Distraction device for anterior cervical surgery

Abstract

An anterior cervical surgery dilator relates to the field of surgical instruments and comprises a dilator body and a tissue partition plate, and teeth are uniformly arrayed on the front side and the rear side of a pile nail socketed pipe of the dilator body respectively; the two tissue partition plates are movably arranged on the front face and the rear face of the pile nail sleeving pipe respectively, and embedding strips corresponding to tooth gaps are arranged on the tissue partition plates. The utility model has the advantages of simple structure, convenience in use and easiness in popularization. Manpower is saved, range control is accurate, and surgical operation of a main knife is facilitated; particularly, an assistant does not need to continuously pull the tissue by using a drag hook in an operation; the number of operators participating in the operation is reduced, and the risk of operation infection is correspondingly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to surgical instruments field especially relates to a cervical vertebra anterior approach operation distraction device. BACKGROUND

[0002] Cervical vertebra anterior approach operation is the common surgical technique for cervical spondylosis, cervical spinal stenosis and other diseases, in the operation process, need to drive pile on adjacent cervical vertebra, then use distraction device to connect pile, and use distraction device to distract adjacent cervical vertebra, and then remove intervertebral disc.

[0003] However, in the operation process, due to the shielding of anterior cervical trachea, esophagus, carotid sheath, long muscle of neck and sternocleidomastoid muscle and other tissues, the above-mentioned tissues need to be pulled to the paravertebral by the assistant using the retractor to expose the surgical field. Because the operation time is long, the assistant needs to pull continuously during the operation, and the pulling force is required to be large, and the pulling force of the above-mentioned tissues during the pulling process is completely controlled by the assistant, which has the disadvantage of large artificial physical consumption. Especially as the operation time increases, it becomes more and more difficult to control the pulling force artificially, and it is common to pull the tissue too much to cause postoperative complications such as sore throat, dysphagia and hoarseness, which causes unnecessary pain to the patient. At the same time, the pulling process requires precise control of the pulling range to maintain a constant surgical field, but due to the long-term physical consumption, the assistant cannot always maintain the initial pulling action, which leads to the change of the operation field and affects the operation of the main doctor, and the compression injury of the above-mentioned tissues caused by the change of the position of the retractor is also a common accident during the operation.

[0004] Especially, at least two assistants are needed to pull the above-mentioned tissues on both sides of the cervical vertebra, which causes unnecessary surgical infection risk and waste of medical resources. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the defects of the prior art, and provides a cervical vertebra anterior approach operation distraction device which is simple in structure, convenient to operate, can save manpower and improve the safety of operation.

[0006] The device comprises a distraction device main body and a tissue partition plate;

[0007] The distraction device main body comprises a rack, a fixed base is arranged at one end of the rack, a vernier base is arranged on the rack in a sliding manner, a sliding drive button and a position locking member are further arranged on the vernier base, pile sleeve pipes are further arranged on the fixed base and the vernier base respectively, that is, the distraction device main body is a surgical distraction device in the prior art;

[0008] The edge transition of the pile sleeve pipe is smooth, and the teeth are uniformly arranged on the front and back of the pile sleeve pipe.

[0009] The tissue partition plate is movably arranged on the front and back of the pile sleeve pipe, and the matching strip corresponding to the tooth gap is arranged on the tissue partition plate.

[0010] The effect achieved is that the pile is punched on the adjacent cervical vertebra, the pile sleeve pipe is sleeved on the pile and is expanded, the tissue partition plate is arranged on the front and back of the pile sleeve pipe after expansion, the tooth gap on the front and back of the pile sleeve pipe is matched with the matching strip on the tissue partition plate, and the height of the tissue partition plate is fixed.

[0011] The utility model discloses the beneficial effects are:

[0012] 1. Save manpower, that is, without the assistant continuous use of the drag hook to pull the tissue, and because the personnel participating in the operation is reduced, the risk of operation infection is reduced.

[0013] 2. Range control is accurate, and the drag hook is not easy to slip, and the operation is safer.

[0014] 3. After in-situ adjustment, stable operation visual field can be maintained, and the operation of the main operator is facilitated.

[0015] 4. Simple structure, convenient to use and easy to popularize. DRAWINGS

[0016] Figure 1 It is the structure schematic view of the cervical vertebra front road operation expander.

[0017] Figure 2 It is the structure schematic view of the cervical vertebra front road operation expander based on Figure 1 The local structure schematic view of the direction side view angle.

[0018] Figure 3 It is the structure schematic view of the tissue partition plate of the cervical vertebra front road operation expander.

[0019] Reference signs:

[0020] 1 - rack 2 - vernier base 3 - fixed base 4 - tissue partition plate 5 - pile sleeve pipe

[0021] 21 - position locking member 22 - sliding drive knob 41 - fitting bar

[0022] The realization, functional features and advantages of the utility model will be further explained in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0023] Reference Figure 1 , Figure 2 The utility model discloses a cervical vertebra anterior approach operation distraction device, including distraction device main part and tissue baffle 4.

[0024] The distraction device main part includes rack 1, is provided with fixed base 3 at one end of rack 1, and cursor base 2 is slidably arranged on rack 1, and sliding drive knob 22 and position locking member 21 are further arranged on cursor base 2, and pile sleeve pipe 5 is further arranged on fixed base 3 and cursor base 2 respectively, that is to say, the distraction device main part here is the surgical distraction equipment in prior art.

[0025] The corner of pile sleeve pipe 5 is smooth, and the front and rear of pile sleeve pipe 5 are evenly arrayed with teeth respectively, and the front and rear here refer to the front and rear directions of the two sides of cervical vertebra during the operation.

[0026] The tissue baffle 4 is two-sided, and the tissue baffle 4 is movably arranged on the front and rear of pile sleeve pipe 5 respectively, and fitting bar 41 corresponding to the gap of teeth is arranged on the tissue baffle 4, that is, the fitting bar 41 can be embedded in the gap of teeth on the front and rear of pile sleeve pipe 5, and the implementation height of the baffle is limited.

[0027] The effect realized is that the pile is driven on the adjacent cervical vertebra, the pile sleeve pipe 5 is sleeved on the pile and is distracted, the tissue baffle 4 is arranged on the front and rear of pile sleeve pipe 5 after distraction, the gap of teeth on the front and rear of pile sleeve pipe 5 is fitted with fitting bar 41 on the tissue baffle 4, and the height of tissue baffle 4 is fixed, and the tissue on the two sides of cervical vertebra is naturally extruded inward after being fixed, and the baffle is tightly attached to pile sleeve pipe 5.

[0028] In embodiment 1, the pile sleeve pipe 5 is an oval tube, and the long axis of the oval tube section is arranged towards the front and rear of the distraction device respectively.

[0029] Preferably, the width of the oval tube is about 15mm.

[0030] The effect realized is that, based on the above-mentioned effect, the gap between pile sleeve pipe 5 is the longitudinal surgical field after the pile sleeve pipe 5 is distracted on the adjacent cervical vertebra.

[0031] The tissue partition plate 4 separates the muscles on both sides of the cervical vertebra, that is, the tissue partition plate 4 has a width based on the pile sleeve pipe 5 and a thickness of the tissue partition plate 4 itself, and the gap opened by the tissue partition plate 4 is a transverse surgical field of view.

[0032] In the embodiment 2, the pile sleeve pipe 5 is respectively hingedly arranged on the fixed base 3 and the cursor base 2.

[0033] The effect achieved by this is that after the pile sleeve pipe 5 is sleeved and opened, the main body part of the expander is flipped backward, which helps to completely expose the surgical field of view.

[0034] In the embodiment 3, the corners of the tissue partition plate 4 are smoothly transitioned, and the lower part is outwardly curved and arranged.

[0035] Preferably, the curvature of the lower part of the tissue partition plate 4 is about 30°.

[0036] The effect achieved by this is that the curved section of the bottom surface of the tissue partition plate 4 can cover the tissues pulled on both sides of the cervical vertebra.

[0037] In the embodiment 4, the length of the tissue partition plate 4 is 60-70 mm, and the width of the tissue partition plate 4 is provided in multiple specifications.

[0038] Preferably, the width specifications of the tissue partition plate 4 at least include 30 mm, 40 mm, 50 mm, 60 mm and 70 mm.

[0039] The effect achieved by this is that different pulling gaps are corresponded and are suitable for different surgical populations.

[0040] In the embodiment 5, referring to the accompanying drawings Figure 1 , the pipe channel of the pile sleeve pipe 5 is arranged close to the outer side of the expander main body.

[0041] Here, the outer side refers to the inside with respect to the direction of the expander main body rack 1, and the pipe channel of the pile sleeve pipe 5 is not centrally arranged in the pile sleeve pipe 5, but is arranged close to the front of the pile sleeve pipe 5.

[0042] The effect achieved by this is that the surgical position is in the central position of the field of view.

[0043] The use principle of the utility model is that pile nails are punched on adjacent cervical vertebra bodies, the pile sleeve pipe 5 is sleeved on the pile nails and is opened, the tissue partition plate 4 is arranged in front of and behind the pile sleeve pipe 5 after being opened, the gap between the teeth in front of and behind the pile sleeve pipe 5 is embedded with the embedded strip 41 on the tissue partition plate 4, and the height of the tissue partition plate 4 is fixed; after being fixed, the tissues on both sides of the cervical vertebra are naturally pressed inward, the constraint partition plate is tightly combined with the pile sleeve pipe 5;

[0044] The pile sleeve 5 props apart adjacent cervical vertebrae cones, and the gap between the pile sleeves 5 is a longitudinal surgical field;

[0045] The tissue partition 4 separates the muscles on both sides of the cervical vertebrae, that is, the tissue partition 4 has a gap based on the width of the pile sleeve 5 and the thickness of the tissue partition 4, and the gap is a transverse surgical field.

[0046] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting and the claims.

[0047] In addition, it should be understood that although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A cervical spine anterior approach surgery distractor, comprising a distractor main body and a tissue partition, the distractor main body comprising a rack, a fixed base being arranged at one end of the rack, a vernier base being arranged to slide on the rack, a sliding drive button and a position locking member being further arranged on the vernier base; a peg sleeve pipe being further arranged on the fixed base and the vernier base respectively, characterized in that: The teeth are evenly arranged on the front and back of the pile sleeve. The tissue partition is movably arranged on the front and back of the pile sleeve, and the tissue partition is provided with a matching strip corresponding to the gap between the teeth.

2. An anterior cervical spine surgery distractor according to claim 1, wherein, The pile sleeve is an oval tube, and the long axis of the oval tube is arranged towards the front and back of the spreader.

3. An anterior cervical spine procedure spreader as recited in claim 1, wherein, The pile sleeve is hingedly arranged on the fixed base and the cursor base.

4. An anterior cervical spine procedure spreader as recited in claim 1, wherein, The corner of the tissue partition is smoothly transitioned, and the lower part is outwardly curved and bent.

5. An anterior cervical spine procedure spreader as recited in claim 1, wherein, The length of the tissue partition is 60-70mm, and the width is provided with multiple specifications.

6. An anterior cervical spine procedure spreader as recited in claim 1, wherein, The tube channel of the pile sleeve is arranged close to the outer side of the spreader body.

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