Adjustable prone position pad special for spine surgery

Abstract

The utility model relates to an adjustable prone position pad special for spine surgery. The adjustable prone position pad comprises a shoulder and chest pad and an iliac pad. The shoulder and chest pad is H-shaped; the iliac cushion comprises a bottom plate and two cushion blocks, and further comprises two sets of lifting mechanisms driving the two cushion blocks to ascend and descend relative to the bottom plate, and two sets of left-right translation mechanisms driving the two cushion blocks to translate left and right relative to the bottom plate. And the two cushion blocks are outwards splayed towards the head side. The structure of the shoulder and chest pad is optimized, so that the shoulder and chest pad conforms to the human body structure, and a female patient feels comfortable even when using the shoulder and chest pad; the structure of the iliac pad is optimized, on one hand, the iliac pad is of an integrated structure instead of a split structure, convenient to use and not prone to displacement, and on the other hand, the iliac pad has three degrees of freedom of rotation, up-down translation and left-right translation, can be flexibly adjusted according to different body types, is suitable for all people, has high universality and can ensure that the abdomen is completely suspended; the device plays a great role in reducing bleeding in the minimally invasive spine surgery, and belongs to the technical field of spine surgery auxiliary equipment.

Description

Technical Field

[0001] The utility model relates to spinal surgery auxiliary equipment, in particular to an adjustable prone position pad specially used for spinal surgery. Background Art

[0002] The prone position pad is essential in posterior spinal surgery, especially in minimally invasive spinal surgery, which requires the patient's abdomen to be completely suspended to more effectively reduce the interference of intraoperative bleeding. This makes spinal surgeons more stringent in their requirements for prone position pads.

[0003] CN208160726U discloses a novel modular prone position pad, comprising a base pad, a chest pad and two symmetrically arranged iliac pads; the chest pad is arranged on the upper end surface of one end of the base pad; the iliac pad is movably arranged on the middle upper end surface of the base pad; the prone position pad can effectively place the patient in a prone position, so that the chest and abdomen of obese patients are completely suspended, effectively reducing the pressure on both sides of the abdomen, but it has the following disadvantages: 1. The two iliac pads are directly placed in a split structure, which requires alignment during use and is also easy to shift. 2. The chest pad is a rectangular block structure, which is less comfortable for female patients. 3. The iliac pad cannot adjust the height and is not suitable for people of various body shapes, which has a great impact on versatility.

[0004] In addition, for minimally invasive lumbar spine surgery, general prone position pads are difficult to meet the requirements, because minimally invasive lumbar spine surgery requires a very clear surgical field of view, and the abdomen needs to be completely suspended to reduce venous plexus pressure and reduce the interference of intraoperative bleeding on the surgical field. Especially for obese patients, the existing prone position pads are not enough to completely suspend the abdomen, which will cause a lot of intraoperative bleeding, affect surgical operations, and easily lead to complications of nerve damage. Some prone position pads have unreasonable support designs for the human body, resulting in stress concentration and easily causing skin damage to patients. Utility Model Content

[0005] In view of the technical problems existing in the prior art, the purpose of the utility model is to provide an adjustable prone position pad for spinal surgery with good versatility and comfort.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An adjustable prone position pad specially used for spinal surgery comprises a shoulder-chest pad and an iliac pad; the shoulder-chest pad is H-shaped; the iliac pad comprises a base plate and two pads, and also comprises two sets of lifting mechanisms for driving the two pads to lift and lower relative to the base plate, and also comprises two sets of left-right translation mechanisms for driving the two pads to translate left-right relative to the base plate; the two pads are in an outward "eight" shape toward the head side.

[0008] As a preferred embodiment, the lifting mechanism includes a column, a cylinder, a top plate, and a lifting positioning pin; the top plate for installing the pad is located at the upper end of the cylinder, and the cylinder is sleeved outside the column and slides up and down relative to the column; a vertical row of first through holes are respectively provided on the front and rear sides of the cylinder, and the column is provided with a vertical row of first positioning holes penetrating in the front and rear directions, and the lifting positioning pin passes through the first through hole and the first positioning hole, thereby locking the column and the cylinder.

[0009] As a preferred embodiment, the cushion block is provided with a mounting hole which passes through from top to bottom, and the top plate is provided with a threaded hole, and the screw passes through the mounting hole and is screwed into the threaded hole, thereby connecting the cushion block and the top plate in an angle-adjustable manner.

[0010] As a preferred embodiment, the left and right translation mechanism includes a slide groove and left and right positioning pins opened on the base plate; the length direction of the slide groove extends along the left and right direction, and a row of second through holes is opened on the front side wall and the rear side wall of the slide groove respectively, and the lower section of the column is provided with a second positioning hole penetrating in the front and rear directions; the left and right positioning pins pass through the second through holes and the second positioning holes, thereby locking the column and the base plate.

[0011] As a preferred embodiment, the column is cylindrical, and the front and rear sides of the lower section of the column are milled with planes to form a sliding portion, the sliding portion is inserted into the slide groove, and the second positioning hole is arranged at the plane; the outer side of the cylinder is cylindrical with front and rear sides milled with planes, the first through hole is arranged at the plane, and a cylindrical socket matching the column is provided in the cylinder.

[0012] As a preferred embodiment, the bottom plate includes two left and right rectangular sections and a middle connecting section for easy gripping, and the sliding groove is provided in the rectangular section.

[0013] As a preferred embodiment, the cushion block is a rectangular cushion block, and a slope is provided on the outer side of the rear end.

[0014] As a preferred embodiment, the shoulder-chest pad comprises two shoulder support sections, a sternum support section, and two chest support sections which are arranged in sequence from front to back, the sternum support section is arranged laterally along the left-right direction, the two shoulder support sections are located at the left front side and the right front side of the sternum support section, and the two chest support sections are located at the left rear side and the right rear side of the sternum support section; in the left-right direction, the width of the shoulder support section is greater than that of the chest support section; in the front-back direction, the length of the shoulder support section is less than that of the chest support section.

[0015] As a preferred embodiment, the upper end surfaces of the shoulder-chest pad and the pad block are both provided with a buffer layer.

[0016] As a preferred embodiment, the shoulder and chest pads and the pads are made of X-ray transparent polymer materials.

[0017] The utility model has the following advantages:

[0018] 1. The shoulder and chest pad structure is optimized to conform to the human body structure, making it more comfortable even for female patients to use.

[0019] 2. Optimize the iliac pad structure. On the one hand, the iliac pad is an integrated structure rather than a split structure, which is easy to use and not easy to shift. On the other hand, it has three degrees of freedom: rotation, up and down translation, and left and right translation. It can be flexibly adjusted for different body shapes, suitable for all people, and has high versatility.

[0020] 3. The lifting mechanism and left and right translation mechanism have simple structures and are easy to operate.

[0021] 4. A narrower connecting section is set in the middle of the bottom plate to facilitate the operator to hold it with one hand.

[0022] 5. Set up a slope to reduce pressure on the nerves and blood vessels at the base of the thigh.

[0023] 6. Set up a buffer layer to make it more comfortable to use and reduce skin damage.

[0024] 7. Use X-ray-transmissive polymer materials to reduce interference with intraoperative fluoroscopy.

[0025] 8. It can ensure that the abdomen is completely suspended, which plays a great role in reducing bleeding in minimally invasive spinal surgery. It is also suitable for extreme cases, namely minimally invasive lumbar spinal canal decompression surgery for obese patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a frontal view of the iliac pad.

[0027] Figure 2 is a dorsal view of the iliac pad.

[0028] Figure 3 This is an exploded view of the iliac pad.

[0029] Figure 4 It is a structural diagram of the cylinder and the top plate.

[0030] Figure 5 It is a three-dimensional picture of the shoulder and chest pad.

[0031] Figure 6 This is a top view of the shoulder and chest pad.

[0032] Among them, 1 is a cushion block, 2 is a top plate, 3 is a cylinder, 4 is a column, 5 is a lifting positioning pin, 6 is a first through hole, 7 is a first positioning hole, 8 is a slide groove, 9 are left and right positioning pins, 10 is a second through hole, 11 is a second positioning hole, 12 is a connecting section, 13 is a slope, 14 is a shoulder support section, 15 is a sternum support section, and 16 is a chest support section. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with specific implementation methods.

[0034] An adjustable prone position pad specially used for spinal surgery includes a shoulder-chest pad and an iliac pad. The shoulder-chest pad is H-shaped; the iliac pad includes a base plate and two pads, and also includes two sets of lifting mechanisms for driving the two pads to lift and lower relative to the base plate, and also includes two sets of left-right translation mechanisms for driving the two pads to translate left and right relative to the base plate; the two pads are in an outward "eight" shape toward the head (i.e., the big mouth faces the head), which is the same as the shape of the iliac crest. The utility model takes the bilateral anterior superior iliac spines and thorax as the main load-bearing points, and the abdomen is not subjected to any pressure. The height of a pad can be adjusted by a set of lifting mechanisms, and the distance between the two pads can be adjusted by two sets of left-right translation mechanisms to adapt to the width of the bilateral anterior superior iliac spines, which is suitable for all people.

[0035] The lifting mechanism includes a column, a cylinder, a top plate, and a lifting positioning pin; the top plate for installing the cushion block is located at the upper end of the cylinder, and the cylinder is sleeved outside the column and slides up and down relative to the column; a vertical row of first through holes is provided on each of the front and rear sides of the cylinder, and the column is provided with a vertical row of first positioning holes that penetrate in the front and rear directions, and the lifting positioning pin passes through the first through hole and the first positioning hole, thereby locking the column and the cylinder. In this embodiment, the top plate and the cylinder are an integrated structure; the number of first through holes in each row is three, and the number of first positioning holes is three.

[0036] The pad is provided with mounting holes that run through the top and bottom, and the top plate is provided with threaded holes. The screws pass through the mounting holes and are screwed into the threaded holes, thereby connecting the pad and the top plate in an adjustable angle. Place the pad to a suitable angle and then tighten the screws to lock it.

[0037] The left-right translation mechanism includes a slide slot and left-right positioning pins provided on the bottom plate; the length direction of the slide slot extends in the left-right direction, the front side wall and the rear side wall of the slide slot each have a row of second through holes, and the lower section of the column is provided with a second positioning hole that penetrates in the front-to-back direction; the left-right positioning pins pass through the second through holes and the second positioning holes, thereby locking the column and the bottom plate. In this embodiment, the number of second through holes in each row is five, and the number of second positioning holes is one.

[0038] The cylinder is cylindrical, and planes are milled on the front and rear sides of the lower section of the cylinder to form a sliding portion, the sliding portion is inserted into the slide groove, and the second positioning hole is arranged at the plane; the outer side of the cylinder is cylindrical with planes milled on the front and rear sides, the first through hole is arranged at the plane, and a cylindrical socket matching the cylinder is arranged in the cylinder.

[0039] The bottom plate includes two rectangular sections on the left and right and a connecting section in the middle for easy gripping, and the slide groove is arranged in the rectangular section. In this embodiment, the connecting section adopts a strip shape with a smaller width, which is convenient for single-hand gripping.

[0040] The cushion block is a rectangular cushion block, and a slope is arranged at the outer side of the rear end (i.e., one of the corners of the rectangle), which can reduce the compression of the cushion block on the femoral artery, vein, and nerve.

[0041] The shoulder-chest pad includes two shoulder support sections, one sternum support section, and two chest support sections arranged in sequence from front to back. The sternum support section is arranged horizontally along the left-right direction. The two shoulder support sections are located on the left front and right front sides of the sternum support section, and the two chest support sections are located on the left rear and right rear sides of the sternum support section. In the left-right direction, the width of the shoulder support section is greater than that of the chest support section. In the front-back direction, the length of the shoulder support section is less than that of the chest support section. After adopting this structure, appropriate force points are set according to the human skeleton, and space is left to avoid compressing the front chest.

[0042] The upper end surfaces of the shoulder and chest pads and the pads are both provided with a buffer layer, which is preferably a gel pad to protect the skin contact point and reduce skin damage.

[0043] The shoulder and chest pads and pads are made of X-ray-transmissive polymer materials. Preferably, the bottom plate, top plate, column, and cylinder are all made of carbon fiber materials, which are light, low-cost, transparent, and high-strength. The lifting positioning pins and the left and right positioning pins are made of metal materials.

[0044] When in use, place the shoulder-chest pad and iliac pad on the operating table according to the patient's body shape. Unscrew the screw, swing the pad to a suitable angle, and then tighten the screw to adjust the angle of the pads on both sides; pull out the lifting positioning pin, adjust the height of the cylinder relative to the column, and then insert the lifting positioning pin to complete the adjustment of the lifting mechanism on both sides; pull out the left and right positioning pins, adjust the position of the column relative to the slide slot, and then insert the left and right positioning pins to complete the adjustment of the left and right translation mechanism on both sides. In this way, the patient can lie prone during surgery.

[0045] In addition to the methods mentioned in this embodiment, the lifting mechanism can adopt other structures known to those skilled in the art, such as a structure of a threaded column and a sleeve being screwed together, and the height adjustment can be achieved by relative rotation of the two. The left and right translation mechanism can adopt other structures known to those skilled in the art, such as a gear rack mechanism, which drives the rack to translate by rotating the gear, and then drives the mechanism to translate left and right. These transformation methods are all within the protection scope of the present utility model.

[0046] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An adjustable prone position pad for spinal surgery, characterized in that: It includes a shoulder-chest pad and an iliac pad; the shoulder-chest pad is H-shaped; the iliac pad includes a base plate and two pads, and also includes two sets of lifting mechanisms for driving the two pads to rise and fall relative to the base plate, and also includes two sets of left and right translation mechanisms for driving the two pads to translate left and right relative to the base plate; the two pads are in an outward "eight" shape toward the head side.

2. An adjustable prone position cushion for spinal surgery according to claim 1, characterized in that: The lifting mechanism includes a column, a cylinder, a top plate, and a lifting positioning pin; the top plate for installing the pad is located at the upper end of the cylinder, and the cylinder is sleeved outside the column and slides up and down relative to the column; a vertical row of first through holes are respectively provided on the front and rear sides of the cylinder, and the column is provided with a vertical row of first positioning holes that penetrate in the front and rear directions, and the lifting positioning pin passes through the first through hole and the first positioning hole, thereby locking the column and the cylinder.

3. An adjustable prone position cushion for spinal surgery according to claim 2, characterized in that: The cushion block is provided with a mounting hole which passes through from top to bottom, and the top plate is provided with a threaded hole. The screw passes through the mounting hole and is screwed into the threaded hole, so that the cushion block and the top plate are connected in an angle-adjustable manner.

4. An adjustable prone position cushion for spinal surgery according to claim 2, characterized in that: The left-right translation mechanism includes a slide groove and left-right positioning pins opened on the bottom plate; the length direction of the slide groove extends along the left-right direction, and a row of second through holes is opened on the front side wall and the rear side wall of the slide groove respectively, and the lower section of the column is provided with a second positioning hole penetrating in the front-to-back direction; the left-right positioning pins pass through the second through holes and the second positioning holes, thereby locking the column and the bottom plate.

5. An adjustable prone position cushion for spinal surgery according to claim 4, characterized in that: The cylinder is cylindrical, and planes are milled on the front and rear sides of the lower section of the cylinder to form a sliding portion, the sliding portion is inserted into the slide groove, and the second positioning hole is arranged at the plane; the outer side of the cylinder is cylindrical with planes milled on the front and rear sides, the first through hole is arranged at the plane, and a cylindrical socket matching the cylinder is arranged in the cylinder.

6. An adjustable prone position cushion for spinal surgery according to claim 4, characterized in that: The bottom plate comprises two left and right rectangular sections and a middle connecting section which is convenient for holding, and the sliding grooves are arranged in the rectangular sections.

7. An adjustable prone position cushion for spinal surgery according to claim 1, characterized in that: The pad is a rectangular pad with a slope at the outer side of the rear end.

8. The adjustable prone position cushion for spinal surgery according to claim 1, characterized in that: The shoulder-chest pad comprises two shoulder support sections, a sternum support section, and two chest support sections which are arranged in sequence from front to back. The sternum support section is arranged horizontally along the left-right direction. The two shoulder support sections are located at the left front side and the right front side of the sternum support section, and the two chest support sections are located at the left rear side and the right rear side of the sternum support section. In the left-right direction, the width of the shoulder support section is greater than that of the chest support section. In the front-back direction, the length of the shoulder support section is less than that of the chest support section.

9. The adjustable prone position cushion for spinal surgery according to claim 1, characterized in that: The upper end surfaces of the shoulder and chest pad and the pad block are both provided with a buffer layer.

10. The adjustable prone position cushion for spinal surgery according to claim 1, characterized in that: The shoulder and chest pads and pads are made of X-ray transparent polymer material.

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