Adjustable triangular calcaneus distractor

Abstract

The utility model relates to the technical field of orthopedic surgical instruments, in particular to an adjustable triangular calcaneus distractor, which comprises a positioning seat, an adjusting screw is arranged in the positioning seat, a nut sleeve is mounted at one end, deviating from the positioning seat, of the adjusting screw in a threaded manner, and the nut sleeve is connected with the positioning seat. The internal threads on the inner side of the nut sleeve are distributed in a mirror image mode along the center line of the nut sleeve, and a positioning rod penetrates through the positioning base. The utility model solves the problems that the size of the calcaneus part of a patient is different, triangular calcaneus distractors with different sizes need to be selected for surgical installation at the present stage, and the size of the triangular calcaneus distractors needs to be customized to meet the use requirements of different patients, so that the surgical cost is increased, and the operation difficulty is reduced. And the economic pressure of the patient is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic surgical instruments, in particular to an adjustable triangular calcaneal distractor. Background Art

[0002] The triangular calcaneal distractor is a medical device used in foot surgery, mainly used to treat calcaneal fractures or other foot diseases. It helps restore the correct position and shape of the calcaneus and promotes wound healing through traction and fixation. Its characteristics are: 1. Precise positioning: The triangular calcaneal distractor can accurately control the movement of the calcaneus to ensure the accuracy of fracture reduction; 2. Stable fixation: Through the traction and fixation mechanism, the calcaneus can be effectively stabilized, the movement during the operation can be reduced, and it is conducive to the healing of fractures; 3. Reduce trauma: Compared with traditional surgical methods, the use of a triangular calcaneal distractor for surgery can reduce tissue damage and shorten the patient's recovery time; 4. Easy operation: The design is humanized and easy for doctors to operate. The calcaneus can be reduced and fixed in a short time. The triangular calcaneal distractor is mainly used in the following situations: 1. Calcaneus fracture: For the treatment of calcaneal fracture, the distractor can be used for effective reduction and fixation; 2. Correction of foot deformity: For certain foot deformities, such as flat feet, the triangular calcaneal distractor can also be used as a correction tool; 3. Foot and ankle surgery: During foot and ankle surgery, the distractor can be used to stabilize the foot and provide convenience for surgery.

[0003] The use of triangular calcaneal distractor provides an effective means for the treatment of calcaneal fractures and foot surgery. Through precise operation and stable fixation, it helps patients recover quickly. However, the correct operation method is particularly important. Due to the different sizes of the calcaneus of patients, triangular calcaneal distractors of different sizes need to be selected for surgical installation at this stage, which leads to the need to customize the size of the triangular calcaneal distractor to meet the needs of different patients. This leads to an increase in surgical costs and also increases financial pressure on patients. Therefore, it is necessary to propose an adjustable triangular calcaneal distractor to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an adjustable triangular calcaneal distractor, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable triangular calcaneal distractor, comprising a positioning seat, an adjusting screw is provided in the positioning seat, a nut sleeve is threadedly installed on the end of the adjusting screw away from the positioning seat, the internal thread on the inner side of the nut sleeve is mirror-distributed along the center line of the nut sleeve, and a positioning rod passes through the positioning seat.

[0006] Preferably, two limit grooves are provided below the front of the positioning seat, a through-type reserved hole is provided above the front of the positioning seat, screw holes are provided on both sides of the top of the positioning seat, and positioning bolts are installed in the inner threads of the screw holes, and the screw holes and the reserved holes are connected to each other, and a limit cover is fixedly installed on the front of the positioning seat.

[0007] Preferably, the bottoms of the two limiting grooves are opened and closed at a sixty-degree angle, and the adjusting screw is movably inserted in the limiting grooves.

[0008] Preferably, a screw hole is provided on the top of the limit cover, and the position of the screw hole on the limit cover matches the position of the screw hole on the positioning seat. The limit cover is fixedly installed on the front of the positioning seat by positioning bolts. A through hole is provided above the front of the limit cover, and the position of the through hole matches the position of the reserved hole.

[0009] Preferably, one end of the adjusting screw is provided with an external thread, and a limit block is welded and installed on the other end of the adjusting screw. The limit block is movably mounted in the limit groove, and the size of the limit block matches the size of the limit groove.

[0010] Preferably, the cross-sectional dimension of the nut sleeve is designed as a hexagonal structure, an observation window is provided on the front side of the nut sleeve, and scales are provided on the outer wall of the nut sleeve at the upper and lower ends of the observation window.

[0011] Preferably, the positioning rod passes through the reserved hole and the through hole on the limiting cover, and the positioning rod in the reserved hole is positioned with the positioning seat by a positioning bolt.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model provides an adjusting screw and movably installs the adjusting screw in a positioning seat, and at the same time, a nut sleeve is threadedly installed at the end of the adjusting screw away from the positioning seat, and the internal thread on the inner side of the nut sleeve is mirror-distributed along the center line of the nut sleeve, so that two adjusting screws can be threadedly installed in the nut sleeve at the same time, and the distance between the two adjusting screws threadedly installed with the nut sleeve can be changed by rotating the nut sleeve, thereby realizing the adjustment of the distance between the two positioning seats at both ends of the nut sleeve, thereby adjusting the side length of the equilateral triangle under the premise of keeping the angles between the three positioning seats at sixty degrees to each other, so that when operating, the effect of adjusting the size of the triangular calcaneal distractor for different patients can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 The structural diagram of the enlarged part in the middle;

[0016] Figure 3 This is a schematic diagram of the nut-sleeve connection structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the connection structure of the positioning seat of the utility model;

[0018] Figure 5 It is a schematic diagram of the installation position of the utility model.

[0019] In the figure: 1. positioning rod; 2. nut sleeve; 3. positioning seat; 4. adjusting screw; 5. positioning bolt; 6. limit cover; 7. limit block; 8. scale; 9. observation window; 10. reserved hole; 11. limit groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0021] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, an embodiment of the utility model is an adjustable triangular calcaneal distractor, including a positioning seat 3, two limiting grooves 11 are provided at the lower front of the positioning seat 3, the bottoms of the two limiting grooves 11 are opened and closed at 60 degrees, and the adjusting screw 4 is movably inserted in the limiting groove 11. A through-type reserved hole 10 is provided at the upper front of the positioning seat 3, screw holes are provided on both sides of the top of the positioning seat 3, and positioning bolts 5 are installed with inner threads of the screw holes, and the screw holes are connected with the reserved holes 10, and a limiting cover 6 is fixedly installed at the front of the positioning seat 3.

[0022] The top of the limit cover 6 is provided with a screw hole, and the position of the screw hole on the limit cover 6 matches the position of the screw hole on the positioning seat 3. The limit cover 6 is fixedly installed on the front of the positioning seat 3 by the positioning bolt 5. A through hole is provided above the front of the limit cover 6, and the position of the through hole matches the position of the reserved hole 10. A positioning rod 1 passes through the positioning seat 3. The positioning rod 1 passes through the reserved hole 10 and the through hole on the limit cover 6, and the positioning rod 1 in the reserved hole 10 is positioned with the positioning seat 3 by the positioning bolt 5. Example

[0023] like Figure 3As shown, another embodiment of the utility model is: an adjustable triangular calcaneal distractor, an adjusting screw 4 is provided in the positioning seat 3, one end of the adjusting screw 4 is provided with an external thread, and a limiting block 7 is welded and installed on the other end of the adjusting screw 4, the limiting block 7 is movably mounted in the limiting groove 11, and the size of the limiting block 7 matches the size of the limiting groove 11, the limiting block 7 is inserted in the limiting groove 11, and the limiting groove 11 is closed by the limiting cover 6, so that the adjusting screw 4 is fixedly installed in the positioning seat 3, and the opening and closing angle of the adjusting screw 4 in the current positioning seat 3 is fixed.

[0024] A nut sleeve 2 is threadedly installed on the end of the adjusting screw 4 facing away from the positioning seat 3. The internal thread on the inner side of the nut sleeve 2 is mirror-distributed along the center line of the nut sleeve 2. The cross-sectional size of the nut sleeve 2 is designed as a hexagonal structure. An observation window 9 is provided on the front of the nut sleeve 2. Scales 8 are provided on the outer walls of the nut sleeve 2 at the upper and lower ends of the observation window 9. The setting of the observation window 9 and the scale 8 can enable the operator to better understand the distance between the two adjusting screws 4 in the current nut sleeve 2.

[0025] When the utility model is used, the adjusting screw 4 is movably installed in the positioning seat 3, and the nut sleeve 2 is threadedly installed at the end of the adjusting screw 4 away from the positioning seat 3, and the internal thread of the nut sleeve 2 is mirrored along the center line of the nut sleeve 2, so that two adjusting screws 4 can be threadedly installed in the nut sleeve 2 at the same time, and the distance between the two adjusting screws 4 threadedly installed with the nut sleeve 2 can be changed by rotating the nut sleeve 2, thereby realizing the adjustment of the distance between the two positioning seats 3 at both ends of the nut sleeve 2, so that the three positioning seats 3 can be kept. The side length of the equilateral triangle is adjusted on the premise that the angles between the seats 3 are sixty degrees. In the specific operation, after the distance between the two adjusting screws 4 in the nut sleeve 2 is adjusted, the adjusting screw 4 is installed in the positioning seat 3 through the limit block 7, and an equilateral triangle is formed by the three positioning seats 3. At this time, the three positioning rods 1 can be passed through the patient's foot and inserted into the reserved hole 10, and the positioning rod 1 can be positioned by tightening the positioning bolt 5. After the positioning rods 1 are positioned on both sides of the patient's foot, the traction and fixation of the patient's foot can be achieved through the triangular calcaneal distractor.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An adjustable triangular calcaneal distractor, comprising a positioning seat (3), characterized in that: An adjusting screw (4) is provided in the positioning seat (3), and a nut sleeve (2) is threadedly mounted on one end of the adjusting screw (4) away from the positioning seat (3). The internal thread of the nut sleeve (2) is mirror-imaged along the center line of the nut sleeve (2). The cross-sectional dimension of the nut sleeve (2) is designed as a hexagonal structure. Two adjusting screws (4) can be threadedly mounted in the nut sleeve (2) at the same time. By rotating the nut sleeve (2), the distance between the two adjusting screws (4) on the opposite side of the nut sleeve (2) threadedly mounted can be changed. A positioning rod (1) passes through the positioning seat (3).

2. The adjustable triangular calcaneal distractor according to claim 1, characterized in that: Two limiting grooves (11) are provided at the lower front of the positioning seat (3), a through-type reserved hole (10) is provided at the upper front of the positioning seat (3), screw holes are provided at both sides of the top of the positioning seat (3), and positioning bolts (5) are installed in the inner threads of the screw holes, and the screw holes are connected to the reserved holes (10), and a limiting cover (6) is fixedly installed on the front of the positioning seat (3).

3. The adjustable triangular calcaneal distractor according to claim 2, characterized in that: The bottoms of the two limit grooves (11) are opened and closed at a sixty-degree angle, and the adjusting screw rod (4) is movably inserted into the limit groove (11).

4. The adjustable triangular calcaneal distractor according to claim 2, characterized in that: The limit cover (6) has a screw hole at the top, and the position of the screw hole on the limit cover (6) matches the position of the screw hole on the positioning seat (3). The limit cover (6) is fixedly mounted on the front of the positioning seat (3) by means of a positioning bolt (5). A through hole is provided above the front of the limit cover (6), and the position of the through hole matches the position of the reserved hole (10).

5. The adjustable triangular calcaneal distractor according to claim 1, characterized in that: One end of the adjusting screw rod (4) is provided with an external thread, and the other end of the adjusting screw rod (4) is welded with a limit block (7), the limit block (7) is movably mounted in the limit groove (11), and the size of the limit block (7) matches the size of the limit groove (11).

6. The adjustable triangular calcaneal distractor according to claim 1, characterized in that: An observation window (9) is provided on the front of the nut sleeve (2), and scales (8) are provided on the outer wall of the nut sleeve (2) at the upper and lower ends of the observation window (9).

7. The adjustable triangular calcaneal distractor according to claim 1, characterized in that: The positioning rod (1) passes through the reserved hole (10) and the through hole on the limiting cover (6), and the positioning rod (1) in the reserved hole (10) is positioned with the positioning seat (3) by means of a positioning bolt (5).

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