Adjustable sternum supporting device capable of delaying sternum closure

Abstract

The utility model discloses an adjustable delayed sternum support device which comprises a first main frame and a second main frame which are distributed in parallel, an adjusting assembly is fixedly arranged between the first main frame and the second main frame, adjustable telescopic assemblies are arranged at the two ends of the first main frame and the two ends of the second main frame respectively, clamping seats are arranged at the bottom ends of the telescopic assemblies, and the clamping seats are connected with the first main frame and the second main frame. And an adjusting arm is arranged between the telescopic assembly and the clamping seat. The main body frame is composed of the base frame and the elastic supporting frame, the relative positions of the base frame and the elastic supporting frame can be adjusted, the radian of the elastic supporting frame can be changed, and therefore the adjustable range of the whole supporting device is enlarged, the using requirement of most patients with congenital heart diseases is met, and the whole supporting strength of the device can be improved; according to the sternum supporting and fixing device, the stability of sternum supporting and fixing is achieved, through the arranged transparent protective film, a cavity between the main body frames can be covered, and therefore a temporary protection effect is achieved on an opening for sternum opening.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an adjustable delayed chest closure sternum support device. Background Art

[0002] Delayed chest closure is an important technique and measure during cardiac perioperative period, which can save the lives of many children. There are currently two clinical methods: one is to keep the sternum open after the operation, which is called primary delayed chest closure; the other is to close the sternum after the operation, and reopen the sternum if the circulation is unstable, which is called secondary delayed chest closure. Indications for delayed chest closure: 1. Poor postoperative cardiac function, enlarged heart, disproportionate to the size of the mediastinum, and manifestations such as decreased blood pressure, increased atrial pressure, weak heartbeat and arrhythmia after trial chest closure. 2. The need to install a cardiac assist device. 3. The use of artificial blood vessels or homologous valved conduits, the sternum compresses the conduit, causing unstable blood circulation. Currently, there is a lack of suitable delayed chest closure sternum spreaders for pediatric cardiac surgeons to choose from in the field of surgical treatment of congenital heart disease. Currently, the following methods are commonly used in pediatric cardiac surgery: 1. Directly suturing the skin edges; 2. Using a plastic syringe to open the sternum, cut the edges and secure them to the sternum. After freeing the subcutaneous tissue, the skin edges are sutured; 3. In addition to the previous method, surgical rubber gloves are cut into the desired shape and sutured to the skin edges without suturing the skin edges. The first method, because the sternum lacks support and cannot maintain the open position, the chest cavity volume is not fixed, and thus does not achieve the desired effect. The latter two methods require on-site processing of equipment, which prolongs the operation time. Furthermore, the equipment processed on-site is not standardized, making it difficult to secure and prone to slippage.

[0003] For example, a delayed chest closure sternum support frame with the authorization application number CN201210185600.0 is provided with a frame, which is arc-shaped, with a chord length of 3-5 cm and an arc of 10-40 degrees; a tiger's mouth-shaped slot is provided at each end of the frame, and the two side groove surfaces of the slot are perpendicular to the arc surface of the frame; the slot is provided with an upper support arm and a lower support arm, and the upper support arm is shorter than the lower support arm; the upper support arm and the lower support arm are each provided with a threading hole; the frame is made of metal. Its advantages are: the slot can firmly clamp the split sternum on both sides; the threading hole can facilitate suturing and fixation, further preventing the frame from slipping toward the patient's head or feet, and slipping inside and outside the sternum; the frame curvature is reasonably designed to maintain the incision at an appropriate width; the overall structure is strong and durable; and the integrated design is convenient for use and production.

[0004] The design of the delayed chest closure sternum support device mentioned above and in the prior art still has some drawbacks and cannot well assist in the treatment of congenital heart disease. The main problems are that a single support frame is used to support the sternum, and its support strength is insufficient, which easily leads to slipping when supporting the sternum, causing secondary damage to the patient. At the same time, its adjustment flexibility is poor, and the support device cannot be adjusted to a large range of multiple positions, resulting in many support devices being unsuitable for the treatment of congenital heart disease patients with different physiques. Moreover, after supporting the sternum, the general support device is mostly in an open state, and medical staff can only use simple rubber gloves to cut into the appropriate size and sew it first. Not only is the operation troublesome, but it is also impossible to observe the patient's heart condition. Therefore, it is urgent to design an adjustable delayed chest closure sternum support device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable delayed chest closure sternum support device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] An adjustable delayed chest closure sternum support device comprises a main frame 1 and a main frame 2 arranged in parallel, an adjustment component fixedly disposed between the main frame 1 and the main frame 2, an adjustable telescopic component disposed at both ends of the main frame 1 and the main frame 2, a base disposed at the bottom end of the telescopic component, an adjustment arm disposed between the telescopic component and the base, and a transparent protective film disposed on the telescopic component that can cover the cavity between the main frame 1 and the main frame 2 when laid flat;

[0008] Furthermore, the structures of the main frame 1 and the main frame 2 are exactly the same, and both the main frame 1 and the main frame 2 have a certain curvature;

[0009] Furthermore, the main frame includes a base frame located below, an elastic support frame is provided above the base frame, sliding grooves are opened on the inner walls of both sides of the elastic support frame, and sliders embedded in the sliding grooves are fixedly provided at both ends of the bottom of the base frame, a bearing seat is fixedly provided on the outer wall of the top of the base frame, and a self-locking screw rod is inserted into the inside of the bearing seat, the external thread of the self-locking screw rod is connected with a threaded sleeve, and the threaded sleeve is fixedly installed on the outer wall of the top of the elastic support frame, and a rotating cap is fixedly installed on the top of the self-locking screw rod; further, the base frame is made of aluminum alloy hard material, and the elastic support frame can be made of elastic metal sheet;

[0010] Furthermore, the adjustment assembly includes a fixed plate 1 fixedly mounted on the main frame 1 and a fixed plate 2 fixedly mounted on the main frame 2, the same core plate is plugged into the interior of the opposite sides of the fixed plate 1 and the fixed plate 2, a limiting mechanism is provided between the core plate and the fixed plate 1 and the fixed plate 2, and a through hole is provided on one side of the top of the core plate for plugging in the drainage tube.

[0011] Furthermore, the limiting mechanism includes a positioning seat fixedly mounted on fixed plate one and fixed plate two, and an elastic pin with a reset structure is inserted into the interior of the positioning seat, and a plurality of slots are opened on the outer wall of the top of the core plate, and the bottom end of the elastic pin is clamped in the interior of the slot.

[0012] Furthermore, the telescopic assembly includes a pull-out plate inserted into a hole at one end of the main frame, a support is fixedly installed at the bottom end of the pull-out plate, a plurality of positioning holes are opened on the outer wall of the pull-out plate, and a positioning pin that cooperates with the positioning hole is provided on the top outer wall of the main frame near the pull-out plate.

[0013] Furthermore, the holder includes a seat body, and a clamping ring is provided on the outer wall of the bottom of the seat body, and an elastic rubber pad is fixedly provided on the inner wall of the clamping ring.

[0014] Furthermore, the adjusting arm includes a fixed hinge seat fixedly mounted on the support and the seat body, and the two fixed hinge seats are respectively provided with a rotatable connecting arm 1 and connecting arm 2, and a movable hinge seat is provided at one end where the connecting arm 1 and the connecting arm 2 intersect, and the ends of the fixed hinge seat and the movable hinge seat are both provided with locking nuts.

[0015] Furthermore, the transparent protective film is a transparent sterile PU film.

[0016] Beneficial effect: In the above technical solution, the utility model provides an adjustable delayed chest closure sternum support device, which is composed of a base frame and an elastic support frame through the main frame. By adjusting the self-locking screw rod, the relative positions of the base frame and the elastic support frame can be adjusted, and the curvature of the elastic support frame can be changed, thereby improving the adjustable range of the overall support device, meeting the use of most patients with congenital heart disease, and also improving the overall support strength of the device, achieving the stability of the sternum support fixation, and the transparent protective film can be provided to cover the cavity between the main frames, thereby temporarily protecting the opening of the sternum, eliminating the need to use disposable plastic gloves. The operation of suturing the skin is carried out, and the transparent protective film is used. The heart condition can be observed at any time without peeling off the transparent protective film; the span between the two main frames can be adjusted through the adjustment component to meet the size of different chest openings, and the telescopic component can be used along the length of the elastic support to achieve better support for the sternum. The adjustment arm used can control the clamping angle of the bracket to the sternum, and can also limit the position to ensure the stability between the bracket and the sternum and avoid the bracket from slipping; a perforation for inserting the drainage tube is provided on one side of the top of the core plate, without the need for additional holes or fixing the drainage tube, which is convenient for timely drainage of the accumulated fluid in the chest cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of an adjustable delayed chest closure sternum support device of the present invention.

[0019] Figure 2 This is a schematic diagram of the base frame and elastic support structure provided in an embodiment of an adjustable delayed chest closure sternum support device of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of an adjustment component provided in an embodiment of an adjustable delayed chest closure sternum support device of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of a covering transparent protective film provided in an embodiment of an adjustable delayed chest closure sternum support device of the present invention.

[0022] Figure 5 This is a partially enlarged structural schematic diagram of an embodiment of an adjustable delayed chest closure sternum support device provided by the utility model.

[0023] Figure 6 This is a schematic structural diagram of a transparent protective film rolled up before installation, provided in an embodiment of an adjustable delayed chest closure sternum support device of the present invention.

[0024] Description of reference numerals:

[0025] 1 Main frame 1, 11 base frame, 12 elastic support frame, 13 bearing seat, 14 threaded sleeve, 15 self-locking screw, 16 rotating cap, 17 slide groove, 18 slider, 2 Main frame 2, 3 adjustment component, 31 fixed plate 1, 32 fixed plate 2, 33 core plate, 34 slot, 35 positioning seat, 36 elastic pin, 37 perforation, 4 telescopic component, 41 support, 42 pull-out plate, 43 positioning hole, 44 positioning pin, 5 seat, 51 seat body, 52 snap ring, 53 elastic rubber pad, 6 adjustment arm, 61 fixed hinge seat, 62 connecting arm 1, 63 movable hinge seat, 64 connecting arm 2, 65 locking nut, 7 transparent protective film. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, an adjustable delayed chest closure sternum support device provided by an embodiment of the present invention includes a main frame 1 and a main frame 2 distributed in parallel, an adjustment component 3 is fixedly arranged between the main frame 1 and the main frame 2, the main frame 1 and the main frame 2 and the adjustment component constitute the overall structure of the device, which is an I-shaped structure, has a greater support strength for the sternum, and is also suitable for use in cases where the chest opening is large, the adjustment component 3 can adjust the span between the main frame 1 and the main frame 2, and is more flexible and convenient to use, and both ends of the main frame 1 and the main frame 2 are provided with an adjustable telescopic component 4, which can be extended by The telescopic component 4 can extend the length of the main frame 1 and the main frame 2. A holder 5 is provided at the bottom end of the telescopic component 4. An adjusting arm 6 is provided between the telescopic component 4 and the holder 5. The angle of the holder can be controlled by the adjusting arm 6 to achieve better clamping support for the sternum. The telescopic component 4 is provided with a transparent protective film 7 which can cover the cavity between the main frame 1 and the main frame 2 after being laid flat. The transparent protective film 7 is a transparent sterile PU film. The transparent protective film 7 can be directly applied to the telescopic component and people's chest skin to temporarily cover and protect the opening of the chest, thereby preventing the patient from suffering secondary injury.

[0028] The utility model provides an adjustable delayed chest closure sternum support device, which is composed of a main frame 11 and an elastic support frame 12. By adjusting the self-locking screw 15, the relative positions of the base frame 11 and the elastic support frame 12 can be adjusted, and the curvature of the elastic support frame 12 can be changed, thereby improving the adjustable range of the overall support device, meeting the use of most patients with congenital heart disease, and also improving the overall support strength of the device, achieving the stability of sternal support fixation, and the transparent protective film 7 can be provided to cover the cavity between the main frames, thereby temporarily protecting the opening of the sternum support. The transparent protective film 7 is an integral structure, and an isolation paper is provided on the back thereof. The isolation paper is a two-piece structure. When using the transparent protective film 7, since the two ends of the transparent protective film 7 are in a rolled-up state, it is necessary to peel off the isolation paper interface in the middle of the transparent protective film 7, and peel off the two pieces of isolation paper to both sides respectively, and then unfold the transparent protective film 7 to both sides along the main frame and stick it on the skin around the chest opening, so as to achieve temporary covering of the wound by using the transparent protective film 7.

[0029] In the embodiment provided by the present invention, the structures of the main frame 1 and the main frame 2 2 are exactly the same, and both the main frame 1 and the main frame 2 2 have a certain curvature. The two annularly arranged main frames can achieve a stable support effect on the sternum and improve the stability of the sternum support.

[0030] The main frame 1 includes a base frame 11 located at the bottom, and an elastic support frame 12 is arranged above the base frame 11. Slide grooves 17 are opened on the inner walls on both sides of the elastic support frame 12, and sliders 18 embedded in the slide grooves 17 are fixedly provided at both ends of the bottom of the base frame 11. A bearing seat 13 is fixedly provided on the outer wall of the top of the base frame 11, and a self-locking screw rod 15 is inserted into the inside of the bearing seat 13. The external thread of the self-locking screw rod 15 is sleeved with a threaded sleeve 14, and the threaded sleeve 14 is fixedly installed on the outer wall of the top of the elastic support frame 12, and a rotating cap 16 is fixedly installed on the top of the self-locking screw rod 15; the operator drives the self-locking screw rod 15 to rotate by rotating the cap 16 according to the size of the chest opening, so that the elastic support frame 12 is adjusted up and down, and the slider 18 slides inside the slide groove 17, thereby changing the curvature of the elastic support frame 12 to meet the use of different chest opening sizes.

[0031] In the embodiment provided by the present invention, the base frame 11 is made of aluminum alloy hard material, and the elastic support frame 12 can be made of elastic metal sheets. The frame 11 basically will not deform, and has the effect of reinforcing the support, while the elastic support frame 12 can deform, thereby changing different curvatures to achieve a supporting effect for chest openings of different sizes.

[0032] In the embodiment provided by the present invention, the adjustment component 3 includes a fixing plate 1 31 fixedly mounted on the main frame 1 and a fixing plate 2 32 fixedly mounted on the main frame 2, and the fixing plate 1 31 and the fixing plate 2 32 are internally plugged with the same core plate 33 on the opposite side. A limiting mechanism is provided between the core plate 33 and the fixing plate 1 31 and the fixing plate 2 32. A perforation 37 for plugging in a drainage tube is provided on one side of the top of the core plate 33, without the need for additional holes or fixed drainage tubes, so that the effusion in the chest cavity can be drained out in time; the limiting mechanism includes a positioning seat 35 fixedly mounted on the fixing plate 1 31 and the fixing plate 2 32, and the internal plug of the positioning seat 35 is provided. It is connected to an elastic pin 36 with a reset structure, and a plurality of slots 34 are opened on the outer wall of the top of the core plate 33, and the bottom end of the elastic pin 36 is clamped in the inside of the slot 34. The operator pulls out the elastic pin 36 to release the limit between the core plate 35 and the fixed plate 1 31 and the fixed plate 2 32, so that the core plate can slide freely between the fixed plate 1 31 and the fixed plate 2 32, thereby adjusting the length of the entire adjustment component 3 and realizing the adjustment of the span between the two main frames. After the length of the adjustment component 3 is determined, the elastic pin 36 is released so that the elastic pin 36 is clamped in the inside of the slot 34, and the adjustment component 3 can be re-limited.

[0033] Among them, the telescopic component 4 includes a pull-out plate 42 inserted into the end hole of the main frame 1, a support 41 is fixedly installed on the bottom end of the pull-out plate 42, and a plurality of positioning holes 43 are opened on the outer wall of the pull-out plate 42. A positioning pin 44 that cooperates with the positioning hole 43 is provided on the top outer wall of the main frame 1 near the pull-out plate 42. The operator pulls out the positioning pin 44 from the inside of the positioning hole 43, so that the pull-out plate 42 can be extended and retracted from the main frame 1, thereby adjusting the length of the entire main frame 1.

[0034] Preferably, the holder 5 includes a seat body 51, and a snap ring 52 is provided on the outer wall of the bottom of the seat body 51, and the sternum is clamped and fixed by the snap ring 52. An elastic rubber pad 53 is fixed on the inner wall of the snap ring 52, and the elastic rubber pad 53 protects the contact position of the sternum.

[0035] In the embodiment provided by the present invention, the adjusting arm 6 includes a fixed hinge seat 61 fixedly mounted on the support 41 and the seat body 51, and a rotatable connecting arm 1 62 and a connecting arm 2 64 are respectively provided on the two fixed hinge seats 61, and a movable hinge seat 63 is provided at the end where the connecting arm 1 62 and the connecting arm 2 64 intersect. The ends of the fixed hinge seat 61 and the movable hinge seat 63 are both provided with locking nuts 65. The operator adjusts the angle of the connecting arm 1 62 and the connecting arm 2 64 so that the connecting arm 1 62 and the connecting arm 2 64 can rotate along the fixed hinge seat 61 and the movable hinge seat 63, thereby realizing the adjustment of the angle of the clamping seat 5, and the rotation limitation of the fixed hinge seat 61 and the movable hinge seat 63 is realized by the locking nut 65.

[0036] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An adjustable delayed chest closure sternum support device, comprising a main frame 1 (1) and a main frame 2 (2) arranged in parallel, characterized in that: An adjusting component (3) is fixedly provided between the main frame 1 (1) and the main frame 2 (2), and adjustable telescopic components (4) are provided at both ends of the main frame 1 (1) and the main frame 2 (2), and a base (5) is provided at the bottom end of the telescopic component (4), and an adjusting arm (6) is provided between the telescopic component (4) and the base (5), and a transparent protective film is provided on the telescopic component (4) which can cover the cavity between the main frame 1 (1) and the main frame 2 (2) after being laid flat; The main frame (1) includes a base frame (11) located below, an elastic support frame (12) is provided above the base frame (11), a slide groove (17) is provided on the inner walls of both sides of the elastic support frame (12), and sliders (18) embedded in the slide grooves (17) are fixedly provided at both ends of the bottom of the base frame (11), a bearing seat (13) is fixedly provided on the outer wall of the top of the base frame (11), and a self-locking screw rod (15) is inserted into the interior of the bearing seat (13), the external thread of the self-locking screw rod (15) is connected with a threaded sleeve (14), and the threaded sleeve (14) is fixedly installed on the outer wall of the top of the elastic support frame (12), and a rotating cap (16) is fixedly installed on the top of the self-locking screw rod (15); The adjustment assembly (3) comprises a fixing plate 1 (31) fixedly mounted on the main frame 1 (1) and a fixing plate 2 (32) fixedly mounted on the main frame 2 (2), wherein the fixing plate 1 (31) and the fixing plate 2 (32) are internally connected to the opposite sides thereof with a same core plate (33), a limiting mechanism is provided between the core plate (33) and the fixing plate 1 (31) and the fixing plate 2 (32), and a through hole (37) is provided on one side of the top of the core plate (33).

2. The adjustable delayed chest closure sternum support device according to claim 1, characterized in that: The limiting mechanism includes a positioning seat (35) fixedly mounted on the fixing plate 1 (31) and the fixing plate 2 (32), and an elastic pin (36) with a reset structure is inserted into the interior of the positioning seat (35). A plurality of slots (34) are formed on the outer wall of the top of the core plate (33), and the bottom end of the elastic pin (36) is clamped in the interior of the slot (34).

3. The adjustable delayed chest closure sternum support device according to claim 1, characterized in that: The telescopic assembly (4) includes a pull-out plate (42) inserted into the end hole of the main frame (1), a support (41) is fixedly installed at the bottom end of the pull-out plate (42), a plurality of positioning holes (43) are opened on the outer wall of the pull-out plate (42), and a positioning pin (44) that matches the positioning hole (43) is provided on the top outer wall of the main frame (1) near the pull-out plate (42).

4. The adjustable delayed chest closure sternum support device according to claim 3, characterized in that: The clamping seat (5) comprises a seat body (51), and a clamping ring (52) is provided on the outer wall of the bottom of the seat body (51), and an elastic rubber pad (53) is fixedly provided on the inner wall of the clamping ring (52).

5. The adjustable delayed chest closure sternum support device according to claim 4, characterized in that: The adjusting arm (6) includes a fixed hinge seat (61) fixedly mounted on the support (41) and the seat body (51), and a rotatable connecting arm 1 (62) and a rotatable connecting arm 2 (64) are respectively provided on the two fixed hinge seats (61). A movable hinge seat (63) is provided at one end where the connecting arm 1 (62) and the connecting arm 2 (64) intersect, and a locking nut (65) is provided at the end of each of the fixed hinge seat (61) and the movable hinge seat (63).

6. The adjustable delayed chest closure sternum support device according to claim 1, characterized in that: The transparent protective film (7) is a transparent sterile PU film.

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