Ceramic lining extractor

Abstract

The utility model relates to the technical field of medical equipment, in particular to a ceramic lining extractor which comprises a knocking part and a body, the first end of the body is connected with the knocking part, the second end of the body is a free end, and the free end of the body abuts against the open end of a ceramic lining in the using process. Wherein the body comprises a holding part, an upwarp part and an extension part, and the knocking part, the holding part, the upwarp part and the extension part are sequentially connected in the length direction of the body. The ceramic lining extractor solves the problem that an existing ceramic lining extractor is not beneficial to clinical operation of an operator.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a ceramic liner extractor. Background Art

[0002] For the surgical treatment of hip joint diseases, artificial hip replacement has gradually become the main treatment method after decades of development. However, the treatment of hip joint diseases by artificial hip replacement faces an unavoidable problem after surgery, that is, artificial hip prosthesis revision. The time from artificial hip replacement to artificial hip prosthesis revision is long or short, and there are various influencing factors, such as traumatic fracture, aseptic loosening, etc., and the types of revision surgery are also increasing. However, no matter what type of revision surgery is taken, removing the worn ceramic liner is an indispensable first step. However, due to its special shape, fixing method and smooth outer surface, in the process of removing the worn ceramic liner, it is usually necessary to use knocking and vibration to vibrate and loosen the ceramic liner, and then remove the ceramic liner from the acetabulum. However, the existing ceramic liner removal instrument is relatively large in size, which affects the operator's operating field of view, thereby affecting the removal of the ceramic liner, prolonging the operation time, and increasing the patient's pain.

[0003] Therefore, how to provide a ceramic liner remover that is convenient for operators to perform clinical operations is a problem that urgently needs to be solved in clinical practice. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model provides a ceramic liner extractor.

[0005] The utility model provides a ceramic liner extractor, comprising: a knocking part and a body, wherein the first end of the body is connected to the knocking part, the second end of the body is a free end, and the free end of the body abuts against the open end of the ceramic liner during use;

[0006] Wherein, the main body comprises a gripping portion, an upturned portion and an extending portion, and the striking portion, the gripping portion, the upturned portion and the extending portion are sequentially connected along the length direction of the main body.

[0007] Preferably, a locking component is further included, and the locking component is arranged at the free end of the body. During use, the locking component limits the body so that the free end of the body is tightly attached to the open end of the ceramic liner.

[0008] Preferably, the locking component comprises a limit strip and a limit block, the limit strip is arranged at the outer edge of the bottom of the extension portion, and the limit strip extends along the length direction of the body toward the outer edge of the opening end of the ceramic liner;

[0009] The limit block is arranged on the bottom surface of the second end of the body, and the extending direction of the limit block is the same as the extending direction of the limit strip;

[0010] The extension length of the limit strip is greater than the extension length of the limit block;

[0011] A limiting space is formed between the limiting strip and the limiting block.

[0012] Preferably, a plurality of the limit blocks are provided, and the plurality of limit blocks are arranged at intervals in a step-like manner.

[0013] Preferably, the connecting end between the upturned portion and the gripping portion is upturned in an arc shape, and the connecting end between the upturned portion and the extending portion is bent downward in an arc shape.

[0014] Preferably, the holding portion and the extending portion are arranged in parallel along the length direction of the body.

[0015] Preferably, the striking part, the body and the locking component are integrally connected.

[0016] Preferably, the striking part is a cuboid or a cube, and the area of ​​the upper surface of the striking part is larger than the area of ​​the interface between the striking part and the body.

[0017] Preferably, the body is made of stainless steel, titanium alloy or aluminum alloy.

[0018] Preferably, the body gradually becomes narrower and thinner from the first end to the second end.

[0019] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0020] The utility model provides a ceramic liner extractor. By setting a striking part, the operator can use a surgical hammer to strike the part during the operation. The striking force causes the main body to generate a vibration force, and the ceramic liner is separated from the acetabular cup through vibration, and finally the ceramic liner is removed. The main body includes a gripping part, an upturned part and an extension part. The gripping part is convenient for the operator to grasp the main body during the operation. The upturned part is arranged in the middle section of the main body, which is convenient for effectively avoiding the physiological protrusions related to the human body during the operation. The extension part is arranged to facilitate the free end of the main body to be inserted into the human body and abut against the ceramic liner, thereby ensuring that the vibration force can fully act on the ceramic liner. The utility model provides a ceramic liner extractor that is simple to use and has reliable vibration force.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a three-dimensional structural diagram of a ceramic lining extractor provided by the utility model.

[0024] Figure 2 The utility model is a side structural diagram of a ceramic liner extractor provided by the utility model.

[0025] Figure 3 The utility model is a use state diagram of a ceramic lining extractor provided by the utility model.

[0026] Reference numerals:

[0027] 100, percussion part;

[0028] 200, main body; 201, gripping portion; 202, upwardly tilted portion; 203, extending portion;

[0029] 300, locking component; 301, limiting strip; 302, limiting block. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all 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. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0031] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0033] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0035] Combine the following Figures 1 to 3 The utility model describes a ceramic liner extractor.

[0036] The utility model provides a ceramic liner extractor, comprising: a striking part 100 and a main body 200, wherein the first end of the main body 200 is connected to the striking part 100, and the second end of the main body 200 is a free end. During use, the free end of the main body 200 abuts against the open end of the ceramic liner. During clinical surgery, the operator can use a striking hammer to strike the striking part 100, and the striking force causes the main body 200 to generate a vibration force. Under the action of the vibration force, the ceramic liner is separated from the acetabulum, and the separated ceramic liner is convenient for the operator to remove it from the human body.

[0037] Considering how to facilitate the operator's clinical operation, how to avoid the physiological protrusions of human tissue to ensure that the operator has a sufficient surgical field of view, and how to fully contact the main body 200 with the open end of the ceramic liner, the main body 200 is provided with three parts: a gripping part 201, an upturned part 202, and an extension part 203. The knocking part 100, the gripping part 201, the upturned part 202, and the extension part 203 are sequentially connected along the length direction of the main body 200. The gripping part 201 is provided to facilitate the operator to hold the main body 200 during the operation; the upturned part 202 is provided in the middle section of the main body 200, so as to effectively avoid the physiological protrusions related to the human body during the operation, and can ensure that the operator has a sufficient field of view during the operation, which is conducive to the operator's operation; the extension part 203 is provided to facilitate the main body 200 to be inserted into the human body and abut against the open end of the ceramic liner, so as to ensure that the vibration force can fully act on the ceramic liner.

[0038] An embodiment provided by the utility model further includes a locking component 300, which is arranged at the free end of the main body 200. During use, the locking component 300 limits the main body 200 so that the free end of the main body 200 is tightly attached to the open end of the ceramic lining, thereby effectively avoiding the movement of the main body 200 and reducing the vibration force.

[0039] In one embodiment provided by the utility model, the locking component 300 includes a limiting strip 301 and a limiting block 302, wherein the limiting strip 301 is arranged at the bottom of the outer edge of the extension portion 203, and the limiting strip 301 extends along the length direction of the body 200 toward the outer edge of the opening end of the ceramic liner;

[0040] The limiting block 302 is disposed on the bottom surface of the second end of the body 200 , and the extending direction of the limiting block 302 is the same as the extending direction of the limiting strip 301 ;

[0041] The extension length of the limiting strip 301 is greater than the extension length of the limiting block 302;

[0042] A limiting space is formed between the limiting strip 301 and the limiting block 302. When the free end of the main body 200 is close to the opening end of the ceramic lining, the opening end of the ceramic lining is located in the limiting space, the inner edge of the opening end of the ceramic lining abuts against the side wall of the limiting block 302, and the outer edge of the opening end of the ceramic lining abuts against the side wall of the limiting strip 301, thereby ensuring that the main body 200 is in a relatively stable state. When the knocking part 100 is knocked, the main body 200 can receive sufficient vibration force acting on the ceramic lining.

[0043] In one embodiment provided by the utility model, a plurality of the limit blocks 302 are provided, and the plurality of the limit blocks 302 are arranged at intervals in a step shape. The plurality of limit blocks 302 can meet the application requirements of ceramic liners of different models.

[0044] In one embodiment provided by the present invention, the upturned portion 202 is curved upward along the end connected to the grip portion 201, and the upturned portion 202 is curved downward along the end connected to the extension portion 203. The curved setting is conducive to expanding the operator's operating field of vision and facilitating the operator's clinical operation.

[0045] In an embodiment provided by the present invention, the holding portion 201 and the extending portion 203 are arranged in parallel along the length direction of the body 200 .

[0046] In an embodiment provided by the present invention, the striking part 100, the body 200 and the locking component 300 are integrally connected.

[0047] In one embodiment provided by the utility model, the knocking part 100 is a cuboid or a cube, and the upper surface of the knocking part 100 is larger than the interface between the knocking part 100 and the body 200. By knocking the upper surface of the knocking part 100 at multiple points on the circumference, the ceramic lining can be quickly loosened and removed.

[0048] In one embodiment provided by the present invention, the body 200 is made of stainless steel, titanium alloy, or aluminum alloy. Stainless steel, titanium alloy, or aluminum alloy is a commonly used medical material in clinical practice and has a certain rigidity. When the knocking part 100 is knocked, it does not deform and can transmit the vibration force received by the body 200 to the open end of the ceramic liner.

[0049] In one embodiment of the present invention, the body 200 gradually narrows and thins from the first end to the second end. The body 200 is configured to gradually narrow and thin from the first end to the second end, so that the operator can have a wider field of view to observe the surgical site or perform clinical operations.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A ceramic liner extractor, characterized in that: include: A striking part and a body, wherein the first end of the body is connected to the striking part, and the second end of the body is a free end, and the free end of the body abuts against the open end of the ceramic liner during use; Wherein, the main body comprises a gripping portion, an upturned portion and an extending portion, and the striking portion, the gripping portion, the upturned portion and the extending portion are sequentially connected along the length direction of the main body.

2. A ceramic liner extractor as claimed in claim 1, characterized in that: It also includes a locking component, which is arranged at the free end of the body. During use, the locking component limits the body so that the free end of the body is closely attached to the open end of the ceramic liner.

3. A ceramic liner extractor as claimed in claim 2, characterized in that: The locking component comprises a limit strip and a limit block, wherein the limit strip is arranged at the outer edge of the bottom of the extension portion, and the limit strip extends along the length direction of the body toward the outer edge of the opening end of the ceramic liner; The limit block is arranged on the bottom surface of the second end of the body, and the extending direction of the limit block is the same as the extending direction of the limit strip; The extension length of the limit strip is greater than the extension length of the limit block; A limiting space is formed between the limiting strip and the limiting block.

4. A ceramic liner extractor as claimed in claim 3, characterized in that: A plurality of the limit blocks are provided, and the plurality of limit blocks are arranged at intervals in a step shape.

5. A ceramic liner extractor as claimed in claim 1, characterized in that: The connecting end of the upturned portion and the holding portion is upturned in an arc shape, and the connecting end of the upturned portion and the extending portion is bent downward in an arc shape.

6. A ceramic liner extractor as claimed in claim 1, characterized in that: The holding portion and the extending portion are arranged in parallel along the length direction of the body.

7. A ceramic liner extractor as claimed in claim 2, characterized in that: The knocking part, the main body and the locking component are integrally connected.

8. A ceramic liner extractor as claimed in claim 1, characterized in that: The knocking part is a cuboid or a cube, and the area of ​​the upper surface of the knocking part is larger than the area of ​​the contact surface between the knocking part and the body.

9. A ceramic liner extractor as claimed in claim 1, characterized in that: The body is made of stainless steel, titanium alloy or aluminum alloy.

10. The ceramic liner extractor according to claim 1, characterized in that: The body gradually becomes narrower and thinner from the first end to the second end.

Images