Intraspinal anesthesia sitting position puncture fixing device

Abstract

The utility model discloses an intra-spinal anesthesia sitting position puncture fixing device which comprises a U-shaped base and a vertical shaft provided with a plurality of limiting grooves, and the vertical shaft is provided with a lifting sleeve in sliding fit and a knob limiting screw installed on one side of the lifting sleeve and located with the limiting grooves. The lifting sleeve is provided with a lifting foot support, an adjustable abdomen support, an arm support and a head support from bottom to top, wherein the arm support and the head support are of an integrated structure. Therefore, the problems that waist spinous processes and spinous process gaps of obese patients, especially obese pregnant and lying-in women are not clear in touch due to too thick waist and back fat or large abdominal girth, positioning of anesthetists is inaccurate, and intraspinal puncture is difficult and even fails are effectively solved. Meanwhile, the influence of waist and back fat on puncture is reduced, and the puncture success rate and the comfort of a patient are improved.

Description

Technical Field

[0001] This utility model relates to an anesthesia auxiliary device, specifically a spinal anesthesia sitting puncture and fixation device. Background Technology

[0002] Spinal anesthesia is one of the most commonly used anesthetic methods in surgery, and it plays an irreplaceable role in obstetric surgery and lower limb orthopedic surgery.

[0003] Currently, most hospitals in China use the left or right lateral decubitus position for spinal anesthesia, locating the spinous processes and interspinous spaces by palpating the patient's lumbar spine. However, with the increasing obesity rate, there are more and more obese patients, especially obese pregnant women. In obese patients, excessive back fat or large abdominal circumference often makes it difficult to palpate the spinous processes and interspinous spaces, leading to inaccurate positioning by the anesthesiologist, resulting in difficult or even failed spinal punctures. Compared to the lateral decubitus position, the sitting, forward-leaning position better helps the anesthesiologist determine the midline of the spine and reduces the influence of back fat on the puncture, improving the success rate and increasing patient comfort. Therefore, the fact that foreign hospitals often use the sitting position for spinal anesthesia may be related to the generally larger weight of patients and a greater emphasis on comfort in those countries. Summary of the Invention

[0004] In view of the above situation, this utility model provides a sitting fixation device for spinal anesthesia. Before spinal anesthesia puncture, the patient's head, both upper limbs, and both feet are placed in a suitable position on this device, and the height and tilt angle are adjustable. After fixing the tilt angle of the patient's lower back, it is easier for the anesthesiologist to determine the midline of the spine, improving the success rate of puncture and comfort.

[0005] The technical solution of this utility model is: a sitting puncture and fixation device for spinal anesthesia, including a U-shaped base and a vertical shaft with multiple limiting grooves on it. The vertical shaft is provided with a sliding lifting sleeve and a knob limiting screw installed on one side of the lifting sleeve and positioned with the multiple limiting grooves. The lifting sleeve is provided with a lifting foot support, an adjustable abdominal support, an integrated arm support and a head support from bottom to top.

[0006] In this invention, the base includes a U-shaped frame, the bottom of which is equipped with a set of casters and a set of adjustable support pads.

[0007] In this invention, the lifting footrest includes a foot pedal with a rotating shaft. The rotating shaft has a radially recessed annular groove. The rotating shaft is inserted into a fixed shaft sleeve fixed on the lifting sleeve. The outer end of the fixed shaft sleeve has a convex and concave surface that forms a limiting card for the rotation radius of the rotating shaft. The fixed shaft sleeve has a radially threaded hole that corresponds to the radially recessed annular groove of the rotating shaft. A threaded set screw is inserted into the recessed annular groove, so that the rotating shaft can rotate while being limited by the threaded set screw to prevent it from falling off.

[0008] In this new invention, the integrated lifting arm support and head support are respectively installed at both ends of the support arm and are fixedly connected to the lifting sleeve through the mounting seat on the support arm.

[0009] In this invention, the abdominal support includes an arc-shaped support plate, which is hinged to a connecting rod and a telescopic rod. The connecting rod and the telescopic rod are hinged to a hinge lug and a sliding sleeve on the lifting sleeve, respectively. The telescopic rod is provided with a first knob limiting screw, a threaded hole on one side of the sliding sleeve, and a second knob limiting screw installed in the threaded hole. The second knob limiting screw is used to tighten and limit the lifting sleeve.

[0010] Furthermore, the head support is U-shaped, and the top and sides of the U-shape support the head and cheeks, so that the eyes, nose and mouth are in an open position.

[0011] The beneficial effects of this invention are as follows: The designed sitting fixation device for spinal anesthesia effectively solves the problem of difficulty or even failure in spinal puncture in obese patients, especially obese pregnant women, due to excessive back fat or large abdominal circumference, making it difficult to clearly palpate the spinous processes and interspinous spaces. This leads to inaccurate positioning by the anesthesiologist. Therefore, changing the lateral decubitus position to a sitting, forward-leaning position for spinal anesthesia puncture better helps the anesthesiologist determine the midline of the spine and reduces the influence of back fat on the puncture, improving the success rate and patient comfort. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this novel invention;

[0013] Figure 2 This is the right view of Figure 1;

[0014] Figure 3 yes Figure 1 Exploded view of the pivot joint between the fixed-axis sleeve and the foot pedal;

[0015] Figure 4 yes Figure 3 Left view of the fixed-axis sleeve;

[0016] Figure 5 yes Figure 1 Patient usage status is referenced in the example;

[0017] Figure 6 yes Figure 1 Reference example for usage status of pregnant and postpartum patients. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] See Figures 1 to 4 The illustrated spinal anesthesia seated puncture fixation device includes a U-shaped base 1, with a set of casters 2 and an adjusting support pad 3 mounted on its bottom. The casters 2 allow the U-shaped base 1 to move. The adjusting support pads 3 adjust the flatness of the U-shaped base 1 relative to the ground while also limiting its displacement. A fixed vertical shaft 4 is mounted on the U-shaped base 1, with multiple axial limiting grooves 5. A lifting sleeve 6 is slidably mounted on the vertical shaft 4, allowing for axial vertical displacement relative to the vertical shaft 4. A threaded hole (not shown) is located radially at the lower part of the lifting sleeve 6, through which a knob limiting screw 7 is positioned and engaged with the limiting grooves 5 on the vertical shaft 4. The lifting sleeve 6 is adjusted according to the patient's height in a seated position. By controlling the knob limiting screw 7 to limit the vertical displacement of the lifting sleeve 6, a suitable position is found and the sleeve is positioned. In this embodiment, the lifting sleeve 6 is equipped with a lifting footrest, an adjustable abdominal support, an integrated arm support 14, and a head support 17 from bottom to top. The lifting footrest, adjustable abdominal support, integrated arm support 14, and head support 17 are used to place the patient's feet, support the abdomen, arms, and head of the pregnant woman, respectively, so that the patient's back is in a tilted sitting position. In this embodiment, the lifting footrest includes a foot pedal 8 with a rotating shaft 9. The rotating shaft 9 has a concave annular groove C in the radial direction. The rotating shaft 9 is inserted into a fixed shaft sleeve 11 fixed on the lifting sleeve 6. The foot pedal 8 is mounted on the rotating shaft 9. The rotating shaft 9 has a concave annular groove C in the radial direction. The rotating shaft 9 is inserted into a fixed shaft sleeve 11 fixed on the lifting sleeve 6. The outer end of the fixed shaft sleeve 11 has a convex and concave surface forming an upper limit stop a and a lower limit stop b for the counterclockwise and counterclockwise rotation radius of the rotating shaft 9. The fixed shaft sleeve 11 has a threaded hole 23 in the radial direction, which corresponds to the concave annular groove C in the radial direction of the rotating shaft 9. The threaded set screw 10 is inserted into the concave annular groove C, so that the rotating shaft 9 can rotate and is also limited by the threaded set screw 10 to prevent disengagement (see...). Figure 3In the above description, when the foot pedal 8 and the rotating shaft 9 rotate counterclockwise to the upper limit stop a position, the foot pedal 8 is in the raised position; when the foot pedal 8 and the rotating shaft 9 rotate clockwise to the lower limit stop b position, the foot pedal 8 is in the lowered position. In this embodiment, the integrated arm support 14 and head support 17 are respectively installed at both ends of the support arm 16 and are fixedly connected to the lifting sleeve 6 through the mounting seat 15 on the support arm 16. The head support 17 is U-shaped. In this embodiment, the abdominal support includes an arc-shaped support plate 20, which is hinged to a connecting rod 19 and a telescopic rod 21. The connecting rod 19 and the telescopic rod 21 are hinged to a hinge lug 18 and a sliding sleeve 12 provided on the lifting sleeve 6, respectively. The telescopic rod 21 is provided with a first knob limiting screw 22 to control the positioning of the telescopic rod 21. A threaded hole is provided on one side of the sliding sleeve 12 and a second knob limiting screw 13 is installed in the threaded hole. The second knob limiting screw 13 is tightened and limited against the lifting sleeve 6.

[0020] In the above, when the abdominal support is not in use, the second knob limiting screw 13 is loosened and the sliding sleeve 12 is moved upward. At this time, the connecting rod 19 and the telescopic rod 21 tilt downward and approach the lifting sleeve 6. The second knob limiting screw 13 is locked in a retracted and folded state.

[0021] When the abdominal support is in use, loosening the second knob limiting screw 13 moves the sliding sleeve 12 downwards. At this time, the connecting rod 19 and the telescopic rod 21 extend away from the lifting sleeve 6, making the telescopic rod 21 horizontal. Locking the second knob limiting screw 13 puts it in the open state. The extension or shortening of the telescopic rod 21 can be adjusted by using the first knob limiting screw 22, depending on the size of the pregnant woman's abdomen.

[0022] In the above, the head support 17 is U-shaped, and the top and sides of the U-shape support the head and cheeks, so that the eyes, nose and mouth are in an open position.

[0023] In the above, the U-shaped base is equipped with a set of casters and a set of adjusting support pads. The set of adjusting support pads can be replaced with casters. When two sets of casters are used, a locking pedal is set on one set of casters.

[0024] See Figure 5A reference embodiment for patient use is provided. Patient A sits on the bed F. The seated puncture fixation device is pushed to a position in front of Patient A. First, loosen the knob limiting screw 7 on the lifting sleeve 6 and adjust the lifting sleeve 6 up and down so that Patient A's two arms D can be bent and rest on the arm rest 14. Tighten the knob limiting screw 7 to position the lifting sleeve 6 and the vertical shaft 4. Patient A places their head C on the head rest 17, so that Patient A's eyes, nose, and mouth are located at the U-shaped opening of the head rest 17 and exposed. Then, let Patient A's two feet E hang down on the foot pedal 8 of the lifting footrest. Adjust the rotation radius of the rotating shaft 9 according to the leg length until the upper limit a and lower limit b are positioned so that both feet E can step on the foot pedal 8. At this time, Patient A's back B is in a comfortable tilted position. After the patient's position is fixed, the doctor can disinfect the skin of the lower back. After the seated spinal anesthesia puncture is successful, the seated puncture fixation device is removed. When the abdominal support is not needed, the sliding sleeve 12 is moved up along the lifting sleeve 6 until the abdominal support is removed from the patient A's abdomen, and the second rotating knob limiting screw 13 is used to position the sliding sleeve 12 between the sliding sleeve 12 and the lifting sleeve 6.

[0025] In the above, if the tilt angle of patient A's back B is to be adjusted, it can be achieved by moving the patient forward to a seated position and using a puncture fixation device.

[0026] See Figure 6 Given Figure 1 Example of use for pregnant and postpartum women: Patient A sits on bed F. The seated puncture fixation device is pushed to the position in front of Patient A. First, loosen the knob limiting screw 7 on the lifting sleeve 6 and adjust the lifting sleeve 6 up and down so that Patient A's two arms D can be bent and rest on the arm rest 14. Tighten the knob limiting screw 7 to position the lifting sleeve 6 on the vertical shaft 4. Patient A places her head C on the head rest 17. Then, let Patient A's two feet hang down on the foot pedal 8 of the lifting footrest. Adjust the rotation radius of the rotating shaft 9 according to the leg length until the upper limit card a and lower limit card b are positioned so that both feet E can step on the foot pedal 8. Loosen the second knob limiting screw 13, adjust the sliding sleeve 12 to move down to a horizontal position with the telescopic rod 21, and then loosen the first knob limiting screw 22 to adjust the displacement of the arc-shaped support plate 20 of the telescopic rod 21 to support the abdomen of the pregnant woman A, preventing it from sagging and ensuring comfort. After adjustment, tighten the first knob limiting screw 22 to fix it. At this time, the back B of the pregnant woman A is in a comfortable tilted position. After the position of the pregnant woman A is fixed, the doctor can disinfect the skin of the lower back. After the successful spinal anesthesia puncture in a sitting position, remove the sitting puncture fixation device.

Claims

1. An apparatus for fixing a puncture in an intravertebral anesthesia sitting position, characterized in that, The U-shaped base is provided with a vertical shaft with a plurality of limiting grooves, a slidingly fitted lifting sleeve and a rotating knob limiting screw installed on one side of the lifting sleeve and positioned with the plurality of limiting grooves.

2. The spinal anesthesia sitting puncture fixing device according to claim 1, wherein The bottom of the U-shaped base is respectively provided with a set of universal wheels and a set of adjusting support pads.

3. The spinal anesthesia sitting puncture fixing device according to claim 1, wherein the fixing device is characterized in that, The lifting foot support includes a foot pedal with a rotating shaft, which is provided with a concave groove in the radial direction, is inserted into a fixed shaft sleeve on the lifting sleeve, and has a convex concave surface on the outer side of the fixed shaft sleeve to form an upper and lower limiting clamp for the reverse and forward rotation radius of the rotating shaft.

4. The spinal anesthesia sitting position puncture fixing device according to claim 1, wherein The lifting arm support and the head support are integrally formed and are respectively installed at the two ends of the support arm and are fixedly connected with the lifting sleeve through the mounting seat on the support arm.

5. The spinal anesthesia sitting position puncture fixing device according to claim 1, wherein The abdominal support includes an arc-shaped support plate, which is hingedly connected with a connecting rod and an extension rod, and the connecting rod and the extension rod are hingedly connected with a hinged lug and a sliding sleeve provided on the lifting sleeve.

6. The spinal anesthesia sitting position puncture fixing device according to claim 1, wherein The head support is in the shape of a U-shaped body, and the top and side surfaces of the U-shaped body support the head and cheeks, so that the eyes, nose and mouth are located in the open body position.

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