Medical tissue glue applicator

Abstract

The utility model provides a medical tissue glue applicator. The medical tissue glue applicator comprises an applicator body, a multi-cavity tube and a protective sleeve. The applicator main body is used for mounting an injection device filled with tissue collagen liquid; the multi-cavity tube is connected with the applicator main body and is configured to receive and convey the tissue collagen liquid and the high-pressure gas; the multi-cavity tube is sleeved with the protective sleeve, the protective sleeve is used for protecting the multi-cavity tube, at least one part, away from the applicator body, in the multi-cavity tube is provided with a metal wire, and the metal wire is configured to enable at least one part of the multi-cavity tube to be bent.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical instruments, and in particular to a medical tissue glue applicator. Background Art

[0002] Medical tissue glue is a tissue adhesive used to bond human tissues. It can be directly applied or sprayed on wounds or wound surfaces for wound healing. Medical tissue glue, as a type of tissue glue, is a new type of functional polymer material with a hydrophilic group, a polymer with a three-dimensional network structure that can be swollen but insoluble in water. It has the characteristics of biosafety, modifiability, modifiability, and good mechanical properties, and has a wide range of applications in biomedicine, agriculture, industry, environmental protection and other fields. In the field of biomedicine, tissue glue can be used as a medical dressing to cover wounds and achieve rapid healing. In addition, tissue glue can also be used as a drug sustained-release carrier, tissue engineering material, oral application material, etc. Due to its porosity, softness, high water content, and high tissue compatibility, it has a very broad application prospect in the biomedical field. At present, there are many tissue glue materials on the market that are used in clinical hemostasis sealing. Utility Model Content

[0003] The purpose of the present disclosure is to provide a medical tissue glue applicator to solve the technical problems in the related art. The specific solution is as follows:

[0004] An embodiment of the present disclosure provides a medical tissue glue applicator, comprising: an applicator body, used to install an injection device containing tissue collagen liquid; a multi-lumen tube, connected to the applicator body, and configured to receive and transport the tissue collagen liquid and high-pressure gas; a protective sleeve, sleeved on the outside of the multi-lumen tube, used to protect the multi-lumen tube, wherein a metal wire is provided in at least a portion of the multi-lumen tube away from the applicator body, and the metal wire is configured to bend at least a portion of the multi-lumen tube.

[0005] In some embodiments, the metal wire penetrates the multi-lumen tube in the axial extension direction of the multi-lumen tube.

[0006] In some embodiments, the protective sleeve includes: a side opening, which is arranged at an end of the protective sleeve away from the applicator body, for assisting the bending of the multi-lumen tube.

[0007] In some embodiments, the side openings are arranged in pairs on the protective sleeve, and the side openings arranged in pairs have an axisymmetric structure.

[0008] In some embodiments, a plurality of side openings are provided on the protective sleeve, so as to enable the multi-lumen tube to achieve multi-section bending.

[0009] In some embodiments, the side opening is configured as an arc-shaped or polygonal opening, so as to enable the multi-lumen tube to maintain a stable bending position.

[0010] In some embodiments, the protective sleeve is a thermoplastic tube.

[0011] In some embodiments, the multi-lumen tube of the medical tissue glue applicator includes: a first cavity and a second cavity, which are arranged inside the multi-lumen tube and extend along the axial direction of the multi-lumen tube, and are used to transport tissue collagen liquid; a third cavity, which is arranged inside the multi-lumen tube and extends in the same direction as the first cavity, and is used to transport high-pressure gas to assist in mixing the materials transported in the first cavity and the second cavity and spraying them out by the mixing nozzle.

[0012] In some embodiments, the first lumen, the second lumen, and the third lumen are disposed in the multi-lumen tube surrounding the metal wire.

[0013] In some embodiments, the medical tissue glue applicator further comprises: a mixing nozzle, which is arranged at one end of the multi-lumen tube away from the applicator body, and is used to mix the tissue collagen liquid and spray it in a mist form. Compared with the related art, the above scheme of the embodiment of the present disclosure has at least the following beneficial effects:

[0014] The tissue glue applicator provided by the present disclosure designs the end of the multi-lumen tube into a bendable structure, that is, the multi-lumen tube can drive the mixing nozzle to bend, so that the tissue collagen liquid sprayed out after mixing can be more accurately applied to the wound surface. The bent mixing nozzle can spray the wound surface more accurately during use. In addition, the injection of high-pressure gas can increase the injection force and stability of the tissue collagen liquid, so that the injection pressure of the stock liquid is increased, and a mist spray can be formed to achieve full mixing and uniform spraying of the stock liquid. Especially in the process of applying tissue glue under laparoscope, because the high-pressure gas can provide a higher injection force, it is possible to achieve a higher injection pressure under the premise of a longer injection tube, thereby achieving spray-like coating.

[0015] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1is a schematic structural diagram of a tissue glue applicator according to an exemplary embodiment.

[0018] Figure 2 is an exploded view of a tissue glue applicator according to an exemplary embodiment.

[0019] Figure 3 is an exploded view of an applicator body shown according to an exemplary embodiment.

[0020] Figure 4 is a cross-sectional view of an applicator body according to an exemplary embodiment.

[0021] Figure 5 is a cross-sectional view of a multi-lumen tube according to an exemplary embodiment.

[0022] Figure 6 It is a schematic structural diagram of a mixing nozzle end of a tissue glue applicator according to an exemplary embodiment.

[0023] Reference numerals:

[0024] The fixing frame 100, the hollow portion 101, the lever structure 110, the pressing portion 111, the buckle portion 112, the cover plate 120, the clamping key 121, the injection device 130, the first syringe 131, the second syringe 132, the connecting member 140, the connecting portion 141, the clamping portion 142, the adapter 150, the adapter 151, the three-way pipe 160, and the protective shell 170;

[0025] Multi-lumen tube 200 , metal wire 210 , protective sleeve 300 , side opening 301 , mixing nozzle 400 . DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0027] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. The singular forms "a", "said" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, and other quantifiers are similar.

[0028] It should be understood that, although the terms first, second, third, etc. may be used to describe in the disclosed embodiments, these descriptions should not be limited to these terms. These terms are only used to distinguish the described objects. For example, without departing from the scope of the disclosed embodiments, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates other meanings.

[0030] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0032] Medical tissue glue has a very wide range of applications and can be applied to various wounds including those on the body surface and inside the body. In the related art, the application end of the tissue glue applicator has no bending structure, and the application of the tissue glue is mainly completed manually by directly pushing the double syringe. For wounds inside the body, especially wound glue application during laparoscopic surgery, it is very easy to have inaccurate spraying problems, and the application speed and application amount of direct push injection fluctuate greatly, and it is impossible to form a spray-like spray. In addition, when applying tissue glue under laparoscope, because the front end injection tube is too long, the gel mixture can only be applied in the form of droplets, and it is impossible to form a spray-like spray, resulting in uneven thickness of tissue glue application and uncontrollable range.

[0033] The present disclosure provides a tissue glue applicator, comprising: an applicator body, having a fixing frame, the fixing frame is used to install an injection device containing tissue collagen liquid; a multi-lumen tube, connected to the applicator body, and configured to receive and transport the tissue collagen liquid and high-pressure gas; a protective sleeve, sleeved on the outside of the multi-lumen tube, used to protect the multi-lumen tube; and a mixing nozzle, arranged at one end of the multi-lumen tube away from the applicator body, used to spray the tissue collagen liquid in a mist form; wherein at least a portion of the multi-lumen tube connected to the mixing nozzle is provided with a metal wire, and the metal wire is configured to bend at least a portion of the multi-lumen tube; the push rod of the injection device moves toward the mixing nozzle to complete the application of the tissue glue.

[0034] The tissue glue applicator provided by the present disclosure has an end portion designed as a bendable structure, that is, the multi-lumen tube can drive the mixing nozzle to bend, so that the tissue glue can be applied to the wound surface more accurately.

[0035] Compared with the tissue glue applicator in the related art, the tissue glue applicator with a bent mixing nozzle structure is more accurate in spraying the wound surface during use. In addition, the injection of high-pressure gas can increase the injection force and stability of the tissue collagen solution, increase the injection pressure of the stock solution, form a mist spray, and achieve full mixing and uniform spraying of the stock solution. Especially in the process of applying tissue glue under laparoscope, since the high-pressure gas can provide a higher injection force, it can achieve a higher injection pressure under the premise of a longer injection tube, and achieve spray coating.

[0036] The optional embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0037] Some embodiments of the present disclosure provide a medical tissue glue applicator, such as Figure 1 As shown, Figure 1 1 is a schematic structural diagram of a tissue glue applicator according to an exemplary embodiment. The tissue glue applicator comprises: an applicator body, a multi-lumen tube 200 , a protective sleeve 300 and a mixing nozzle 400 .

[0038] The applicator body is connected to the multi-lumen tube 200, and one end of the multi-lumen tube 200 away from the applicator body is connected to the mixing nozzle 400. The multi-lumen tube 200 is covered with a protective sleeve 300, which can protect the multi-lumen tube 200 from external squeezing. On the other hand, the protective sleeve 300 is provided with a side opening 301 on the surface, which can assist the multi-lumen tube 200 in bending, so that the multi-lumen tube 200 is more easily applied to the patient's wound.

[0039] When an external force is applied to the applicator body, the tissue collagen liquid inside the applicator body will be pushed into the multi-lumen tube 200. At the same time, the external high-pressure gas source is also transported from the multi-lumen tube 200 to the mixing nozzle 400. Finally, the mixed tissue glue is sprayed out in the form of mist at the mixing nozzle 400 and evenly applied to the wound surface. Figure 2 , Figure 3 As shown, Figure 2 is an exploded view of a tissue glue applicator according to an exemplary embodiment. Figure 3 1 is an exploded view of an applicator body according to an exemplary embodiment. The applicator body includes a fixing frame 100 , an injection device 130 , a connecting member 140 and an adapter 150 .

[0040] The fixing frame 100 is connected to the connecting member 140 . The fixing frame 100 has an accommodating space for accommodating the injection device 130 . The injection device 130 is connected to the connecting member 140 in the fixing frame 100 .

[0041] The fixing frame 100 is configured to fix the tube body of the injection device 130, so that the injection device 130 can be fixed relative to the connecting member 140. The fixing frame 100 and the connecting member 140 can be separate structures. In other embodiments, the fixing frame 100 and the connecting member 140 can also be an integrated structure.

[0042] In some embodiments, the injection device 130 may be a double syringe for containing tissue collagen solution. The injection device 130 includes a first syringe 131 and a second syringe 132 arranged in parallel with each other, the first syringe 131 and the second syringe 132 are respectively configured to contain a first stock solution and a second stock solution, the first stock solution and the second stock solution may be two different tissue collagen solutions, and tissue glue may be generated when the two tissue collagen solutions are mixed.

[0043] Each of the first syringe 131 and the second syringe 132 includes a tube body and a push rod. The tube body is used to contain the original liquid of tissue glue, at least a part of the push rod is arranged in the tube body, and a piston is arranged at the end of the push rod near the tube body; when the push rod moves toward the tube body, the piston pushes the original liquid of tissue collagen contained in the tube body to be discharged from the outlet of the tube body.

[0044] In some embodiments, the applicator body further includes a connector 140 , which is configured as a racetrack structure having a first surface and a second surface, wherein the first surface and the second surface are used to connect to the injection device 130 and the adapter 150 , respectively.

[0045] Specifically, at least one through hole is disposed through the surface of the connecting member 140 , and the through hole penetrates the connecting member 140 in a direction perpendicular to the first surface. The injection device 130 and the adapter 150 can be connected through the through hole.

[0046] In some embodiments, the surface of the connector 140 is provided with two through holes, and the two ends of the two through holes are respectively connected to the first syringe 131 and the second syringe 132 and the two ports of the adapter 150. At this time, the adapter 150 is connected to the tube bodies of the first syringe 131 and the second syringe 132 through the connector 140, and the tissue collagen liquid in the injection device 130 can enter the inside of the adapter 150.

[0047] Specifically, the adapter 150 is connected to the outlets of the tubes of the first syringe 131 and the second syringe 132 through the connector 140. After the tissue collagen liquid pushed out of the tube by the piston is discharged from the outlets of the tubes of the first syringe 131 and the second syringe 132, it directly enters the adapter 150, and further, it can be guided into the multi-lumen tube 200 through the adapter 150, and finally mixed at the mixing nozzle 400 and sprayed out of the tissue glue applicator in the form of mist.

[0048] In some embodiments, a connecting portion 141 is provided on the first surface of the connecting member 140, and a free end of the connecting portion 141 extends toward the direction away from the second surface. A clamping portion 142 is provided on the free end of the connecting portion 141, and the clamping portion 142 is used to clamp with the fixing frame 100, and the connection between the fixing frame 100 and the connecting member 140 is realized by clamping the clamping portion 142 with the fixing frame 100.

[0049] In some embodiments, the surface of the fixing frame 100 has a hollow portion 101, and a lever structure 110 is disposed inside the hollow portion 101.

[0050] like Figure 4 As shown, Figure 4 1 is a cross-sectional view of an applicator body according to an exemplary embodiment, wherein the middle portion of the lever structure 110 extends in a direction perpendicular to the axial direction of the multi-lumen tube 200 and is connected to the edge of the hollow portion 101, so that the lever structure 110 has a fulcrum. The lever structure 110 is used to detachably connect the fixing frame 100 to the connecting member 140.

[0051] Specifically, the lever structure 110 includes a pressing portion 111 and a buckle portion 112. The pressing portion 111 is disposed at one end of the lever structure 110 away from the multi-lumen tube 200 and is used for externally applying a force to press; the buckle portion 112 is disposed at one end of the lever structure 110 adjacent to the multi-lumen tube 200 and is used for buckling with the clamping portion 142.

[0052] In response to the external force pressing the pressing portion 111, the buckle portion 112 protrudes in a direction away from the fixing frame 100. At this time, the fixing frame 100 can be moved to a position for installation with the connecting member 140. Further, the buckle portion 112 of the fixing frame 100 is engaged with the engaging portion 142 of the connecting member 140 to complete the stable connection between the fixing frame 100 and the connecting member 140. The detachable connection between the fixing frame 100 and the connecting member 140 can be used to realize the rapid replacement of the injection device 130.

[0053] In some embodiments, the applicator body further includes a cover plate 120, which can be snapped onto an end of the fixing frame 100 away from the connecting member 140 to close the accommodating cavity. The cover plate 120 is detachably connected or pivotally connected to the fixing frame 100. The cover plate 120 can be removed or opened, and the injection device 130 can be conveniently installed in the tissue glue applicator or removed from the tissue glue applicator, which is convenient for replacing the injection device 130. A pair of snap-in keys 121 are arranged on one side of the cover plate 120 away from the fixing frame 100, which are used to snap-in the injection device 130 so that the injection device 130 is fixed to the surface of the cover plate 120.

[0054] In some embodiments, the injection device 130 also includes a push plate 133, which is connected to the ends of the push rods of the first syringe 131 and the second syringe 132 away from the tube body, and is configured to synchronously push the push rods of the first syringe 131 and the second syringe 132, so that the push rods of the first syringe 131 and the second syringe 132 move synchronously toward the syringe outlet direction, so that the first stock solution and the second stock solution in the first syringe 131 and the second syringe 132 are synchronously output.

[0055] In some embodiments, the applicator body also includes a three-way tube 160, the first through hole of the three-way tube 160 is used to connect the adapter 150 to receive the first and second stock solutions in the first syringe 131 and the second syringe 132, the second through hole of the three-way tube 160 is used to receive gas, and the third through hole of the three-way tube 160 is connected to the multi-lumen tube 200, so that the first stock solution, the second stock solution and the high-pressure gas are respectively input into the three chambers of the multi-lumen tube 200, and then transported by the multi-lumen tube 200 toward the mixing nozzle 400.

[0056] In some embodiments, an adapter 151 is disposed between the three-way pipe 160 and the connecting member 140 , and the adapter 151 is used to assist in connecting the three-way pipe 160 with the connecting member 140 .

[0057] A protective shell 170 is sleeved on the outside of the three-way pipe 160, and the protective shell 170 is clamped with the connecting member 140 to protect the three-way pipe 160. The outer wall of the protective shell 170 is in the same plane as the outer wall of the fixing frame 100, so that the outer surface of the tissue glue applicator is smooth and more convenient for medical staff to operate.

[0058] In some embodiments, the two ends of the multi-lumen tube 200 are respectively connected to the third through hole of the three-way tube 160 and the mixing nozzle 400, and at least a portion of the multi-lumen tube 200 connected to the mixing nozzle 400 is provided with a metal wire 210, and the metal wire 210 is configured to bend at least a portion of the multi-lumen tube 200.

[0059] like Figure 5 As shown, Figure 5 2 is a cross-sectional view of a multi-lumen tube 200 according to an exemplary embodiment, wherein a metal wire 210 is disposed in the middle of the cross-section of the multi-lumen tube 200, and the multi-lumen tube 200 can be bent by disposing the metal wire 210. In clinical practice, the spray direction of the mixing nozzle 400 can be changed by bending the end of the multi-lumen tube 200, and further, the tissue glue spraying can be made more accurate.

[0060] A protective sleeve 300 is disposed outside the multi-lumen tube 200 . A side opening 301 is penetrated through the protective sleeve 300 . The side opening 301 can assist the multi-lumen tube 200 in bending.

[0061] Specifically, the side opening 301 can be separately provided on the protection sleeve 300 , and the protection sleeve separately provided with the side opening 301 can be bent in a direction opposite to the opening direction of the side opening 301 .

[0062] The side opening is configured as an arc-shaped or polygonal opening, and is used to keep the multi-lumen tube in a stable bending position.

[0063] It should be separately explained that the present disclosure does not limit the shape of the side opening 301 , and the side opening 301 can be an arc-shaped or polygonal opening, or any other opening shape that can bend the multi-lumen tube 200 .

[0064] In some embodiments, the side openings 301 may be arranged in pairs at one end of the protective sleeve 300 adjacent to the mixing nozzle 400, such as Figure 6As shown, Figure 6 It is a schematic structural diagram of a mixing nozzle 400 end of a tissue glue applicator according to an exemplary embodiment. The side openings 301 arranged in pairs have an axisymmetric structure and are used to assist the multi-lumen tube 200 in bending to change the direction of the end of the mixing nozzle 400.

[0065] In some embodiments, the side opening 301 may be provided in plurality on the protective sleeve 300, so as to enable the multi-lumen tube 200 to be bent in multiple sections, so as to make the spraying of the mixing nozzle 400 more accurate and facilitate the operation of the doctor. The protective sleeve 300 may be a thermoplastic plastic tube, so as to assist the bending of the multi-lumen tube 200 with the metal wire 210.

[0066] Specifically, the multi-lumen tube 200 can be bent at the side opening 301 to bend the mixing nozzle 400, thereby changing the spraying angle of the tissue glue applicator on the patient's wound to achieve more accurate and uniform mist coating.

[0067] In some embodiments, the mixing nozzle 400 is disposed on a side of the multi-lumen tube 200 away from the injection device 130, and the multi-lumen tube 200 is connected to the adapter 150 to transmit the first stock solution, the second stock solution and the high-pressure gas. The mixing nozzle 400 is configured to mix the first stock solution and the second stock solution and spray them out to achieve mist coating.

[0068] The multi-lumen tube 200 is provided with at least three cavities, which are used to transmit the first stock solution, the second stock solution and the high-pressure gas respectively. The materials to be mixed in the three cavities are collected and mixed at the mixing nozzle 400. The mixing nozzle 400 is provided with a containing space for mixing the first stock solution and the second stock solution. The tissue glue formed after mixing can be sprayed out in a mist form from the outlet of the mixing nozzle 400 under the pressure of the high-pressure gas.

[0069] Specifically, the three cavities of the multi-lumen tube 200 extend along the axial direction of the tissue applicator and are evenly distributed in parallel. The first cavity and the second cavity are respectively used to transport two tissue collagen solutions, which are mixed in the mixing nozzle 400 to form a tissue glue mixture. The third cavity of the multi-lumen tube 200 is used to transport gas, which is a high-pressure gas, to assist in mixing the two tissue collagen solutions, and to evenly spray the mixed tissue glue mixture on the affected area to form a homogeneous tissue glue film layer. In addition, a metal wire 210 is provided in at least a portion of the multi-lumen tube 200 adjacent to the mixing nozzle 400, and the metal wire 210 is configured to bend at least a portion of the multi-lumen tube 200 to change the spray direction of the mixing nozzle 400, so that the application of the tissue glue mixture is more accurate.

[0070] In some embodiments, the metal wire 210 penetrates the multi-lumen tube 200 in the axial extension direction of the multi-lumen tube 200. The present disclosure is a medical tissue glue applicator, which is suitable for uniformly applying mixed tissue glue to the wound of the patient. The tissue glue in the present disclosure refers to a medical product that is mixed with two components to form a glue, wherein the two components are usually a first stock solution and a second stock solution. The mixing of the two stock solutions can react quickly and fully, thereby greatly accelerating the reaction speed, and the properties of the formed tissue glue mixture are also more uniform and pure. The medical tissue glue applicator provided in the present disclosure is suitable for applying such a tissue glue mixture formed by mixing two-component tissue collagen solutions, and is particularly suitable for the application of medical tissue glue under laparoscopy.

[0071] The multi-lumen tube used in the present disclosure includes a plurality of cavities extending in the length direction, preferably, it may include three cavities (see Figure 5 ), these cavities are used to transport fluids and ensure that the fluids are separated from each other during the transport process. The multi-lumen tube can include more cavities, and more cavities can transport the same or different fluids as the previous cavities, or can be left empty. For example, when the fluid flow rate transported by a single cavity cannot meet the demand, more cavities can be used to transport the same fluid, thereby increasing its flow rate.

[0072] The specific structure, working principle, and beneficial effects of the medical tissue glue applicator provided by the embodiments of the present disclosure can refer to the medical tissue glue applicator described in any of the above embodiments, and will not be elaborated here.

[0073] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the system or device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0074] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A medical tissue glue applicator, characterized in that: include: An applicator body, used to mount an injection device filled with tissue collagen solution; a multi-lumen tube connected to the applicator body and configured to receive and deliver the tissue collagen solution and high-pressure gas; A protective sleeve is sleeved outside the multi-lumen tube to protect the multi-lumen tube. Wherein, a metal wire is arranged in at least a portion of the multi-lumen tube away from the applicator body, and the metal wire is configured to bend at least a portion of the multi-lumen tube.

2. The medical tissue glue applicator according to claim 1, characterized in that: The metal wire penetrates the multi-lumen tube in the axial extension direction of the multi-lumen tube.

3. The medical tissue glue applicator according to claim 1, characterized in that: The protective sleeve comprises: A side opening is provided at one end of the protective sleeve away from the applicator body, and is used to assist in the bending of the multi-lumen tube.

4. The medical tissue glue applicator according to claim 3, characterized in that: The side openings are arranged in pairs on the protective sleeve, and the side openings arranged in pairs have an axisymmetric structure.

5. The medical tissue glue applicator according to claim 3, characterized in that: The protective sleeve is provided with a plurality of side openings for realizing multi-section bending of the multi-lumen tube.

6. The medical tissue glue applicator according to claim 3, characterized in that: The side opening is configured as an arc-shaped or polygonal opening, and is used to keep the multi-lumen tube in a stable bending position.

7. The medical tissue glue applicator according to claim 1, characterized in that: The protective sleeve is a thermoplastic plastic tube.

8. The medical tissue glue applicator according to claim 1, characterized in that: Also includes: The mixing nozzle is arranged at one end of the multi-lumen tube away from the applicator body, and is used for mixing the tissue collagen liquid and spraying it out in a mist form.

9. The medical tissue glue applicator according to claim 8, characterized in that: The multi-lumen tube comprises: The first cavity and the second cavity are arranged inside the multi-lumen tube, extending along the axial direction of the multi-lumen tube, and are used to transport tissue collagen liquid; The third cavity is arranged inside the multi-cavity tube and extends in the same direction as the first cavity, and is used to convey high-pressure gas to assist the materials conveyed in the first cavity and the second cavity to be mixed and sprayed out by the mixing nozzle.

10. The medical tissue glue applicator according to claim 9, characterized in that: The first cavity, the second cavity and the third cavity are arranged in the multi-cavity tube around the metal wire.

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