CN214049048U

CN214049048U - Spiral blade taking-out tool

Info

Publication number: CN214049048U
Application number: CN202022231653.4U
Authority: CN
Inventors: 张玙; 刘晨; 徐宏光
Original assignee: Yijishan Hospital of Wannan Medical College
Current assignee: Yijishan Hospital of Wannan Medical College
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-08-27
Anticipated expiration: 2030-10-09

Abstract

The utility model belongs to the technical field of medical equipment, in particular to a spiral blade taking-out tool, and provides a scheme which comprises a supporting plate, wherein a crochet hook clamping mechanism is arranged on one side of the top of the supporting plate, and a screw rod clamping mechanism is arranged at the bottom of the crochet hook clamping mechanism; the crochet hook clamping mechanism comprises a crochet hook placing plate fixedly connected with the top of the supporting plate, a guide groove is formed in one side, far away from the supporting plate, of the crochet hook placing plate, a crochet hook extending groove which is recessed inside the crochet hook placing plate is formed in the bottom of the guide groove, a crochet hook end placing groove is formed in the top of the crochet hook extending groove, and a crochet hook clamping groove in the bottom of the crochet hook placing plate is penetrated through the bottom of the crochet hook end placing groove. The utility model discloses can realize lag screw's normal operation of taking out, can also adopt blade main part crochet hook to take out the operation simultaneously in lag screw fracture, make things convenient for medical personnel to carry out lag screw and take out the operation, improve operation efficiency, reduce medical personnel's intensity of labour.

Description

Spiral blade taking-out tool

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to helical blade takes out instrument.

Background

In a surgical operation for treating bone fracture, an intramedullary nail is generally used for fixing a fracture part, and the intramedullary nail needs a lag screw to fix the intramedullary nail on a skeleton of a human body, but in clinical application, the lag screw may be damaged in a process of taking out the lag screw, so that the situation that the lag screw cannot be taken out by using a lag screw extractor occurs, and therefore, a spiral blade extraction tool is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a spiral blade takes out instrument has solved the problem that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the spiral blade taking-out tool comprises a supporting plate, wherein a crochet hook clamping mechanism is installed on one side of the top of the supporting plate, and a screw rod clamping mechanism is installed at the bottom of the crochet hook clamping mechanism;

the crochet hook clamping mechanism comprises a crochet hook placing plate fixedly connected with the top of a support plate, one side of the crochet hook placing plate, which is far away from the support plate, is provided with a guide groove, a crochet hook extending groove which is sunken towards the inside of the crochet hook placing plate is arranged below the bottom of the guide groove, the top of the crochet hook extending groove is provided with a crochet hook end placing groove, the bottom of the crochet hook end placing groove is penetrated with a crochet hook clamping groove at the bottom of the crochet hook placing plate, one end of the crochet hook placing plate, which is far away from the support plate, is slidably sleeved with a cover shell of a U-shaped structure, the top opening of the cover shell is fixedly connected with a cover plate, the cover plate is penetrated with a sliding groove with a cross-shaped cross section, the inside of the sliding groove is slidably sleeved with a movable block, the inside of the movable block is fixedly sleeved with a power rod, the power rod is fixedly connected with the top of the crochet hook placing plate, the bottom of the movable block is fixedly connected with an extending plate fixedly sleeved with the power rod, one side of the extending plate, which is far away from the cover shell, is fixedly connected with a first spring, the other end rigid coupling of first spring has the baffle with apron bottom rigid coupling, and the crochet hook is placed one side that the board kept away from the backup pad and is installed the joint board with housing inside wall rigid coupling, and crochet hook end joint groove has been seted up at the top of joint board, and the crochet hook holding tank has been seted up to the bottom in crochet hook end joint groove, and the guide way has been seted up to the both sides inside wall of housing, and the guide way activity cup joints the connecting rod of placing the board rigid coupling with the crochet hook.

Preferably, screw rod fixture includes the direction passageway that sets up along backup pad length direction, and the direction passageway is close to the crochet hook and places the push pedal that the board was cup jointed to one side opening part slip of T type structure, and the one side intermediate position that the direction passageway was kept away from in the push pedal has seted up the crochet hook stable trough, and the one side both ends that the crochet hook was kept away from in the push pedal was placed the board are articulated to have a pull rod, and the other end of pull rod articulates there is the clamp splice with backup pad sliding connection, and the clamp splice is along backup pad width direction sliding connection, and the one end rigid coupling that the push pedal stretched into to the direction passageway has pushing mechanism.

Preferably, pushing mechanism includes the pillar with the fixed cup joint of push pedal, and the one end that the push pedal was kept away from to the pillar slides and has cup jointed the sleeve, and the one end rigid coupling that the push pedal was kept away from to the sleeve has the pulling dish that is located the backup pad outside, and the pillar stretches into telescopic one end and installs the second spring with the sleeve rigid coupling, and telescopic outer lane rigid coupling has the latch, and the butt joint groove that sets up along its length direction is seted up to the both sides inside wall of direction passageway, and latch and butt joint groove joint.

Preferably, the cross section of the crochet hook clamping groove is of a circular arc structure, and the crochet hook clamping groove, the crochet hook stabilizing groove and the power rod are coaxially arranged.

Preferably, the clamping blocks are symmetrically distributed on two sides of the power rod.

Preferably, the guide groove includes the first guiding groove that sets up along power rod length direction, and the one end that the apron was kept away from to first guiding groove is seted up rather than the perpendicular second guiding groove that sets up, and the second guiding groove is located one side that the backup pad was kept away from to first guiding groove.

In the utility model, the water-saving device is provided with a water-saving valve,

through the backup pad that sets up, crochet hook fixture, screw rod fixture, the board is placed to the crochet hook, the guiding groove, the crochet hook stretches into the groove, crochet hook end standing groove, the crochet hook draw-in groove, the housing, the apron, the spout, the movable block, the extension board, first spring, the baffle, the power pole, the joint board, end joint groove, crochet hook holding tank, the direction passageway, the push pedal, the pull rod, the clamp splice, crochet hook stabilizing groove and pushing mechanism, make this design can realize the normal operation of taking out of lag screw, can also adopt blade main part crochet hook to take out the operation simultaneously when lag screw is cracked, make things convenient for medical personnel to carry out lag screw and take out the operation, improve operation efficiency, reduce medical personnel's intensity of labour.

Drawings

Fig. 1 is a schematic structural view of a helical blade removing tool according to the present invention;

fig. 2 is a partially enlarged schematic structural view of the helical blade removing tool according to the present invention;

fig. 3 is a schematic structural view of the screw clamping mechanism of the helical blade removing tool of the present invention.

In the figure: the device comprises a support plate 1, a crochet hook clamping mechanism 2, a screw rod clamping mechanism 3, a crochet hook placing plate 21, a guide groove 22, a crochet hook extending groove 23, a crochet hook end placing groove 24, a crochet hook clamping groove 25, a encloser 26, a cover plate 27, a sliding groove 28, a movable block 29, an extension plate 210, a first spring 211, a baffle 212, a power rod 213, a clamping plate 214, a clamping groove 215 end, a crochet hook retaining groove 216, a guide channel 31, a push plate 32, a pull rod 33, a clamping block 34, a crochet hook stabilizing groove 35 and a pushing mechanism 36.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the spiral blade taking-out tool comprises a support plate 1, wherein a crochet hook clamping mechanism 2 is installed on one side of the top of the support plate 1, and a screw rod clamping mechanism 3 is installed at the bottom of the crochet hook clamping mechanism 2;

further, the crochet hook clamping mechanism 2 comprises a crochet hook placing plate 21 fixedly connected with the top of the support plate 1, one side of the crochet hook placing plate 21 far away from the support plate 1 is provided with a guide groove 22, a crochet hook extending groove 23 recessed towards the interior of the crochet hook placing plate 21 is arranged below the bottom of the guide groove 22, the top of the crochet hook extending groove 23 starts to be provided with a crochet hook end placing groove 24, the bottom of the crochet hook end placing groove 24 is penetrated with a crochet hook clamping groove 25 at the bottom of the crochet hook placing plate 21, one end of the crochet hook placing plate 21 far away from the support plate 1 is slidingly sleeved with a U-shaped cover 26, the top opening of the cover 26 is fixedly connected with a cover plate 27, the cover plate 27 is penetrated with a sliding groove 28 with a cross-shaped cross section, the interior of the sliding groove 28 is slidingly sleeved with a movable block 29, the interior of the movable block 29 is fixedly sleeved with a power rod 213, the power rod 213 is fixedly connected with the top of the crochet hook placing plate 21, the bottom of the movable block 29 is fixedly sleeved with an extension plate 210, one side rigid coupling that housing 26 was kept away from to extension plate 210 has first spring 211, the other end rigid coupling of first spring 211 has the baffle 212 with apron 27 bottom rigid coupling, the crochet hook is placed board 21 and is kept away from one side of backup pad 1 and install the joint board 214 with housing 26 inside wall rigid coupling, crochet hook end joint groove 215 has been seted up at the top of joint board 214, crochet hook holding groove 216 has been seted up to crochet hook end joint groove 215's bottom, the guide way has been seted up to the both sides inside wall of housing 26, the guide way activity cup joints the connecting rod of placing board 21 rigid coupling with the crochet hook.

Specifically, screw rod fixture 3 includes the direction passageway 31 that sets up along 1 length direction of backup pad, the push pedal 32 that T type structure was cup jointed in the slip of one side opening part that direction passageway 31 was close to the crochet hook and placed board 21, crochet hook stable trough 35 has been seted up to one side intermediate position that direction passageway 31 was kept away from to push pedal 32, one side both ends that board 21 was placed to the crochet hook are kept away from to push pedal 32 are articulated to have pull rod 33, the other end of pull rod 33 articulates there is the clamp splice 34 with 1 sliding connection of backup pad, and clamp splice 34 is along 1 width direction sliding connection of backup pad, the one end rigid coupling that push pedal 32 stretched into to direction passageway 31 has pushing mechanism 36.

Particularly, the pushing mechanism 36 includes a pillar fixedly sleeved with the push plate 32, a sleeve is slidably sleeved at one end of the pillar far away from the push plate 32, a pulling disc located outside the support plate 1 is fixedly connected to one end of the sleeve far away from the push plate 32, a second spring fixedly connected with the sleeve is installed at one end of the pillar extending into the sleeve, a latch is fixedly connected to an outer ring of the sleeve, a butt-joint groove arranged along the length direction of the inner side wall of the two sides of the guide channel 31 is formed in the inner side wall of the two sides of the guide channel 31, and the latch is clamped with the butt-joint groove.

It should be noted that the cross section of the bearded needle slot 25 is a circular arc structure, and the bearded needle slot 25, the bearded needle stabilizing slot 35 and the power rod 213 are coaxially arranged.

In addition, the clamping blocks 34 are symmetrically distributed on both sides of the power rod 213.

Besides, the guide groove comprises a first guide groove arranged along the length direction of the power rod 213, one end of the first guide groove far away from the cover plate 27 is provided with a second guide groove arranged perpendicular to the first guide groove, and the second guide groove is positioned on one side of the first guide groove far away from the support plate 1.

The working principle is as follows: when a pair of lag screws are normally clamped and taken out, a pull disc on a pushing mechanism 36 is moved towards the direction far away from a push plate 32, so that clamping teeth on a sleeve are not in butt joint with butt joint grooves in a guide channel 31, the end parts of the lag screws are placed between two groups of clamping blocks 34, the pull disc is pushed to move towards the upper part of a supporting plate 1, the push plate 32 moves upwards, a pull rod 33 drives the two groups of clamping blocks 34 to move towards mutually close positions, the lag screws are clamped, the pull disc is loosened after clamping, the sleeve moves towards the direction of the push plate 32 under the action of a second spring, the clamping teeth are clamped with the butt joint grooves, the push plate 32 is fixed, and then a power rod 213 is installed on a device for driving the power rod to rotate, so that the lag screws are taken out;

when the lag screw is broken and the needs to be taken out by using the blade main body crochet hook, firstly implanting the blade main body crochet hook into the broken lag screw according to the operation, then installing the above-mentioned opposite step operation of normal clamping and taking out of the pair of lag screws, so that the two groups of clamping blocks 34 move towards the direction away from each other, when the crochet hook is clamped, firstly pushing the housing 26 towards the direction away from the support plate 1, the connecting rod on the crochet hook placing plate 21 moves towards the direction of the first guide groove along the second guide groove, at this time, the housing 26 and the crochet hook placing plate 21 move towards the positions away from each other, then pushing the housing 26 upwards, so that the clamping plate 214 moves upwards, the crochet hook on the crochet hook placing plate 21 extends into the groove 23, the crochet hook end placing groove 24 and the crochet hook clamping groove 25 to leak out, then the end of the crochet hook extends into the crochet hook extending into the groove 23, so that the needle body of the crochet hook is clamped on the crochet hook clamping groove 25, bearded needle end standing groove 24 that crochet hook tip joint is in, place board 21 rotation for the relative crochet hook of crochet hook in the centre gripping in order to avoid the crochet hook, crochet hook end cross section is regular polygon structure, and crochet hook end standing groove 24 and crochet hook end are to the adaptation, later install above-mentioned opposite mode operation, with 24 joints of joint board on housing 26 on the crochet hook, the normal operation of taking out of lag screw can be realized in this design, can also adopt blade main part crochet hook to take out the operation simultaneously in lag screw fracture, make things convenient for medical personnel to carry out lag screw and take out the operation, the operation efficiency is improved, the labor intensity of medical personnel is reduced.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The spiral blade taking-out tool comprises a supporting plate (1) and is characterized in that a crochet hook clamping mechanism (2) is installed on one side of the top of the supporting plate (1), and a screw rod clamping mechanism (3) is installed at the bottom of the crochet hook clamping mechanism (2);

the crochet hook clamping mechanism (2) comprises a crochet hook placing plate (21) fixedly connected with the top of the support plate (1), one side, far away from the support plate (1), of the crochet hook placing plate (21) is provided with a guide groove (22), a crochet hook extending groove (23) sunken into the crochet hook placing plate (21) is formed below the bottom of the guide groove (22), the top of the crochet hook extending groove (23) is provided with a crochet hook end placing groove (24), the bottom of the crochet hook end placing groove (24) is penetrated with a crochet hook clamping groove (25) at the bottom of the crochet hook placing plate (21), one end, far away from the support plate (1), of the crochet hook placing plate (21) is slidably sleeved with a cover shell (26) of a U-shaped structure, a cover plate (27) is fixedly connected with the top opening of the cover shell (26), a sliding groove (28) with a cross-shaped structure is penetrated through the cover plate (27), and a movable block (29) is slidably sleeved inside the sliding groove (28), the interior of the movable block (29) is fixedly sleeved with a power rod (213), the power rod (213) is fixedly connected with the top of the crochet hook placing plate (21), the bottom of the movable block (29) is fixedly connected with an extension plate (210) fixedly sleeved with a power rod (213), one side rigid coupling that housing (26) was kept away from in extension board (210) has first spring (211), the other end rigid coupling of first spring (211) have with apron (27) bottom rigid coupling baffle (212), the crochet hook is placed board (21) and is kept away from one side of backup pad (1) and install joint board (214) with housing (26) inside wall rigid coupling, crochet hook end joint groove (215) have been seted up at the top of joint board (214), crochet hook holding groove (216) have been seted up to the bottom of crochet hook end joint groove (215), the guide way has been seted up to the both sides inside wall of housing (26), the guide way activity cup joints the connecting rod of placing board (21) rigid coupling with the crochet hook.

2. The spiral blade taking-out tool is characterized in that the screw clamping mechanism (3) comprises a guide channel (31) arranged along the length direction of the support plate (1), a push plate (32) of a T-shaped structure is sleeved at an opening of one side, close to the crochet needle placing plate (21), of the guide channel (31) in a sliding mode, a crochet needle stabilizing groove (35) is formed in the middle position of one side, far away from the guide channel (31), of the push plate (32), two ends of one side, far away from the crochet needle placing plate (21), of the push plate (32) are hinged to pull rods (33), the other end of each pull rod (33) is hinged to a clamping block (34) in sliding connection with the support plate (1), the clamping blocks (34) are in sliding connection along the width direction of the support plate (1), and a pushing mechanism (36) is fixedly connected to one end, extending into the guide channel (31), of the push plate (32).

3. The helical blade taking-out tool according to claim 2, wherein the pushing mechanism (36) comprises a pillar fixedly sleeved with the push plate (32), a sleeve is slidably sleeved at one end of the pillar far away from the push plate (32), a pull disc positioned outside the support plate (1) is fixedly connected at one end of the sleeve far away from the push plate (32), a second spring fixedly connected with the sleeve is installed at one end of the pillar extending into the sleeve, a latch is fixedly connected with an outer ring of the sleeve, butt-joint grooves arranged along the length direction of the butt-joint grooves are formed in inner side walls of two sides of the guide channel (31), and the latch is clamped with the butt-joint grooves.

4. The helical blade removal tool as set forth in claim 1, wherein the bearded needle catching groove (25) has a circular arc-shaped cross section, and the bearded needle catching groove (25) is coaxially disposed with the bearded needle stabilizing groove (35) and the power rod (213).

5. Screw blade extraction tool according to claim 2, wherein the clamping blocks (34) are symmetrically distributed on both sides of the power rod (213).

6. The screw blade removing tool according to claim 1, wherein the guide groove comprises a first guide groove provided along the length of the power rod (213), and one end of the first guide groove remote from the cover plate (27) is provided with a second guide groove provided perpendicular thereto, and the second guide groove is located on the side of the first guide groove remote from the support plate (1).