Endoscope injection needle with short needle head

Abstract

The utility model provides an injection needle with a short needle head for an endoscope, which relates to the technical field of medical instruments and comprises a main body, a liquid injection tube is arranged on one side of the main body, and a liquid injection head and a liquid injection needle are arranged at the tail end of the liquid injection tube; the injection assembly is arranged in the main body and is used for injecting liquid medicine into the body of a patient along with the endoscopic tube; and the protection assembly is arranged on one side of the liquid injection needle and used for protecting the liquid injection needle. According to the device, the protection assembly and the injection assembly are matched, the protection assembly can be used for protecting the needle head part before injection, the needle head is prevented from being inserted into the inner wall of the endoscopic tube in the needle inserting process, meanwhile, effective liquid injection work can be conducted after needle inserting is completed, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an injection needle for endoscope with a short needle. Background Art

[0002] The disposable endoscopic injection needle needs to be used in conjunction with an endoscope for submucosal injection in the digestive tract. When in use, connect the syringe filled with medicine to the conical joint of the rear handle, push the syringe piston to exhaust the air in the inner tube until the medicine is seen flowing out at the needle tip, and confirm that the medicine does not leak out from anywhere other than the needle tip. Insert the instrument into the forceps hole of the endoscope until it appears in the endoscopic field of view, then select a suitable injection site, insert the needle into the target tissue, push the syringe piston to perform the injection operation, and after the injection is completed, remove the product from the endoscope. This disposable endoscopic injection needle is mainly composed of a needle, an inner infusion tube, an outer tube, a sheath tube, a booster tube, a front handle, and an injection handle.

[0003] In actual use, common existing devices on the market, such as the "disposable endoscopic injection needle" with Chinese publication number CN220833114U, still have certain defects in use. For example, during use, it is difficult for common injection needles to protect the needle tip. When inserting the needle into the endoscope, the needle tip is easily inserted into the inner wall, which affects the insertion and drug administration, and has the defect of poor practicality. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the background technology and provide an injection needle for endoscopy with a short needle, so as to improve the defect that the common injection needles on the market are easily plugged into the inner wall of the endoscope during the needle insertion process and cause jamming.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a short-needle endoscopic injection needle, comprising: a main body, one side of which is provided with an injection tube, the end of which is provided with an injection head and an injection needle; an injection component, arranged inside the main body, for injecting the drug solution into the patient's body along with the endoscope; and a protection component, arranged on one side of the injection needle, for protecting the injection needle.

[0006] Furthermore, the injection assembly includes: a liquid injection cavity opened inside the main body, a liquid injection block slidably connected inside the liquid injection cavity; and a push rod arranged on one side of the liquid injection block.

[0007] Furthermore, the protection component includes: an adjustment cavity opened inside the injection head, an adjustment plate slidably connected inside the adjustment cavity; a support rod arranged on one side of the adjustment plate, multiple ends of the support rods are stacked on each other, and multiple ends of the support rods are overlapped to form a protective layer, and the injection needle is located inside the protective layer; two winding rods rotatably connected to one side of the main body, an adjustment rope is connected to one side of the adjustment plate, and the other end of the adjustment rope is connected to the surface of the winding rod.

[0008] Furthermore, limiting grooves are provided on the inner walls on both sides of the liquid injection cavity, limiting blocks are provided on both sides of the liquid injection block, and the limiting blocks are slidably connected to the limiting grooves.

[0009] Furthermore, buckle plates are provided on both sides of the main body, and the buckle plates are located on the side of the main body facing the push rod.

[0010] Furthermore, the winding rod is slidably connected with a positioning block, the main body is provided with a positioning slot on one side of the winding rod, and the positioning block and the positioning slot are engaged with each other.

[0011] Furthermore, a plurality of anti-skid lines are provided on the surface of the winding rod, and the plurality of anti-skid lines are equidistantly distributed.

[0012] Furthermore, the ends of the plurality of support rods are provided with connecting blocks, and the connecting blocks are made of rubber material.

[0013] Furthermore, a plurality of protective rollers are provided on a side of the injection head close to the injection needle, and the plurality of protective rollers are equidistantly distributed along the circumference of the injection head.

[0014] Furthermore, a supporting mesh cover is provided inside the injection tube, and the supporting mesh cover is made of interwoven metal materials.

[0015] The utility model provides a short-needle endoscopic injection needle, which has the following beneficial effects:

[0016] The advantage of the utility model lies in that the protection component is used in conjunction with the injection component. Before injection, the protection component can be used to protect the needle tip to prevent the needle tip from being inserted into the inner wall of the endoscope during the needle insertion process. At the same time, effective liquid injection can be performed after the needle insertion is completed, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a sectional view of the overall structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the winding rod structure of the utility model.

[0020] Figure 4 This is a schematic diagram of the support mesh structure of the utility model.

[0021] Figure 5 For the utility model Figure 2 A is an enlarged schematic diagram.

[0022] Figure 6 For the utility model Figure 2 The enlarged schematic diagram of point B in FIG.

[0023] Figure 1-6 Middle: 1-main body; 101-liquid injection cavity; 102-limiting groove; 103-liquid injection block; 104-limiting block; 105-push rod; 106-winding rod; 107-positioning block; 108-positioning slot; 109-buckle plate 2-liquid injection tube; 201-liquid injection head; 202-liquid injection needle; 203-adjusting cavity; 204-adjusting plate; 205-support rod; 206-connecting block; 207-adjusting rope; 208-support mesh cover; 209-protective roller. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0025] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0026] The embodiment of the present application provides a short-needle endoscopic injection needle, which can be matched with a protective component and an injection component. The protective component can be used to protect the needle tip before injection to prevent the needle tip from being inserted into the inner wall of the endoscope during the needle insertion process. At the same time, effective injection can be performed after the needle insertion is completed, thereby improving the practicality of the device. The short-needle endoscopic injection needle is described in detail below. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.

[0027] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] Example 1

[0029] See also Figure 1-6 In this embodiment, a short-needle endoscopic injection needle is provided, comprising: a main body 1, an injection tube 2 is provided on one side of the main body 1, and an injection head 201 and an injection needle 202 are provided at the end of the injection tube 2; an injection component is arranged inside the main body 1, and is used to inject the medicine into the patient's body along the endoscope; and a protection component is arranged on one side of the injection needle 202, and is used to protect the injection needle 202. During use, the user can immerse the injection needle 202 in the medicine, and reversely suck the material through the injection component, and insert the injection tube 2 into the endoscope to cooperate with the endoscope for injection. At the same time, the protection component can be used to protect the injection needle 202 to prevent the injection needle 202 from being damaged and twisted, thereby improving the stability of the device.

[0030] Furthermore, the injection assembly includes: an injection chamber 101 opened inside the main body 1, and an injection block 103 is slidably connected inside the injection chamber 101; a push rod 105 is arranged on one side of the injection block 103. During use, the user can push the push rod 105 to drive the injection block 103 to move. At this time, the moving injection block 103 can generate positive pressure or negative pressure inside the injection chamber 101. When the inside of the injection chamber 101 is in a negative pressure state, it can generate attraction for the material from the injection needle 202, and the drug solution can be extracted during the attraction, so as to facilitate subsequent injection. Conversely, when the user pushes the injection block 103, high pressure will be generated inside the injection chamber 101, and under the high pressure state, the drug solution will be injected from the injection chamber 101 and the injection tube 2 to complete the injection.

[0031] Furthermore, limiting grooves 102 are provided on the inner walls on both sides of the injection chamber 101, limiting blocks 104 are provided on both sides of the injection block 103, and the limiting blocks 104 are slidingly connected to the limiting grooves 102. During the injection process, it is necessary to push the injection block 103 to change the pressure inside the injection chamber 101, thereby realizing the injection operation. In this process, the sliding connection between the limiting grooves 102 and the limiting blocks 104 can be used to limit the injection block 103 by the sliding connection between the limiting grooves 102 and the limiting blocks 104, thereby preventing the injection block 103 from being offset and stuck, thereby improving the applicability of the device.

[0032] Furthermore, buckle plates 109 are provided on both sides of the main body 1, and the buckle plates 109 are located on the side of the main body 1 facing the push rod 105. During use, when the user needs to push the push rod 105 toward the main body 1, the user can overlap the buckle plates 109 with his fingers and pull the push rod 105 to move under the action of the overlap, so as to complete the injection of the liquid medicine. The buckle plates 109 provide a support point, allowing the user to inject the liquid medicine more stably and conveniently.

[0033] Furthermore, a plurality of protective rollers 209 are provided on the side of the injection head 201 close to the injection needle 202, and the plurality of protective rollers 209 are equidistantly distributed along the circumference of the injection head 201. During use, the injection head 201 needs to move in the endoscope, and the protective rollers 209 can reduce the friction between the injection head 201 and the inner wall of the endoscope, thereby preventing the device from getting stuck easily and being difficult to slide due to excessive friction between the injection head 201 and the endoscope, thereby improving the convenience of needle insertion of the device.

[0034] Furthermore, a supporting mesh cover 208 is provided inside the injection tube 2. The supporting mesh cover 208 is made of interwoven metal materials. During use, the supporting mesh cover 208 can improve the overall toughness of the injection tube 2. In this process, the user can apply force to the injection tube 2 more forcefully, allowing the injection tube 2 to be inserted more stably, thereby improving the practicability of the device.

[0035] Example 2

[0036] On the basis of Example 1, the protection component includes: an adjustment chamber 203 opened inside the injection head 201, and an adjustment plate 204 is slidably connected inside the adjustment chamber 203; a support rod 205 is arranged on one side of the adjustment plate 204, and the ends of multiple support rods 205 are stacked on each other, and the ends of multiple support rods 205 are overlapped to form a protective layer, and the injection needle 202 is located inside the protective layer; two winding rods 106 rotatably connected to one side of the main body 1, and an adjustment rope 207 is connected to one side of the adjustment plate 204, and the other end of the adjustment rope 207 is connected to the surface of the winding rod 106;

[0037] During use, the user can use multiple support rods 205 to form a protective layer on one side of the injection needle 202 to protect the injection needle 202, so as to prevent the injection needle 202 from contacting the inner wall of the endoscope or even puncturing the inner wall of the endoscope during the needle insertion process, thereby improving the needle insertion stability of the device. When the user inserts the injection needle 202 into the patient's body to reach the medication position, the user can rotate the winding rod 106. At this time, the rotation of the winding rod 106 will pull the adjustment rope 207. During the traction process, the adjustment rope 207 will drive the adjustment plate 204 to move toward the inner wall of the adjustment cavity 203. At the same time, the multiple support rods 205 on one side of the adjustment plate 204 will separate from each other and be stored as the adjustment plate 204 moves. In this process, the protection and restriction of the injection needle 202 can be quickly released to prevent the injection needle 202 from being damaged by collision, thereby improving the practicality of the device.

[0038] Furthermore, the winding rod 106 is slidably connected to a positioning block 107, and a positioning slot 108 is provided on one side of the winding rod 106 of the main body 1, and the positioning block 107 and the positioning slot 108 are engaged with each other. During use, the winding rod 106 is rotated to adjust the support rod 205 and separate the support rods 205 from each other. During normal use, the positioning block 107 will engage with the positioning slot 108, and the winding rod 106 can be limited during the engagement process to prevent the winding rod 106 from loosening and sliding, thereby preventing the adjustment plate 204 and the support rod 205 from being accidentally opened, resulting in the failure of protection for the injection needle 202, thereby improving the stability of the device.

[0039] Furthermore, a plurality of anti-skid grooves are provided on the surface of the winding rod 106, and the plurality of anti-skid grooves are equidistantly distributed. During use, the plurality of anti-skid grooves can increase the friction between the winding rod 106 and the user's hand. In this process, it can effectively prevent the user from having difficulty twisting the winding rod 106 to wind up, thereby improving the practicability of the device.

[0040] Furthermore, connecting blocks 206 are provided at the ends of the multiple support rods 205, and the connecting blocks 206 are made of rubber material. During use, the connecting blocks 206 made of rubber material play a connecting role between the multiple support rods 205, and begin to break quickly when the multiple support rods 205 receive traction force. While improving the overlapping protection capability between the ends of the multiple support rods 205, it can prevent the multiple support rods 205 from loosening and separating themselves, thereby improving the protection stability of the injection needle 202.

[0041] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0042] The above is a detailed introduction to a short-needle endoscopic injection needle provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A short needle endoscopic injection needle, characterized in that: include: A main body (1), wherein a liquid injection tube (2) is provided on one side of the main body (1), and a liquid injection head (201) and a liquid injection needle (202) are provided at the end of the liquid injection tube (2); An injection assembly, arranged inside the main body (1), and used to inject the drug solution into the patient's body through the endoscope; and A protection component is arranged on one side of the injection needle (202) and is used to protect the injection needle (202).

2. The short-needle endoscopic injection needle according to claim 1, characterized in that: The injection assembly comprises: A liquid injection cavity (101) is provided inside the main body (1), and a liquid injection block (103) is slidably connected inside the liquid injection cavity (101); A push rod (105) is arranged on one side of the liquid injection block (103).

3. The short-needle endoscopic injection needle according to claim 1, characterized in that: The protection component comprises: An adjusting cavity (203) is provided inside the liquid injection head (201), and an adjusting plate (204) is slidably connected inside the adjusting cavity (203); A support rod (205) is arranged on one side of the adjustment plate (204), the ends of a plurality of the support rods (205) are stacked on each other, and the ends of the plurality of the support rods (205) are overlapped to form a protective layer, and the injection needle (202) is located inside the protective layer; Two reeling rods (106) are rotatably connected to one side of the main body (1), one side of the adjustment plate (204) is connected to an adjustment rope (207), and the other end of the adjustment rope (207) is connected to the surface of the reeling rod (106).

4. The short-needle endoscopic injection needle according to claim 2, characterized in that: Limiting grooves (102) are provided on the inner walls on both sides of the liquid injection cavity (101), and limiting blocks (104) are provided on both sides of the liquid injection block (103), and the limiting blocks (104) are slidably connected to the limiting grooves (102).

5. The short-needle endoscopic injection needle according to claim 2, characterized in that: Buckle plates (109) are provided on both sides of the main body (1), and the buckle plates (109) are located on the side of the main body (1) facing the push rod (105).

6. The short-needle endoscopic injection needle according to claim 3, characterized in that: The winding rod (106) is slidably connected to a positioning block (107); the main body (1) is provided with a positioning slot (108) on one side of the winding rod (106); and the positioning block (107) and the positioning slot (108) are mutually engaged and connected.

7. The short-needle endoscopic injection needle according to claim 3, characterized in that: The surface of the winding rod (106) is provided with a plurality of anti-skid grooves, and the plurality of anti-skid grooves are evenly spaced and arranged.

8. The short-needle endoscopic injection needle according to claim 3, characterized in that: The ends of the plurality of support rods (205) are mutually provided with connecting blocks (206), and the connecting blocks (206) are made of rubber material.

9. The short-needle endoscopic injection needle according to claim 1, characterized in that: A plurality of protective rollers (209) are provided on a side of the injection head (201) close to the injection needle (202), and the plurality of protective rollers (209) are equidistantly distributed along the circumference of the injection head (201).

10. The short-needle endoscopic injection needle according to claim 1, characterized in that: A supporting mesh cover (208) is provided inside the liquid injection pipe (2), and the supporting mesh cover (208) is made of interwoven metal materials.

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