Positioning type water injection auxiliary device of skin expander

Abstract

The utility model provides a positioning type water injection auxiliary device of a skin dilator, which comprises an injection pot, a first connecting piece, a second connecting piece and a water injection pipe, one side of the injection pot is connected with a connecting pipe, the other side of the injection pot is provided with a first connecting piece, and the upper surface of the injection pot is provided with a puncture hole; the auxiliary supporting assembly comprises a positioning base, a support and a needle head base, the positioning base is detachably connected with the first connecting piece, and the support is rotationally installed on the positioning base. According to the device, puncture of the puncture needle is limited through the auxiliary supporting assembly, it is guaranteed that the puncture needle can accurately puncture into a puncture hole, the risks of injection pot leakage, damage and treatment failure which are increased due to puncture needle failure are avoided, unnecessary pain is caused to a patient, meanwhile, the puncture needle can be fixed to a certain degree through the needle head base, and the puncture needle is fixed to a certain degree. The device is simple in structure and convenient to use, and meanwhile, the working difficulty of medical staff is reduced to a certain extent.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a positioning water injection auxiliary device for a skin expander. Background Technology

[0002] Skin soft tissue expansion, an advanced treatment method unique to plastic surgery, works by implanting a skin soft tissue expander (referred to as a skin expander) under normal skin and soft tissue near the lesion. By intermittently injecting fluid into the expansion sac to increase the expander's volume, it exerts pressure on the surface skin and soft tissue. Through the expansion mechanism, it causes the tissue and epidermal cells to divide and proliferate, and the intercellular spaces to widen, thereby increasing the skin area. After removing the expansion sac, the newly added skin and soft tissue can be used for tissue repair and organ reconstruction.

[0003] Currently, the clinical use of expanders often presents some inconveniences, especially during the water-filled expansion phase. Patients are typically required to come to the hospital so medical staff can manually locate the injection site by touch before inserting the needle into the bottom of the injection site for water injection. However, this practice presents several problems: Clinical patients have high water injection demands, requiring multiple injections over long periods, significantly increasing the workload for medical staff; subjective judgment of location carries risks; if the injection site is not clearly defined, it is difficult to determine the exact location, leading to unclear puncture sites and the risk of injecting water subcutaneously instead of into the water sac, resulting in failed punctures, repeated punctures, increased risk of leakage, damage, and treatment failure, causing unnecessary suffering for the patient; clinically, scalp vein needles connected to syringes are often used for puncture and injection, which are prone to displacement due to shaking or other external forces, affecting the puncture effect and even posing a risk of dislodgement.

[0004] How to provide a positioning-type water injection auxiliary device for a skin expander is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a positioning water injection auxiliary device for a skin expander, so as to solve at least one of the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, this utility model provides a positioning water injection auxiliary device for a skin expander, comprising: an injection vessel, one side of which is connected to a connecting tube, and the other side of which is provided with a first connecting member, and the upper surface of which is provided with a puncture hole; and an auxiliary support assembly, which includes a positioning base, a bracket, and a needle holder, wherein the positioning base is detachably connected to the first connecting member, the bracket is rotatably mounted on the positioning base, and the needle holder is mounted on the end of the bracket away from the positioning base, with the needle holder facing the puncture hole.

[0007] Optionally, the connection between the first connector and the positioning base is provided with opposite magnets, and the first connector and the positioning base are detachably connected by the opposite magnets.

[0008] Optionally, the first connector is a semi-circular shape adapted to the outer ring of the injection vessel, and the first connector is fitted and sleeved on the outer ring of the injection vessel. The connection part between the positioning base and the first connector is an arc shape adapted to the semi-circular outer ring of the first connector.

[0009] Optionally, the puncture hole is located in the middle of the upper surface of the injection vessel.

[0010] Optionally, a rubber buffer pad is provided at the arc-shaped connection between the positioning base and the first connector.

[0011] Optionally, the bracket is hinged to the positioning base via a hinge, and the distance between the needle holder and the hinge is the same as the distance between the puncture hole and the hinge.

[0012] Optionally, the bracket is arc-shaped, with one end of the bracket away from the positioning base bending towards the injection vessel.

[0013] Optionally, the needle holder is provided with a needle hole, and the diameter of the end of the needle hole facing the injection chamber is smaller than the diameter of the other end of the needle hole.

[0014] Optionally, the auxiliary support assembly further includes a needle clip: the needle clip is mounted on the needle holder and is located above the needle hole.

[0015] Optionally, the bottom surface of the positioning base is provided with a gauze pad; the positioning base, the bracket, and the needle holder are all made of plastic.

[0016] Beneficial effects:

[0017] This utility model provides a positioning-type water injection auxiliary device for a skin expander. The injection vessel is connected to the expander via a connecting tube. In use, liquid is injected through the injection vessel using a syringe, flowing through the connecting tube to the expander to complete the expansion. The device adds a first connecting piece to the injection vessel, which is implanted subcutaneously along with the injection vessel. During use, the positioning base is first connected to the first connecting piece through the skin to fix the relative position of the positioning base to the injection vessel. The puncture needle is fixed to the needle holder, and the support rotates relative to the positioning base. As the support rotates, it conforms to the injection vessel... During injection, the needle holder on the support coincides perfectly with the injection port of the injection vessel, allowing the puncture needle on the needle holder to pierce the injection port. This device uses an auxiliary support component to limit the puncture of the needle, ensuring that the needle can accurately puncture the puncture port and avoid increasing the risk of leakage, damage, and treatment failure caused by needle failure, thus preventing unnecessary pain to the patient. At the same time, the needle holder can fix the puncture needle to a certain extent, preventing shaking during puncture. The device has a simple structure, is easy to use, and reduces the workload of medical staff to a certain extent.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the elevation structure provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the elevation structure of the bracket when it rotates, as provided in the embodiment of this application.

[0022] Figure label:

[0023] 1. Injection chamber; 11. Connecting tube; 12. First connector; 13. Puncture hole;

[0024] 2. Auxiliary support components; 21. Positioning base; 22. Bracket; 23. Needle holder; 24. Rubber buffer pad; 25. Hinge; 26. Needle hole; 27. Needle clip. Detailed Implementation

[0025] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this specification are within the protection scope of this utility model.

[0026] Furthermore, in the embodiments of this specification, when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component present.

[0027] Please see Figure 1-2 This embodiment provides a positioning water injection auxiliary device for a skin expander, which includes an injection vessel 1, a connecting tube 11 connected to one side of the injection vessel 1, a first connecting member 12 provided on the other side of the injection vessel 1, and a puncture hole 13 provided on the upper surface of the injection vessel 1; and an auxiliary support assembly 2, which includes a positioning base 21, a bracket 22, and a needle holder 23. The positioning base 21 is detachably connected to the first connecting member 12, the bracket 22 is rotatably mounted on the positioning base 21, and the needle holder 23 is mounted on the end of the bracket 22 away from the positioning base 21, with the needle holder 23 facing the puncture hole 13.

[0028] Specifically, the injection vessel 1 is connected to the dilator via a connecting tube 11. In use, liquid is injected into the injection vessel 1 through a syringe, flowing through the connecting tube 11 to the dilator, thus completing dilation. The device includes a first connecting member 12 on the injection vessel 1, which is implanted subcutaneously along with the injection vessel 1. During use, the positioning base 21 is first connected to the first connecting member 12 through the skin to fix the relative position of the positioning base 21 to the injection vessel 1. The puncture needle is then fixed to the needle holder 23. The support 22 rotates relative to the positioning base 21. When the support 22 rotates and aligns with the injection vessel 1... The position of the needle holder 23 on the support 22 coincides with the injection hole of the injection chamber 1, and the puncture needle on the needle holder 23 is inserted into the injection hole. The device limits the puncture of the puncture needle through the auxiliary support component 2, ensuring that the puncture needle can accurately puncture into the puncture hole 13, avoiding the risk of leakage, damage, and treatment failure of the injection chamber 1 due to puncture needle failure, and causing unnecessary pain to the patient. At the same time, the needle holder 23 can fix the puncture needle to a certain extent to prevent shaking during puncture. The device has a simple structure, is easy to use, and reduces the workload of medical staff to a certain extent.

[0029] In some possible implementations, the connection points of the first connector 12 and the positioning base 21 are respectively provided with opposite magnets, and the first connector 12 and the positioning base 21 are detachably connected by opposite magnets.

[0030] Specifically, the first connector 12 and the positioning base 21 are connected by opposite magnets. The positive and negative poles of the magnets are respectively installed on the first connector 12 and the positioning base 21. The first connector 12 and the positioning base 21 can be connected through the skin by opposite magnets to fix the relative position between the two.

[0031] In some possible implementations, the first connector 12 is a semi-circular shape adapted to the outer ring of the injection vessel 1. The first connector 12 fits snugly onto the outer ring of the injection vessel 1, and the portion of the positioning base 21 that is in contact with the first connector 12 is an arc shape adapted to the semi-circular outer ring of the first connector 12. The puncture hole 13 is located in the middle of the upper surface of the injection vessel 1.

[0032] Specifically, when the first connector 12 is arranged around the injection chamber 1, it will not protrude too much, causing skin damage. At the same time, the arc-shaped part of the positioning base 21 is adsorbed onto the annular first connector 12, making the connection more wedge-fitting and the positioning base 21 more accurate. The puncture hole 13 is located in the middle of the upper surface of the circular injection chamber 1. The distance from any point on the outer ring of the annular first connector 12 to the puncture hole 13 is the same. As long as the arc-shaped positioning base 21 is wedge-fitted onto the arc-shaped connector, even if there is some deviation to the left or right, it can ensure that the needle seat 23 connected to the positioning base 21 points to the puncture hole 13.

[0033] In some possible implementations, a rubber buffer pad 24 is provided at the arc-shaped connection between the positioning base 21 and the first connector 12.

[0034] Specifically, the positioning base 21 is attached to the first connector 12 by an opposite magnet. The patient's skin is sandwiched between the two, which may cause discomfort. When a rubber cushioning pad 24 is laid at the arc-shaped connection of the positioning base 21, the comfort during use is improved.

[0035] In some possible implementations, the support 22 is hinged to the positioning base 21 via a hinge 25, and the distance from the needle holder 23 to the hinge is the same as the distance from the puncture hole 13 to the hinge. The support 22 is arc-shaped, with one end of the support 22 away from the positioning base 21 bending towards the injection chamber 1.

[0036] Specifically, the hinge 25 drives the bracket 22 to rotate relative to the positioning base 21, and the rotation is relatively flexible. At the same time, the arc-shaped bracket 22 ensures that the needle seat 23 on the bracket 22 can be directly aligned with the puncture hole 13.

[0037] In some possible implementations, the needle holder 23 is provided with a needle hole 26, the diameter of the end of the needle hole 26 facing the injection vessel 1 being smaller than the diameter of the other end of the needle hole 26.

[0038] Specifically, the pinhole 26 is a frustum shape with a large bottom diameter and a small top diameter. When the needle is inserted, it is more stable and wedge-fitting. At the same time, it limits the needle and prevents the needle from being inserted too deeply.

[0039] In some possible implementations, the auxiliary support assembly 2 also includes a needle clip 27: the needle clip 27 is mounted on the needle holder 23 and is located above the needle hole 26.

[0040] Specifically, the needle clamp 27 secures the needle when it is inserted into the needle hole 26, preventing the needle from being accidentally pulled out.

[0041] In some possible implementations, a gauze pad is provided on the bottom surface of the positioning base 21. The positioning base 21, the bracket 22, and the needle holder 23 are all made of plastic.

[0042] Specifically, the gauze pad improves the comfort of the positioning base 21 when it fits against the skin, while also providing some isolation. The plastic material is lighter and cheaper, and its light weight prevents it from falling off due to excessive weight during use, which would affect the puncture procedure.

[0043] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. All should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0044] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A positioning-type water injection auxiliary device for a skin expander, characterized in that, include: Injection vessel (1), one side of the injection vessel (1) is connected to a connecting tube (11), the other side of the injection vessel (1) is provided with a first connecting piece (12), and the upper surface of the injection vessel (1) is provided with a puncture hole (13). The auxiliary support assembly (2) includes a positioning base (21), a bracket (22) and a needle holder (23). The positioning base (21) is detachably connected to the first connector (12). The bracket (22) is rotatably mounted on the positioning base (21). The needle holder (23) is mounted on the end of the bracket (22) away from the positioning base (21) and faces the puncture hole (13).

2. The positioning water injection auxiliary device for a skin expander according to claim 1, characterized in that: The first connector (12) and the positioning base (21) are respectively provided with opposite magnets, and the first connector (12) and the positioning base (21) are detachably connected by the opposite magnets.

3. The positioning water injection auxiliary device for a skin expander according to claim 2, characterized in that: The first connector (12) is a semi-circular shape that fits the outer ring of the injection vessel (1). The first connector (12) is fitted and sleeved on the outer ring of the injection vessel (1). The connection part between the positioning base (21) and the first connector (12) is an arc shape that fits the semi-circular outer ring of the first connector (12).

4. The positioning water injection auxiliary device for a skin expander according to claim 3, characterized in that: The puncture hole (13) is located in the middle of the upper surface of the injection vessel (1).

5. A positioning-type water injection auxiliary device for a skin expander according to claim 4, characterized in that: A rubber buffer pad (24) is provided at the arc-shaped connection between the positioning base (21) and the first connector (12).

6. A positioning-type water injection auxiliary device for a skin expander according to claim 5, characterized in that: The bracket (22) is hinged to the positioning base (21) via a hinge (25), and the distance between the needle holder (23) and the hinge is the same as the distance between the puncture hole (13) and the hinge.

7. A positioning-type water injection auxiliary device for a skin expander according to claim 6, characterized in that: The bracket (22) is arc-shaped, and the end of the bracket (22) away from the positioning base (21) bends toward the injection vessel (1).

8. A positioning-type water injection auxiliary device for a skin expander according to any one of claims 1-7, characterized in that: The needle holder (23) is provided with a needle hole (26), and the diameter of the end of the needle hole (26) facing the injection bottle (1) is smaller than the diameter of the other end of the needle hole (26).

9. A positioning-type water injection auxiliary device for a skin expander according to claim 8, characterized in that, The auxiliary support assembly (2) also includes a needle clip (27): The needle clip (27) is mounted on the needle holder (23) and is located above the needle hole (26).

10. A positioning-type water injection auxiliary device for a skin expander according to claim 9, characterized in that: The bottom surface of the positioning base (21) is provided with a gauze pad; the positioning base (21), the bracket (22) and the needle holder (23) are all made of plastic.

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