Surgical retractor

Abstract

The utility model relates to a surgical retractor in the technical field of surgical retractor equipment. Comprising a drag hook assembly, an adjusting device used for limiting the drag hook assembly is installed at one end of the drag hook assembly, a limiting device used for controlling the adjusting device to move is installed at the upper end of the adjusting device, and the drag hook assembly comprises a drag hook; the upper end of the drag hook is provided with a locking assembly which is matched with the first clamping block to rapidly lock the drag hook. When a pull hook assembly is installed at the lower end of a first connecting rod, a first positioning rod is inserted into a hole cavity of a first inserting hole, a first limiting rod is inserted into a hole cavity of a second inserting hole, a limiting block moves to a preset position and then needs to be locked, and when a bent hook is fixed, a pull plate is shifted, so that an arc-shaped plate rotates with a third connecting rod as a rotating shaft, and the bent hook assembly is fixed. And the second clamping block is clamped to the first clamping block, so that the position of the limiting block is fixed, and the hook is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical retractor equipment, in particular to a surgical retractor. Background Art

[0002] Surgical retractors are commonly used in orthopedic surgery and are the most common medical devices in orthopedic surgery. Retractors are often used in orthopedic surgery to open the surgical field of view and ensure the smooth progress of the operation.

[0003] For example, a surgical retractor disclosed in Chinese patent application number CN202220183419.5 has the following specific contents: a group of evenly arranged threaded holes are respectively provided on one of the support shafts, a limit block is respectively fixedly connected to one side of each of the moving blocks, each of the limit blocks is respectively penetrated by a bolt, and each of the bolts can be threadedly connected to the corresponding threaded hole, which has the following technical problems:

[0004] When the retractor needs to be fixed, the moving block needs to be rotated by means of bolts, which is a complicated operation and it is difficult for medical staff to quickly fix the moving block. Utility Model Content

[0005] In order to solve the problem that it is difficult to quickly fix the moving block proposed in the above background technology, the utility model provides the following technical solutions:

[0006] A surgical retractor, comprising a retractor assembly;

[0007] An adjusting device for limiting the position of the hook assembly is installed at one end of the hook assembly, and a limiting device for controlling the movement of the adjusting device is installed at the upper end of the adjusting device.

[0008] The adjustment device includes a first adjustment component and a second adjustment component. The first adjustment component includes a T-shaped sliding rod. A connecting rod is installed inside the T-shaped sliding rod for adjusting the height of a pair of hook assemblies in cooperation with the T-shaped sliding rod. A baffle is installed in the middle of the connecting rod for limiting the second adjustment component.

[0009] A positioning rod and a limiting rod are installed at the lower end of the connecting rod, and a limiting groove is provided on one side of the limiting rod. A clamping block is installed on one side of the limiting groove for locking the hook assembly.

[0010] The hook assembly comprises a hook, and a locking assembly is installed on the upper end of the hook to cooperate with a clamping block to quickly lock the hook.

[0011] Furthermore, the limiting device includes a mounting base plate, a fixing plate for limiting the first adjusting component and the second adjusting component is installed at the lower end of the mounting base plate, a reciprocating screw for controlling the movement of the first adjusting component and the second adjusting component is installed inside the fixing plate, and the movement directions of the first adjusting component and the second adjusting component are opposite, and a rotating rod for controlling the rotation of the reciprocating screw is installed in the middle of the reciprocating screw.

[0012] Furthermore, positioning holes for limiting the baffle plate are provided at the front and rear sides of the connecting rod 1, and a limiting hole is provided in the middle of the baffle plate.

[0013] Furthermore, the second adjustment component includes a T-shaped sliding rod 2, and a connecting rod 2 for telescoping inside the T-shaped sliding rod 2 is installed at the lower end of the T-shaped sliding rod 2.

[0014] Furthermore, an L-shaped plug rod is installed at the lower end of the connecting rod 2 for cooperating with the connecting rod one to limit the connecting rod 2, and the L-shaped plug rod is extended and retracted in the groove cavity of the limiting hole. A positioning rod 2 and a limiting rod 2 are installed at the lower end of the connecting rod 2 for limiting the pull hook, and the structure of the limiting rod 2 and the limiting rod 1 is the same.

[0015] Furthermore, the pull hook includes a curved hook, one end of which is equipped with a limit block for limiting the curved hook, the lower end of the limit block is provided with a socket one for allowing a positioning rod to be extended and retracted, the upper end of the limit block is provided with a socket two for allowing a limiting rod to be extended and retracted, and the upper end of the limit block is provided with a limit groove two for allowing a locking assembly to rotate.

[0016] Furthermore, the locking assembly includes an arc-shaped plate, one end of which is equipped with a connecting rod three for cooperating with a limit block to limit the arc-shaped plate, one side of the arc-shaped plate is equipped with a pulling plate for facilitating pulling the arc-shaped plate, and the other side of the arc-shaped plate is equipped with a clamping block two for engaging with the clamping block one.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] When the pull hook assembly is installed on the lower end of the connecting rod one, the positioning rod one is inserted into the hole cavity of the socket one, and the limiting rod one is inserted into the hole cavity of the socket two. When the limiting block moves to the predetermined position and needs to be locked, when the curved hook is fixed, the pull plate is moved to make the arc plate rotate with the connecting rod three as the axis, so that the clamping block two is engaged with the clamping block one, so as to fix the position of the limiting block and make the curved hook more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the surgical retractor of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the limit device of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the regulating device of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the first adjustment component of the utility model;

[0023] Figure 5 For this utility model Figure 4 A magnified image of point A;

[0024] Figure 6 It is a structural schematic diagram of the second adjustment component of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the hook assembly of the utility model;

[0026] Figure 8 It is a structural schematic diagram of the utility model draw hook;

[0027] Fig. 9 It is a structural schematic diagram of the locking assembly of the utility model.

[0028] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0029] 001-Limiting device;

[0030] 100-mounting base plate, 110-fixed plate, 120-reciprocating screw rod, 121-rotating rod;

[0031] 002-Adjustment device;

[0032] 200-first adjustment component, 210-T-shaped sliding rod, 220-connecting rod, 221-positioning hole, 222-positioning rod, 223-limiting rod, 224-limiting groove, 225-block, 230-baffle, 231-limiting hole;

[0033] 300 - second adjustment assembly, 310 - second T-shaped sliding rod, 320 - second connecting rod, 321 - L-shaped plug rod, 322 - second positioning rod, 323 - second limiting rod;

[0034] 003- retractor assembly;

[0035] 400- draw hook, 410- bend hook, 420- limit block, 421- socket 1, 422- socket 2, 423- limit slot 2;

[0036] 500-locking assembly, 510-arc plate, 511-connecting rod three, 512-pull plate, 513-block two. DETAILED DESCRIPTION

[0037] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0038] See also Figure 1-Figure 9 The utility model provides a surgical retractor, comprising a limiting device 001, an adjusting device 002 and a retractor assembly 003.

[0039] The limiting device 001 is installed at the upper end of the adjusting device 002, and is used to control the adjusting device 002 to move left and right. The limiting device 001 includes a mounting base plate 100, and a fixing plate 110 for limiting the first adjusting assembly 200 and the second adjusting assembly 300 is fixedly installed at the lower end of the mounting base plate 100. A reciprocating screw 120 for controlling the movement of the first adjusting assembly 200 and the second adjusting assembly 300 is installed inside the fixing plate 110. The spiral grooves on both sides of the reciprocating screw 120 have opposite rotation directions, so that the first adjusting assembly 200 and the second adjusting assembly 300 move in opposite directions. Sealing covers for closing the reciprocating screw 120 are installed at both ends of the groove cavity of the reciprocating screw 120, and a rotating rod 121 for controlling the rotation of the reciprocating screw 120 is fixedly installed in the middle of the reciprocating screw 120. A rotating rod is movably installed in the middle of the rotating rod 121 on the right side of the reciprocating screw 120, and the rotating rod and the rotating rod 121 are key-connected. A knob is fixedly installed at one end of the rotating rod, so that when the knob is turned, the rotating rod drives the rotating rod 121 to rotate, and then drives the reciprocating screw 120 to rotate, so that the first adjustment component 200 and the second adjustment component 300 are close to or away from each other.

[0040] An adjusting device 002 for limiting the position of the hook assembly 003 is installed at one end of the hook assembly 003, and the adjusting device 002 includes a first adjusting assembly 200 and a second adjusting assembly 300, and the first adjusting assembly 200 and the second adjusting assembly 300 are respectively installed at the left and right ends of the reciprocating screw 120. The first adjusting assembly 200 includes a T-shaped slide rod 1 210, and a screw nut for cooperating with the reciprocating screw 120 to control the first adjusting assembly 200 to move left and right is fixedly installed on the upper end of the T-shaped slide rod 1 210, and a screw nut for cooperating with the reciprocating screw 120 to control the second adjusting assembly 300 to move left and right is synchronously installed on the upper end of the T-shaped slide rod 2 310.

[0041] A connecting rod 220 is movably installed inside the T-shaped slide 210 for adjusting the height of the hook assembly 003 in cooperation with the T-shaped slide 210. A piston is fixedly installed on the top of the connecting rod 220 for moving up and down in the inner cavity of the T-shaped slide 210. The piston is tightly attached to the inner wall of the T-shaped slide 210, so that when the connecting rod 220 moves up and down inside the T-shaped slide 210, the height of the hook assembly 003 can be adjusted.

[0042] A plurality of positioning holes 221 for limiting the baffle plate 230 are provided on the front and rear sides of the connecting rod 1 220. A positioning rod 1 222 and a limiting rod 1 223 for limiting the hook assembly 003 are installed at the lower end of the connecting rod 1 220. A limiting groove 1 224 is provided on one side of the limiting groove 1 224. A plurality of clamping blocks 1 225 for locking the hook assembly 003 are fixedly installed on one side of the limiting groove 1 224. After the clamping blocks 1 225 and the clamping blocks 2 513 are engaged, the hook assembly 003 is locked. A baffle plate 230 for limiting the second adjustment assembly 300 is installed in the middle of the connecting rod 1 220. A limiting hole 231 is provided in the middle of the baffle plate 230. One end of the L-shaped insert rod 321 can be inserted into the groove cavity of the limiting hole 231, so that the first adjustment assembly 200 and the second adjustment assembly 300 can move up and down synchronously.

[0043] When it is necessary to make the height of the hook assembly 003 at the lower end of the first adjustment assembly 200 and the height of the hook assembly 003 at the lower end of the second adjustment assembly 300 not at the same horizontal height, the installation height of the baffle 230 can be adjusted. The baffle 230 is close to the connecting rod 220 and has fixed installation blocks at both ends, which can be inserted into the hole cavity of the positioning hole 221. When the height of the hook assemblies 003 on both sides needs to be adjusted, the baffle 230 is inserted into the positioning holes 221 at different positions, and then the L-shaped plug rod 321 is inserted into the groove cavity of the limiting hole 231, so that the first adjustment assembly 200 and the second adjustment assembly 300 can be moved up and down synchronously to adjust the height of the hook assembly 003.

[0044] The second adjustment component 300 includes a T-shaped slide rod 310, the lower end of which is equipped with a connecting rod 320 for telescopic extension inside the T-shaped slide rod 310, and the top of the connecting rod 320 is fixedly equipped with a piston for moving up and down in the inner cavity of the T-shaped slide rod 310. The piston is close to the inner wall of the T-shaped slide rod 310, so that when the connecting rod 320 moves up and down inside the T-shaped slide rod 310, the height of the hook component 003 can be adjusted. The lower end of the second connecting rod 320 is fixedly installed with an L-shaped plug rod 321 for cooperating with the first connecting rod 220 to limit the second connecting rod 320, and the L-shaped plug rod 321 is extended and retracted in the groove cavity of the limiting hole 231. The lower end of the second connecting rod 320 is fixedly installed with a positioning rod 222 and a limiting rod 2323 for limiting the hook 400, and the structure of the limiting rod 2323 and the limiting rod 1 223 is the same. A limiting groove 1 224 is synchronously opened on one side of the limiting rod 323, and a clamping block 1 225 for engaging with the clamping block 2 513 is installed.

[0045] The hook assembly 003 includes a hook 400, which includes a curved hook 410. A limit block 420 is installed at one end of the curved hook 410 for limiting the curved hook 410. A socket 421 is provided at the lower end of the limit block 420 for the positioning rod 222 to be extended and retracted, and the positioning rod 322 is synchronously extended and retracted in the hole of the socket 421. A socket 422 is provided at the upper end of the limit block 420 for the limiting rod 223 to be extended and retracted, and the limiting rod 323 is synchronously extended and retracted in the hole of the socket 422, so as to adjust the installation position of the curved hook 410. A limit groove 423 is provided at the upper end of the limit block 420 for the locking assembly 500 to rotate.

[0046] A locking assembly 500 is installed at the upper end of the hook 400 to cooperate with the clamping block 225 to quickly lock the hook 400. The locking assembly 500 includes an arc plate 510, and a connecting rod three 511 is fixedly installed at one end of the arc plate 510 to cooperate with the limiting block 420 to limit the arc plate 510, and a hole cavity for limiting the connecting rod three 511 is opened at the upper end of the groove cavity of the limiting groove two 423, so that the connecting rod three 511 can rotate in the hole cavity. When the connecting rod three 511 rotates, it drives the clamping block two 513 away from or close to the clamping block one 225.

[0047] When the pull hook assembly 003 is installed on the lower end of the connecting rod 220, the positioning rod 222 is inserted into the hole of the socket 421, and the limiting rod 223 is inserted into the hole of the socket 422. When the limiting block 420 moves to the predetermined position and needs to be locked, the curved hook 410 is fixed by moving the pull plate 512 to make the arc plate 510 rotate around the connecting rod 3 511 as the axis, so that the clamping block 2 513 is engaged with the clamping block 1 225 to fix the position of the limiting block 420 and make the curved hook 410 more stable. A pull plate 512 is installed on one side of the curved plate 510 to facilitate pulling the curved plate 510. When the clamping state of the clamping block 2 513 and the clamping block 1 225 needs to be released When the pull plate 512 is pulled, the block 2 513 can be moved away from the block 1 225, so that the limit block 420 can be unlocked, so that the limit block 420 can slide on the rod body of the positioning rod 1 222 and the limit rod 1 223, so as to facilitate the position adjustment and installation and disassembly of the hook assembly 003. The other side of the arc plate 510 is equipped with a block 2513 for engaging with the block 1 225. A magnetic block a is installed inside the end of the arc plate 510 close to the block 2 513, and a magnetic block b is installed inside the end of the limit rod 1 223 close to the block 1 225. The magnetic blocks a and b attract each other, so that the block 2 513 and the block 1 225 can be quickly engaged and the engagement is relatively stable and not easy to loosen.

[0048] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A surgical retractor, comprising a retractor assembly (003), characterized in that: An adjusting device (002) for limiting the position of the hook assembly (003) is installed at one end of the hook assembly (003), and a limiting device (001) for controlling the movement of the adjusting device (002) is installed at the upper end of the adjusting device (002); The adjusting device (002) comprises a first adjusting component (200) and a second adjusting component (300), wherein the first adjusting component (200) comprises a T-shaped sliding rod (210), a connecting rod (220) for adjusting the height of the hook assembly (003) in cooperation with the T-shaped sliding rod (210) is installed inside the T-shaped sliding rod (210), and a baffle (230) for limiting the position of the second adjusting component (300) is installed in the middle of the connecting rod (220); A positioning rod (222) and a limiting rod (223) for limiting the position of the hook assembly (003) are installed at the lower end of the connecting rod (220); a limiting groove (224) is provided on one side of the limiting groove (224); and a clamping block (225) for locking the hook assembly (003) is installed on one side of the limiting groove (224); The hook assembly (003) comprises a hook (400), and a locking assembly (500) is installed at the upper end of the hook (400) for quickly locking the hook (400) in cooperation with a clamping block (225).

2. A surgical retractor according to claim 1, characterized in that: The limiting device (001) comprises a mounting base plate (100), a fixing plate (110) for limiting the first adjusting component (200) and the second adjusting component (300) being mounted at the lower end of the mounting base plate (100), a reciprocating screw (120) for controlling the movement of the first adjusting component (200) and the second adjusting component (300) being mounted inside the fixing plate (110), and the movement directions of the first adjusting component (200) and the second adjusting component (300) are opposite, and a rotating rod (121) for controlling the rotation of the reciprocating screw (120) is mounted in the middle of the reciprocating screw (120).

3. A surgical retractor according to claim 1, characterized in that: The front and rear sides of the connecting rod 1 (220) are provided with positioning holes (221) for facilitating the limiting of the baffle plate (230), and the middle part of the baffle plate (230) is provided with a limiting hole (231).

4. A surgical retractor according to claim 3, characterized in that: The second adjustment assembly (300) comprises a second T-shaped sliding rod (310), and a second connecting rod (320) for telescoping inside the second T-shaped sliding rod (310) is installed at the lower end of the second T-shaped sliding rod (310).

5. A surgical retractor according to claim 4, characterized in that: The lower end of the second connecting rod (320) is installed with an L-shaped plug rod (321) for cooperating with the first connecting rod (220) to limit the second connecting rod (320), and the L-shaped plug rod (321) is extended and retracted in the groove cavity of the limiting hole (231). The lower end of the second connecting rod (320) is installed with a positioning rod (322) and a limiting rod (323) for limiting the hook (400), and the structure of the limiting rod (323) and the limiting rod (223) is the same.

6. A surgical retractor according to claim 1, characterized in that: The pull hook (400) comprises a curved hook (410), one end of which is provided with a limit block (420) for limiting the curved hook (410), the lower end of the limit block (420) is provided with a socket 1 (421) for allowing a positioning rod 1 (222) to be extended and retracted, the upper end of the limit block (420) is provided with a socket 2 (422) for allowing a limiting rod 1 (223) to be extended and retracted, and the upper end of the limit block (420) is provided with a limit groove 2 (423) for allowing the locking assembly (500) to rotate.

7. A surgical retractor according to claim 6, characterized in that: The locking assembly (500) comprises an arc-shaped plate (510), one end of which is provided with a connecting rod three (511) for cooperating with a limiting block (420) to limit the arc-shaped plate (510), one side of the arc-shaped plate (510) is provided with a pulling plate (512) for facilitating pulling of the arc-shaped plate (510), and the other side of the arc-shaped plate (510) is provided with a clamping block two (513) for clamping with a clamping block one (225).

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