Detachable calcaneus traction guider

Abstract

The utility model discloses a detachable calcaneus traction guider which comprises an installation mechanism, a first guide mechanism and a second guide mechanism. The first guide mechanism is detachably arranged relative to the mounting mechanism, a bone traction needle can be inserted into the first guide mechanism, a second guide mechanism is inserted into the bottom of the mounting mechanism, and the end part of the second guide mechanism corresponds to the position of the first guide mechanism; and the first guide mechanism and the second guide mechanism are used for double-position guide of the bone traction needle. By means of the arrangement mode that the first guide mechanism and the second guide mechanism are matched with each other, accurate positioning of a needle inlet point and a needle outlet point of the calcaneus traction needle can be guaranteed conveniently, and accuracy and stability of calcaneus traction operation are improved. In addition, the first guide mechanism is designed in a detachable mode, can be independently sterilized and disinfected, is economical and convenient to use, guarantees the sterile state of the bone traction needle in the bone traction operation process, and reduces the risk of needle passage infection.

Description

Technical Field

[0001] The utility model relates to the field of guides, in particular to a detachable calcaneal traction guide. Background Art

[0002] Bone traction refers to the use of a bone traction needle to penetrate the bone, so that the traction force directly passes through the bone to reach the fracture / injury site, thereby achieving the effect of reduction, fixation and rest. Bone traction can withstand a large traction weight, overcome muscle tension, and correct deformities caused by fractures and joint dislocations. Among them, calcaneal traction is suitable for diseases such as tibial condyle fractures, tibia and fibula fractures, ankle comminuted fractures, knee flexion contractures, etc., and is widely used in clinical practice.

[0003] When performing calcaneal traction, the bone traction needle needs to pass through the calcaneus, and for tibia and fibula fractures, the needle needs to be at an angle of 15° with the ankle joint surface, that is, the needle should be inserted low and removed high, so as to restore the normal physiological curvature of the tibia. Therefore, traditional manual operation has certain requirements on the physician's clinical experience and hand feel. When the position and angle of the needle insertion point are inaccurate, the position and angle of the needle exit point are prone to deviation. On the one hand, it may damage local structures (ankle canal, sural nerve, lower end of fibula, etc.), and on the other hand, it is difficult to ensure the effectiveness of calcaneal traction, affecting the traction effect. In addition, calcaneal traction is an invasive operation, and the sterility of the bone traction needle needs to be ensured during the operation. However, the traction guides currently on the market are all one-piece designs, which cannot guarantee sterile operation, and are prone to infection of the needle tract, affecting the treatment of the disease and increasing the burden on patients. Utility Model Content

[0004] The purpose of the utility model is to provide a detachable calcaneal traction guide to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a detachable calcaneal traction guide, comprising:

[0006] A mounting mechanism, wherein a first guide mechanism is clamped on the top of the mounting mechanism;

[0007] The first guide mechanism is detachably arranged relative to the mounting mechanism, a bone traction needle can be inserted into the interior of the first guide mechanism, a second guide mechanism is inserted into the bottom of the mounting mechanism, an end of the second guide mechanism corresponds to the position of the first guide mechanism, and the first guide mechanism and the second guide mechanism are used for dual-position guidance of the bone traction needle.

[0008] Preferably, the mounting mechanism comprises:

[0009] A handle frame, wherein a groove is formed on the top of the handle frame;

[0010] A cover plate, the cover plate being fitted into the interior of the groove;

[0011] A limiting hoop, wherein the limiting hoop is connected to the top of the handle frame and the cover plate respectively, and the limiting hoop is symmetrically arranged, and the first guide mechanism is clamped on the inner side of the limiting hoop;

[0012] A hinge is connected between the limiting hoops, and the limiting hoops are hinged and rotated through the hinge.

[0013] Preferably, the mounting mechanism further comprises:

[0014] A first locking screw, wherein the first locking screw is slidably interpenetratingly connected to the cover plate, and the first locking screw is threadably interpenetratingly connected to the handle frame;

[0015] A second locking screw, wherein the second locking screw is threadably inserted and connected to the bottom of the mounting mechanism, and an end of the second locking screw is pressed and fitted with an outer surface of the second guide mechanism.

[0016] Preferably, the first guiding mechanism comprises:

[0017] An installation sleeve, wherein the installation sleeve is clamped and fitted on the inner side of the limiting hoop;

[0018] A guide sleeve is connected to one end of the mounting sleeve and is arranged in a conical shape.

[0019] Preferably, the first guiding mechanism further comprises:

[0020] A limiting head is connected to the other end of the mounting sleeve, and a diameter of the limiting head is larger than an inner diameter of the limiting hoop.

[0021] Preferably, the second guiding mechanism comprises:

[0022] An arc-shaped guide arm, wherein the arc-shaped guide arm is arranged in an arc shape relative to the mounting mechanism;

[0023] The aiming ring is connected to one end of the arc-shaped guide arm, and the inner cavity of the aiming ring corresponds to the end of the guide sleeve.

[0024] Preferably, the second guiding mechanism further comprises:

[0025] A horizontal interpenetrating arm is connected to the other end of the arc-shaped guide arm, and the horizontal interpenetrating arm is horizontally slidably interpenetratingly connected relative to the bottom of the handle frame.

[0026] Technical effects and advantages of the utility model:

[0027] The utility model utilizes a setting mode in which the first guide mechanism and the second guide mechanism cooperate with each other. The first guide mechanism and the second guide mechanism are between the working area, and the calcaneus is clamped between the first guide mechanism and the aiming circle. The guide sleeve and the aiming circle are respectively located on the inner and outer sides of the calcaneus, so as to facilitate the positioning of both ends of the entry point and the exit point of the bone traction needle, improve the accuracy and stability of the operation, avoid damage to the surrounding structure, and obtain a good traction effect. The first guide mechanism of the utility model is a detachable design, and the first guide mechanism can be sterilized separately, avoiding the inconvenience caused by the overall sterilization of the guide, which is more economical and convenient, and can ensure the sterile state of the bone traction needle, reduce the occurrence of complications such as needle tract infection, reduce the operation risk, and ensure the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0029] Figure 2 This is a structural schematic diagram of the first locking screw of the utility model.

[0030] Figure 3 It is a structural schematic diagram of the second guide mechanism of the utility model.

[0031] In the figure: 1. mounting mechanism; 11. handle frame; 12. cover plate; 13. limit hoop; 14. hinge; 15. first locking screw; 16. second locking screw; 2. first guide mechanism; 21. mounting sleeve; 22. guide sleeve; 23. limit head; 3. bone traction needle; 4. second guide mechanism; 41. arc guide arm; 42. aiming circle; 43. horizontal insertion arm. DETAILED DESCRIPTION

[0032] 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.

[0033] The utility model provides Figure 1-3The detachable calcaneal traction guide shown in the figure comprises: a mounting mechanism 1, a first guide mechanism 2 is clamped on the top of the mounting mechanism 1; the first guide mechanism 2 is detachably arranged relative to the mounting mechanism 1, a bone traction needle 3 can be inserted inside the first guide mechanism 2, the bone traction needle 3 is disposable and can be replaced, a second guide mechanism 4 is inserted at the bottom of the mounting mechanism 1, an end of the second guide mechanism 4 corresponds to the position of the first guide mechanism 2, the first guide mechanism 2 and the second guide mechanism 4 are used for double-position guidance of the bone traction needle 3, the first guide mechanism 2 and the second guide mechanism 4 are between the working area, the calcaneal is clamped between the first guide mechanism 2 and the aiming circle 42, the guide sleeve 22 and the aiming circle 42 are respectively located on the inner and outer sides of the calcaneal, so as to facilitate the positioning of the two ends of the entry point and the exit point of the bone traction needle 3, so as to facilitate the positioning of the bone traction needle 3 when passing through the calcaneal, improve the accuracy and stability of the operation, accurately position the exit point and the entry point, so that the insertion position and angle of the bone traction needle 3 are more accurate, and the traction effect is better.

[0034] Among them, the installation mechanism 1 includes: a handle frame 11, a groove is opened on the top of the handle frame 11; a cover plate 12, the cover plate 12 is matched with the inside of the groove; a limiting hoop 13, the limiting hoop 13 is respectively connected to the top of the handle frame 11 and the cover plate 12, and the limiting hoop 13 is symmetrically arranged, and the first guide mechanism 2 is clamped on the inner side of the limiting hoop 13; a hinge 14, the hinge 14 is connected between the limiting hoops 13, and the limiting hoop 13 is hinged and rotated through the hinge 14. The mounting mechanism 1 further comprises: a first locking screw 15, which is slidably inserted and connected with the cover plate 12, and the first locking screw 15 is threadedly inserted and connected with the handle frame 11; a second locking screw 16, which is threadedly inserted and connected to the bottom of the mounting mechanism 1, and the end of the second locking screw 16 is pressed and fitted with the outer surface of the second guide mechanism 4. The setting of the handle frame 11 is convenient for medical workers to grasp, and the connection between the limit hoop 13 and the handle frame 11 and the cover plate 12 is formed to form a clamping structure, and the mounting sleeve 21 is clamped inside the limit hoop 13 to achieve relative installation and fixation between the first guide mechanism 2 and the mounting mechanism 1, and the hinge 14 is convenient for making the two limit The limiting hoops 13 can be relatively rotated to open or close, so as to install or disassemble the mounting sleeve 21. The first locking screw 15 and the handle frame 11 are threadedly inserted, so that when the first locking screw 15 is threadedly rotated, the first locking screw 15 will squeeze the cover plate 12, so that the two limiting hoops 13 can move relative to each other and clamp the mounting sleeve 21. By relatively opening the limiting hoops 13, the disassembly of the first guide mechanism 2 is facilitated, which is convenient for disinfection and reduces the disinfection cost. By tightening the thread of the second locking screw 16, the end of the second locking screw 16 can be against the outer surface of the horizontal insertion arm 43, so as to squeeze and fix the adjusted position of the horizontal insertion arm 43.

[0035] Specifically, the first guide mechanism 2 includes: a mounting sleeve 21, which is clamped and fitted on the inner side of the limiting hoop 13; and a guide sleeve 22, which is connected to one end of the mounting sleeve 21 and is set in a conical shape. The first guide mechanism 2 also includes: a limiting head 23, which is connected to the other end of the mounting sleeve 21, and the diameter of the limiting head 23 is larger than the inner diameter of the limiting hoop 13. The mounting sleeve 21 and the guiding sleeve 22 cooperate to guide the bone traction needle 3, and can also wrap and protect the bone traction needle 3, so as to ensure the sterility of the bone traction needle 3 during the traction operation, reduce the risk of nail tract infection, and facilitate the insertion between the mounting sleeve 21 and the limiting hoop 13 through the limiting head 23 to prevent the mounting sleeve 21 from excessive insertion. The mounting sleeve 21, the guiding sleeve 22 and the limiting head 23 are integrated.

[0036] Specifically, the second guide mechanism 4 includes: an arc-shaped guide arm 41, which is arranged in an arc shape relative to the mounting mechanism 1; an aiming circle 42, which is connected to one end of the arc-shaped guide arm 41, and the inner cavity of the aiming circle 42 corresponds to the end of the guide sleeve 22. The second guide mechanism 4 also includes: a horizontal insertion arm 43, which is connected to the other end of the arc-shaped guide arm 41, and the horizontal insertion arm 43 is horizontally slidably inserted relative to the bottom of the handle frame 11. Through the sliding insertion between the horizontal insertion arm 43 and the handle frame 11, the relative position between the aiming circle 42 and the guide sleeve 22 can be adjusted to adapt to different sizes of calcaneus. The aiming circle 42 is used to determine the needle position so that the bone traction needle 3 can be accurately inserted. The arc-shaped guide arm 41, the aiming circle 42 and the horizontal insertion arm 43 are integrated.

[0037] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable calcaneal traction guide, comprising: A mounting mechanism (1), wherein a first guide mechanism (2) is clamped on the top of the mounting mechanism (1); The invention is characterized in that: the first guide mechanism (2) is detachably arranged relative to the mounting mechanism (1); a bone traction needle (3) is inserted into the interior of the first guide mechanism (2); a second guide mechanism (4) is inserted into the bottom of the mounting mechanism (1); the end of the second guide mechanism (4) corresponds to the position of the first guide mechanism (2); the first guide mechanism (2) and the second guide mechanism (4) are used for dual-position guidance of the bone traction needle (3).

2. A detachable calcaneal traction guide according to claim 1, characterized in that: The mounting mechanism (1) comprises: A handle frame (11), wherein a groove is formed on the top of the handle frame (11); A cover plate (12), the cover plate (12) being fitted into the interior of the groove; A limiting hoop (13), the limiting hoop (13) being connected to the top of the handle frame (11) and the cover plate (12) respectively, and the limiting hoop (13) being symmetrically arranged, and the first guide mechanism (2) being clamped on the inner side of the limiting hoop (13); A hinge (14), wherein the hinge (14) is connected between the limiting hoops (13), and the limiting hoops (13) are hingedly rotated via the hinge (14).

3. A detachable calcaneal traction guide according to claim 2, characterized in that: The mounting mechanism (1) further comprises: A first locking screw (15), the first locking screw (15) is slidably interpenetratingly connected to the cover plate (12), and the first locking screw (15) is threadedly interpenetratingly connected to the handle frame (11); A second locking screw (16), wherein the second locking screw (16) is threadedly inserted into the bottom of the mounting mechanism (1), and the end of the second locking screw (16) is pressed and fitted with the outer surface of the second guide mechanism (4).

4. The detachable calcaneal traction guide according to claim 1, characterized in that: The first guiding mechanism (2) comprises: An installation sleeve (21), wherein the installation sleeve (21) is clamped and fitted on the inner side of the limiting hoop (13); A guide sleeve (22), wherein the guide sleeve (22) is connected to one end of the mounting sleeve (21), and the guide sleeve (22) is arranged in a conical shape.

5. The detachable calcaneal traction guide according to claim 4, characterized in that: The first guiding mechanism (2) further comprises: A limiting head (23), the limiting head (23) being connected to the other end of the mounting sleeve (21), and the diameter of the limiting head (23) being greater than the inner diameter of the limiting hoop (13).

6. The detachable calcaneal traction guide according to claim 1, characterized in that: The second guiding mechanism (4) comprises: An arc-shaped guide arm (41), wherein the arc-shaped guide arm (41) is arranged in an arc shape relative to the mounting mechanism (1); An aiming ring (42) is connected to one end of the arc-shaped guide arm (41), and an inner cavity of the aiming ring (42) corresponds to an end of the guide sleeve (22).

7. The detachable calcaneal traction guide according to claim 6, characterized in that: The second guiding mechanism (4) further comprises: A horizontal interpenetrating arm (43) is connected to the other end of the arc-shaped guide arm (41), and the horizontal interpenetrating arm (43) is horizontally slidably interpenetratingly connected relative to the bottom of the handle frame (11).

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