Trephine indicator

Abstract

The utility model provides a trephine indicator, and relates to the field of medical instruments. The trephine indicator comprises a shell, and a mounting hole is formed in the middle of the shell; the rotating shaft penetrates through the mounting hole and is rotatably mounted in the mounting hole, a first through hole is formed in the middle of the rotating shaft, a connecting column is fixedly mounted at the top of the rotating shaft, a second through hole is formed in the middle of the connecting column, and sawteeth are fixedly mounted at the bottom of the rotating shaft; the diameter of the cross section of the indicating rod is smaller than the aperture of the first through hole, the diameter of the cross section of the indicating rod is smaller than the aperture of the second through hole, and a tip is fixedly installed at the end of the indicating rod. The problem that in the prior art, after each time of ring cutting, a trephine is taken out, whether complete excision and separation are observed, the operation is repeated for many times, and a large amount of operation time needs to be spent for confirming whether the ring-cut zygopophysis is completely separated or not is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a trephine indicator. Background Art

[0002] During the arthrodesis of the zygapophysis using the surgical instrument trephine in spinal surgery, due to the limited local space, deep position, and inability to directly observe whether the arthrodesis of the zygapophysis is completely resected and separated, the current common situation is to take out the trephine after each arthrodesis to observe whether it is completely resected and separated, and repeat this process many times. This requires a large amount of surgical time to confirm whether the arthrodesis of the zygapophysis is completely separated. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the present disclosure is to provide a trephine indicator, which solves the problem that in the prior art, after each arthrodesis, the trephine is taken out to observe whether it is completely resected and separated, and this process is repeated many times, which requires a large amount of surgical time to confirm whether the arthrodesis of the zygapophysis is completely separated.

[0004] The purpose of the present disclosure can be achieved by the following technical solutions:

[0005] A trephine indicator, comprising:

[0006] A housing, in which an installation hole is provided in the middle;

[0007] A rotating shaft, which passes through the installation hole, and the rotating shaft is rotatably installed in the installation hole. A first through hole is provided in the middle of the rotating shaft. A connecting column is fixedly installed at the top of the rotating shaft. A second through hole is provided in the middle of the connecting column. A sawtooth is fixedly installed at the bottom of the rotating shaft; and an indicating rod, the cross-sectional diameter of the indicating rod is smaller than the aperture of the first through hole, the cross-sectional diameter of the indicating rod is smaller than the aperture of the second through hole, and a pointed head is fixedly installed at the end of the indicating rod.

[0008] The above technical solution, its principle and effect are:

[0009] Pass the pointed head through the second through hole and the first through hole in sequence, nail the pointed head into the zygapophysis, and the end of the indicating rod remains above the second through hole. Rotate the rotating shaft through the connecting column. After the sawtooth at the bottom of the rotating shaft completely cuts off the zygapophysis, the zygapophysis becomes loose, and the rotating shaft can drive the zygapophysis to rotate, and the zygapophysis thus drives the indicating rod to rotate, so as to judge whether it is completely resected, solving the problem that in the prior art, after each arthrodesis, the trephine is taken out to observe whether it is completely resected and separated, and this process is repeated many times, which requires a large amount of surgical time to confirm whether the arthrodesis of the zygapophysis is completely separated.

[0010] Preferably, a pointer is fixedly connected to the side surface of the end of the indicating rod on the side far from the pointed head.

[0011] Preferably, the surface of the outer shell is provided with scales, which are adapted to the pointer.

[0012] Preferably, a turntable is fixedly installed at the end of the indicating rod on the side away from the pointed end.

[0013] Preferably, a handle is fixedly installed on the surface of the turntable.

[0014] Preferably, at least one barbed thorn is fixedly connected to the surface of the pointed end.

[0015] Preferably, at least one rotating rod is fixedly installed on the side surface of the connecting column.

[0016] The explanations of the nouns, conjunctions or adjectives involved in the above technical solutions are as follows:

[0017] Sliding connection means that two objects are in contact but not fixed, and they can slide relative to each other;

[0018] Fixed connection means that the connecting parts cannot move relative to each other.

[0019] Advantages of the present disclosure:

[0020] The present utility model provides a trephine indicator, which solves the problem in the prior art that after each circumcision, the trephine is taken out to observe whether it is completely cut and separated, and so on repeatedly, which requires a lot of surgical time to confirm whether the articular process cut is completely separated. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of the trephine indicator of the present utility model;

[0022] Figure 2 It is a connection structure diagram of the outer shell and the rotating shaft of the present utility model;

[0023] Figure 3 It is a structure diagram of the outer shell of the present utility model;

[0024] Figure 4 It is a structure diagram of the rotating shaft of the present utility model;

[0025] Figure 5 It is a structure diagram of the indicating rod of the present utility model;

[0026] Figure 6 It is the present utility model Figure 5 Enlarged schematic diagram at position A.

[0027] Among them, 100 is the outer shell; 101 is the mounting hole; 110 is the scale; 200 is the rotating shaft; 201 is the first through hole; 210 is the sawtooth; 300 is the connecting column; 301 is the second through hole; 310 is the rotating rod; 400 is the indicating rod; 410 is the turntable; 420 is the handle; 430 is the pointed head; 440 is the barb; 450 is the pointer. Detailed implementation mode

[0028] Next, in combination with the drawings of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0029] Embodiment

[0030] According to the concept of the present application, an embodiment of a ring saw indicator that is easy to use will be described herein in combination with Figures 1 to 6 to describe an embodiment of a ring saw indicator that is easy to use. Specifically, the ring saw indicator is configured as a split structure, and it has three components, namely an outer shell 100, a rotating shaft 200, and an indicating rod 400. The ring saw indicator is used to confirm whether the articular process to be cut is completely separated.

[0031] Please refer to Figures 1 to 6 , a ring saw indicator, comprising:

[0032] An outer shell 100, with a mounting hole 101 opened in the middle of the outer shell 100;

[0033] A rotating shaft 200, the rotating shaft 200 passes through the mounting hole 101, and the rotating shaft 200 is rotatably installed in the mounting hole 101. A first through hole 201 is opened in the middle of the rotating shaft 200. A connecting column 300 is fixedly installed at the top of the rotating shaft 200. A second through hole 301 is opened in the middle of the connecting column 300. A sawtooth 210 is fixedly installed at the bottom of the rotating shaft 200; and

[0034] An indicating rod 400, the cross-sectional diameter of the indicating rod 400 is smaller than the aperture of the first through hole 201, the cross-sectional diameter of the indicating rod 400 is smaller than the aperture of the second through hole 301, and a pointed head 430 is fixedly installed at the end of the indicating rod 400.

[0035] The sawtooth 210 is the sharp tooth on the saw blade and is a cutting tool. In this application, the sawteeth 210 are arranged in a ring for circular cutting operations.

[0036] The pointed head 430 is similar to a triangular barb, and at the same time, a plurality of barbs 440 are arranged on the surface of the pointed head 430. Therefore, after the pointed head 430 is inserted into the articular process, it is not easy to be pulled out.

[0037] The pointed end 430 is successively passed through the second through-hole 301 and the first through-hole 201, and the pointed end 430 is nailed into the articular process. The end of the indicating rod 400 remains above the second through-hole 301. By rotating the rotating shaft 200 through the connecting column 300, after the serrations 210 at the bottom of the rotating shaft 200 completely cut off the articular process, the articular process becomes loose. The rotating shaft 200 can drive the articular process to rotate, and the articular process can drive the indicating rod 400 to rotate, so as to judge whether the resection is complete. After complete resection, by pulling up the entire trephine indicator, the resected articular process can be removed, solving the problem in the prior art that after each circumcision, the trephine needs to be taken out to observe whether the resection is complete and separated, and repeating this process many times requires a lot of surgical time to confirm whether the circumcised articular process is completely separated.

[0038] In order to facilitate judging whether the indicating rod 400 rotates, further, a pointer 450 is fixedly connected to the side surface of the end of the indicating rod 400 on the side far from the pointed end 430.

[0039] In order to cooperate with the use of the pointer 450, further, a scale 110 is arranged on the surface of the housing 100, and the scale 110 is adapted to the pointer 450.

[0040] In order to facilitate pressing the indicating rod 400, further, a turntable 410 is fixedly installed at the end of the indicating rod 400 on the side far from the pointed end 430.

[0041] In order to facilitate pulling the indicating rod 400, further, a handle 420 is fixedly installed on the surface of the turntable 410.

[0042] In order to prevent the pointed end 430 from detaching from the articular process, further, at least one barb 440 is fixedly connected to the surface of the pointed end 430.

[0043] In order to facilitate rotating the connecting column 300, further, at least one rotating rod 310 is fixedly installed on the side surface of the connecting column 300.

[0044] Simply describe the drawings in sequence according to the distribution method of the claims based on the attached drawing cases.

[0045] A trephine indicator, comprising:

[0046] A housing 100, with a mounting hole 101 opened in the middle of the housing 100; a scale 110 is arranged on the surface of the housing 100, and the scale 110 is adapted to the pointer 450;

[0047] The rotating shaft 200 passes through the mounting hole 101, and the rotating shaft 200 is rotatably mounted in the mounting hole 101. A first through hole 201 is provided in the middle of the rotating shaft 200. A connecting column 300 is fixedly mounted on the top of the rotating shaft 200. A second through hole 301 is provided in the middle of the connecting column 300. A sawtooth 210 is fixedly mounted on the bottom of the rotating shaft 200. At least one rotating rod 310 is fixedly mounted on the side surface of the connecting column 300;

[0048] The indicating rod 400, the cross-sectional diameter of the indicating rod 400 is smaller than the aperture of the first through hole 201, the cross-sectional diameter of the indicating rod 400 is smaller than the aperture of the second through hole 301. A pointed head 430 is fixedly mounted on the end of the indicating rod 400; A pointer 450 is fixedly connected to the side surface of the end of the indicating rod 400 on the side far from the pointed head 430; A turntable 410 is fixedly mounted on the end of the indicating rod 400 on the side far from the pointed head 430; A handle 420 is fixedly mounted on the surface of the turntable 410; At least one barb 440 is fixedly connected to the surface of the pointed head 430.

[0049] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. A ring saw indicator, characterized in that, Comprising: A housing (100), in the middle of which there is an installation hole (101); A rotating shaft (200), which passes through the installation hole (101), and the rotating shaft (200) is rotatably installed in the installation hole (101). A first through hole (201) is provided in the middle of the rotating shaft (200). A connecting column (300) is fixedly installed at the top of the rotating shaft (200). A second through hole (301) is provided in the middle of the connecting column (300). A sawtooth (210) is fixedly installed at the bottom of the rotating shaft (200); and An indicating rod (400), the cross-sectional diameter of the indicating rod (400) is smaller than the aperture of the first through hole (201), the cross-sectional diameter of the indicating rod (400) is smaller than the aperture of the second through hole (301), and a pointed head (430) is fixedly installed at the end of the indicating rod (400).

2. The ring saw indicator according to claim 1, characterized in that: A pointer (450) is fixedly connected to the side surface of the end of the indicating rod (400) on the side away from the pointed head (430).

3. The ring saw indicator according to claim 2, characterized in that: A scale (110) is provided on the surface of the housing (100), and the scale (110) is adapted to the pointer (450).

4. The ring saw indicator according to claim 3, characterized in that: A turntable (410) is fixedly installed at the end of the indicating rod (400) on the side away from the pointed head (430).

5. The ring saw indicator according to claim 4, characterized in that: A handle (420) is fixedly installed on the surface of the turntable (410).

6. The ring saw indicator according to claim 5, characterized in that: At least one barb (440) is fixedly connected to the surface of the pointed head (430).

7. The ring saw indicator according to claim 1, characterized in that: At least one rotating rod (310) is fixedly installed on the side surface of the connecting column (300).

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