Electrode fixing band for spinal cord electrical stimulation

Abstract

The utility model relates to the technical field of spinal cord electrical stimulation postoperative fixing instruments, in particular to an electrode fixing band for spinal cord electrical stimulation, which comprises a main waistband and an auxiliary waistband detachably connected with the main waistband. The auxiliary waistband comprises an electrode fixing section, a wound covering section and a sliding plate located between the electrode fixing section and the wound covering section, the electrode fixing section comprises a shell, a positioning groove is formed in the shell, sliding holes are formed in the two side walls in the positioning groove, sliding columns are slidably connected into the sliding holes, first compressed springs are arranged in the sliding holes, and clamping plates are fixed to the ends, away from the first compressed springs, of the sliding columns; a sliding groove is further formed in one end of the shell, the sliding plate is connected into the sliding groove, a locking assembly is arranged on the shell, and the locking assembly adjusts the distance between the positioning groove and the wound covering section by adjusting the length, extending into the sliding groove, of the sliding plate. The electrode fixing stability after herpes zoster spinal cord electrical stimulation operation can be enhanced, electrode displacement is prevented, postoperative wounds can be protected, use is convenient, and the work intensity of medical workers is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fixation instruments after spinal cord stimulation surgery, and specifically relates to an electrode fixing band for spinal cord stimulation surgery. Background Art

[0002] Herpes zoster is an infectious skin disease caused by varicella-zoster virus, which is common in adults, especially the elderly with weakened immunity. Postherpetic neuralgia is the most common complication of herpes zoster, which can cause burning pain in the nerves and skin in a band-shaped area on one side of the patient's trunk, seriously affecting the patient's quality of life.

[0003] Spinal cord stimulation is a treatment method for postherpetic neuralgia, and its principle is as Figure 1 shown. By implanting a linear electrode 4 into the epidural space in the spinal canal 101 of the patient's lower back 1, the electrode 4 is connected to an external pulse generator 2 through a connecting wire 3. The pulse generator 2 is fixed beside the electrode implantation wound at the patient's lower back 1 with medical tape. The pulse generator 2 can be externally connected to a programmer, and the programmer can adjust the relevant parameters of the pulse generator 2 (such as voltage, pulse width, stimulation frequency, etc.), so as to make the electrode 4 release a weak current to stimulate specific segments of the dorsal spinal cord, interfere with the conduction of pain nerve signals, and effectively inhibit the patient's pain. Moreover, as a minimally invasive surgery, this spinal cord stimulation has the advantages of high safety and fast recovery, so it is called the "green therapy".

[0004] Since it is necessary to prevent the pulse generator at the lower back from shifting after spinal cord stimulation surgery, a medical abdominal belt is usually used to fix the pulse generator after the surgery. However, this fixing method is not reliable on the one hand. When the patient moves, the pulse generator is likely to shake, resulting in electrode displacement. On the other hand, there are gaps in the abdominal belt, which are likely to cause the pulse generator to directly fall off and the electrode to be directly pulled out. To solve the above problems, the prior art "Fixation Assembly after Spinal Cord Stimulation Analgesia Surgery" (Publication No.: CN211658508U) discloses an abdominal belt, which is used to fill and install the pulse generator and the wire exposed outside the body by setting a storage pocket and a storage tube on the abdominal belt main body to achieve the fixing effect. However, the prior art still has the following technical problems:

[0005] After the surgery, the wound is covered with a gauze. When the existing abdominal belt is worn, the abdominal belt will stick tightly to the gauze at the wound, which will not only cause compression to the wound, resulting in wound bleeding, but also may cause the gauze at the wound to move or pull the wire due to the friction of the abdominal belt when tightening the abdominal belt, thus causing secondary injury to the wound;

[0006] Meanwhile, since the wound on the patient's back spine needs to be dressed regularly, the abdominal band of the prior art will cover the wound. When dressing the wound, the abdominal band needs to be removed, and when removing the abdominal band, the connecting wires need to be taken out from the wire storage tubes on the abdominal band in turn, which is cumbersome and increases the workload of medical staff. Summary of the Invention

[0007] The present utility model provides an electrode fixing band for spinal cord stimulation, which can solve the problems that the abdominal band in the prior art is likely to cause the wound of the patient to tear and bleed during wearing and is not convenient for medical staff to care for the wound.

[0008] The present application provides the following technical solution: An electrode fixing band for spinal cord stimulation, comprising a main waistband and a sub-waistband detachably connected to the main waistband;

[0009] The sub-waistband includes an electrode fixing section, a wound covering section and a sliding plate located between the two. The electrode fixing section includes a housing, a positioning groove is opened on the housing, sliding holes are provided on both side walls in the positioning groove, a sliding column is slidably connected in the sliding hole, a first compression spring is provided in the sliding hole, and a clamping plate is fixed at one end of the sliding column away from the first compression spring; The wound covering section is provided with a groove, and the opening of the groove faces the human body side;

[0010] A sliding groove is also opened at one end of the housing, the sliding plate is slidably connected in the sliding groove, and a locking component is provided on the housing. The locking component adjusts the distance between the positioning groove and the wound covering section by adjusting the length of the sliding plate extending into the sliding groove.

[0011] Advantageous Effects:

[0012] 1. Improved wound protection: The design of the groove in the wound covering section can cover the wound, provide a physical barrier for the wound, protect the wound surface from external pollution, promote wound healing. At the same time, during daily activities or wearing clothes, the groove design can reduce the friction between the wound and clothes or other objects, avoid causing pain or wound cracking, improve the comfort of the wearer, and reduce secondary damage to the wound.

[0013] 2. Enhanced stability of electrode fixation: Through the design of the sliding column, the first compression spring and the clamping plate, after the pulse generator is placed in the positioning groove, it is firmly clamped by the clamping plate, reducing the violent shaking of the pulse generator caused by the movement or activity of the patient, preventing the connecting wire from being pulled to cause the displacement of the electrode in the patient's body and resulting in wound tearing and bleeding, and improving the treatment effect.

[0014] 3. Flexible size adjustment: By adjusting the length of the sliding plate extending into the sliding groove through the locking component, not only can the pulse generator be adjusted to the optimal placement position according to the length of the connecting wire, but also the sub-waistband can adapt to the waist sizes of patients of different sizes, increasing the scope of application of the product and meeting the needs of more users.

[0015] Furthermore, the locking assembly includes a guide sleeve fixed on the housing and a positioning screw located inside the guide sleeve. The guide sleeve is provided with a receiving hole, and the positioning screw can extend into the chute from the receiving hole. A plurality of tooth grooves are formed on one side of the sliding plate close to the positioning screw, and the tip of the positioning screw fits the shape of the tooth grooves on the sliding plate. One end of the guide sleeve away from the sliding plate is threadedly connected with an end cap, the center of the end cap is provided with a threaded hole, and the positioning screw is threadedly connected in the threaded hole at the center of the end cap.

[0016] Beneficial effects: By screwing the positioning screw, the tip of the positioning screw can be driven to engage into the tooth grooves of the sliding plate, so as to accurately adjust and firmly lock the length of the sliding plate extending into the chute, enabling the pulse generator in the positioning groove on the housing to be positioned at the optimal placement position and increasing the applicability of the product.

[0017] Furthermore, a wire storage groove is also formed on one side of the housing close to the notch of the positioning groove.

[0018] Beneficial effects: When the patient wears the fixing belt of the present application, the connecting wire between the pulse generator and the electrode in the patient's body can be placed in the wire storage groove, preventing the wire with too long length from being wound or pulled, and improving the convenience of using the fixing belt.

[0019] Furthermore, the wound covering section includes a main body fixedly connected between the main waistband and the sliding plate. A groove is formed on the main body, and a cover plate is slidably connected to the bottom of the groove.

[0020] Beneficial effects: After the patient wears the fixing belt of the present application, the groove can avoid the wound on the patient's lower back, preventing the wound from being pressed by the fixing belt. At the same time, it can also cover and protect the wound, preventing foreign objects from causing harm to the wound.

[0021] Furthermore, a U-shaped notch is provided at the bottom of the groove of the main body, and protrusions are provided on both sides of the cover plate. The protrusions are slidably connected to the two side walls of the U-shaped notch.

[0022] Beneficial effects: The cover plate slides out from the U-shaped notch, thereby exposing the wound on the patient's lower back, so that medical staff can also change the dressing and care for the wound without removing the fixing belt of the present application, improving the operation convenience and reducing the work burden of medical staff.

[0023] Furthermore, one end of the main waistband away from the wound covering section is detachably connected to one end of the housing away from the chute through a magic tape.

[0024] Beneficial effects: The magic tape enables quick connection and separation between the main waistband and the secondary waistband of the fixing belt, improving the use convenience. At the same time, it can also adjust the tightness according to the size of the patient's waist, improving the use flexibility.

[0025] Further, the locking component includes a guide sleeve fixed on the housing, a locking sleeve slidably connected in the guide sleeve, a positioning screw rotatably connected to the locking sleeve, and a gear fixed at the end of the positioning screw. The gear is located in the chute, and the sliding plate is provided with a tooth groove meshing with the gear. A positioning protrusion is fixed at the end of the locking sleeve, and the shape of the positioning protrusion fits the tooth groove on the sliding plate. The positioning protrusion can vertically extend into the chute and be engaged with the tooth groove on the sliding plate. One end of the locking sleeve away from the positioning protrusion is provided with two-stage steps. A rubber ring is fixed on the outer circle of the first-stage step, and a card slot corresponding to the rubber ring is provided on the guide sleeve. The first-stage step can be engaged in the card slot, and the outer circle diameter of the second-stage step is larger than the outer circle diameter of the guide sleeve.

[0026] Beneficial effects: Through the meshing of the gear and the tooth groove, when the positioning screw is rotated, the position of the sliding plate in the chute can be accurately adjusted, which is convenient for finely adjusting the waist size of the entire fixing belt and improving the applicability. The locking sleeve is designed with two-stage steps. Pressing the rubber ring fixed on the outer circle of the first-stage step into the card slot can increase the friction force and prevent the first-stage step from falling out of the card slot; the outer circle diameter of the second-stage step is larger than the outer circle diameter of the guide sleeve, which is convenient for pulling out the first-stage step from the card slot to release the locking state of the sliding plate and improve the operation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the principle of implanting an electrode of a spinal cord stimulation technique into a patient's body.

[0028] Figure 2 It is the main structural view of the present invention.

[0029] Figure 3 is Figure 2 the top view of

[0030] Figure 4 is Figure 3 the sectional view taken along A-A in

[0031] Figure 5 is Figure 3 the enlarged view of B in

[0032] Figure 6 It is the main view of the second embodiment.

[0033] Figure 7 is Figure 6 the sectional view taken along B-B in

[0034] Figure 8 is Figure 7 the sectional view taken along C-C in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following is further detailed through specific embodiments:

[0036] The markings in the attached drawings of the specification include: the patient's lower back 1, spinal canal 101, pulse generator 2, connecting wire 3, electrode 4, main belt 5, housing 6, guide sleeve 61, end cap 62, wire storage groove 63, slide plate 7, main body 8, first compression spring 9, sliding column 10, clamping plate 11, positioning groove 12, sliding groove 13, groove 14, cover plate 15, accommodation hole 16, positioning screw 17, compression screw 18, gear 18, clamping groove 19, locking sleeve 20, rubber ring 21, second-stage step 22, positioning protrusion 23.

[0037] Example 1

[0038] As Figures 2 to 5 shown, an electrode fixing belt for spinal cord electrical stimulation includes a main belt 5 as shown in Figure 2 and Figure 3 shown, and a sub-belt for connecting the head and tail of the main belt 5. The main belt 5 is made of cloth material; the two ends of the main belt 5 are respectively connected to the two ends of the sub-belt, and can be fixed around the patient's waist.

[0039] As Figures 2 to 4 shown, the sub-belt includes an electrode fixing section, a wound covering section, and a slide plate 7 located between the two. The electrode fixing section includes a housing 6 as shown in Figure 2 shown. A positioning groove 12 is provided on the housing 6. Slide holes are provided on both side walls in the positioning groove 12. A sliding column 10 is slidably connected in the slide holes. A first compression spring 9 is provided in the slide holes. The left and right ends of the first compression spring 9 are respectively fixed to the bottom of the slide hole and the end of the sliding column 10. A clamping plate 11 is fixed to the end of the sliding column 10 away from the first compression spring 9; Figure 3 At the contact part between the left end of the housing 6 in

[0040] Figure 3 and the main belt 5, a magic tape is provided. A through groove is horizontally provided on the right end of the housing 6 near the human body side. This through groove is a wire storage groove 63; A sliding groove 13 is also horizontally provided at the right end of the housing 6. The slide plate 7 is slidably connected in the sliding groove 13. Multiple tooth grooves are provided on the slide plate 7; Figure 5 shown, a locking component is further fixed below the right end of the housing 6 in

[0041] As Figures 2 to 4 Figure 5 shown, the locking component includes a guide sleeve 61 fixed on the housing 6 and a positioning screw 17 located inside the guide sleeve. An accommodation hole 16 is provided in the guide sleeve 61. The tip of the positioning screw 17 can vertically extend into the sliding groove 13 from the accommodation hole 16, and the tip of the positioning screw 17 fits the shape of the tooth groove on the slide plate 7; The end of the guide sleeve 61 away from the slide plate 7 is threadedly connected with an end cap 62. The positioning screw is threadedly connected to the center of the end cap 62. By turning the positioning screw 17, the tip of the positioning screw 17 is caught in the tooth groove on the slide plate 7, so as to lock the length of the slide plate 7 extending into the sliding groove 13.

[0041] As Figures 2 to 4As shown, the wound covering section includes a main body 8 fixedly connected between the main waistband 5 and the sliding plate 7. Figure 2 The height of the main body 8 in Figure 2 is higher than that of the main waistband 5, facilitating the complete covering of the wound on the patient's waist. Figure 3 In Figure 3 , the left end of the main body 8 is fixedly connected to the sliding plate 7, the right end of the main body 8 is fixedly connected to the main waistband 5, a groove 14 is formed in the middle of the main body 8, a cover plate 15 is slidably connected to the bottom of the groove 14, protrusions are provided on both sides of the cover plate 15, and a U-shaped notch ( Figure 1 as shown) is provided at the bottom of the groove 14 of the main body 8, and the protrusions are slidably connected to the two side walls of the U-shaped notch.

[0042] The usage method of this fixing belt is as follows:

[0043] After the operation, wind the fixing belt around the patient's waist, and make the groove 14 cover the wound on the patient's waist. Then loosen the positioning screw 17 to adjust the length of the sliding plate 7 extending into the sliding groove 13, so that the pulse generator 2 is inserted into the positioning groove 12 at the most suitable position, and the clamping plates 11 will clamp both sides of the pulse generator 2, thereby preventing the pulse generator 2 from shaking. At this time, tighten the positioning screw 17 so that the tip of the positioning screw 17 is stuck into the tooth groove of the sliding plate 7 to limit and fix the sliding plate 7, and the fixing position of the pulse generator 2 is locked. Then embed the connecting wire 3 into the wire storage groove 63 to prevent the connecting wire 3 from leaking out. Finally, connect the main waistband 5 to the magic tape on the housing 6 to complete the wearing of the fixing belt.

[0044] When it is necessary to check and care for the wound on the patient's waist, the Figure 2 cover plate 15 in Figure 3 can be directly slid upward out of the U-shaped notch on the main body 8 to expose the wound, so as to facilitate the medical staff to directly check and care for the wound on the premise of removing the fixing belt. After the care is completed, slide the cover plate 15 back into the U-shaped notch.

[0045] Embodiment 2

[0046] This embodiment provides another structure of the locking component. As Figures 6 to 8 shown, the locking component includes a guide sleeve 61 fixed on the housing 6, a locking sleeve 20 slidably connected in the guide sleeve 61, a positioning screw 17 rotatably connected in the locking sleeve 20, and a gear 18 fixed at the end of the positioning screw 17. The gear 18 is horizontally arranged in the sliding groove 13, and a tooth groove meshing with the gear 18 is provided on the sliding plate 7. As Figure 7 shown, a positioning protrusion 23 is fixed at the end of the locking sleeve 20. A vertical groove is formed on one side of the receiving hole 16, and the positioning protrusion 23 is located in the vertical groove and can slide in the vertical groove. As Figure 8 shown, the tip shape of the positioning protrusion 23 fits the tooth groove on the sliding plate 7. As Figure 7As shown, one end of the locking sleeve 20 away from the positioning protrusion 23 is provided with two - stage steps. A rubber ring 21 is fixed on the outer circle of the first - stage step. A clamping groove 19 corresponding to the rubber ring 21 is provided on the guide sleeve 61. The first - stage step can be clamped into the clamping groove 19. The outer - circle diameter of the second - stage step 22 is larger than the outer - circle diameter of the guide sleeve 61.

[0047] During use, since the gear 18 meshes with the tooth groove on the slide plate 7, the length of the slide plate 7 extending into the chute 13 can be precisely adjusted by turning the positioning screw 17. When adjusted to the appropriate position, press the locking sleeve 20 to make the rubber ring 21 on the outer circle of the first - stage step snap into the clamping groove 19. At the same time, a part of the positioning protrusion 23 will vertically snap into the tooth groove of the slide plate 7 from the accommodation hole. At this time, the position of the slide plate 7 is locked. When the position needs to be readjusted, pinch the outer circle of the second - stage step 22 by hand and pull the first - stage step out of the clamping groove 19 in the direction away from the chute 13, so that the positioning protrusion 23 disengages from the tooth groove of the slide plate 7, and then the position of the slide plate 7 can be adjusted by turning the positioning screw 17.

[0048] The above are only the embodiments of the present utility model. The present utility model is not limited to the fields involved in this embodiment. Common knowledge such as specific structures and characteristics known in the solutions is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. An electrode fixing belt for spinal cord electrical stimulation, comprising a main belt and a secondary belt detachably connected to the main belt, characterized in that: The secondary waist belt comprises an electrode fixing section, a wound covering section and a slide plate located therebetween, the electrode fixing section comprises a shell, a positioning groove is provided on the shell, two side walls in the positioning groove are provided with sliding holes, a sliding column is slidably connected in the sliding hole, a first compression spring is provided in the sliding hole, a splint is fixed at one end of the sliding column away from the first compression spring; the wound covering section is provided with a groove, the opening of the groove faces one side of the human body; A slide groove is also provided at one end of the shell, and the slide plate is slidably connected in the slide groove. A locking component is provided on the shell, and the locking component adjusts the distance between the positioning groove and the wound covering section by adjusting the length of the slide plate extending into the slide groove.

2. An electrode fixing belt for spinal cord electrical stimulation according to claim 1, characterized in that: The locking assembly includes a guide sleeve fixed on the shell and a positioning screw located in the guide sleeve. A receiving hole is provided in the guide sleeve, and the positioning screw can extend into the slide groove from the receiving hole. A plurality of tooth grooves are provided on a surface of the slide plate close to the positioning screw, and the tip of the positioning screw matches the shape of the tooth grooves on the slide plate. An end of the guide sleeve away from the slide plate is threadedly connected to an end cover, and a threaded hole is provided in the center of the end cover, and the positioning screw is threadedly connected to the threaded hole in the center of the end cover.

3. An electrode fixing belt for spinal cord electrical stimulation according to claim 2, characterized in that: A wire receiving groove is also provided on one surface of the housing close to the notch of the positioning groove.

4. The electrode fixing belt for spinal cord electrical stimulation according to claim 3, characterized in that: The wound covering section comprises a main body fixedly connected between the main waist belt and the slide plate, the main body is provided with a groove, and a cover plate is slidably connected to the bottom of the groove.

5. The electrode fixing belt for spinal cord electrical stimulation according to claim 4, characterized in that: A U-shaped notch is arranged at the bottom of the groove of the main body, and protrusions are arranged on both sides of the cover plate, and the protrusions are slidably connected to the two side walls of the U-shaped notch.

6. The electrode fixing belt for spinal cord electrical stimulation according to claim 5, characterized in that: One end of the main waistband away from the wound covering section and one end of the shell away from the slide slot are detachably connected via Velcro.

7. The electrode fixing belt for spinal cord electrical stimulation according to claim 1, characterized in that: The locking assembly includes a guide sleeve fixed on the shell, a locking sleeve slidably connected in the guide sleeve, a positioning screw rotatably connected in the locking sleeve, and a gear fixed at the end of the positioning screw. The gear is located in the slide groove, the slide plate is provided with a tooth groove meshing with the gear, a positioning protrusion is fixed at the end of the locking sleeve, the tip shape of the positioning protrusion matches the tooth groove on the slide plate, the positioning protrusion can vertically extend into the slide groove and be snapped into the tooth groove on the slide plate, and the locking sleeve is provided with two steps at one end away from the positioning protrusion, the outer circle of the first step is fixed with a rubber ring, the guide sleeve is provided with a slot corresponding to the rubber ring, the first step can be snapped into the slot, and the outer circle diameter of the second step is larger than the outer circle diameter of the guide sleeve.

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