Retractor

Abstract

The utility model relates to the technical field of medical instruments, and discloses a retractor which comprises a handheld handle, a sliding groove is formed in the handheld handle, a sliding block is connected in the sliding groove in a sliding mode, a first connecting rod is fixedly connected to the top of the sliding block, a first hook is fixedly connected to the tail of the first connecting rod, and a second hook is fixedly connected to the tail of the first connecting rod. A rack is arranged in the handheld handle, the tail of the rack is fixedly connected with a second connecting rod, the tail of the second connecting rod is fixedly connected with a second hook, and the tail of the handheld handle is fixedly connected with a third hook. The position of the connecting rod can be adjusted, the connecting rod is used for fixing the positions of the drag hooks, the multiple drag hooks are used for forming multi-point-position supporting, the surgery exposure range is widened, and the problem that the action range of a two-point-position retractor is not ideal in the current surgery process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a retractor. BACKGROUND

[0002] The retractor is a kind of medical instrument, also called drag hook, to open up tissue, reveal the range needing operation, facilitate exploration and operation, can be divided into hand-held drag hook and automatic drag hook two categories.There are various different shapes and sizes specifications, can select appropriate drag hook according to operation needs.

[0003] The retractor currently used includes hand-held handle, connector and drag hook etc.Structure, can pivot as axis, controls two drag hooks back to move, to complete supporting operation, but the two-point position support provided reveal vision is not ideal, for this, we propose a retractor. UTILITY MODEL CONTENT

[0004] In view of the deficiency that the two-point retractor in prior art is not ideal in the range of operation, the utility model provides a retractor, which has the advantages of multi-point support.

[0005] To achieve the above object, the utility model provides the following technical scheme: a retractor, including hand-held handle, the inside of hand-held handle is equipped with sliding slot, the inside of sliding slot is connected with sliding block that slides, the top of sliding block is fixedly connected with first connecting rod, the tail of first connecting rod is fixedly connected with hook one, the inside of hand-held handle is provided with rack, the tail of rack is fixedly connected with second connecting rod, the tail of second connecting rod is fixedly connected with hook two, the tail of hand-held handle is fixedly connected with hook three.

[0006] Preferably, the outside of the sliding block is fixedly connected with a limiting rod, and the limiting rod is threadedly connected with a fastening nut.

[0007] Preferably, the outside of the hand-held handle is provided with a knob, the back of the knob is fixedly connected with a worm, the outside of the worm is meshingly connected with a worm wheel, the inside of the worm wheel is fixedly connected with a rotating shaft, the outside of the rotating shaft is fixedly connected with a gear, and the gear is meshingly connected with the rack.

[0008] Preferably, the top of the hand-held handle is provided with a through slot corresponding to the sliding block, and the sliding block is slidingly connected in the inside of the slot.

[0009] Preferably, the rack is provided with two, the inside of the hand-held handle is provided with a limiting slot corresponding to the rack, the rack is slidingly connected in the inside of the limiting slot, the second connecting rod is provided with two corresponding to the rack, and the hook two is provided in the two corresponding to the second connecting rod, and the hook two can be driven to move by controlling the knob.

[0010] Preferably, the length of the limiting rod is greater than the width of the handle, and the limiting rod is provided with threaded structure corresponding to the fastening nut at both ends, and the fastening nut can be pressed against the handle to fix the position of the limiting rod.

[0011] Preferably, the gear is provided with two, and the rotating shaft is rotatably connected to the inside of the handle.

[0012] Beneficial effects:

[0013] 1. The retractor can fix the position of the connecting rod through the handle, and the position of the connecting rod can be adjusted, the position of the hook can be fixed through the connecting rod, and multiple hooks are used to form multi-point support, thereby improving the surgical exposure range.

[0014] 2. The retractor can form self-locking through the worm and the worm gear structure, so that the position of the second hook can be fixed through the self-locking action after the adjustment of the position of the second hook is completed, the deviation of the second hook after the adjustment of the position of the second hook is completed is avoided, the influence on the surgical process is avoided, and the stability during the surgical process is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a limiting rod structure schematic view of the utility model;

[0017] Figure 3 It is a second hook structure schematic view of the utility model;

[0018] Figure 4 It is a worm gear structure schematic view of the utility model.

[0019] In the figure: 1, handle; 2, sliding groove; 3, sliding block; 4, first connecting rod; 5, hook one; 6, rack; 7, second connecting rod; 8, hook two; 9, hook three; 10, limiting rod; 11, fastening nut; 12, knob; 13, worm; 14, worm gear; 15, rotating shaft; 16, gear. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only 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 those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Embodiment one

[0022] Please refer to Figures 1-4The utility model provides a retractor, including hand handle 1, the inside of hand handle 1 is opened with sliding slot 2, the inside sliding connection of sliding slot 2 has sliding block 3, the top of sliding block 3 is fixedly connected with first connecting rod 4, the tail of first connecting rod 4 is fixedly connected with hook one 5, the inside of hand handle 1 is provided with rack 6, the tail of rack 6 is fixedly connected with second connecting rod 7, the tail of second connecting rod 7 is fixedly connected with hook two 8, the tail of hand handle 1 is fixedly connected with hook three 9.

[0023] Wherein, the top of hand handle 1 is provided with the through slot body corresponding with sliding block 3, sliding block 3 is slidably connected in the inside of slot body, the outside of sliding block 3 is fixedly connected with limiting rod 10, the outside of limiting rod 10 is threadedly connected with fastening nut 11.

[0024] Wherein, rack 6 is provided with two, the inside of hand handle 1 is opened with the limiting slot body corresponding with rack 6, rack 6 is slidably connected in the inside of limiting slot body, second connecting rod 7 is provided with two corresponding with rack 6, hook two 8 is set up in the two corresponding of second connecting rod 7, hook two 8 can be driven to move by control knob 12.

[0025] Wherein, the length of limiting rod 10 is greater than the width of hand handle 1, the both ends of limiting rod 10 are opened with the screw structure corresponding with fastening nut 11, fastening nut 11 can be extruded with hand handle 1 to fix the position of limiting rod 10.

[0026] Wherein, gear 16 is provided with two, shaft 15 is rotatably connected in the inside of hand handle 1, shaft 15 can rotate.

[0027] Working principle: when the retractor is used, the position of hand handle 1 is adjusted by hook three 9, fastening nut 11 is adjusted, so that sliding block 3 can move in the inside of sliding slot 2, to adjust the position of hook one 5, then control knob 12 is rotated, to drive worm 13 to rotate, so that worm wheel 14 can drive gear 16 to rotate, further drive the two hook two 8 arranged to complete the position adjustment, with the position of hook three 9 as the base point, to the position of hook two 8 and hook three 9 is expanded, forms the visual field, in this process, hand handle 1 can fix and adjust the position of connecting rod, uses connecting rod to fix the position of drag hook, uses multiple drag hooks to form multiple point supports, improves the operation exposure range.

[0028] Embodiment two

[0029] Please refer to Figures 1-4 , on the basis of embodiment one further, the outside of hand handle 1 is provided with knob 12, the back of knob 12 is fixedly connected with worm 13, the outside of worm 13 is engagedly connected with worm wheel 14, the inside of worm wheel 14 is fixedly connected with shaft 15, the outside of shaft 15 is fixedly connected with gear 16, gear 16 is engagedly connected with rack 6.

[0030] Working principle: when the retractor is used, self-locking can be formed through the worm gear 14 and the worm 13 structure, the position of the hook 8 can be adjusted, and the position of the hook 8 can be fixed through the self-locking effect after the adjustment of the position of the hook 8 is completed, so that deviation of the hook 8 after the adjustment of the position of the hook 8 is completed is avoided, the influence on the operation process is avoided, and the stability in the operation process is improved.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A retractor comprising a hand grip (1), characterized in that: The inside of the handheld handle (1) is provided with a sliding groove (2), the inside of the sliding groove (2) is slidably connected with a sliding block (3), the top of the sliding block (3) is fixedly connected with a first connecting rod (4), the tail of the first connecting rod (4) is fixedly connected with a hook one (5), the inside of the handheld handle (1) is provided with a rack (6), the tail of the rack (6) is fixedly connected with a second connecting rod (7), the tail of the second connecting rod (7) is fixedly connected with a hook two (8), the tail of the handheld handle (1) is fixedly connected with a hook three (9).

2. A retractor according to claim 1, wherein: The outside of the sliding block (3) is fixedly connected with a limiting rod (10), the outside of the limiting rod (10) is threadedly connected with a fastening nut (11).

3. A retractor according to claim 1, wherein: The outside of the handheld handle (1) is provided with a knob (12), the back of the knob (12) is fixedly connected with a worm (13), the outside of the worm (13) is meshingly connected with a worm wheel (14), the inside of the worm wheel (14) is fixedly connected with a rotating shaft (15), the outside of the rotating shaft (15) is fixedly connected with a gear (16), the gear (16) is meshingly connected with the rack (6).

4. The retractor of claim 1, wherein: The top of the handheld handle (1) is provided with a through slot corresponding to the sliding block (3), and the sliding block (3) is slidably connected in the inside of the slot.

5. The retractor of claim 1, wherein: The rack (6) is provided with two, the inside of the handheld handle (1) is provided with a limiting slot corresponding to the rack (6), the rack (6) is slidably connected in the inside of the limiting slot, the second connecting rod (7) is provided with two corresponding to the rack (6), and the hook two (8) is provided in the two corresponding second connecting rods (7).

6. A retractor according to claim 2, wherein: The length of the limiting rod (10) is greater than the width of the handheld handle (1), and the two ends of the limiting rod (10) are provided with a threaded structure corresponding to the fastening nut (11).

7. A retractor according to claim 3, wherein: The gear (16) is provided with two, and the rotating shaft (15) is rotatably connected in the inside of the handheld handle (1).

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