Screw taking-out device of bone fracture plate for orthopedics department

Abstract

The screw taking-out device of the bone fracture plate for the orthopedics department comprises a positioning rod, a human body soft tissue spreader, a positioning cylinder and a screwdriver, when a screw of the bone fracture plate for the orthopedics department is taken out, the positioning rod is firstly inserted into the head of the screw of a single-hole bone fracture plate, or the positioning rod is inserted into the head of the screw of a two-hole locking bone fracture plate, and then the screw of the bone fracture plate for the orthopedics department is taken out. Or the positioning rod is inserted into the screw hole, without the screw, of the two-hole locking bone fracture plate, then the human body soft tissue spreader is nested on the positioning rod and spreads the human body soft tissue around the positioning rod to expose the screw, and then the positioning cylinder is nested on the soft human body tissue spreader, so that the screw is right opposite to the positioning cylinder; then the positioning rod and the human tissue spreader are taken out of the sleeve, and finally a screwdriver is inserted into the positioning cylinder to detach the screw, so that the problem that the screw is difficult to position and take out quickly in an orthopedic operation can be solved, the wound of a patient can be reduced, the operation time can be shortened, and the pain of the patient can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a screw removal device for an orthopedic bone plate. Background Art

[0002] Bone plate and screw fixation is currently the most common way to treat bone fractures. It is widely used in clinical practice. After the fracture heals, the bone plate and screws need to be removed in most cases. In the process of removing the bone plate and screws, it is often difficult to accurately locate the screws due to the interference of the muscle tissue attached to the bone. In the process of continuously searching for the positioning screws, it is easy to accidentally injure the muscle tissue and skin around the damaged bone of the patient, increase the wound, and increase the operation time, which ultimately causes greater pain to the patient. However, there is currently a lack of screw removal devices that can quickly and accurately locate the screws. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a screw removal device for an orthopedic bone plate, which can quickly and accurately locate and remove the screws during orthopedic surgery, reduce the patient's wounds, shorten the operation time, and reduce the patient's pain.

[0004] The technical solution of the utility model is: a screw removal device for an orthopedic bone plate, comprising a positioning rod, a human soft tissue spreader, a positioning tube and a screwdriver, wherein the positioning rod is cylindrical, the end of one end of the positioning rod used for positioning the screw is a cone, the tip of the cone is a spherical surface, the diameter of the cross section of the positioning rod is smaller than the diameter of the cross section of the human soft tissue spreader, and the length of the positioning tube is smaller than the length of the shank of the screwdriver;

[0005] Specifically, the positioning cylinder is a cylindrical single sleeve, and the cross-sectional diameter of the positioning cylinder is larger than the cross-sectional diameter of the human soft tissue spreader and the cross-sectional diameter of the screwdriver. When removing the screw of the orthopedic bone plate, the positioning rod is first inserted into the screw head of the single-hole bone plate or the two-hole locking bone plate, and then the human soft tissue spreader is nested on the positioning rod and the human soft tissue around the positioning rod is spread to expose the screw, and then the positioning cylinder is nested on the soft human tissue spreader so that the screw is aligned with the positioning cylinder, and then the positioning rod and the human tissue spreader are taken out of the positioning cylinder, and finally the screwdriver is inserted into the positioning cylinder to remove the screw;

[0006] Specifically, the positioning tube includes a first sleeve and a second sleeve, the first sleeve and the second sleeve are integrally formed and arranged in parallel, the first sleeve and the second sleeve are both cylindrical, and the diameters of the cross sections of the first sleeve and the second sleeve are both larger than the diameters of the cross sections of the human soft tissue spreader and the diameters of the cross sections of the screwdriver. When removing the screws of the orthopedic plate, first insert the positioning rod into the screw hole of the two-hole locking plate where the screws are not installed, then nest the human soft tissue spreader on the positioning rod and spread the human soft tissue around the positioning rod to expose the screw next to the screw hole, then nest the first sleeve on the soft human tissue spreader so that the second sleeve is opposite to the screw, and finally insert the screwdriver into the second sleeve to remove the screw.

[0007] Specifically, it also includes a human soft tissue separation rod, which is a solid cylinder. The length of the human soft tissue separation rod is greater than the length of the second sleeve, and the diameter of the cross section of the human soft tissue separation rod is smaller than the diameter of the cross section of the second sleeve. When removing the screws of the orthopedic plate, first insert the positioning rod into the screw hole of the two-hole locking plate where the screws are not installed, then nest the human soft tissue spreader on the positioning rod and spread the human soft tissue around the positioning rod to expose the screw next to the screw hole, then nest the first sleeve on the soft human tissue spreader so that the second sleeve is opposite to the screw, then insert the human soft tissue separation rod into the second sleeve to squeeze out the human soft tissue, then take the human soft tissue separation rod out of the second sleeve, and finally insert the screwdriver into the second sleeve to remove the screw.

[0008] Specifically, the length of the sleeve is shorter than the length of the positioning rod and the human tissue spreader.

[0009] Specifically, the sleeve is a transparent piece.

[0010] Specifically, the screwdriver is an electric screwdriver or a manual screwdriver for orthopedic surgery.

[0011] The screw removal device for an orthopedic bone plate provided by the embodiment of the utility model first uses a positioning rod to accurately locate the position of the screw or the screw hole, then uses a human soft tissue spreader to eliminate the interference of human soft tissue, then uses a positioning tube to position the screw, and then uses a screwdriver to remove the screw. The problem that the screw is difficult to quickly position in orthopedic surgery can be solved, which can reduce the patient's wound, shorten the operation time, and reduce the patient's pain. At the same time, when the screwdriver is inserted into the positioning tube to remove the screw, the barrier effect of the positioning tube can also prevent the screw debris from splashing onto the surrounding human tissue during the screw removal process, which is convenient for cleaning the screw debris during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic diagram of a screw removal device for an orthopedic bone plate provided by an embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of another screw removal device for an orthopedic bone plate provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] like Figure 1 As shown, an orthopedic plate screw removal device provided by an embodiment of the utility model comprises a positioning rod 1, a human soft tissue spreader 2, a positioning tube 3 and a screwdriver (not shown). The positioning rod 1 is cylindrical, and the end of one end of the positioning rod 1 used for positioning the screw is a cone, and the tip of the cone is a spherical surface. The diameter of the cross section of the positioning rod 1 is smaller than the diameter of the cross section of the human soft tissue spreader 2, and the length of the positioning tube 3 is smaller than the length of the shank of the screwdriver (not shown). When removing the screw of the orthopedic plate, the positioning rod 1 is first used to locate the position of the screw or the screw hole. The screw is positioned, and then the human soft tissue spreader 2 is used to eliminate the interference of the human soft tissue. Then the positioning tube 3 is used to position the screw, and then the screw is taken out with a screwdriver (not shown). This can solve the problem of the difficulty in quickly positioning the screw in orthopedic surgery, reduce the patient's wound, shorten the operation time, and reduce the patient's pain. At the same time, when the screwdriver (not shown) is inserted into the positioning tube 3 to remove the screw, the blocking effect of the positioning tube 3 can also prevent the screw debris from splashing onto the surrounding human tissue during the screw removal process, which is convenient for cleaning the screw debris during surgery.

[0017] like Figure 1As shown, specifically, the positioning tube 3 is a cylindrical single sleeve, and the cross-sectional diameter of the positioning tube 3 is larger than the cross-sectional diameter of the human soft tissue spreader 2 and the cross-sectional diameter of the screwdriver (not shown). When removing the screw of the orthopedic plate, first insert the positioning rod 1 into the screw head of the single-hole plate or the two-hole locking plate, then nest the human soft tissue spreader 2 on the positioning rod 1 and spread the human soft tissue around the positioning rod 1 to expose the screw, and then nest the positioning tube 3 on the soft human tissue spreader 2 so that the screw is opposite to the positioning tube 3, then take the positioning rod 1 and the human tissue spreader 2 out of the positioning tube 3, and finally insert the screwdriver (not shown) into the positioning tube 3 to remove the screw. In this way, the positioning rod 1 can be used to find the screw head of the single-hole plate or the two-hole locking plate, so as to achieve rapid positioning and removal of the screw, shorten the operation time, and reduce the patient's pain.

[0018] like Figure 2 As shown, specifically, the positioning cylinder 3 includes a first sleeve 31 and a second sleeve 32, the first sleeve 31 and the second sleeve 32 are integrally formed and arranged in parallel, the first sleeve 31 and the second sleeve 32 are both cylindrical, and the diameters of the cross sections of the first sleeve 31 and the second sleeve 32 are both larger than the diameters of the cross sections of the human soft tissue spreader 2 and the diameters of the cross sections of the screwdriver (not shown). When removing the screws of the orthopedic bone plate, first insert the positioning rod 1 into the screw holes of the two-hole locking bone plate where the screws are not installed, and then The human soft tissue spreader 2 is nested on the positioning rod 1 and the human soft tissue around the positioning rod 1 is spread to expose the screw next to the screw hole, and then the first sleeve 31 is nested on the soft human tissue spreader 2, so that the second sleeve 32 is opposite to the screw, and finally the screwdriver is inserted into the second sleeve 32 to remove the screw. In this way, the screw next to the screw hole can be quickly positioned and removed by using the positioning rod 1 to find the screw hole of the two-hole locking bone plate where the screw is not installed, thereby shortening the operation time and reducing the patient's pain.

[0019] like Figure 2As shown, specifically, it also includes a human soft tissue separation rod 4, which is a solid cylindrical shape. The length of the human soft tissue separation rod 4 is greater than the length of the second sleeve 32, and the diameter of the cross section of the human soft tissue separation rod 4 is smaller than the diameter of the cross section of the second sleeve 32. When removing the screw of the orthopedic bone plate, first insert the positioning rod 1 into the screw hole of the two-hole locking bone plate where the screw is not installed, then nest the human soft tissue spreader 2 on the positioning rod 1 and spread the human soft tissue around the positioning rod 1 to expose the screw next to the screw hole, and then Then, the first sleeve 31 is nested on the soft human tissue spreader 2 so that the second sleeve 32 is opposite to the screw, and then the human soft tissue separation rod 4 is inserted into the second sleeve 32 to squeeze out the human soft tissue, and then the human soft tissue separation rod 4 is taken out from the second sleeve 32, and finally a screwdriver (not shown) is inserted into the second sleeve 32 to remove the screw. In this way, the human soft tissue in the second sleeve 32 is squeezed out by the human soft tissue separation rod 4, which makes it easier to insert the screwdriver to remove the screw, and also reduces the damage to the human soft tissue when inserting the screwdriver.

[0020] like Figure 1 , 2 As shown, specifically, the length of the positioning tube 3 is smaller than the lengths of the positioning rod 1 and the human tissue spreader 2 , so that it is convenient to take out the positioning rod 1 and the human tissue spreader 2 from the positioning tube 3 .

[0021] like Figure 1 , 2 As shown, specifically, the positioning tube 3 is a transparent piece, which makes it easy to observe the surrounding human soft tissue at any time when removing the screw.

[0022] Specifically, the screwdriver (not shown) is an electric screwdriver or a manual screwdriver for orthopedic surgery, which is suitable for surgical needs in different situations.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A screw removal device for an orthopedic bone plate, characterized in that: The invention comprises a positioning rod (1), a human soft tissue spreader (2), a positioning tube (3) and a screwdriver, wherein the positioning rod (1) is cylindrical, the end of one end of the positioning rod (1) used for positioning a screw is a cone, the tip of the cone is a spherical surface, the diameter of the cross section of the positioning rod (1) is smaller than the diameter of the cross section of the human soft tissue spreader (2), and the length of the positioning tube (3) is smaller than the length of the screwdriver shaft.

2. The screw removal device for an orthopedic bone plate according to claim 1, characterized in that: The positioning cylinder (3) is a cylindrical single sleeve, and the cross-sectional diameter of the positioning cylinder (3) is larger than the cross-sectional diameter of the human soft tissue spreader (2) and the cross-sectional diameter of the screwdriver.

3. The screw removal device for an orthopedic bone plate according to claim 1, characterized in that: The positioning cylinder (3) comprises a first sleeve (31) and a second sleeve (32); the first sleeve (31) and the second sleeve (32) are integrally formed and arranged in parallel; the first sleeve (31) and the second sleeve (32) are both cylindrical; and the diameters of the cross sections of the first sleeve (31) and the second sleeve (32) are both larger than the diameters of the cross sections of the human soft tissue spreader (2) and the diameters of the cross sections of the screwdriver.

4. The screw removal device for an orthopedic bone plate according to claim 3, characterized in that: It also comprises a human soft tissue separation rod (4), which is a solid cylinder, the length of which is greater than the length of the second sleeve (32), and the diameter of the cross section of which is smaller than the diameter of the cross section of the second sleeve (32).

5. The screw removal device for an orthopedic bone plate according to claim 1, characterized in that: The length of the positioning cylinder (3) is shorter than the length of the positioning rod (1) and the human tissue spreader (2).

6. The screw removal device for an orthopedic bone plate according to claim 1, characterized in that: The positioning cylinder (3) is a transparent piece.

7. The screw removal device for an orthopedic bone plate according to claim 1, characterized in that: The screwdriver is an electric screwdriver or a manual screwdriver for orthopedic surgery.

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