Skin pressure stabilizer applied after external fixation frame operation

Abstract

The utility model discloses a skin pressure stabilizer applied after an external fixation frame operation. The skin pressure stabilizer comprises an external fixation frame assembly. The pressure stabilizing assembly comprises a fixing plate, a fixing circular ring, a supporting rod, a baffle ring, a first telescopic spring, a supporting circular ring and an air cushion; the fixing plate is clamped to the outer side of the outer fixing frame body, the fixing ring is fixedly connected to the inner side of the fixing plate, the supporting rod penetrates through the two sides of the fixing ring and extends outwards, the baffle ring is fixedly connected to the outer surface of one end of the supporting rod, and the first telescopic spring is fixedly connected to the outer side of the baffle ring. The position of a supporting rod in a fixing circular ring is moved, the supporting rod is fixed through a nut, the supporting rod drives a baffle ring and a first telescopic spring to apply outward pressure to a supporting circular ring, the supporting circular ring applies outward pressure to an air cushion, and therefore the air cushion can be attached to the outer surface of the skin; and the skin is continuously and stably pressed down, so that friction between skin muscles and the steel needle is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a skin pressure stabilizer used after external fixation surgery. Background Art

[0002] External fixator surgery is a surgical method for treating fractures. Its main advantages are less trauma, less stripping of the bone surface periosteum, and better fracture healing. During external fixator surgery, steel pins need to be nailed into the body.

[0003] After the existing steel needle is nailed into the body, although gauze is wrapped around the outer surface of the steel needle, the skin and muscles will rub back and forth with the steel needle, causing fluid to seep into the needle tract, which has the risk of causing infection. The gauze wrapping is relatively cumbersome, and the pressure of the gauze on the skin cannot be maintained stable. Therefore, it is necessary to provide a device that can stably prevent the friction between the skin and muscles and the steel needle to protect the needle tract. Utility Model Content

[0004] The purpose of the present invention is to provide a skin pressure stabilizer for use after external fixation surgery, so as to solve the problem in the above-mentioned background technology that after the existing steel needle is nailed into the body, the skin and muscles will rub back and forth with the steel needle, causing needle tract exudation and posing a risk of infection.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a skin pressure stabilizer used after external fixation surgery, comprising:

[0007] An external fixator assembly, the external fixator assembly comprising an external fixator body;

[0008] A pressure stabilization assembly, comprising a fixing plate, a fixing ring, a support rod, a retaining ring, a first telescopic spring, a support ring, and an air cushion;

[0009] The fixing plate is clamped to the outer side of the outer fixing frame body, the fixing ring is fixedly connected to the inner side of the fixing plate, the support rod passes through both sides of the fixing ring and extends outward, the retaining ring is fixedly connected to the outer surface of one end of the support rod, the first telescopic spring is fixedly connected to the outer side of the retaining ring, the supporting ring is fixedly connected to the other end of the first telescopic spring, and the air cushion is fixedly connected to the outer side of the supporting ring.

[0010] Furthermore, the external fixator assembly further includes a steel pin;

[0011] The steel needle passes through the interior of the external fixator body and extends outward.

[0012] Furthermore, the air cushion is located outside the steel needle and has a circular ring structure.

[0013] Furthermore, a threaded structure is provided on the outer surface of the support rod, and one end of the support rod is located on one side inside the first telescopic spring.

[0014] Furthermore, it also includes a movable component, which includes a fixing hole, a through hole, a second telescopic spring, a baffle and a limiting column;

[0015] The fixing hole is opened at the outer side of the outer fixing frame body, the through hole is opened at the outer end of the fixing plate, the second telescopic spring is fixedly connected to the outer side of the fixing plate, the baffle is fixedly connected to the outer end of the second telescopic spring, and the limiting column is fixedly connected to the inner side of the baffle.

[0016] Furthermore, the fixing hole and the through hole are square structures, and the center line of the fixing hole coincides with the center line of the steel needle, and the limiting column extends inward through the through hole.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. The utility model sets a pressure stabilization component, moves the position of the support rod in the fixed ring, and fixes the support rod with a nut, so that the support rod drives the retaining ring and the first telescopic spring to apply outward pressure to the support ring, and the support ring applies outward pressure to the air cushion, so that the air cushion can fit on the outer surface of the skin, continuously and stably press down the skin, avoid friction between the skin muscles and the steel needle, and the air cushion can effectively avoid damaging the skin. At the same time, by moving the support rod, the air cushion can be prevented from pressing the skin for a long time.

[0019] 2. Based on the first beneficial effect, by setting up a movable component and passing the limit column through the through hole and the fixing hole, the limit column can fix the fixing plate on the external fixation frame body, and the fixing plate drives the center line of the fixing ring and the center line of the steel needle to remain in a collinear state, avoiding contact between the air cushion and the steel needle, and facilitating the installation and disassembly of the pressure stabilization component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is the main view of the utility model;

[0022] Figure 2 This is a structural diagram of the external fixator assembly of the utility model;

[0023] Figure 3 This is a structural diagram of the pressure stabilization component of the utility model;

[0024] Figure 4 This is a structural diagram of the active components of the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 11. External fixator body; 12. Steel needle; 21. Fixing plate; 22. Fixing ring; 23. Support rod; 24. Retaining ring; 25. First telescopic spring; 26. Supporting ring; 27. Air cushion; 31. Fixing hole; 32. Through hole; 33. Second telescopic spring; 34. Retaining plate; 35. Limiting column. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0031] See also Figure 1-3 As shown, this embodiment is a skin pressure stabilizer used after external fixation surgery, comprising:

[0032] An external fixator assembly, the external fixator assembly comprising an external fixator body 11;

[0033] A pressure stabilization assembly, comprising a fixing plate 21, a fixing ring 22, a support rod 23, a retaining ring 24, a first telescopic spring 25, a support ring 26 and an air cushion 27;

[0034] The fixing plate 21 is clamped to the outer side of the outer fixing frame body 11, the fixing ring 22 is fixedly connected to the inner side of the fixing plate 21, the support rod 23 extends outward through both sides of the fixing ring 22, the retaining ring 24 is fixedly connected to the outer surface of one end of the support rod 23, the first telescopic spring 25 is fixedly connected to the outer side of the retaining ring 24, the supporting ring 26 is fixedly connected to the other end of the first telescopic spring 25, and the air cushion 27 is fixedly connected to the outer side of the supporting ring 26;

[0035] The fixing plate 21 is used to support the fixing ring 22, the fixing ring 22 is used to support the support rod 23, the support rod 23 is used to support the retaining ring 24, the retaining ring 24 is used to support the first telescopic spring 25, the first telescopic spring 25 is used to apply pressure to the supporting ring 26, and the air cushion 27 is used to contact the skin;

[0036] The external fixator assembly further includes a steel pin 12;

[0037] The steel needle 12 passes through the interior of the external fixator body 11 and extends outward;

[0038] The external fixator body 11 is used to fix the steel needle 12, and the steel needle 12 is used to be nailed into the human body;

[0039] The air cushion 27 is located outside the steel needle 12 and has a circular ring structure.

[0040] The air cushion 27 applies downward pressure to the skin outside the steel needle 12 to prevent friction between the skin and the outside of the steel needle 12;

[0041] A threaded structure is provided on the outer surface of the support rod 23, and one end of the support rod 23 is located on one side of the interior of the first telescopic spring 25;

[0042] The support rod 23 can move inside the fixed ring 22, and can be fixed inside the fixed ring 22 by a nut;

[0043] Working principle: When it is necessary to apply stable pressure to the skin, the support rod 23 is moved to the internal position of the fixed ring 22, so that the support rod 23 drives the baffle ring 24 to move, and the baffle ring 24 drives the first telescopic spring 25 to move, so that the first telescopic spring 25 drives the support ring 26 and the air cushion 27 to move. When the air cushion 27 moves to contact the skin outside the steel needle 12, the support rod 23 is continued to be moved. Since the air cushion 27 is blocked by the skin, the first telescopic spring 25 is compressed to generate elastic force, and then the support rod 23 is fixed to the fixed ring 22 by a nut. At this time, the elastic force generated by the first telescopic spring 25 can continuously apply pressure to the support ring 26, so that the support ring 26 can continuously and stably apply pressure to the air cushion 27, thereby avoiding contact between the skin and the steel needle 12 and friction.

[0044] See also Figure 4 As shown, this embodiment is based on the above embodiment and also includes:

[0045] A movable assembly, comprising a fixing hole 31, a through hole 32, a second telescopic spring 33, a baffle 34 and a limiting column 35;

[0046] The fixing hole 31 is formed at the outer side of the outer fixing frame body 11, the through hole 32 is formed at the outer end of the fixing plate 21, the second telescopic spring 33 is fixedly connected to the outer side of the fixing plate 21, the baffle 34 is fixedly connected to the outer end of the second telescopic spring 33, and the limiting column 35 is fixedly connected to the inner side of the baffle 34;

[0047] The fixing hole 31 and the through hole 32 are used to place the limiting column 35. The second telescopic spring 33 is used to drive the baffle 34 to reset. The baffle 34 is used to support the limiting column 35. The limiting column 35 is used to limit the fixing plate 21.

[0048] The fixing hole 31 and the through hole 32 are square structures, and the center line of the fixing hole 31 coincides with the center line of the steel needle 12. The limiting column 35 extends inward through the through hole 32;

[0049] When the limiting post 35 is located inside the fixing hole 31 , the fixing hole 31 blocks the limiting post 35 , so that the limiting post 35 fixes the fixing plate 21 ;

[0050] Working principle: When the pressure stabilizing assembly needs to be installed, an outward force is applied to the baffle 34, so that the baffle 34 drives the second telescopic spring 33 to stretch and drives the limiting post 35 to move outward. At this time, the fixing plate 21 is moved to make the through hole 32 correspond to the fixing hole 31, and then the force applied to the baffle 34 is stopped. Under the elastic force of the second telescopic spring 33, the baffle 34 moves inward and drives the limiting post 35 to move inward. When the limiting post 35 is located inside the fixing hole 31, the fixing plate 21 can be fixed, thereby completing the installation. Moreover, since the center lines of the fixing hole 31 and the steel needle 12 coincide with each other, the fixing plate 21 can drive the center line of the fixing ring 22 and the center line of the steel needle 12 to be collinear, thereby avoiding the air cushion 27 from being skewed.

[0051] When the pressure stabilization assembly needs to be disassembled, just reverse the above steps.

[0052] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. Skin pressure stabilizer used after external fixation surgery, characterized by: include: An external fixator assembly, the external fixator assembly comprising an external fixator body (11); A pressure stabilization assembly, comprising a fixing plate (21), a fixing ring (22), a support rod (23), a retaining ring (24), a first telescopic spring (25), a supporting ring (26) and an air cushion (27); The fixing plate (21) is clamped to the outer side of the outer fixing frame body (11), the fixing ring (22) is fixedly connected to the inner side of the fixing plate (21), the support rod (23) passes through both sides of the fixing ring (22) and extends outward, the retaining ring (24) is fixedly connected to the outer surface of one end of the support rod (23), the first telescopic spring (25) is fixedly connected to the outer side of the retaining ring (24), the supporting ring (26) is fixedly connected to the other end of the first telescopic spring (25), and the air cushion (27) is fixedly connected to the outer side of the supporting ring (26).

2. The skin pressure stabilizer for use after external fixation surgery according to claim 1, characterized in that: The external fixator assembly also includes a steel needle (12); The steel needle (12) penetrates the interior of the external fixator body (11) and extends outward.

3. The skin pressure stabilizer for use after external fixation surgery according to claim 1, characterized in that: The air cushion (27) is located outside the steel needle (12), and the air cushion (27) is a circular ring structure.

4. The skin pressure stabilizer for use after external fixation surgery according to claim 1, characterized in that: A threaded structure is provided on the outer surface of the support rod (23), and one end of the support rod (23) is located on one side inside the first telescopic spring (25).

5. The skin pressure stabilizer for use after external fixation surgery according to claim 1, characterized in that: It also includes a movable assembly, which includes a fixing hole (31), a through hole (32), a second telescopic spring (33), a baffle (34) and a limiting column (35); The fixing hole (31) is opened at an outer position of the outer fixing frame body (11), the through hole (32) is opened at an outer end position of the fixing plate (21), the second telescopic spring (33) is fixedly connected to the outer position of the fixing plate (21), the baffle (34) is fixedly connected to the outer end position of the second telescopic spring (33), and the limiting column (35) is fixedly connected to the inner position of the baffle (34).

6. The skin pressure stabilizer for use after external fixation surgery according to claim 5, characterized in that: The fixing hole (31) and the through hole (32) are square structures, and the center line of the fixing hole (31) coincides with the center line of the steel needle (12), and the limiting column (35) extends inward through the through hole (32).

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