CN219629806U - Water injection device for skin expander - Google Patents

Water injection device for skin expander Download PDF

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Publication number
CN219629806U
CN219629806U CN202320415910.0U CN202320415910U CN219629806U CN 219629806 U CN219629806 U CN 219629806U CN 202320415910 U CN202320415910 U CN 202320415910U CN 219629806 U CN219629806 U CN 219629806U
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China
Prior art keywords
injection
water
needle
water injection
kettle
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Active
Application number
CN202320415910.0U
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Chinese (zh)
Inventor
朱勇敢
杨悦来
杨旭
顾玉莲
余双
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Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
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Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
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Abstract

The utility model relates to a water injection device for a skin expander, which comprises an injection needle, an injection kettle and a soft tissue expander connected with the injection kettle, and is characterized in that the water receiving end of the injection needle is connected with a water source through a water injection pipe, a one-way valve is arranged in the middle section of the water injection pipe, the needle head of the injection needle is opposite to the water receiving end of the injection kettle, and a rubber protective sleeve which extends outwards and completely covers the needle head section of the injection needle is arranged outside the water receiving end of the injection kettle. The novel water injection device overcomes the defect that the expander which is clinically put into use at present is not provided with a water injection device, and simultaneously, compared with the water injection method which is commonly used at present, the novel water injection device can effectively reduce the risk of sharp injuries of medical staff, reduce the probability of accidentally puncturing the expander, reduce the exposure time of a scalp needle, reduce pollution, control the in-out quantity, prevent splashing, save time and save labor.

Description

Water injection device for skin expander
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to a water injection device for a skin dilator.
Background
The soft skin tissue dilating operation is to place soft skin tissue dilator below normal skin and subcutaneous tissue, to intermittently inject isotonic physiological saline into the dilating sac via the injecting kettle of the soft skin tissue dilator, to increase the capacity of the dilator in stages, to press the soft skin tissue, to expand the soft skin tissue with the continuous pressure of the dilator, to divide and proliferate the tissue and the epidermal cells and to enlarge the cell gap, to increase the skin area, to repair the defective tissue and the defective organ. Compared with the conventional method for repairing scars by adopting autologous full-thickness skin transplantation, the application of skin soft tissue expansion can better improve the defects of transplanted skin and surrounding skin, other parts are not needed for skin supply, and the acceptance of patients on the method is higher.
At present, the skin soft tissue dilator put into use has no original water injection device, so before the skin soft tissue dilator is put into use, a 25G disposable sterile scalp needle is connected with a 20ml sterile injector, a proper amount of air is injected into the dilator through an injection kettle, and the tightness of the dilator is tested; after successful placement of the dilator, a 25G disposable sterile scalp needle and a 20ml sterile syringe were again used to drive 10% volume sterile isotonic saline into the dilator through the syringe kettle. The needle point of the method is not provided with a protective device, so that the risk of the medical staff being injured by a sharp tool is increased, the possibility of accidentally puncturing the dilator is also increased, unnecessary clinical risks and waste are caused, and the pollution risk is increased when the disposable scalp needle without the protective sleeve is exposed to the air for a long time. In the outpatient dilator water injection patients, the ratio of children is large, most children patients do not want to cooperate in water injection treatment, and the risk of sharp-pointed injuries to medical staff is increased. In addition, in the air injection and water injection process by adopting the method, the air or liquid in the expander is required to be prevented from flowing out by reversely folding the scalp needle hose, so that the control of the input and output amount is not facilitated, and the actions such as reversely folding the hose for water injection and air injection and the like can only be operated by one hand when the medical staff singly operate, thereby wasting time and labor. The disposable scalp needle is generally thinner, compared with the thick needle, the water injection pressure generated by the thin needle head is larger under the same injection force, and the joint of the nipple of the needle cylinder and the needle plug or the scalp needle hose can be sprung out due to the pressure in the injection process, so that liquid splashing is easier to be caused, and the water injection quantity is not easy to calculate.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a water injection device for a skin dilator, which protects a needle head, prevents a joint from falling off, prevents splashing and is convenient for medical staff to operate independently.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a water injection device for skin expander, includes injection needle, injection kettle and the soft tissue expander that links to each other with the injection kettle, its characterized in that, the water receiving end of injection needle passes through the water injection pipe and links to each other with the water source, the middle section of water injection pipe is equipped with one-way valve, the syringe needle just to the water receiving end of injection kettle, the water receiving end of injection kettle is equipped with outwards extends and completely covers the rubber protective sheath of syringe needle head section outward.
Further, the water source is a syringe filled with sterile isotonic physiological saline.
Further, the end of the water injection pipe is provided with a threaded injector interface.
Further, the injection kettle comprises a kettle body with an inner cavity, wherein one end of the inner cavity connected with the injection needle is provided with a glue layer, and the other end of the inner cavity is connected with the soft tissue expander.
Further, the one-way valve comprises a valve base, a groove matched with the rotatable inner core is formed in the valve base, the valve base is rotatably connected with the rotatable inner core, two opposite communication grooves are formed in two sides of the groove respectively, a through groove is formed in the position, matched with the communication grooves, of the lower portion of the rotatable inner core, and a handle is arranged at the top of the rotatable inner core.
Advantageous effects
The novel water injection device overcomes the defect that the expander which is clinically put into use at present is not provided with a water injection device, and simultaneously, compared with the water injection method which is commonly used at present, the novel water injection device can effectively reduce the risk of sharp injuries of medical staff, reduce the probability of accidentally puncturing the expander, reduce the exposure time of a scalp needle, reduce pollution, control the in-out quantity, prevent splashing, save time and save labor.
The utility model has low cost, is convenient for medical staff to operate, is more economical and practical for patients, can be used in an outpatient treatment room besides an operating room, and is worth popularizing.
Drawings
Fig. 1 is a schematic view of a water injection device for a skin expander.
Fig. 2 is a schematic structural view of the check valve in fig. 1.
Wherein, 1-a soft tissue expander; 2-an injection pot; 3-an injection needle; 4-a rubber protective sleeve; 5-a one-way valve; 501-a valve base; 502-a rotatable inner core; 6-syringe interface.
Like reference symbols in the various drawings indicate like elements.
Detailed Description
The utility model will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the utility model as defined in the appended claims.
As shown in fig. 1, the present utility model provides a water injection device for a skin dilator, comprising an injection needle 3, an injection pot 2, and a soft tissue dilator 1 connected to the injection pot 2. The water receiving end of the injection needle 3 is connected with a water source through a water injection pipe, a one-way valve 5 is arranged at the middle section of the water injection pipe, the needle head of the injection needle 3 is opposite to the water receiving end of the injection kettle 2, and a rubber protective sleeve 4 which extends outwards and completely covers the needle head section of the injection needle 3 is arranged outside the water receiving end of the injection kettle 2. The needle head of the injection needle 3 is hidden in the rubber protective sleeve 4 when not in use, so that the needle head is prevented from being exposed to avoid hurting people.
In this embodiment, the water source is a syringe filled with sterile isotonic physiological saline. In other embodiments, a liquid water source such as a bottle may be connected.
In this embodiment, the end of the water injection pipe is a threaded injector interface 6, which can be connected with the injector through threads, so as to tightly prevent the injector from falling off to cause splashing during water injection.
In this embodiment, the injection pot 2 includes a pot body with an inner cavity, one end of the inner cavity connected with the injection needle 3 is provided with a glue layer, and the other end is connected with the soft tissue expander 1. When water is ready to be injected, the injection needle 3 is pushed forward to puncture the adhesive layer to enter the inner cavity, and then water injection can be started. After the water injection is completed, the injection needle 3 is drawn back into the rubber protective sleeve 4, and the adhesive layer is automatically tightened.
In this embodiment, the one-way valve 5 includes a valve base 501, a groove matched with the rotatable inner core 502 is provided in the valve base 501, the valve base 501 is rotatably connected with the rotatable inner core 502, two opposite communication grooves are respectively provided on two sides of the groove, a through groove is provided at a position matched with the communication groove at the lower part of the rotatable inner core 502, and a handle is provided at the top of the rotatable inner core 502. When the handle is rotated and the through groove of the rotatable inner core 502 is overlapped with the communication groove passage, the one-way valve 5 is opened, and when the passages are staggered, the valve is closed. The device is used for limiting gas circulation during tightness detection of the expander and limiting liquid circulation during water injection.
In this embodiment, the water injection pipe is made of sterile PVC.

Claims (5)

1. The utility model provides a water injection device for skin expander, includes injection needle (3), injection kettle (2) and soft tissue expander (1) that links to each other with injection kettle (2), its characterized in that, the water receiving end of injection needle (3) links to each other with the water source through the water injection pipe, the middle section of water injection pipe is equipped with one-way valve (5), the syringe needle of injection needle (3) just right the water receiving end of injection kettle (2), the water receiving end of injection kettle (2) is outside to extend and is fully covered rubber protective sheath (4) of injection needle (3) syringe needle section.
2. A water injection device for a skin dilator according to claim 1 wherein said water source is a syringe filled with sterile isotonic saline.
3. A water injection device for a skin expander as claimed in claim 2, wherein the water injection tube terminates in a threaded syringe interface (6).
4. A water injection device for a skin expander as claimed in claim 1 and wherein the injection kettle (2) comprises a kettle body with an inner cavity, one end of the inner cavity connected to the injection needle (3) being provided with a glue layer and the other end being connected to the soft tissue expander (1).
5. The water injection device for the skin expander according to claim 1, wherein the one-way valve (5) comprises a valve base (501), a groove matched with the rotatable inner core (502) is formed in the valve base (501), the valve base (501) is rotatably connected with the rotatable inner core (502), two opposite communication grooves are respectively formed in two sides of the groove, a through groove is formed in a position matched with the communication groove in the lower portion of the rotatable inner core (502), and a handle is arranged at the top of the rotatable inner core (502).
CN202320415910.0U 2023-03-08 2023-03-08 Water injection device for skin expander Active CN219629806U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320415910.0U CN219629806U (en) 2023-03-08 2023-03-08 Water injection device for skin expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320415910.0U CN219629806U (en) 2023-03-08 2023-03-08 Water injection device for skin expander

Publications (1)

Publication Number Publication Date
CN219629806U true CN219629806U (en) 2023-09-05

Family

ID=87809518

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320415910.0U Active CN219629806U (en) 2023-03-08 2023-03-08 Water injection device for skin expander

Country Status (1)

Country Link
CN (1) CN219629806U (en)

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