Negative pressure film anti-air-leakage fastening device for external fixation support

Abstract

The utility model relates to the field of medical auxiliary appliances, in particular to an external fixation support negative pressure film anti-air-leakage fastening device which comprises an external fixation support, a negative pressure drainage device and a fastening pipe. And the plurality of nail channels of the external fixing bracket are all used for being mounted on a skeleton. The negative pressure drainage device comprises a drainage sponge used for covering the wound surface of the limb, a negative pressure film attached to the drainage sponge and the skin of the nearby limb, a drainage suction cup arranged on the negative pressure film, a negative pressure machine and a drainage tube connected with the drainage suction cup and the negative pressure machine. According to the negative pressure drainage device, at least one nail channel penetrates through the negative pressure thin film, part of the negative pressure thin film is attached to the bottom of the corresponding nail channel, the fastening pipe is arranged on the nail channel in a sleeved mode and can press the negative pressure thin film located on the nail channel, and therefore the negative pressure thin film penetrated by the nail channel is prevented from leaking air, and it is guaranteed that negative pressure drainage on a wound surface can be conducted smoothly.

Description

Technical Field

[0001] The utility model relates to the field of medical auxiliary appliances, and particularly relates to an air leakage prevention and fastening device for negative pressure film of an external fixation bracket. Background Art

[0002] When a limb fracture occurs, especially a severely comminuted fracture, there are mostly upper and lower displacements or angular dislocations of the bone, which requires clinical doctors to perform anatomical reduction on the affected part during the operation. This requires some special tools to help doctors achieve this goal. Finally, special instruments are needed to fix the reduced bone to help the bone recover and heal as soon as possible. The orthopedic external fixation bracket is one of the commonly used medical devices in orthopedic clinics.

[0003] When using an orthopedic external fixation bracket to fix and reduce a bone, if there is also a wound on the injured limb at the same time, VSD (negative pressure drainage technology) is required to perform negative pressure closed drainage on the wound to temporarily cover the wound and maintain the fluid balance of the wound. However, sometimes the nail holes of the external fixation bracket happen to be at the position where the film is pasted. Since the nail holes penetrate the negative pressure film, it will cause air leakage of the negative pressure film, thus affecting the negative pressure drainage effect.

[0004] Therefore, there is an urgent need for a new air leakage prevention and fastening device for the negative pressure film of an external fixation bracket to solve the above problems. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides an air leakage prevention and fastening device for the negative pressure film of an external fixation bracket to solve the problem of air leakage caused by the nail holes penetrating the negative pressure film.

[0007] (2) Technical Solutions

[0008] To achieve the above purpose, the air leakage prevention and fastening device for the negative pressure film of the external fixation bracket of the utility model includes an external fixation bracket and a negative pressure drainage device; a plurality of nail holes of the external fixation bracket are all used for being installed on the bone;

[0009] The negative pressure drainage device includes a drainage sponge for covering the wound on the limb, a negative pressure film attached to the drainage sponge and the skin of the nearby limb, a drainage suction cup arranged on the negative pressure film, a negative pressure machine, and a drainage tube connecting the drainage suction cup and the negative pressure machine;

[0010] Wherein, at least one of the nail holes penetrates the negative pressure film, and part of the negative pressure film adheres to the bottom of the corresponding nail hole;

[0011] The air leakage prevention and fastening device for the negative pressure film of the external fixation bracket further includes a fastening tube, which is sleeved on the nail track and can press the negative pressure film located on the nail track.

[0012] Optionally, the fastening tube includes a tube body with a longitudinally opened notch and a plurality of binding ropes for tying the notch.

[0013] Optionally, the tube body is provided with paired mounting holes, and the paired mounting holes are spaced based on the notch. The first ends of the binding ropes are respectively mounted in the mounting holes, and the second ends of the paired binding ropes can be knotted with each other.

[0014] Optionally, the binding rope is an elastic rope loop sleeved outside the tube body.

[0015] Optionally, the tube body is divided into a cylindrical section and a flared section that are connected to each other, and at least one binding rope is located at the connection between the cylindrical section and the flared section.

[0016] Optionally, the tube body is a rubber tube.

[0017] Optionally, the length of the tube body is one-third to one-fifth of the length of the nail track.

[0018] Optionally, the drainage sponge is a polyurethane sponge.

[0019] Optionally, the negative pressure film is a medical transparent dressing.

[0020] Optionally, a negative pressure gauge is installed on the drainage tube.

[0021] (III) Beneficial effects

[0022] In the air leakage prevention and fastening device for the negative pressure film of the external fixation bracket of the present utility model, at least one nail track penetrates through the negative pressure film, specifically through the non-wound area of the negative pressure film, and part of the negative pressure film adheres to the bottom of the corresponding nail track. The fastening tube is sleeved on the nail track and can press the negative pressure film located on the nail track, thereby preventing the negative pressure film penetrated by the nail track from leaking air, so as to ensure the smooth progress of the negative pressure drainage of the wound surface. Description of the drawings

[0023] Figure 1 is a schematic structural diagram of the air leakage prevention and fastening device for the negative pressure film of the external fixation bracket of the present utility model;

[0024] Figure 2 is Figure 1 an enlarged view of the nail track and the fastening tube in

[0025]

Description of the reference numerals

[0026] 100: lower leg;

[0027] 10: External fixation bracket; 11: Nail track; 12: Tightening tube; 121: Tube body; 1211: Cylindrical section; 1212: Flared section; 1213: Notch; 122: Binding rope;

[0028] 20: Negative pressure film; 21: Drainage sponge; 22: Fold;

[0029] 30: Drainage suction cup; 31: Drainage tube;

[0030] 40: Negative pressure machine. Specific implementation manner

[0031] In order to better explain the present utility model for easy understanding, the present utility model will be described in detail below with reference to the accompanying drawings through specific implementation manners.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; "connection" can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] See Figure 1 and Figure 2 According to [relevant content], the present utility model provides an external fixation bracket negative pressure film air leakage prevention and tightening device, which specifically may include an external fixation bracket 10, a negative pressure drainage device, and a tightening tube 12. Multiple nail tracks 11 of the external fixation bracket 10 are all used for installation on bones (such as Figure 1The negative pressure drainage device includes a drainage sponge 21 for covering the wound surface of a limb, a negative pressure film 20 attached to the drainage sponge 21 and the skin of the nearby limb, a drainage suction cup 30 arranged on the negative pressure film 20, a negative pressure machine 40, and a drainage tube 31 connecting the drainage suction cup 30 and the negative pressure machine 40. When the negative pressure machine 40 is started, the negative pressure film 20 attached to the surface of the skin will further adhere to the skin under the action of negative pressure and inevitably produce some wrinkles 22. The negative pressure machine 40 uses the drainage tube 31 and the drainage suction cup 30 to suck away the body fluid exuded from the wound surface from the drainage sponge 21 under negative pressure to help establish a liquid balance on the wound surface, thereby achieving multiple effects such as reducing the number of bacteria on the wound surface (bacteria are not easy to survive under negative pressure) and reducing edema. If the nail channel 11 of the external fixator 10 is just in contact with the negative pressure film 20 , the nail channel 11 penetrates the negative pressure film 20 , which may cause air leakage in the negative pressure film 20 , thereby affecting the effect of negative pressure drainage.

[0036] In the present invention, at least one nail channel 11 penetrates the negative pressure film 20, specifically, penetrates the non-wound surface area (such as Figure 1 As shown), part of the negative pressure film 20 is attached to the bottom of the corresponding nail channel 11, and the fastening tube 12 is sleeved on the nail channel 11 and can compress the negative pressure film 20 located on the nail channel 11, thereby preventing the negative pressure film 20 penetrated by the nail channel 11 from leaking, so as to ensure that the negative pressure drainage of the wound surface can proceed smoothly.

[0037] In a preferred embodiment, see again Figure 2 The fastening tube 12 includes a tube body 121 with a longitudinal notch 1213 and a plurality of binding ropes 122 for binding the notch 1213. The tube body 121 can be a longitudinally cut rubber hose to facilitate the tube body 121 to be sleeved on the nail channel 11. The rubber hose itself has a certain elasticity and can better clamp the negative pressure film 20 on the nail channel 11. The notch 1213 is tightened with a plurality of binding ropes 122, which can achieve a good anti-leakage effect.

[0038] In one embodiment, Figure 2 As shown, the tube body 121 is provided with a pair of mounting holes, and the pair of mounting holes are spaced apart based on the notch 1213 (i.e., one mounting hole is on one side of the notch 1213, and the other mounting hole is on the other side of the notch 1213), and the first ends of the binding ropes 122 are mounted in the mounting holes one by one, and the second ends of the pair of binding ropes 122 can be tied to each other, so that the notch 1213 can be tightened as much as possible, so that the tube body 121 can tightly clamp the negative pressure film 20 on the nail channel 11. Among them, the binding rope 122 can preferably be an iron core plastic-coated binding wire, which is easy to knot and shape and has reliable strength. In another embodiment, the binding rope 122 can also be an elastic rope ring (not shown) sleeved outside the tube body 121, and the elastic rope ring can be a rubber ring.

[0039] Refer to again Figure 2 As shown in Figure 2 , the tube body 121 is divided into a connected cylindrical section 1211 and a flared section 1212. At least one binding rope 122 is located at the connection between the cylindrical section 1211 and the flared section 1212. The flared section 1212 is applicable to the case where the negative pressure film 20 is stacked at the bottom of the nail track 11, and the binding rope 122 at the connection can effectively ensure the tightening effect of the flared section 1212. Additionally, according to the actual situation, the length of the tube body 121 can preferably be one-third to one-fifth of the length of the nail track 11 to minimize the impact on the nail track 11 while ensuring the airtightness prevention effect.

[0040] Furthermore, in a preferred embodiment, the drainage sponge 21 can be a polyurethane sponge, and the negative pressure film 20 can be a medical transparent dressing. Additionally, a negative pressure gauge can preferably be installed on the drainage tube 31 so that doctors can observe the negative pressure state of the wound surface at any time.

[0041] It should be understood that the above description of the specific embodiments of the present invention is only for explaining the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the above specific embodiments. Any changes or modifications made within the scope of the claims of the present invention should be covered by the protection scope of the present invention.

Claims

1. An external fixator negative pressure film anti-leakage fastening device, comprising an external fixator (10) and a negative pressure drainage device; the plurality of nail channels (11) of the external fixator (10) are all used for installation on bones; The negative pressure drainage device comprises a drainage sponge (21) for covering a limb wound surface, a negative pressure film (20) attached to the drainage sponge (21) and the skin of the nearby limb, a drainage suction cup (30) arranged on the negative pressure film (20), a negative pressure machine (40), and a drainage tube (31) connecting the drainage suction cup (30) and the negative pressure machine (40); It is characterized in that At least one of the nail channels (11) penetrates the negative pressure film (20), and a portion of the negative pressure film (20) is attached to the bottom of the corresponding nail channel (11); The external fixation bracket negative pressure film anti-leakage fastening device further comprises a fastening tube (12), wherein the fastening tube (12) is sleeved on the nail channel (11) and is capable of pressing the negative pressure film (20) located on the nail channel (11); The fastening tube (12) comprises a tube body (121) having a longitudinal notch (1213) and a plurality of binding ropes (122) for binding the notch (1213). The tube body (121) is a rubber hose cut longitudinally. The rubber hose is elastic and can clamp the negative pressure film (20) on the nail channel (11), and then cooperate with the plurality of binding ropes (122) to tighten the notch (1213).

2. The negative pressure film anti-leakage fastening device for an external fixation bracket according to claim 1, characterized in that: The tube body (121) is provided with a pair of mounting holes, the pair of mounting holes are spaced apart based on the slot (1213), the first ends of the binding ropes (122) are mounted in the mounting holes one by one, and the second ends of the pair of binding ropes (122) can be tied together.

3. The negative pressure film anti-leakage fastening device for an external fixation bracket according to claim 1, characterized in that: The binding rope (122) is an elastic rope loop sleeved outside the tube body (121).

4. The negative pressure film anti-leakage fastening device for an external fixation bracket according to claim 1, characterized in that: The tube body (121) is divided into a cylindrical section (1211) and a flared section (1212) which are connected to each other, and at least one binding rope (122) is located at the connection between the cylindrical section (1211) and the flared section (1212).

5. The negative pressure film anti-leakage fastening device for an external fixation bracket according to claim 1, characterized in that: The length of the tube body (121) is one third to one fifth of the length of the nail channel (11).

6. The negative pressure film anti-leakage fastening device for an external fixation bracket according to any one of claims 1 to 5, characterized in that: The drainage sponge (21) is a polyurethane sponge.

7. The negative pressure film anti-leakage fastening device for an external fixation bracket according to any one of claims 1 to 5, characterized in that: The negative pressure film (20) is a medical transparent film.

8. The negative pressure film anti-leakage fastening device for an external fixation bracket according to any one of claims 1 to 5, characterized in that: A negative pressure gauge is installed on the drainage tube (31).

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