CN213665552U

CN213665552U - Femoral joint tapping positioning device

Info

Publication number: CN213665552U
Application number: CN202022151218.0U
Authority: CN
Inventors: 谢庆平
Original assignee: Zhejiang Free Trade Zone Jacob International Trade Co ltd
Current assignee: Zhejiang Free Trade Zone Jacob International Trade Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-07-13
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses a femoral joint tapping positioning device, which comprises a left guide plate, a right guide plate and a sleeve which are symmetrical and spliced, wherein the left guide plate comprises a bone clamping piece and a positioning rod, the bone clamping pieces of the left guide plate and the right guide plate are folded to enclose the femur, the locating rod is semicircular, the front end part of the locating rod is connected with the tail part of the bone clamping piece, the locating rods of the left and right guide plates are spliced to form a cylindrical structure, the sleeve is sleeved in the cylindrical structure locating rod and fastens the locating rod, the utility model adopts a split type guide plate structure, and the left and right guide plates can be accurately inserted and clamp the thighbone through the fixation of the sleeve, the sleeve is provided with the star-shaped handle and a plurality of positioning holes, and the star-shaped handle is matched with the guide sleeve, so that a plurality of driven Kirschner wires are parallel to each other, the positioning error rate in the operation is reduced, the speed of positioning operation is accelerated, the compression and sliding of the femoral fracture are facilitated, and the close contact and the fixation of the fracture are ensured.

Description

Femoral joint tapping positioning device

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a femoral joint trompil positioner convenient to thighbone neck kirschner wire guide, location and male.

Background

The femur is the longest tubular bone of the human body, the upper end of the femur and the acetabulum form a hip joint, and the lower end of the femur and the upper end of the patella tibia form a knee joint to support the weight of the whole body.

The femoral fracture generally occurs at the proximal end, the fracture part needs to be reset and the bone defect needs to be repaired in the operation, the integrity of the bone is recovered, and therefore the fracture part or the repair part needs to be inserted with a plurality of kirschner wires.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems existing in the prior art; a femoral arthrotomy positioning device is provided that facilitates guidance, positioning and insertion of a femoral neck K-wire.

In order to solve the technical problem, the utility model mainly adopts the following technical proposal:

the utility model provides a femoral joint trompil positioner for the ke shi needle location and the guide of femoral neck, the device includes left side guide board, right side guide board and the sleeve of bilateral symmetry and amalgamation, left side guide board includes bone clamping piece and locating lever, the bone clamping piece is the arc structure, and the bone clamping piece of left side guide board and right side guide board folds and encloses above-mentioned thighbone, the locating lever is the semicircle form, and tip and the afterbody of bone clamping piece are connected before the locating lever, and the locating lever amalgamation of left side guide board and right side guide board forms cylindric structure, cylindric structure diameter with sleeve hole diameter is identical and insert and locate the sleeve hole, adopts the piecing formula guide plate structure to through telescopic fixed, make left side guide board and right side guide board insert the thighbone in the accuracy fast and the amalgamation constitutes whole clamping structure, guaranteed that the device in the operation is.

Preferably, the bone clamping piece is made of an elastic material, and the clamping force of the bone clamping piece on the femoral head can be flexibly adjusted within a certain range.

Preferably, the bone clamping piece and the positioning rod form an included angle of 110-145 degrees, and the included angle accords with the degree of the normal cervical shaft angle of Chinese, so that accurate leading-in of the Kirschner wire is facilitated.

As preferred, the bone clamping piece tail of left side guide board is equipped with the lug, the bone clamping piece tail of right side guide board is equipped with the shrinkage pool, the lug with the shrinkage pool is identical and inlays and locate in the shrinkage pool, and through the nested cooperation of lug and shrinkage pool, the mutual gomphosis of bone clamping piece of the bone clamping piece of messenger left side guide board and right side guide board, the location is accurate, firm in connection.

Preferably, the front end of the cylindrical structure is provided with an external thread, the front end of the inner hole of the sleeve is provided with an internal thread matched with the external thread of the cylindrical structure, the sleeve is inserted into the cylindrical structure and fixedly connected with the thread of the cylindrical structure, and the spliced cylindrical structure positioning rod is more stable and reliable by screwing the sleeve, so that the device is prevented from loosening.

Preferably, the middle part of the positioning rod is provided with a semicircular groove which extends along the axis of the positioning rod and is provided with openings at two ends, the groove of the left guide plate and the groove of the right guide plate are spliced to form a guide hole, and the diameter of the guide hole is matched with that of the Kirschner wire and is used for accommodating the Kirschner wire.

Preferably, the handle is arranged at the tail end of the sleeve and is of a star-shaped structure, a plurality of positioning holes penetrating through the handle are formed in the handle, the star-shaped handle is convenient for a doctor to hold the handle with one hand, and the plurality of positioning holes which are uniformly distributed and spaced avoid the sleeve from rotating or shifting for many times in the operation, so that the operation progress is accelerated.

Preferably, the device further comprises a guide sleeve, the outer diameter of the guide sleeve is the same as that of the positioning hole and is inserted into the positioning hole, the inner diameter of the guide sleeve is matched with the diameter of the Kirschner wire and is used for accommodating the Kirschner wire, the positioning holes distributed in a plum blossom shape are utilized, the guide sleeve can be inserted into the corresponding positioning hole as required, multiple driven Kirschner wires are ensured to have accurate insertion parallelism and insertion distance, and the insertion of the Kirschner wires cannot cause mutual interference due to different angles or distances.

The utility model has the advantages that: the device adopts the piece formula guide plate structure, it is fixed through telescopic, make left side guide board and right side guide board can insert in the thighbone fast and the concatenation constitutes whole clamping structure, it is whole firm and reliable to have guaranteed the device in the operation, set up the stellate handle and be equipped with a plurality of locating holes and guide pin bushing on the sleeve, make many inserted ke shi needles be parallel to each other and keep unanimous with the shaft of the neck angle, reduce the positioning error rate in the operation, accelerate the speed of location operation, also be favorable to the compression slip of thighbone fracture department, thereby guarantee the in close contact with and the fixed of fracture department, be favorable to the healing of fracture.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded schematic view of the structure of fig. 1.

In the figure, 1, a left guide plate, 11, a bone clamping piece, 12, a positioning rod, 13, a convex block, 14, external threads, 15, a groove, 2, a right guide plate, 21, a concave hole, 3, a sleeve, 31, a handle, 32, a positioning hole and 4, a guide sleeve are arranged.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): the femoral joint hole-opening positioning device of the embodiment is used for positioning and guiding a kirschner wire of a femoral neck, as shown in figures 1 and 2, the device comprises a left guide plate 1, a right guide plate 2, a sleeve 3 and a guide sleeve 4 which are in bilateral symmetry and are spliced, the left guide plate comprises a bone clamping piece 11 and a positioning rod 12, the bone clamping piece is made of elastic materials and is in an arc structure, the tail part of the bone clamping piece of the left guide plate is designed with a convex block 13, the tail part of the bone clamping piece of the right guide plate is designed with a concave hole 21, the convex block is matched with the concave hole and is embedded in the concave hole, the bone clamping pieces of the left guide plate and the right guide plate are folded to enclose the femoral bone, the positioning rod is in a semicircular shape, the front end part of the positioning rod is connected with the tail part of the bone clamping piece, the bone clamping piece and the positioning rod form an included angle of 135 degrees, the design of the preceding tip of above-mentioned cylindric structure has external screw thread 14, the preceding tip design of sleeve hole has the internal thread with above-mentioned cylindric structure external screw thread matched with, the sleeve is inserted and is located on above-mentioned cylindric structure and with cylindric structure thread rigid coupling, the middle part design of locating lever has along the locating lever axis extend and both ends open-ended semicircular groove 15, the recess amalgamation of left side guide board and right side guide board forms the bullport, the bullport diameter agrees with and holds kirschner wire with above-mentioned kirschner wire diameter, there is the handle 31 of star type structure at sleeve tail end design, on hand the design have a plurality of the same and locating hole 32 that are plum blossom form and distribute, the external diameter of above-mentioned guide pin bushing is the same with the aperture of above-mentioned location side opening.

During the internal fixation operation of femoral fracture, firstly, a left guide plate and a right guide plate are accurately inserted into two sides of femoral head respectively and corresponding bone clamping pieces are attached to the bone surface of the femoral head, then positioning rods of the left guide plate and the right guide plate are spliced to form a cylindrical structure, then a sleeve is sleeved into the cylindrical structure and is screwed in a rotating mode, the left guide plate and the right guide plate form an integral structure, the angles of the positioning rods of the cylindrical structure and the femoral neck shaft angle are basically consistent, according to the condition of fracture, a first kirschner wire is firstly driven into the position along the central positioning hole of a handle, the positioning rods of the cylindrical structure are guided into the femoral neck along the central guiding hole, then a guide sleeve is inserted into the corresponding positioning hole of a star-shaped handle, a second kirschner wire is driven into the femoral neck along the inner hole of the guide sleeve, and in turn, a third kir.

In the description of the present invention, the technical terms "upper", "lower", "front", "rear", "left", "right", "longitudinal", "horizontal", "inner", "outer" and the like indicate the direction or the position relationship based on the direction or the position relationship shown in the drawings, and the technical solution of the present invention is only for the convenience of description and understanding, and the above description is not limiting to the present invention, the present invention is not limited to the above description, and the changes, modifications, additions or replacements made by the ordinary skilled in the art within the essential scope of the present invention should be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a femoral joint trompil positioner for the ke shi needle location and the guide of thighbone neck which characterized in that: the device includes left guide board (1), right guide board (2) and sleeve (3) of bilateral symmetry and amalgamation, left side guide board includes bone clamping piece (11) and locating lever (12), the bone clamping piece is the arc structure, and the bone clamping piece of left side guide board and right guide board folds and encloses and closes above-mentioned thighbone, the locating lever is half circular, the end is connected with the afterbody of bone clamping piece before the locating lever, and the locating lever amalgamation of left side guide board and right guide board forms cylindric structure, cylindric structure diameter with sleeve hole diameter is identical and insert and locate in the sleeve hole.

2. The femoral arthroplasty positioning device of claim 1, wherein: the bone clamping piece (11) is made of elastic material.

3. The femoral arthroplasty positioning device of claim 1, wherein: the bone clamping piece (11) and the positioning rod (12) form an included angle of 110-145 degrees.

4. The femoral arthroplasty positioning device of claim 1, 2 or 3, wherein: the bone splint tail of left side guide board (1) is equipped with lug (13), the bone splint tail of right side guide board (2) is equipped with shrinkage pool (21), the lug with the shrinkage pool is identical and inlays to locate in the shrinkage pool.

5. The femoral arthroplasty positioning device of claim 4, wherein: the front end part of the cylindrical structure is provided with an external thread (14), the front end part of the inner hole of the sleeve (3) is provided with an internal thread matched with the external thread of the cylindrical structure, and the sleeve is inserted into the cylindrical structure and is fixedly connected with the cylindrical structure through the thread.

6. The femoral arthroplasty positioning device of claim 1, wherein: the middle part of the positioning rod (12) is provided with a semicircular groove (15) which extends along the axis of the positioning rod and is provided with openings at two ends, the positioning rod grooves of the left guide plate (1) and the right guide plate (2) are spliced to form a guide hole, and the diameter of the guide hole is identical to that of the Kirschner wire and is used for accommodating the Kirschner wire.

7. The femoral arthroplasty positioning device of claim 1, wherein: the tail end of the sleeve (3) is provided with a handle (31) which is of a star-shaped structure, and the handle is provided with a plurality of positioning holes (32) penetrating through the handle.

8. The femoral arthroplasty positioning device of claim 7, wherein: the device also comprises a guide sleeve (4), the outer diameter of the guide sleeve is the same as that of the positioning hole (32) and is inserted into the positioning hole, and the inner diameter of the guide sleeve is matched with the diameter of the Kirschner wire and is used for accommodating the Kirschner wire.