Sternum fixing band used after cardiac surgery
By designing an adjustable splint and a detachable cover plate, the sternal fixation strap solves the problem of inconvenient wound cleaning with traditional chest straps, improving the comfort and healing effect of postoperative cardiac patients.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FULING HOSPITAL AFFILIATED TO CHONGQING UNIV
- Filing Date
- 2025-01-15
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional chest straps are inconvenient for cleaning wounds after cardiac surgery, affecting patient comfort and hindering sternal fixation and wound healing.
A sternal fixation belt was designed, comprising an adjustable strap assembly and a removable splint. The splint is adjustable in tightness and is equipped with a removable cover for easy wound cleaning and back wiping, improving comfort.
It allows for easy wound cleaning and back wiping without compromising fixation effectiveness, improving patient comfort and wound healing safety.
Smart Images

Figure CN224155847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a sternal fixation belt for use after cardiac surgery. Background Technology
[0002] Cardiac surgery often requires open-chest surgery and sawing open the sternum. Post-operatively, to promote sternal healing, especially in older patients, a chest binder is used to apply pressure and stabilize the chest, thus promoting healing of the sternum and the incision. However, traditional chest binders are usually single-layered and are typically closed at the surgical wound site. When patients need to clean the wound, they must briefly loosen the binder, which restricts their movement. After cleaning, the binder must be tightened back onto the chest, causing discomfort, irritability, and restlessness, which is detrimental to sternal stabilization and wound healing. Utility Model Content
[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a sternal fixation belt for post-cardiac surgery that is both easy to clean wounds and can ensure the stability of the chest fixation position.
[0004] To solve the above-mentioned technical problems, the present invention provides a sternal fixation belt for post-cardiac surgery, comprising an adjustable belt assembly. One side of the adjustable belt assembly is connected to one end of a first clamping plate, and the other side of the adjustable belt assembly is connected to one end of a second clamping plate. The other end of the first clamping plate is connected to one end of an elastic band, and the other end of the elastic band is connected to the other end of the second clamping plate. A first cover plate is detachably provided between the first clamping plate and the second clamping plate at a position corresponding to the position of the adjustable belt assembly, and a second cover plate is detachably provided between the first clamping plate and the second clamping plate at a position corresponding to the position of the elastic band.
[0005] The above structure features two splints that securely fasten to the sternum from the left and right sides of the patient. The tension between the first and second splints can be adjusted according to the patient's body shape and the use of an adjustable strap assembly. Because there is a gap between the first and second splints, a detachable first cover is provided to conceal the wound and facilitate wound cleaning without loosening the splints. A detachable second cover helps maintain the tightness of the two splints and also facilitates wiping sweat or cleaning the patient's back, improving patient comfort. The structure is simple and easy to use.
[0006] To simplify the structure and facilitate use, preferably, the adjusting strap assembly includes a first strap and a second strap connected to and arranged in parallel with the first clamp. A tension adjustment mechanism is provided on the second clamp at the position corresponding to the first strap and the second strap. The two straps are respectively connected to the tension adjustment mechanism at their corresponding ends so as to adjust the distance between the two clamps to adapt to the patient's body shape.
[0007] To accommodate patients of different body types, the tension adjustment mechanism preferably includes a buckle frame connected to the second clamp on one side, two guide grooves symmetrically arranged on the inner wall of the other side of the buckle frame, a connecting rod between the two guide grooves, and a buckle on the connecting rod. The two ends of the connecting rod extend into the guide grooves at their respective ends. Each strap has a positioning hole at the position corresponding to the buckle, and the buckle extends into the positioning hole to fix the position of the strap.
[0008] To facilitate the rapid movement of the connecting rod into place, preferably, a compression spring is provided in the guide groove. One end of the compression spring is connected and fixed to the groove wall of the guide groove, and the other end of the compression spring is connected and fixed to the end of the connecting rod that extends into the guide groove.
[0009] In order to facilitate the movement of the limiting connecting rod and prevent the buckle from moving out of the positioning hole, it is preferable that a limiting hole is provided on one side of the buckle frame (13) at the position corresponding to the guide groove, and a limiting rod is inserted into the limiting hole. The protruding end of the limiting rod extends into the guide groove and abuts against the corresponding end of the connecting rod so as to position the connecting rod.
[0010] To simplify the installation structure and facilitate use, preferably, a sleeve is connected to the first clamping plate, and an insertion rod is provided on one side of the first cover plate at the position corresponding to the sleeve. The insertion rod is inserted into the sleeve so that the first cover plate can be flipped on the first clamping plate for use. The other side of the first cover plate is fixed to the second clamping plate by a first Velcro fastener.
[0011] To ensure the comfort of female patients, it is preferable that both the first and second splints have recessed relief grooves at the positions corresponding to the patient's chest, and a sponge pad is connected in the relief grooves.
[0012] To simplify the installation structure and facilitate use, preferably, the first clamp is fixedly connected to one side of the connecting strap, the other side of the connecting strap is connected to one side of the second cover plate, and the other side of the second cover plate is fixed to the second clamp plate by a second Velcro fastener.
[0013] To avoid injuring the patient, it is preferable that padding is provided on the inner sidewalls of both the first and second splints.
[0014] To ensure breathability of the skin at the site of the bandage, it is preferable that both of the splints and the cover are provided with ventilation holes.
[0015] Beneficial effects: The present invention features an adjustable strap assembly on the two splints, which facilitates adjustment of tightness and allows for easy loosening of the two splints without repeated tightening; the two cover plates facilitate the covering and cleaning of the wound, as well as the cleaning of the patient's back, ensuring the safety of wound healing and improving patient comfort. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 for Figure 1 Rear view.
[0019] Figure 3 for Figure 1 Enlarged view of point A in the image.
[0020] The meanings of the labels in the attached diagram are as follows:
[0021] First strap-11; First strap-11; Positioning hole-110; Second strap-12; Buckle frame-13; Guide groove-131; Connecting rod-132; Buckle rod-133; Compression spring-134; Limiting hole-135; Limiting rod-136;
[0022] First clamping plate-21; Second clamping plate-22; Sleeve-23; Relief groove-24; Sponge pad-25; Liner-26;
[0023] Elastic band -3; Ventilation holes -30;
[0024] First cover plate - 41; Second cover plate - 42; Insert rod - 43;
[0025] First Velcro strap - 51; Second Velcro strap - 52; Connecting strap - 6. Detailed Implementation
[0026] Depend on Figure 1 , Figure 2 and Figure 3As shown, this utility model includes an adjusting belt assembly. One side of the adjusting belt assembly is connected to one end of a first clamping plate 21, and the other side of the adjusting belt assembly is connected to one end of a second clamping plate 22. The other end of the first clamping plate 21 is connected to one end of an elastic band 3, and the other end of the elastic band 3 is connected to the other end of the second clamping plate 22. A first cover plate 41 is detachably provided between the first clamping plate 21 and the second clamping plate 22 at the position corresponding to the adjusting belt assembly, and a second cover plate 42 is detachably provided between the first clamping plate 21 and the second clamping plate 22 at the position corresponding to the elastic band 3.
[0027] Specifically, the adjustment strap assembly includes a first strap 11 and a second strap 12 connected to and arranged in parallel with the first clamp 21. A tension adjustment mechanism is provided on the second clamp 22 at the positions corresponding to the first strap 11 and the second strap 12. The two straps are respectively connected to the tension adjustment mechanism at their corresponding ends so as to adjust the distance between the two clamps to adapt to the patient's body shape.
[0028] The tension adjustment mechanism includes a buckle frame 13 connected to the second clamping plate 22 on one side. Two guide grooves 131 are symmetrically provided on the inner wall of the other side of the buckle frame 13. A connecting rod 132 is provided between the two guide grooves 131. A buckle 133 is provided on the connecting rod 132. The two ends of the connecting rod 132 extend into the guide grooves 131 at the corresponding ends. A positioning hole 110 is provided on each strap at the position corresponding to the buckle 133. The buckle 133 extends into the positioning hole 110 to fix the position of the strap.
[0029] A compression spring 134 is provided in the guide groove 131. One end of the compression spring 134 is connected and fixed to the groove wall of the guide groove 131, and the other end of the compression spring 134 is connected and fixed to the end of the connecting rod 132 that extends into the guide groove 131. A limiting hole 135 is provided on one side of the buckle frame 13 at the position corresponding to the guide groove 131. A limiting rod 136 is inserted into the limiting hole 135. The protruding end of the limiting rod 136 extends into the guide groove 131 and abuts against the corresponding end of the connecting rod 132 to position the connecting rod 132.
[0030] A sleeve 23 is connected to the first clamping plate 21. A rod 43 is provided on one side of the first cover plate 41 at a position corresponding to the sleeve 23. The rod 43 is inserted into the sleeve 23 so that the first cover plate 41 can be flipped on the first clamping plate 21. The other side of the first cover plate 41 is fixedly connected to the second clamping plate 22 by a first Velcro 51. The first clamping plate 21 is fixedly connected to one side of the connecting strap 6. The other side of the connecting strap 6 is connected to one side of the second cover plate 42. The other side of the second cover plate 42 is fixedly connected to the second clamping plate 22 by a second Velcro 52.
[0031] Both the first clamp 21 and the second clamp 22 are provided with recessed relief grooves 24 at positions corresponding to the patient's chest, and a sponge pad 25 is connected in the relief grooves 24.
[0032] Pads 26 are provided on the inner sidewalls of the first clamping plate 21 and the second clamping plate 22; ventilation holes 30 are provided on both clamping plates and the cover plate.
[0033] The working principle of this utility model is as follows:
[0034] Both the first splint 21 and the second splint 22 are arc-shaped structures and can be fitted around the outside of the patient's torso, such as... Figures 1 to 3 As shown, when in use, the first strap 11 and the second strap 12 are in a loose state, and the first clamp 21 and the second clamp 22 are connected only by the elastic band 3. In order to balance the force, the elastic band 3 is also set as two parallel strips, and is set parallel to the positions of the first strap 11 and the second strap 12 respectively; at the same time, the first cover plate 41 and the second cover plate 42 are also in an open state.
[0035] Thus, when the first splint 21 and the second splint 22 are placed on the left and right sides of the patient respectively, the two splints can be adapted to the patient's body shape and first spread out to the left and right sides. Due to the effect of the elastic band 3, the inner walls of the two splints always maintain the clamping shape on the left and right sides of the patient's chest.
[0036] Then, pull the non-connecting end of the first strap 11 through one side of the buckle frame 13, thereby moving the first splint 21 towards the second splint 22. This must be done within the patient's exhalation cycle, that is, shortening the distance between the first splint 21 and the second splint 22 at the patient's chest position. Once the first splint 21 is in place without affecting the patient's breathing, pull the first strap 11 straight up with one hand, push the connecting rod 132 with the other hand, and lift the buckle 133 with one finger, inserting the buckle 133 into the second splint 22. In the positioning hole 110 on the first strap 11, the first strap 11 is then rotated downwards so that the non-connecting end of the first strap 11 passes around the connecting rod 132 and passes through one side of the buckle frame 13. Immediately afterwards, a limiting rod 136 is passed through the limiting hole 135. The protruding end of the limiting rod 136 extends into the guide groove 131 and abuts against the corresponding end of the connecting rod 132. Since the connecting rod 132 is connected to a compression spring 134, the connecting rod 132 is positioned and the buckle 133 is prevented from moving out of the positioning hole 110, thus preventing the first strap 11 from loosening.
[0037] Similarly, the second strap 12 is also wrapped around and fixed to the buckle frame 13 on the corresponding side, and is stopped by the limiting rod 136 on the corresponding side; finally, the first cover plate 41 and the second clamping plate 22 are glued and fixed together by the first Velcro 51, and the second cover plate 42 and the second clamping plate 22 are glued and fixed together by the second Velcro 52.
[0038] For ease of use, multiple limiting holes 135 should be provided to accommodate the body shape needs of various patients. Since the strap is tightened during the patient's exhalation, the gap between the two splints has been reduced to a position that only ensures the patient can breathe normally. At this time, with the taut strap in a limiting state, the patient's breathing, which drives the chest and the expansion and contraction of the two splints, cannot be transmitted through the compression spring 134. That is, under the combined action of the elastic force of the compression spring 134 and the limiting rod 136, it is first ensured that the compression spring 134 cannot rebound into place, and secondly, it is ensured that the strap does not have enough displacement, thus fully preventing the buckle 133 from moving out of the positioning hole 110.
[0039] As the patient recovers after surgery, the buckle 133 is inserted into the corresponding positioning hole 110 to gradually loosen the tightness of the bandage, facilitating the patient's faster recovery of cardiothoracic function.
[0040] When it is necessary to clean the wound, simply pull open the first Velcro 51 at the first cover plate 41 so that the first cover plate 41 can rotate on the first clamp plate 21 around the center of the rod 43 inserted in the sleeve 23. If the positions of the first strap 11 and the second strap 12 interfere with the cleaning of the wound, first pull out the limiting rod 136 on the first strap 11. Under the elastic force of the compression spring 134, the connecting rod 132 and the buckle 133 will move back synchronously. Without moving the first strap 11, the buckle 133 can be easily moved out of the positioning hole 110 without pulling the first strap 11 to make the two clamp plates move relative to each other in a clamping position. This can avoid squeezing the chest and causing discomfort. Then pull out the first strap 11 from the buckle frame 13. After cleaning the wound, reconnect the first strap 11 according to the above-mentioned operation. Then, untie the second strap 12 according to the above-mentioned operation and fasten the second strap 12 after cleaning the wound at the corresponding position.
[0041] Similarly, when it is necessary to wipe the patient's sweat or perform a cleaning, simply pull open the first Velcro 52 at the second cover 42. The second cover 42 can be opened even when the patient is not lying down after a period of recovery. The first cover 41, in order to prevent bacterial contamination of the wound, cannot be opened arbitrarily. It can only be opened as appropriate after the wound has scabbed over, so as to allow air circulation at the wound site.
[0042] It should be noted that, in order to avoid causing abrasions to the patient during use, pads 26 are provided on the inner walls of the first splint 21 and the second splint 22. At the same time, in order to protect the patient's skin at the splint position as much as possible, ventilation holes 30 are provided on both splints and the cover plate. In order to prevent the splint from shifting downward, a shoulder strap 7 is also provided on the splint to hang on the patient's shoulder. The shoulder strap 7 is a common feature and will not be described in detail here.
[0043] Furthermore, since heart surgery is performed on the chest, close to the breasts, the clamping of the two splints can cause significant compression on the chest of female patients, making them uncomfortable. To avoid this compression affecting normal breathing and to improve patient comfort, relief grooves 24 are provided on the two splints at the corresponding positions on the chest, with sponge pads 25 connected within these grooves. When the two splints are pulled and tightened, the female patient's breast protrudes from the relief grooves 24, pushing against the sponge pads 25, and the protruding breast is always supported by the sponge pads 25, providing good protection for the breast during the recovery phase. This design does not cause any discomfort or interference for male patients or patients with small breasts, making it widely applicable.
Claims
1. A sternal fixation band for use after cardiac surgery, characterized in that: The system includes an adjusting belt assembly, one side of which is connected to one end of a first clamping plate (21), and the other side of which is connected to one end of a second clamping plate (22). The other end of the first clamping plate (21) is connected to one end of an elastic band (3), and the other end of the elastic band (3) is connected to the other end of the second clamping plate (22). A first cover plate (41) is detachably provided between the first clamping plate (21) and the second clamping plate (22) at a position corresponding to the adjusting belt assembly, and a second cover plate (42) is detachably provided between the first clamping plate (21) and the second clamping plate (22) at a position corresponding to the elastic band (3).
2. A sternal fixation band for use after cardiac surgery as claimed in claim 1, characterized in that: The adjustment belt assembly includes a first strap (11) and a second strap (12) connected to and parallel to the first clamp (21). A tension adjustment mechanism is provided on the second clamp (22) at the position corresponding to the first strap (11) and the second strap (12). The two straps are respectively connected to the tension adjustment mechanism at their corresponding ends so as to adjust the distance between the two clamps to adapt to the patient's body shape.
3. A sternal fixation band for use after cardiac surgery as claimed in claim 2, characterized in that: The tension adjustment mechanism includes a buckle frame (13) connected to the second clamping plate (22) on one side. Two guide grooves (131) are symmetrically provided on the inner wall of the buckle frame (13) on the other side. A connecting rod (132) is provided between the two guide grooves (131). A buckle (133) is provided on the connecting rod (132). The two ends of the connecting rod (132) extend into the guide grooves (131) at the corresponding ends. A positioning hole (110) is provided at the position of the buckle (133) on each strap. The buckle (133) extends into the positioning hole (110) to fix the position of the strap.
4. A sternal fixation band for use after cardiac surgery as claimed in claim 3, characterized in that: A compression spring (134) is provided in the guide groove (131). One end of the compression spring (134) is connected and fixed to the groove wall of the guide groove (131), and the other end of the compression spring (134) is connected and fixed to one end of the connecting rod (132) that extends into the guide groove (131).
5. A sternal fixation band for use after cardiac surgery as claimed in claim 4, characterized in that: A limiting hole (135) is provided on one side of the buckle frame (13) at the position corresponding to the guide groove (131). A limiting rod (136) is inserted into the limiting hole (135). The protruding end of the limiting rod (136) extends into the guide groove (131) and abuts against the corresponding end of the connecting rod (132) so as to position the connecting rod (132).
6. A sternal fixation band for use after cardiac surgery as claimed in claim 3, characterized in that: A sleeve (23) is connected to the first clamping plate (21). A rod (43) is provided on one side of the first cover plate (41) at the position corresponding to the sleeve (23). The rod (43) is inserted into the sleeve (23) so that the first cover plate (41) can be flipped on the first clamping plate (21). The other side of the first cover plate (41) is fixed to the second clamping plate (22) by a first Velcro (51).
7. A sternal fixation band for use after cardiac surgery as claimed in claim 6, characterized in that: A recessed relief groove (24) is provided on the first splint (21) and the second splint (22) at the position corresponding to the patient's chest, and a sponge pad (25) is connected in the relief groove (24).
8. A sternal fixation band for use after cardiac surgery as claimed in claim 6, characterized in that: The first clamp (21) is fixedly connected to one side of the connecting strap (6), the other side of the connecting strap (6) is connected to one side of the second cover plate (42), and the other side of the second cover plate (42) is fixedly attached to the second clamp plate (22) by the second Velcro (52).
9. A sternal fixation band for use after cardiac surgery as claimed in claim 1, characterized in that: Padding (26) is provided on the inner sidewalls of the first clamping plate (21) and the second clamping plate (22).
10. A sternal fixation band for use after cardiac surgery as claimed in claim 2, wherein: Both clamps and the cover plate are provided with ventilation holes (30).