Minimally invasive automatic force-limiting broken screw holding rod

Abstract

The utility model provides a minimally invasive automatic force limit breaking screw holding rod which comprises a holding rod body, a mounting seat is arranged on the left side of an inner cavity of the holding rod body, a screw body is in threaded connection with the interior of an inner cavity of the mounting seat, a fixing mechanism is arranged on the outer side of the holding rod body, and the fixing mechanism comprises a two-way screw rod, a rotary knob and a threaded sleeve. An adjusting mechanism is arranged on the outer side of the fixing plate, by arranging the fixing mechanism, the screw body and the mounting base can be fixed, the holding rod body can be conveniently used for connecting the screw body to a part needing to be fixed in an operation in a threaded mode, and after the operation part is fixed through the screw body, the holding rod body and the screw body can be rapidly separated; the device is simple in structure and convenient to disassemble and assemble, by arranging the adjusting mechanism, the fixing position of the holding rod body can be conveniently adjusted, the holding rod body with different lengths can be conveniently fixed after the holding rod body is broken off according to use requirements, and the overall use range of the device is expanded.

Description

Technical Field

[0001] The utility model relates to a minimally invasive automatic force-limiting breaking screw holding rod, belonging to the technical field of minimally invasive surgery. Background Art

[0002] As the name suggests, minimally invasive surgery involves only minimal incisions or trauma, a hallmark of modern surgical procedures. It's a technical term for techniques that cause only minimal trauma to the patient during surgery and leave only a minimal wound afterward. It's a technological achievement relative to traditional surgery. Therefore, minimally invasive is a term specifically associated with surgery and procedures, such as minimally invasive surgery. While there's no precise definition of minimally invasive surgery, many surgeons believe it should be considered relative to traditional surgery, characterized by four key characteristics: small incisions, minimal trauma, rapid recovery, and minimal pain. Minimally invasive surgery is a medical revolution brought about by advanced technology.

[0003] In minimally invasive surgery, screws are often used to fix the surgical site. In order to fix the screws, a screw holder is often used. Since different surgical sites require different lengths of holders, multiple lengths of holders are needed when fixing screws at different surgical sites, which results in material waste. In addition, after the screws are fixed, the holder needs to be quickly separated from the screw to avoid cumbersome disassembly of the holder and the screw, which prolongs the operation time.

[0004] Therefore, a minimally invasive automatic force-limiting breaking screw holder is proposed. Utility Model Content

[0005] In view of this, the present invention provides a minimally invasive automatic force-limiting breaking screw holder to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the utility model is achieved as follows: a minimally invasive automatic force-limited breaking screw holder, comprising a holder body, a mounting seat provided on the left side of the inner cavity of the holder body, and a screw body threadedly connected in the inner cavity of the mounting seat;

[0007] A fixing mechanism is provided on the outside of the rod holding body, and the fixing mechanism includes a bidirectional screw, a knob, a screw sleeve, a fixing plate and an insert;

[0008] An adjustment mechanism is provided on the outer side of the fixing plate, and the adjustment mechanism comprises a fixing block, a sliding rod, a sliding block, a pulling block and a plug-in block.

[0009] Further preferably, the bidirectional screw is arranged on the right side of the rod holding body, the knob is fixedly installed on the middle end of the bidirectional screw, the two screw sleeves are threadedly connected to the upper and lower sides of the knob surface, the two fixing plates are fixedly installed on the outer sides of the two screw sleeves, and the two inserts are fixedly installed on the inner sides of the two fixing plates.

[0010] Further preferably, slots are provided on both the upper and lower sides of the surface of the rod holding body, and the inserting block passes through the inner cavity of the slots and extends into the inner cavity of the fixing groove.

[0011] Further preferably, the fixed blocks are fixedly installed on the left and right sides of the outer sides of the two fixed plates, the sliding rod is fixedly installed on the inner side of the fixed block, the slider is slidably connected to the surface of the sliding rod, the two pulling blocks are fixedly installed on the outer sides of the two sliders, and the two plug-in blocks are fixedly installed on the inner sides of the two sliders.

[0012] Further preferably, plug-in slots are provided on both the upper and lower sides of the right side of the surface of the rod holding body, and the two plug-in blocks pass through the inner cavity of the plug-in slots and extend into the inner cavity of the rod holding body.

[0013] Further preferably, a movable groove is opened on the surface of the fixing plate, and the plug-in block passes through the inner cavity of the movable groove and extends to the inner side of the fixing plate.

[0014] Further preferably, the surface of the rod holding body is provided with easy-folding grooves, and the number of the easy-folding grooves is three.

[0015] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0016] 1. The utility model can fix the screw body and the mounting seat by setting a fixing mechanism, and conveniently use the holding rod body to thread the screw body to the part that needs to be fixed during surgery. After the screw body fixes the surgical part, the holding rod body and the screw body can be quickly separated, which is convenient for disassembly and installation. By setting an adjustment mechanism, the fixing position of the holding rod body can be conveniently adjusted, and the holding rod body can be fixed at different lengths after being broken off according to usage needs, thereby expanding the overall scope of use of the equipment.

[0017] Second, the present invention can quickly fix or remove the mounting base and the screw body by providing an insert block, thereby reducing the cumbersome disassembly method between the mounting base and the rod holder body, which will delay the overall surgical time. By providing a slot, the moving direction of the insert block can be limited to prevent it from deflecting during movement, which would affect the quick disassembly of the mounting base. By providing a sliding rod, the moving position of the insert block can be easily adjusted, which facilitates the adjustment and fixation of different positions of the rod holder body. After the rod holder body is broken according to the applicable scope of the operation, the different positions of the rod holder body can be adjusted and fixed. By providing an insert slot, the moving direction of the insert block can be limited to prevent it from deflecting during movement, which would affect the fixation of different areas of the rod holder body. By providing a movable slot, the moving direction of the insert block can be limited to prevent the insert block from deflecting when moving left and right, resulting in the inability to be inserted into the inner cavity of the insert slot. By providing an easy-to-break groove, the rod holder body can be easily broken, which facilitates the control of the length of the rod holder body according to the actual scope of use required for the operation.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional front view structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the screw disassembly structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the bidirectional screw disassembly structure of the present utility model.

[0024] Figure numerals: 1. Rod holding body; 2. Fixing mechanism; 201. Bidirectional screw; 202. Knob; 203. Screw sleeve; 204. Fixing plate; 205. Insert block; 206. Slot; 3. Adjusting mechanism; 301. Fixing block; 302. Sliding rod; 303. Sliding block; 304. Pulling block; 305. Connecting block; 306. Connecting slot; 307. Moving slot; 4. Screw body; 5. Mounting seat; 6. Fixing slot; 7. Breaking slot. DETAILED DESCRIPTION

[0025] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 1-4 As shown, the embodiment of the present invention provides a minimally invasive automatic force-limited breaking screw holder, comprising a holder body 1, a mounting seat 5 is provided on the left side of the inner cavity of the holder body 1, and a screw body 4 is threadedly connected in the inner cavity of the mounting seat 5;

[0029] The outer side of the rod holder body 1 is provided with a fixing mechanism 2, which includes a bidirectional screw 201, a knob 202, a screw sleeve 203, a fixing plate 204 and an insert 205;

[0030] An adjustment mechanism 3 is provided on the outer side of the fixing plate 204 . The adjustment mechanism 3 includes a fixing block 301 , a sliding rod 302 , a sliding block 303 , a pulling block 304 and a plug-in block 305 .

[0031] By setting up the fixing mechanism 2, the screw body 4 and the mounting seat 5 can be fixed, and the screw body 4 can be conveniently connected to the position where the surgery needs to be fixed using the rod holding body 1. After the screw body 4 fixes the surgical position, the rod holding body 1 can be quickly separated from the screw body 4, which is convenient for disassembly and installation. By setting up the adjustment mechanism 3, the fixing position of the rod holding body 1 can be conveniently adjusted, and the rod holding body 1 can be conveniently fixed at different lengths after being broken according to the needs of use, thereby expanding the overall use range of the equipment.

[0032] Example 2

[0033] In one embodiment, the bidirectional screw 201 is arranged on the right side of the rod holding body 1, the knob 202 is fixedly installed on the middle end of the bidirectional screw 201, the two screw sleeves 203 are threadedly connected to the upper and lower sides of the surface of the knob 202, the two fixing plates 204 are fixedly installed on the outside of the two screw sleeves 203, the two plug blocks 205 are fixedly installed on the inner sides of the two fixing plates 204, the upper and lower sides of the surface of the rod holding body 1 are provided with slots 206, the plug blocks 205 pass through the inner cavity of the slots 206 and extend into the inner cavity of the fixing groove 6, the fixing blocks 301 are fixedly installed on the left and right sides of the outer sides of the two fixing plates 204, and the sliding rod 302 is fixedly installed on the fixing plate 204. On the inner side of the fixed block 301, the slider 303 is slidably connected to the surface of the sliding rod 302, the two pull blocks 304 are fixedly installed on the outer sides of the two sliders 303, and the two plug-in blocks 305 are fixedly installed on the inner sides of the two sliders 303. Plug-in grooves 306 are provided on the upper and lower sides of the right side of the surface of the rod holding body 1. The two plug-in blocks 305 pass through the inner cavity of the plug-in groove 306 and extend into the inner cavity of the rod holding body 1. A movable groove 307 is provided on the surface of the fixed plate 204. The plug-in blocks 305 pass through the inner cavity of the movable groove 307 and extend to the inner side of the fixed plate 204. The surface of the rod holding body 1 is provided with easy-folding grooves 7, and the number of easy-folding grooves 7 is three.

[0034] By providing the insert block 205, the mounting seat 5 and the screw body 4 can be quickly fixed or disassembled, reducing the cumbersome disassembly method between the mounting seat 5 and the rod holding body 1, which will delay the overall operation time. By providing the slot 206, the moving direction of the insert block 205 can be limited to avoid deviation during movement, which affects the quick disassembly of the mounting seat 5. By providing the slide bar 302, the moving position of the insert block 305 can be easily adjusted, which is convenient for adjusting the different positions of the rod holding body 1, and is convenient for fixing the rod holding body 1 after the rod holding body 1 is broken according to the operation. The rod body 1 can be adjusted and fixed at different positions. By setting the plug-in slot 306, the moving direction of the plug-in block 305 can be limited to avoid deviation during movement, which affects the fixation of different areas of the rod holding body 1. By setting the moving slot 307, the moving direction of the plug-in block 305 can be limited to avoid the direction of the plug-in block 305 being offset when moving left and right, resulting in the inability to be plugged into the inner cavity of the plug-in slot 306. By setting the easy-to-break groove 7, the rod holding body 1 can be easily broken, so that the length of the rod holding body 1 can be controlled according to the actual range of use required for the operation.

[0035] When the utility model is working: according to the part where the operation is to be carried out, after the holding rod body 1 is broken by the cooperation of the easy-breaking groove 7, the holding rod body 1 is placed on the inner side of the fixing plate 204, and the plug-in block 205 is located on the outer side of the slot 206 and the fixing groove 6. At this time, the pull block 304 is pulled to move to the right. When the pull block 304 moves, the slider 303 moves to the right along the surface of the slide bar 302, and drives the plug-in block 305 to move to the right along the inner cavity of the moving groove 307, so that it moves to the position according to the breaking position. After the top of the plug-in slot 306 on the surface of the rear holding rod body 1 is reached, the knob 202 is turned. At this time, the screw sleeve 203 moves inward along the thread on the surface of the bidirectional screw 201, and drives the fixing plate 204, the plug-in block 205 and the plug-in block 305 to move inward synchronously. The plug-in block 205 passes through the inner cavity of the slot 206 and is inserted into the inner cavity of the fixing slot 6 to complete the fixation of the screw body 4. At the same time, the plug-in block 305 is inserted into the inner cavity of the plug-in slot 306 to complete the adjustment work of fixing the holding rod body 1 at different broken positions.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A minimally invasive automatic force-limited breaking screw holder, characterized by: It comprises a rod holding body (1), a mounting seat (5) is provided on the left side of the inner cavity of the rod holding body (1), and a screw body (4) is threadedly connected in the inner cavity of the mounting seat (5); A fixing mechanism (2) is provided on the outer side of the rod holding body (1), and the fixing mechanism (2) comprises a bidirectional screw (201), a knob (202), a screw sleeve (203), a fixing plate (204) and an insert (205); An adjustment mechanism (3) is provided on the outer side of the fixed plate (204), and the adjustment mechanism (3) comprises a fixed block (301), a sliding rod (302), a sliding block (303), a pulling block (304) and a plug-in block (305).

2. The minimally invasive automatic force-limiting breaking screw holder according to claim 1, characterized in that: The bidirectional screw (201) is arranged on the right side of the rod holding body (1), the knob (202) is fixedly installed on the middle end of the bidirectional screw (201), the two screw sleeves (203) are both threadedly connected to the upper and lower sides of the knob (202), the two fixing plates (204) are both fixedly installed on the outside of the two screw sleeves (203), and the two insert blocks (205) are both fixedly installed on the inside of the two fixing plates (204).

3. The minimally invasive automatic force-limited breaking screw holder according to claim 1, characterized in that: Slots (206) are provided on both the upper and lower sides of the surface of the rod holding body (1), and the insert block (205) passes through the inner cavity of the slot (206) and extends into the inner cavity of the fixing groove (6).

4. The minimally invasive automatic force-limited breaking screw holder according to claim 1, characterized in that: The fixed blocks (301) are fixedly mounted on the left and right sides of the outer sides of the two fixed plates (204); the sliding rod (302) is fixedly mounted on the inner side of the fixed blocks (301); the slider (303) is slidably connected to the surface of the slider (302); the two pulling blocks (304) are fixedly mounted on the outer sides of the two sliders (303); and the two plug-in blocks (305) are fixedly mounted on the inner sides of the two sliders (303).

5. The minimally invasive automatic force-limited breaking screw holder according to claim 1, characterized in that: Insertion slots (306) are provided on both the upper and lower sides of the right side of the surface of the rod holding body (1), and the two insertion blocks (305) pass through the inner cavity of the insertion slots (306) and extend into the inner cavity of the rod holding body (1).

6. The minimally invasive automatic force-limited breaking screw holder according to claim 1, characterized in that: A movable groove (307) is provided on the surface of the fixed plate (204), and the plug-in block (305) passes through the inner cavity of the movable groove (307) and extends to the inner side of the fixed plate (204).

7. The minimally invasive automatic force-limited breaking screw holder according to claim 1, characterized in that: The surface of the rod holding body (1) is provided with easy-folding grooves (7), and the number of the easy-folding grooves (7) is three.

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