Medical wrench

Abstract

The utility model relates to a medical wrench. The medical wrench includes: an operation section configured to be operated by a user; an engagement section configured for engagement with a surgical member to be screwed; the two ends of the middle part section are connected to the operation part section and the joint part section respectively; wherein the operation section is provided with a cavity. According to the medical wrench, the cavity is formed in the operation section, the weight of the medical wrench can be reduced through the cavity, and a user can conveniently carry the medical wrench and use the medical wrench in the operation process.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and in particular to a medical wrench. Background Art

[0002] This section provides background information related to the present invention which does not necessarily constitute prior art.

[0003] Medical wrenches are surgical instruments frequently used in surgical operations. For example, in orthopedic surgery, medical wrenches can be used to remove and install orthopedic implants. Existing medical wrenches are usually made of metal materials such as stainless steel, which are heavy and inconvenient for medical staff to use, especially when medical staff need to carry the medical wrench (for example, put the medical wrench in a mobile surgical tool box) to perform outdoor first aid. Utility Model Content

[0004] The purpose of the utility model is to solve one or more of the above-mentioned technical problems.

[0005] In particular, an object of the present invention is to provide a medical wrench that can reduce weight.

[0006] The utility model provides a medical wrench, which comprises: an operating section, which is configured to be operated by a user; a coupling section, which is configured to be coupled with a surgical piece to be screwed; and an intermediate section, wherein both ends of the intermediate section are respectively connected to the operating section and the coupling section; wherein the operating section is provided with a cavity.

[0007] According to the utility model, a cavity is arranged in the operating section of the medical wrench, and the cavity can reduce the weight of the medical wrench, making it convenient for the user to carry and use the medical wrench during surgery.

[0008] Optionally, the middle section and the joint section extend in the same direction, and the operating section extends perpendicularly to the middle section and the joint section. In this way, the user can save effort when operating the operating section.

[0009] Optionally, the cavity is open to the outside. The cavity being open to the outside can facilitate the formation of the cavity in the operating section.

[0010] Optionally, the operating section includes: a grip portion configured to be gripped by a user, the grip portion including a first side wall and a first cavity surrounded by the first side wall; and a connecting portion connected between the grip portion and the middle section, the connecting portion including first longitudinal ribs and second longitudinal ribs staggered with each other and a plurality of first transverse ribs intersecting with the first longitudinal ribs and the second longitudinal ribs, the plurality of first transverse ribs being arranged at intervals to form a second cavity between adjacent first transverse ribs; the cavity including the first cavity and the second cavity. The staggered first longitudinal ribs and second longitudinal ribs and the plurality of first transverse ribs arranged at intervals of the connecting portion can provide sufficient strength and rigidity to the connecting portion and thus the medical wrench while providing a second cavity to reduce weight.

[0011] Optionally, a reinforcing rib is provided in the first cavity, so that the strength of the medical wrench can be further improved.

[0012] Optionally, the reinforcing ribs include additional longitudinal ribs and additional transverse ribs that are alternately arranged, and both ends of the additional longitudinal ribs and both ends of the additional transverse ribs are connected to the first side wall.

[0013] Optionally, the additional longitudinal ribs and the additional transverse ribs intersect to form a "cross". In this way, uniform and sufficient strength and rigidity can be provided to the grip portion and thus to the medical wrench.

[0014] Optionally, the first longitudinal ribs and the second longitudinal ribs intersect to form a "cross". In this way, the first longitudinal ribs, the second longitudinal ribs and the plurality of first transverse ribs can provide uniform and sufficient strength and rigidity for the connecting portion and thus for the medical wrench.

[0015] Optionally, the middle section includes a second side wall and a middle cavity surrounded by the second side wall, and the second side wall is provided with a plurality of holes penetrating the second side wall. On the one hand, the holes penetrating the second side wall can further reduce the weight of the medical wrench, making it easier for the user to carry and use the medical wrench during surgery. On the other hand, the holes penetrating the second side wall can be used as observation holes when necessary, and the user can observe the length change of the surgical piece inserted into the middle cavity through these holes, so as to judge the screwing condition of the surgical piece accordingly.

[0016] Optionally, the engagement section includes a third side wall and an engagement cavity surrounded by the third side wall, the engagement cavity is connected to the middle cavity, and at least two recesses recessed toward the middle section are provided at the end of the third side wall away from the middle section. The recesses can be used to receive a part of the surgical member to provide torque for the surgical member. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The foregoing and other features and characteristics of the present application will become more apparent from the following detailed description with reference to the accompanying drawings, which are provided as examples only and are not necessarily drawn to scale. The same reference numerals are used in the drawings to indicate the same components, in which:

[0018] Figure 1 A three-dimensional schematic diagram of a medical wrench according to a preferred embodiment of the utility model is shown;

[0019] Figure 2 Shows Figure 1 A schematic top view of a medical wrench;

[0020] Figure 3 Shows Figure 1 A schematic side view of a medical wrench;

[0021] Figure 4 Shows Figure 1 A three-dimensional schematic diagram of a medical wrench equipped with a surgical component;

[0022] Figure 5 Shows Figure 4 A schematic top view of a medical wrench equipped with a surgical component; and

[0023] Figure 6 Shown along Figure 5 Sectional view along line AA. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention will now be described in detail in conjunction with the accompanying drawings. The following description is merely exemplary in nature and is not intended to limit the present invention and its application or use.

[0025] The utility model provides a medical wrench. Figure 1 A three-dimensional schematic diagram of a medical wrench 1 according to a preferred embodiment of the utility model is shown. Figure 2 Shows Figure 1 A schematic top view of the medical wrench 1 in FIG. Figure 3 Shows Figure 1 The medical wrench 1 provided by the utility model can be used to disassemble or install surgical parts in surgical operations. The surgical parts can be orthopedic implants such as orthopedic screws, steel plates, etc. Figures 4 to 6 A schematic diagram of a medical wrench 1 equipped with a surgical tool 2 is shown. Specifically, Figure 4 Shows Figure 1 The medical wrench 1 is equipped with a three-dimensional schematic diagram of a surgical part 2. Figure 5 Shows Figure 4Schematic top view of a medical wrench 1 equipped with a surgical part 2. Figure 6 Shown along Figure 5 The sectional view of the AA line in the figure. Figures 1 to 6 The medical wrench 1 provided by the utility model is described in detail.

[0026] The medical wrench 1 provided by the utility model can be made of a plastic material as a whole. The plastic material can be any suitable engineering plastic known in the art that can meet the medical grade requirements. On the one hand, the density of the plastic material is lower than that of the metal material, so the weight of the medical wrench 1 can be reduced, which is convenient for the user (usually a medical staff) to carry and use the medical wrench 1 during surgery. On the other hand, the plastic material can allow the medical wrench 1 to be mass-produced through an injection molding process, which can improve production efficiency and reduce the production cost of a single piece of the medical wrench 1. The medical wrench 1 can be disposable to avoid bacterial infection during surgery due to incomplete disinfection of the medical wrench 1.

[0027] like Figures 1 to 6 As shown, the medical wrench 1 includes an operating section 10, an intermediate section 20 and a coupling section 30. The operating section 10 is configured to be operated by a user. The user can hold the operating section 10 to operate the medical wrench 1. The coupling section 30 is configured to engage with the surgical piece 2 to be screwed so as to screw the surgical piece 2 through the medical wrench 1. For example, in one embodiment of the utility model, the surgical piece 2 can be implanted in a desired position by screwing the surgical piece 2 through the medical wrench 1. In another embodiment of the utility model, the surgical piece 2 can be removed by screwing the surgical piece 2 through the medical wrench 1. One end of the intermediate section 20 is connected to the operating section 10, and the other end is connected to the coupling section 30. Preferably, the operating section 10, the intermediate section 20 and the coupling section 30 can be integrated. For example, the operating section 10, the intermediate section 20 and the coupling section 30 can be integrally formed by an injection molding process. The operating section 10, the middle section 20 and the joint section 30 may extend in the same direction. Preferably, the middle section 20 and the joint section 30 extend in the same direction, and the operating section 10 extends perpendicular to the middle section 20 and the joint section 30. In this way, the user can save effort when operating the operating section 10.

[0028] like Figures 1 to 6As shown, one or more cavities 110 are provided in the operating section 10. Providing the cavity 110 in the operating section 10 can reduce the weight of the medical wrench 1, making it easier for the user to carry and use the medical wrench 1 during surgery. Preferably, the cavity 110 is open to the outside, that is, the user can access the cavity 110 from the outside. The outward opening of the cavity 110 can facilitate the formation of the cavity 110 in the operating section 10. For example, the outwardly opening cavity 110 can be formed in the operating section 10 by an injection molding process.

[0029] like Figures 1 to 6 As shown, in a preferred embodiment of the present invention, the operating section 10 includes a grip portion 120 and a connecting portion 130. The grip portion 120 is configured to be gripped by a user to operate the medical wrench 1. The grip portion 120 has a flat shape or any other suitable shape that is convenient for the user to grip. The grip portion 120 includes a grip portion side wall 121 (i.e., a "first side wall") and a grip portion cavity 122 (i.e., a "first cavity") surrounded by the grip portion side wall 121. The grip portion cavity 122 opens outward, that is, the grip portion cavity 122 has an opening portion that is not covered by the grip portion side wall 121, and the user can contact the grip portion cavity 122 from the outside.

[0030] like Figures 1 to 6 As shown, the connection portion 130 of the operating section 10 is connected between the grip portion 120 and the middle section 20, and the operating section 10 is connected to the middle section 20 via its connection portion 130. The connection portion 130 is thinner than the grip portion 120 to further reduce the weight of the medical wrench 1. The connection portion 130 includes a first longitudinal rib 131 and a second longitudinal rib 132 that are staggered with each other. The first longitudinal rib 131 and the second longitudinal rib 132 both extend from one end of the connection portion 130 connected to the middle section 20 to one end of the connection portion 130 connected to the grip portion 120. In a preferred embodiment of the present invention, the first longitudinal rib 131 and the second longitudinal rib 132 may directly intersect. Optionally, in other embodiments not shown in the present invention, the connecting portion 130 may include a body extending from one end of the connecting portion 130 connected to the middle section 20 to one end of the connecting portion 130 connected to the gripping portion 120, the body being located in the center of the connecting portion 130 and being substantially cylindrical in shape, and the first longitudinal ribs 131 and the second longitudinal ribs 132 being respectively connected to the body and extending from the body. The staggered first longitudinal ribs 131 and the second longitudinal ribs 132 can separate the connecting portion 130 into a plurality of (e.g., four) spaces. Preferably, the first longitudinal ribs 131 and the second longitudinal ribs 132 intersect in a "cross" shape. That is, the first longitudinal ribs 131 and the second longitudinal ribs 132 intersect at 90 degrees at their respective central axes of symmetry. In this way, the first longitudinal ribs 131 and the second longitudinal ribs 132 can evenly separate the connecting portion 130 into four spaces.

[0031] like Figures 1 to 6 As shown, the connection portion 130 of the operating section 10 also includes a plurality of first transverse ribs 133. These first transverse ribs 133 intersect with the first longitudinal ribs 131 and the second longitudinal ribs 132, and the plurality of first transverse ribs 133 are arranged at intervals to form a connection portion cavity 134 (i.e., "second cavity") between adjacent first transverse ribs 133. Each connection portion cavity 134 is surrounded by two adjacent first transverse ribs 133, a portion of the first longitudinal ribs 131, and a portion of the second longitudinal ribs 132. It can be understood that in a preferred embodiment of the present utility model, the gripping portion cavity 122 in the gripping portion 120 and the connection portion cavity 134 in the connection portion 130 together constitute the above-mentioned cavity 110 in the operating section 10 to reduce the weight of the medical wrench 1. In addition, the first longitudinal ribs 131 and the second longitudinal ribs 132 of the connecting portion 130, which are staggered with each other, and the plurality of first transverse ribs 133 arranged at intervals, can provide sufficient strength and rigidity for the connecting portion 130 and thus the medical wrench 1, while providing the above-mentioned connecting portion cavity 134 to reduce weight. In particular, when the first longitudinal ribs 131 and the second longitudinal ribs 132 intersect in a "cross" shape, the first longitudinal ribs 131, the second longitudinal ribs 132, and the plurality of first transverse ribs 133 can provide uniform and sufficient strength and rigidity for the connecting portion 130 and thus the medical wrench 1.

[0032] like Figures 1 to 6 As shown, in order to further improve the strength of the medical wrench 1, a reinforcing rib 140 is provided in the grip cavity 122. Specifically, in a preferred embodiment of the utility model, the reinforcing rib 140 includes additional longitudinal ribs 141 and additional transverse ribs 142 arranged alternately. Preferably, the additional longitudinal ribs 141 and the additional transverse ribs 142 intersect to form a "cross". In this way, uniform and sufficient strength and rigidity can be provided for the grip 120 and thus the medical wrench 1. Both ends of the additional longitudinal ribs 141 and both ends of the additional transverse ribs 142 are connected to the grip side wall 121. The additional longitudinal ribs 141 extend from one end of the grip 120 connected to the connecting portion 130 to the other opposite end of the grip 120. A plurality of additional transverse ribs 142 are spaced apart from each other in the direction from one end of the grip 120 connected to the connecting portion 130 to the other opposite end of the grip 120. Both ends of the additional transverse ribs 142 are connected to the gripping portion side wall 121 , and the middle portions of the additional transverse ribs 142 are connected to the additional longitudinal ribs 141 .

[0033] like Figures 1 to 6As shown, the middle section 20 is a hollow rod-shaped member. Specifically, in a preferred embodiment of the present invention, the middle section 20 includes a middle section side wall 210 (i.e., a "second side wall") and a middle cavity 220 surrounded by the middle section side wall 210. The middle cavity 220 can be used to accommodate a portion of the surgical member 2 extending from the joint section 30 when necessary. The middle section side wall 210 is provided with a plurality of orifices 230 penetrating the middle section side wall 210. The orifices 230 can be elongated holes. On the one hand, these orifices 230 can further reduce the weight of the medical wrench 1, making it easier for the user to carry and use the medical wrench 1 during surgery. On the other hand, these orifices 230 can be used as observation holes when necessary, and the user can observe the length change of the surgical member 2 extending into the middle cavity 220 in the middle cavity 220 through these orifices 230, so as to judge the screwing condition of the surgical member 2 accordingly.

[0034] As described above, the engagement section 30 is configured to engage with the surgical member 2 to be screwed. In order to engage the surgical member 2, in a preferred embodiment of the present invention, the engagement section 30 includes an engagement section side wall 310 (i.e., a "third side wall") and an engagement cavity 320 surrounded by the engagement section side wall 310. The engagement cavity 320 is communicated with the middle cavity 220 of the middle section 20. As required, a portion of the surgical member 2 engaged in the engagement section 30 can extend into the middle cavity 220 of the middle section 20 through the engagement cavity 320. At least two recesses 330 recessed toward the middle section 20 are provided at the end of the engagement section side wall 310 away from the middle section 20. The recess 330 is used to receive a portion of the surgical member 2 to provide torque to the surgical member 2. For example, in one embodiment of the present invention, two recesses 330 recessed toward the middle section 20 are provided at the end of the engagement section side wall 310 away from the middle section 20, and the two recesses 330 are symmetrically arranged. The two symmetrically arranged recesses 330 can be used to receive a portion of a “X”-shaped or “T”-shaped surgical member 2 to provide torque to the surgical member 2 .

[0035] In summary, the operating section 10 of the medical wrench 1 according to the present invention is provided with a cavity 110, which can reduce the weight of the medical wrench 1, making it easier for the user to carry and use the medical wrench 1 during surgery. In addition, the cavity 110 of the medical wrench 1 according to a preferred embodiment of the present invention is provided with a plurality of ribs, which can provide sufficient strength and rigidity. The inventors have found that Figures 1 to 3 The medical wrench 1 according to a preferred embodiment of the present invention shown in FIG. 1 can withstand a medical standard torque of 3 Nm without being damaged even if engineering plastics known in the art that can meet medical grade requirements are used.

[0036] It should be understood that various different embodiments can be further designed by combining or modifying different embodiments and various technical features in different ways.

[0037] The above describes the preferred embodiments according to the present invention in conjunction with the specific embodiments. It is understood that the above description is only exemplary and not restrictive. Without departing from the scope of the present invention, those skilled in the art can think of various variations and modifications with reference to the above description. These variations and modifications are also included in the protection scope of this application.

Claims

1. A medical wrench, characterized in that: The medical wrench comprises: an operating section configured to be operated by a user; an engagement section configured to engage with an operating part to be screwed; and a middle section, two ends of which are respectively connected to the operating section and the engaging section; Wherein, the operating section is provided with a cavity.

2. The medical wrench according to claim 1, characterized in that: The middle section and the engaging section extend in the same direction, and the operating section extends perpendicularly to the middle section and the engaging section.

3. The medical wrench according to claim 1, characterized in that: The cavity opens outward.

4. The medical wrench according to claim 3, characterized in that: The operating section comprises: a grip portion, the grip portion being configured to be gripped by a user, the grip portion comprising a first side wall and a first cavity surrounded by the first side wall; and a connecting portion, the connecting portion being connected between the gripping portion and the middle section, the connecting portion comprising first longitudinal ribs and second longitudinal ribs arranged alternately with each other and a plurality of first transverse ribs intersecting the first longitudinal ribs and the second longitudinal ribs, the plurality of first transverse ribs being arranged at intervals to form a second cavity between adjacent first transverse ribs; The cavity includes the first cavity and the second cavity.

5. The medical wrench according to claim 4, characterized in that: A reinforcing rib is arranged in the first cavity.

6. The medical wrench according to claim 5, characterized in that: The reinforcing ribs include additional longitudinal ribs and additional transverse ribs that are alternately arranged, and both ends of the additional longitudinal ribs and both ends of the additional transverse ribs are connected to the first side wall.

7. The medical wrench according to claim 6, characterized in that: The additional longitudinal ribs and the additional transverse ribs intersect to form a "cross" shape.

8. The medical wrench according to claim 4, characterized in that: The first longitudinal rib and the second longitudinal rib intersect to form a "cross" shape.

9. The medical wrench according to any one of claims 1 to 8, characterized in that: The middle section includes a second side wall and a middle cavity surrounded by the second side wall, and the second side wall is provided with a plurality of holes penetrating the second side wall.

10. The medical wrench according to claim 9, characterized in that: The joining section comprises a third side wall and a joining cavity surrounded by the third side wall, the joining cavity is communicated with the middle cavity, and at least two recesses recessed toward the middle section are arranged at the end of the third side wall away from the middle section.

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