thigh lower part and can with on support (1) is fixed in patient's thigh, support (1) top is connected with flexible connecting rod (3) that stretch to patient's femoral head center top, flexible connecting rod (3) can wind its with the one end that support (1) is connected is rotated and is fixed a position about, the other end of flexible connecting rod (3) is fixed with branch (4) that upwards extend, the upper end of branch (4) is connected with the fixed part that is used for connecting the power line pole.

2. The lower limb osteotomy orthopedic femoral head center marking device according to claim 1, wherein one end of the fixing band (2) is fixedly connected with a frame body on one side of an opening of the support (1), a plurality of fixing holes (5) are formed in the other end of the fixing band (2) at uniform intervals along a band length direction, a hook (6) is fixedly arranged on the frame body on the other side of the opening of the support (1), and one end of the fixing band (2) provided with the fixing holes (5) bypasses the lower part of a thigh of a patient and enables the support (1) to be tightly pressed on the upper part of the thigh and then to be fixedly hung with the hook (6) through the fixing holes (5).

3. The lower limb osteotomy orthopedic femoral head center marking device according to claim 2, wherein the fixing strap (2) is a strap or a cloth strap with a width of 2-4 cm.

4. The lower limb osteotomy orthopedic femoral head center marking device according to claim 3, wherein the securing strap (2) is an elastic strap.

5. The lower limb osteotomy orthopedic femoral head center marking device according to claim 3, wherein a metal ring for preventing from being damaged is embedded at the fixing hole (5).

6. The lower limb osteotomy orthopedic femoral head center marking device according to claim 2, wherein a rotating shaft (7) is fixed at the top of the support (1), a rotating sleeve (8) is fixed at one end of the telescopic connecting rod (3), the rotating sleeve (8) is sleeved on the rotating shaft (7), a locking nut (9) is connected to the upper portion of the rotating shaft (7) in a threaded manner, and when the locking nut (9) is screwed, the rotating sleeve (8) is pressed and positioned at the top of the support (1).

7. The lower limb osteotomy orthopaedic femoral head center marking device according to claim 2, wherein said fixation portion comprises a collar (10), said collar (10) being coaxially and rotatably connected to said upper end of said strut (4) by means of a radially outwardly extending rotation pin (11).

8. The lower limb osteotomy orthopedic femoral head center marking device according to any one of claims 1 to 7, wherein the telescopic link (3) comprises a first rod body (12) and a second rod body (13), an axial square hole (14) is formed in the center of one end of the first rod body (12), a square rod (15) matched with the square hole (14) is arranged at one end of the second rod body (13), the square rod (15) is inserted into the square hole (14) and is in sliding fit, a positioning bolt (16) is connected to the outer wall of the first rod body (12) in a threaded manner, and the positioning bolt (16) can press and position the square rod (15) in the square hole (14) when being screwed.