Instant medical electrostatic spinning system

Abstract

The utility model discloses an instant medical electrostatic spinning system which comprises an in-vitro injection device, a handle, a tubular component and an in-vitro high-pressure device, and the in-vitro injection device is used for storing injection liquid and spraying out the injection liquid; the handle is connected with the in-vitro injection device through the connecting pipe, one end of the tubular component is connected with the handle, the other end of the tubular component is connected with the metal injection head, the tubular component is flexible so that the metal injection head can stretch into the body, a wire is arranged in the side wall of the tubular component, one end of the wire is electrically connected with the in-vitro high-pressure device, and the other end of the wire is electrically connected with the in-vitro high-pressure device. And the other end of the wire is electrically connected with the metal injection head. When the electrostatic spinning system is used, the in-vitro injection device, the handle, one end of the tubular component and the in-vitro high-pressure device are all located outside the body, the tubular component and the metal injection head can be conveniently operated through the handle, injection liquid can be injected into the in-vitro injection device in time, injection can be started in time, and instant use of the electrostatic spinning system can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an instant medical electrostatic spinning system. Background Art

[0002] Electrospinning is a technology that uses high-voltage electrostatic fields to prepare ultrafine fibers. Due to its wide range of raw material choices, the prepared micro-nano fiber materials have high specific surface area and high porosity, adjustable and controllable physical and chemical properties, and can mimic the structure of extracellular matrix. They are widely used in biomedical fields such as wound dressings, anti-adhesion membranes, tissue repair membranes, drug sustained-release systems, and artificial blood vessels.

[0003] Traditional electrospinning equipment is mainly composed of three parts: a high-voltage power supply, a liquid supply mechanism with a spinneret, and a fiber collecting electrode. The equipment is relatively large in size. The preformed materials prepared using this type of equipment are difficult to combine with minimally invasive surgeries that are currently widely used in clinical practice, and cannot effectively adapt to complex application environments, such as uneven wounds and scenarios with special thickness / fiber morphology requirements. Although there are some ready-to-use handheld / portable electrospinning equipment at this stage, they are mainly used on the body surface / outside the body, and are not suitable for minimally invasive surgeries performed under laparoscopy, gastroscopy, tracheoscopy, and colonoscopy, and for wound treatment inside the human body such as the abdominal cavity, oral cavity, esophagus, trachea, and intestines. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an instant medical electrospinning system that can be instantly applied to in vivo scenarios under minimally invasive surgery.

[0005] According to an embodiment of the utility model, an instant medical electrospinning system includes an extracorporeal spraying device, a handle, a tubular member and an extracorporeal high-voltage device. The extracorporeal spraying device is used to store spray liquid and spray the spray liquid; the handle is connected to the extracorporeal spraying device through a connecting tube, and the connecting tube is used to transport the spray liquid; one end of the tubular member is connected to the handle, and the other end of the tubular member is connected to a metal spray head, an injection channel is provided in the tubular member, and the two ends of the injection channel are respectively connected to the tube cavity of the connecting tube and the needle cavity of the metal spray head, the tubular member is flexible so that the metal spray head can be extended into the body, and a wire is provided in the side wall of the tubular member along the length direction of the tubular member, one end of the wire is electrically connected to a terminal extending outside one end of the tubular member, and the other end of the wire is electrically connected to the metal spray head; the extracorporeal high-voltage device is connected to the terminal through a power cord.

[0006] At least the following beneficial effects are achieved:

[0007] The connecting tube, the injection channel and the metal injection head are connected in sequence, the tubular member is flexible, the metal injection head is extended into the body and moved to the target position through the tubular member, the in vitro injection device injects the injection liquid toward the target position through the connecting tube, the injection channel and the metal injection head, and the in vitro high-voltage device makes the metal injection head conductive through the power cord, the terminal and the wire, so that the injection liquid injected toward the target position forms spinning, thereby treating the target position for related diseases. When using the electrostatic spinning system, the in vitro injection device, the handle, one end of the tubular member and the in vitro high-voltage device are all outside the body, and the injection liquid can be added to the in vitro injection device and the injection can be started in time, so that the instant use of the electrostatic spinning system can be realized. One end of the tubular member is connected to the handle, so the tubular member and the metal injection head can be conveniently operated by the handle.

[0008] According to some embodiments of the present utility model, the extracorporeal injection device comprises a liquid injection group and a gas injection group, and the outlet of the liquid injection group, the outlet of the gas injection group and one end of the connecting tube are connected via a tee.

[0009] According to some embodiments of the utility model, the outlet of the liquid injection group is connected to the first end of the tee through a liquid outlet pipe, the outlet of the gas injection group is connected to the second end of the tee through an air outlet pipe, one end of the connecting pipe is connected to the third end of the tee, a liquid valve is provided on the liquid outlet pipe, and an air valve is provided on the air outlet pipe.

[0010] According to some embodiments of the utility model, the tubular component includes an injection tube and a protective sleeve sleeved outside the injection tube, the wire is arranged between the injection tube and the protective sleeve, the lumen of the injection tube is the injection channel, one end of the injection tube is connected to the handle, the other end of the injection tube is connected to the metal injection head, and the terminal is arranged on one end of the protective sleeve and connected to one end of the wire.

[0011] According to some embodiments of the present invention, the liquid outlet end of the metal injection head is flush with the port at the other end of the protective sleeve or is immersed in the port at the other end of the protective sleeve.

[0012] According to some embodiments of the present utility model, the metal injection head includes a connecting portion and a needle penetrating the connecting portion, and the connecting portion is sleeved or plugged with the other end of the injection tube.

[0013] According to some embodiments of the present invention, the cross-sectional shape of the connecting portion matches the cross-sectional shape of the outer wall of the injection tube, or the cross-sectional shape of the connecting portion matches the cross-sectional shape of the inner wall of the injection tube.

[0014] According to some embodiments of the utility model, a conductive sheet is provided between one end of the injection tube and one end of the protective cover, a through hole is provided on the side wall of one end of the protective cover, the terminal is passed through the through hole and connected to the wire through the conductive sheet.

[0015] According to some embodiments of the utility model, the handle includes a hand-held part and a main body part connected to each other, the hand-held part and the main body part form a cavity, an intermediate tube is provided in the cavity, the hand-held part is provided with a liquid inlet interface connected to the connecting tube, the main body part is provided with a liquid removal interface connected to one end of the tubular member, and the liquid inlet interface and the liquid removal interface are connected through the intermediate tube.

[0016] According to some embodiments of the present invention, the hand-held portion and the main body form an obtuse angle.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a structural schematic diagram of an instant medical electrospinning system according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of a handle and a tubular component of an instant medical electrospinning system according to an embodiment of the utility model;

[0021] Figure 3 This is a schematic cross-sectional structural diagram of one end of a tubular component of an instant medical electrospinning system according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the other end of a tubular component of an instant medical electrospinning system according to an embodiment of the utility model;

[0023] Figure Number:

[0024] Extracorporeal injection device 100, liquid injection group 110, gas injection group 120, liquid valve 130, gas valve 140, handle 200, hand-held part 210, main body 220, connecting tube 300, tubular member 400, liquid injection tube 410, protective cover 420, metal injection head 500, connecting part 510, needle 520, liquid injection channel 600, wire 700, conductive sheet 710, terminal 800, extracorporeal high-voltage device 900, power cord 910. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figures 1 to 4 The utility model discloses an instant medical electrospinning system, comprising an in vitro spraying device 100, a handle 200, a tubular member 400 and an in vitro high-pressure device 900. The in vitro spraying device 100 is used to store and spray the spraying liquid; the handle 200 is connected to the in vitro spraying device through a connecting tube 300, and the connecting tube 300 is used to transport the spraying liquid; one end of the tubular member 400 is connected to the handle 200, and the other end of the tubular member 400 is connected to a metal spraying head 500, and an injection channel 600 is provided in the tubular member 400 for injecting liquid. The two ends of the liquid channel 600 are respectively connected to the lumen of the connecting tube 300 and the needle lumen of the metal injection head 500. The tubular member 400 is flexible so that the metal injection head 500 can be extended into the body. A wire 700 is provided inside the side wall of the tubular member 400 along the length direction of the tubular member 400. One end of the wire 700 is electrically connected to a terminal 800 extending outside one end of the tubular member 400, and the other end of the wire 700 is electrically connected to the metal injection head 500. The extracorporeal high-voltage device 900 is connected to the terminal 800 via a power cord 910.

[0030] The injection liquid can be preloaded in the extracorporeal injection device 100. The connecting tube 300, the injection channel 600 and the metal injection head 500 are connected in sequence, the tubular member 400 is flexible, and the metal injection head 500 is extended into the body through the tubular member 400 and moved to the target position. The extracorporeal injection device 100 injects the injection liquid toward the target position (wound) through the connecting tube 300, the injection channel 600 and the metal injection head 500, and the extracorporeal high-voltage device 900 makes the metal injection head 500 conductive through the power cord 910, the terminal 800 and the wire 700, so that the injection liquid injected toward the target position forms a spinning, thereby treating the target position for related diseases.

[0031] When the electrospinning system is used, the in vitro injection device 100, the handle 200, one end of the tubular member 400 and the in vitro high-voltage device 900 are all outside the body, and the in vitro injection device 100 can be timely filled with injection liquid and the injection can be started, so that the electrospinning system can be used immediately. One end of the tubular member 400 is connected to the handle 200, so the tubular member 400 and the metal injection head 500 can be conveniently operated through the handle 200.

[0032] When the tubular member 400 is long enough and soft enough, the tubular member 400 and the metal injection head 500 can enter the body through the channels of minimally invasive surgical tools such as laparoscopes, gastroscopes, bronchoscopes and enteroscopes, and perform minimally invasive surgery in conjunction with various minimally invasive surgical tools, thereby treating target locations inside the human body such as the abdominal cavity, oral cavity, esophagus, trachea and intestines, and is suitable for a variety of in vivo scenarios under minimally invasive surgery.

[0033] The connecting tube 300 and the extracorporeal injection device 100, the connecting tube 300 and the handle 200, one end of the tubular member 400 and the handle 200, and the other end of the tubular member 400 and the metal injection head 500 are all connected in a detachable manner, such as plug-in or socket-connected, to transport and store the above components. When needed, the components can be immediately assembled into an electrospinning system.

[0034] When the electrospinning system is not in use, the two ports of the connecting tube 300, the two ports of the tubular member 400 and the two ports of the handle 200 can be sealed with plugs to prevent the key components of the electrospinning system from being contaminated.

[0035] See also Figure 1In some embodiments, the extracorporeal spraying device 100 includes a liquid injection group 110 and a gas injection group 120. The outlet of the liquid injection group 110, the outlet of the gas injection group 120 and one end of the connecting tube 300 are connected through a three-way connection. The liquid injection group 110 is used to store the spray liquid, and the gas injection group 120 is used to inject gas into the connecting tube 300. When the gas injection group 120 injects gas into the connecting tube 300, the spray liquid in the liquid injection group 110 can be sucked into the connecting tube 300, and the spray liquid is then pushed toward the handle 200, the tubular member 400 and the metal spray head 500 by the gas, and the spray liquid is finally sprayed to the target position.

[0036] In some embodiments, the outlet of the liquid injection group 110 is connected to the first end of the tee through the liquid outlet pipe, the outlet of the gas injection group 120 is connected to the second end of the tee through the gas outlet pipe, one end of the connecting pipe 300 is connected to the third end of the tee, the liquid outlet pipe is provided with a liquid valve 130, and the gas outlet pipe is provided with an air valve 140. By closing the gas injection group 120, the air valve 140 and the liquid valve 130, the injection of liquid can be stopped, thereby stopping spinning; and by opening the gas injection group 120, the air valve 140 and the liquid valve 130, the injection of the injection liquid can be carried out. The amount of the injection liquid sucked into the connecting pipe 300 can be controlled by the gas injection group 120 and the air valve 140, thereby controlling the efficiency and effect of the injection.

[0037] During the injection process, a certain amount of injection liquid will remain in the connecting tube 300 and the tubular component 400. To avoid waste caused by this situation, after observing that the target amount of injection liquid has been injected, the liquid valve 130 is closed, the gas valve 140 is opened, and the gas ejected from the gas injection group 120 is used to push the injection liquid to continue spinning.

[0038] It is understandable that the liquid injection group 110 and the gas injection group 120 can be a liquid storage tank and a syringe respectively. The gas injection group 120 also includes a linear drive mechanism, the output end of which is connected to the piston rod of the syringe, and the linear drive mechanism is used to drive the piston rod of the syringe, thereby realizing the function of the gas injection group 120 to spray gas.

[0039] The electrospinning system further comprises a housing, in which the liquid injection group 110, the gas injection group 120, the liquid valve 130, the gas valve 140 and the linear drive mechanism are all arranged. The housing is made of insulating polymer material. The linear drive mechanism is a lead screw pair.

[0040] The wire 700 is coated with an insulating layer and can be bent along with the tubular member 400 .

[0041] The electrospinning system also includes an electrically connected injection control system and a battery. The injection control system has an input / output module. The injection control system is electrically connected to the motor of the screw pair. The injection control system controls the rotation speed of the motor to control the movement speed of the piston, thereby achieving the injection speed and the spinning speed to ensure the quality of spinning.

[0042] The gas valve 140 and the liquid valve 130 may also be common electric switch valves on the market, and both the gas valve 140 and the liquid valve 130 are electrically connected to the injection control system, and the injection control system controls the opening and closing of the gas valve 140 and the liquid valve 130. Of course, the gas valve 140 and the liquid valve 130 may be common manual switch valves on the market, and the gas valve 140 and the liquid valve 130 may be opened or closed manually.

[0043] The in vitro high voltage device 900 includes a high voltage power generator, which is electrically connected to a battery. There are two power lines 910, which are electrically connected to the positive output terminal and the negative output terminal of the high voltage power generator, respectively. One power line 910 is electrically connected to the terminal 800, and the other power line 910 is grounded / connected to the housing. The high voltage power generator is electrically connected to the injection control system, and the output voltage of the high voltage power generator is adjusted by the injection control system. It is understandable that the voltage output by the in vitro high voltage device 900 reaches 20KV. For electrical equipment, it is customary to classify 1KV and above as high voltage, and below 1KV as low voltage.

[0044] See also Figure 3 and Figure 4 In some embodiments, the tubular member 400 includes an injection tube 410 and a protective sleeve 420 sleeved outside the injection tube 410 , and the wire 700 is arranged between the injection tube 410 and the protective sleeve 420 , and the protective sleeve 420 serves to protect the wire 700 and the injection tube 410 .

[0045] The lumen of the injection tube 410 is an injection channel 600 , one end of the injection tube 410 is connected to the handle 200 , and the other end of the injection tube 410 is connected to a metal injection head 500 . The terminal 800 is disposed on one end of the protective cover 420 and connected to one end of the wire 700 .

[0046] See also Figure 4 In some of the embodiments, the liquid outlet end of the metal injection head 500 is flush with or immersed in the port at the other end of the protective sleeve 420, and the protective sleeve 420 serves to protect the entire metal injection head 500.

[0047] The protective cover 420 is made of polymer material, and can be 50-150 cm in length, 2-6 mm in outer diameter, and 1.8-5.8 mm in inner diameter. The outer diameter of the injection tube 410 can be 1.6-5.6 mm, and the inner diameter of the injection tube 410 can be 1.5-5.5 mm.

[0048] In some embodiments, the metal injection head 500 includes a connection portion 510 and a needle 520 penetrating the connection portion 510, and the connection portion 510 is sleeved or plugged with the other end of the injection tube 410, so that the entire metal injection head 500 is connected to the other end of the injection tube 410. The needle 520 is tubular, and the needle 520 has a needle cavity connected to the injection channel 600. The inner diameter of the needle 520 can be 0.1-0.8 mm.

[0049] In some embodiments, the cross-sectional shape of the connection portion 510 matches the cross-sectional shape of the outer wall of the injection tube 410, and the metal injection head 500 and the injection tube 410 are connected in such a way that the connection portion 510 is sleeved on the injection tube 410; or the cross-sectional shape of the connection portion 510 matches the cross-sectional shape of the inner wall of the injection tube 410, and the metal injection head 500 and the injection tube 410 are connected in such a way that the connection portion 510 is plugged on the injection tube 410. Both of the above methods can achieve the convenience of connecting the metal injection head 500 and the injection tube 410 and the sealing between the metal injection head 500 and the injection tube 410.

[0050] It is conceivable that the cross-sectional shapes of the outer wall of the injection tube 410 and the inner wall of the injection tube 410 are both regular polygons, such as one of a regular quadrilateral, a regular pentagon, a regular hexagon, a regular heptagon, a regular octagon and a regular enneagon. The injection tube 410 with a regular polygonal outer wall and a regular polygonal inner wall is easy to process, and can ensure the reliability of the connection between the injection tube 410 and the metal injection head 500, avoiding the metal injection head 500. Of course, the cross-sectional shapes of the outer wall of the injection tube 410 and the inner wall of the injection tube 410 can also be circular.

[0051] It is understandable that, on the injection tube 410, only the cross-sectional shape of the outer wall or the cross-sectional shape of the inner wall of a part of the area on the other end of the injection tube 410 is a regular polygon, and the cross-sectional shape of other areas of the injection tube 410 is annular.

[0052] See also Figure 3 In some embodiments, a conductive sheet 710 is provided between one end of the injection tube 410 and one end of the protective cover 420, a through hole is provided on the side wall of one end of the protective cover 420, a terminal 800 is passed through the through hole and connected to the wire 700 through the conductive sheet 710, the conductive sheet 710 can strengthen the connection strength between the wire 700 and the terminal 800, improve the conductive performance, and the terminal 800 and the power cord 910 are away from the metal injection head 500 to prevent the power cord 910 from interfering with the movement of one end of the tubular member 400 and the metal injection head 500.

[0053] The terminal 800 and the conductive sheet 710 are connected to each other, and the conductive sheet 710 and the conductive wire 700 are connected to each other by welding.

[0054] See also Figure 2 In some embodiments, the handle 200 includes a hand-held portion 210 and a main body 220 connected to each other. The hand-held portion 210 and the main body 220 form a cavity, and an intermediate tube is provided in the cavity. The hand-held portion 210 is provided with a liquid inlet interface connected to the connecting tube 300, and the main body 220 is provided with a liquid removal interface connected to one end of the tubular member 400. The liquid inlet interface and the liquid removal interface are connected through the intermediate tube.

[0055] It is conceivable that the connection between the connecting pipe 300 and the liquid inlet interface and the liquid outlet interface and the tubular member 400 is by plug-in connection or sleeve connection.

[0056] In some of the embodiments, the hand-held portion 210 and the main body 220 are at an obtuse angle, so as to facilitate the hand-held portion 210 to operate the main body 220 and the movement of the tubular member 400 .

[0057] Specifically, the middle of the main body 220 is connected to one end of the handheld part 210, the liquid removal interface is provided at one end of the main body 220, and the liquid inlet interface is provided at the other end of the handheld part 210, and the connection point between the main body 220 and the handheld part 210 is used as the endpoint of the two rays, one ray extends toward the liquid inlet interface, and the other ray extends toward the liquid removal interface, and the angle between the two rays is an obtuse angle. The size of the obtuse angle is 95-145°.

[0058] In one embodiment, the electrospinning system can be used in conjunction with a laparoscope. The length of the protective sleeve 420 is 35 cm and the outer diameter is 4 mm; after the metal injection head 500 is connected to the other end of the injection tube 410 of the tubular member 400, the metal injection head 500 is in the protective sleeve 420, and the needle 520 is flush with the port of the protective sleeve 420; one end of the tubular member 400 is connected to the handle 200, and the handle 200 is connected to the extracorporeal injection device 100 through the connecting tube 300, and the extracorporeal high-pressure device 900 is connected to the terminal 800 through the power cord 910; the injection liquid is added to the injection group 110 / liquid storage tank, the metal injection head 500 enters the body through the laparoscope, finds the target position, opens the extracorporeal high-pressure device 900, opens the gas injection group 120, starts the injection, and then spinning can be performed to treat related diseases.

[0059] In another embodiment, the electrospinning system can be used in conjunction with a gastroscope. The length of the protective sleeve 420 is 135 cm, the outer diameter is 2.5 mm, and the inner diameter is 2.1 mm; the outer diameter of the injection tube 410 of the tubular member 400 is 2 mm, the inner diameter is 1.8 mm, and the inner diameter of the needle 520 of the metal injection head 500 is 0.2 mm; after the metal injection head 500 is connected to the other end of the injection tube 410 of the tubular member 400, the metal injection head 500 is in the protective sleeve 420, and the needle 520 is flush with the port of the protective sleeve 420; One end of the tubular member 400 is connected to the handle 200, the handle 200 is connected to the extracorporeal injection device 100 through the connecting tube 300, and the extracorporeal high-pressure device 900 is connected to the terminal 800 through the power cord 910; the injection liquid is added to the injection group 110 / liquid storage tank, the metal injection head 500 enters the body through the gastroscope, finds the target position, turns on the extracorporeal high-pressure device 900, turns on the gas injection group 120, starts the injection, and spinning can be carried out to treat related diseases.

[0060] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An instant medical electrospinning system, characterized in that: include: An extracorporeal spraying device, used for storing a spraying liquid and spraying the spraying liquid; A handle connected to the extracorporeal injection device via a connecting tube, wherein the connecting tube is used to transport the injection liquid; A tubular member, one end of which is connected to the handle, and the other end of which is connected to a metal injection head, an injection channel is provided in the tubular member, and the two ends of the injection channel are respectively connected to the lumen of the connecting tube and the needle lumen of the metal injection head, the tubular member is flexible so that the metal injection head can be extended into the body, a wire is provided in the side wall of the tubular member along the length direction of the tubular member, one end of the wire is electrically connected to a terminal extending outside one end of the tubular member, and the other end of the wire is electrically connected to the metal injection head; An extracorporeal high voltage device is connected to the terminal via a power line.

2. The instant medical electrospinning system according to claim 1, characterized in that: The extracorporeal injection device comprises a liquid injection group and a gas injection group, and the outlet of the liquid injection group, the outlet of the gas injection group and one end of the connecting tube are connected through a tee.

3. The instant medical electrospinning system according to claim 2, characterized in that: The outlet of the liquid injection group is connected to the first end of the tee through a liquid outlet pipe, the outlet of the gas injection group is connected to the second end of the tee through an air outlet pipe, one end of the connecting pipe is connected to the third end of the tee, a liquid valve is provided on the liquid outlet pipe, and an air valve is provided on the air outlet pipe.

4. The instant medical electrospinning system according to claim 1, characterized in that: The tubular component includes an injection tube and a protective sleeve sleeved outside the injection tube, the wire is arranged between the injection tube and the protective sleeve, the lumen of the injection tube is the injection channel, one end of the injection tube is connected to the handle, the other end of the injection tube is connected to the metal injection head, and the terminal is arranged on one end of the protective sleeve and connected to one end of the wire.

5. The instant medical electrospinning system according to claim 4, characterized in that: The liquid outlet end of the metal injection head is flush with the port at the other end of the protective sleeve or is immersed in the port at the other end of the protective sleeve.

6. The instant medical electrospinning system according to claim 4, characterized in that: The metal injection head comprises a connecting portion and a needle penetrating the connecting portion, and the connecting portion is sleeved or plugged with the other end of the injection tube.

7. The instant medical electrospinning system according to claim 6, characterized in that: The cross-sectional shape of the connecting portion matches the cross-sectional shape of the outer wall of the liquid injection tube, or the cross-sectional shape of the connecting portion matches the cross-sectional shape of the inner wall of the liquid injection tube.

8. The instant medical electrospinning system according to claim 4, characterized in that: A conductive sheet is provided between one end of the injection tube and one end of the protective sleeve, a through hole is provided on the side wall of one end of the protective sleeve, the terminal is passed through the through hole and connected to the wire through the conductive sheet.

9. The instant medical electrospinning system according to claim 1, characterized in that: The handle includes a hand-held portion and a main body portion connected to each other, the hand-held portion and the main body portion enclose a cavity, an intermediate tube is provided in the cavity, the hand-held portion is provided with a liquid inlet interface connected to the connecting tube, the main body portion is provided with a liquid removal interface connected to one end of the tubular member, and the liquid inlet interface and the liquid removal interface are connected through the intermediate tube.

10. The instant medical electrospinning system according to claim 9, characterized in that: The hand-held portion and the main body form an obtuse angle.

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