CN220833114U

CN220833114U - Disposable endoscope injection needle

Info

Publication number: CN220833114U
Application number: CN202322098263.8U
Authority: CN
Inventors: 印建新; 陈润生; 陈林锋
Original assignee: Jiangsu Zhenyoumei Biotechnology Co ltd
Current assignee: Jiangsu Zhenyoumei Biotechnology Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-04-26
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a disposable injection needle for an endoscope, which comprises a boosting pipe and a protective sleeve arranged at the left end of the boosting pipe, wherein an outer pipe is arranged at the left end of the protective sleeve, a needle head is arranged at the end part of the outer pipe, a protective cylinder cover is arranged on the surface of the end part of the outer pipe in a sliding manner, the needle head is positioned at the inner side of the protective cylinder cover, and a limiting structure is arranged between the outer pipe and the protective cylinder cover; according to the utility model, the disposable endoscope injection needle in the prior art is improved and optimized, the slidable protective cylinder cover is designed at the end part of the outer tube, and the corresponding limiting structure and sliding structure are designed, so that the protective cylinder cover can wrap the needle head on the inner side when the endoscope injection needle is carried and transported, an effective protective effect is achieved, and when the endoscope injection needle is required to be used normally in the follow-up process, the protective cylinder cover is only required to be pushed down and then slid backwards, so that the needle head is completely exposed, and the use convenience is high.

Description

Disposable endoscope injection needle

Technical Field

The utility model belongs to the technical field of endoscope injection needles, and particularly relates to a disposable injection needle for an endoscope.

Background

The disposable endoscope injection needle is used in cooperation with endoscope, and is used in submucosal injection in digestive tract, and is characterized by that when in use, the syringe filled with medicine liquid is connected with conical joint of rear handle, the syringe piston is pushed to discharge air in the inner tube until the medicine liquid is seen to flow out from needle point, and the medicine liquid is confirmed not to be exposed from place except needle point, the instrument is inserted into forceps channel hole of endoscope until the medicine liquid is appeared in the field of view of endoscope, then the proper injection position is selected, the needle is pricked into target tissue, the syringe piston is pushed to make injection operation, after the injection is completed, said disposable endoscope injection needle is mainly formed from needle, transfusion inner tube, outer tube, protecting tube, boosting tube, front handle and liquid injection handle.

However, when the disposable endoscope injection needle in the prior art is transported and carried, the needle head is exposed outside for a long time due to no design of a structure for protecting and shielding the needle head, so that unnecessary damage is easily caused to the outside things, certain defects exist, the portability of the whole disposable endoscope injection needle is reduced, and the improvement and optimization of the conventional disposable endoscope injection needle are needed to solve the problem.

Disclosure of utility model

The utility model aims to provide a single-use endoscope injection needle, which solves the problem that the prior single-use endoscope injection needle proposed in the background technology is not easy to carry.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a disposable syringe needle for endoscope, includes the booster tube and sets up the sheath pipe in the booster tube left end, the left end of sheath pipe is provided with the outer tube, the syringe needle is installed to the tip of outer tube, the tip surface slip of outer tube is provided with the protection barrel casing, the syringe needle is located the inboard of protection barrel casing, be provided with limit structure between outer tube and the protection barrel casing, limit structure is including seting up the sliding tray in the outer tube inside, be provided with in the sliding tray and press slider and spring, side spout has been seted up to one side inner wall of sliding tray, be provided with the side slider in the side spout, the one end of side slider is fixed with pressing the slider mutually, the top of side slider is fixed with spacing expansion block, the spacing draw-in groove corresponding with spacing expansion block is seted up to the inner wall of protection barrel casing, the tip of spacing expansion block runs through to in the spacing draw-in groove.

Preferably, a bottom slot is formed in the bottom surface of the pressing sliding block, the top end of the spring is inserted into the bottom slot, a through hole communicated with the outer side surface of the outer tube is formed in the inner wall of the top end of the side sliding groove, and the through hole corresponds to the limiting telescopic block.

Preferably, the sliding structure is further arranged between the protective cylinder cover and the outer tube, the sliding structure comprises a guide sliding block and a guide sliding groove, the inner wall of the protective cylinder cover is provided with two integrated guide sliding blocks, the two guide sliding grooves are formed in the surface of the outer tube, the guide sliding blocks are slidably positioned in the guide sliding grooves, the sliding structure further comprises a silica gel seat, a circular positioning protrusion and a circular groove, the two ends of the guide sliding groove are embedded and provided with the silica gel seat, the surface of the silica gel seat is provided with the circular positioning protrusion, the surface of the guide sliding block is provided with the circular groove, the circular positioning protrusion on the surface of one silica gel seat is embedded into the circular groove, the silica gel seat and the circular positioning protrusion are of an integrated structure, and the deformation cavity is formed in the silica gel seat.

Preferably, an infusion inner tube is arranged on the inner side of the outer tube, the front end of the infusion inner tube is connected with the needle head, the right end of the boosting tube is provided with a liquid injection handle, and the right end of the liquid injection handle is provided with a conical joint liquid injection port.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the disposable endoscope injection needle in the prior art is improved and optimized, the slidable protective cylinder cover is designed at the end part of the outer tube, and the corresponding limiting structure and sliding structure are designed, so that the protective cylinder cover can wrap the needle head on the inner side when the endoscope injection needle is carried and transported, an effective protective effect is achieved, and when the endoscope injection needle is required to be used normally in the follow-up process, the protective cylinder cover is only required to be pushed down and then slid backwards, so that the needle head is completely exposed, and the use convenience is high.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of a portion of the area A of FIG. 1 in accordance with the present utility model;

FIG. 3 is an enlarged view of a portion of the spacing structure of FIG. 2 in accordance with the present utility model;

FIG. 4 is an enlarged view of a portion of the sliding structure of FIG. 2 in accordance with the present utility model;

In the figure: 1. a boosting pipe; 2. a sheath tube; 3. an outer tube; 4. a needle; 5. a protective cylinder cover; 6. a liquid injection handle; 7. a liquid injection port of the conical joint; 8. an infusion inner tube; 9. a limit structure; 91. a sliding groove; 92. pressing the sliding block; 93. a spring; 94. a side slider; 95. a side chute; 96. limiting the telescopic blocks; 97. a limit clamping groove; 10. a sliding structure; 101. a guide slide block; 102. a guide chute; 103. a silica gel seat; 104. a circular positioning protrusion; 105. circular grooves.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1 to 3, a first embodiment of the present utility model provides a technical solution: the utility model provides a disposable syringe needle for endoscope, including boosting pipe 1 and set up at the sheath pipe 2 of boosting pipe 1 left end, the left end of sheath pipe 2 is provided with outer tube 3, syringe needle 4 is installed to the tip of outer tube 3, the tip surface slip of outer tube 3 is provided with protection cartridge housing 5, syringe needle 4 is located the inboard of protection cartridge housing 5, can wrap up syringe needle 4 inboard, play effectual guard effect, be provided with limit structure 9 between outer tube 3 and the protection cartridge housing 5, limit structure 9 is including seting up at the inside sliding tray 91 of outer tube 3, be provided with in the sliding tray 91 and press slider 92 and spring 93, side chute 95 has been seted up to one side inner wall of sliding tray 91, be provided with side slider 94 in the side chute 95, the one end and the press slider 92 of side slider 94 are fixed mutually, the top of side slider 94 is fixed with spacing expansion block 96, the inner wall of protection cartridge housing 5 has been seted up with spacing draw-in groove 97 corresponding with spacing expansion block 96, the tip of spacing expansion block 96 runs through to spacing draw-in groove 97, realize the stable spacing to protection cartridge housing 5, follow-up to make the protection cartridge housing 5 take off the end of side expansion block 96 and make the tip that just need to make the side expansion block 92 make the tip of side expansion block 94 remove smoothly when the side expansion block 92 to make the syringe needle 5 move out smoothly by the side slider 92, make the tip expansion block 4 to make the end of the syringe needle 4 move down smoothly after the side cap is pressed down, can be made the end to realize the side expansion block 94 is exposed by the end to realize smoothly, and can be moved smoothly by the end after the end is made by the side and can be moved by the side and make the end expansion block is exposed by the end and move.

Wherein, a bottom slot has been seted up to the bottom surface of pressing slider 92, and in the top of spring 93 inserted bottom slot, guaranteed the installation stability of spring 93, the top inner wall of sideslip groove 95 has been seted up with outer tube 3 outside surface communicating through-hole, and the through-hole is corresponding with spacing expansion block 96, supplies spacing expansion block 96 to run through smoothly.

Wherein, the inner side of the outer tube 3 is provided with an infusion inner tube 8, the front end of the infusion inner tube 8 is connected with the needle head 4, the right end of the boosting tube 1 is provided with a liquid injection handle 6, and the right end of the liquid injection handle 6 is provided with a conical joint liquid injection port 7.

Examples

Referring to fig. 1 to 4, a second embodiment of the present utility model is based on the previous embodiment, except that the sliding structure 10 is provided to realize the front-back sliding of the protective cylinder cover 5, and a certain auxiliary limit can be obtained after sliding, so that the limit structure 9 is better convenient for limiting.

Specifically, still be provided with sliding structure 10 between protection barrel casing 5 and the outer tube 3, sliding structure 10 includes guide slide 101 and guide chute 102, the inner wall of protection barrel casing 5 is provided with two integrated guide slide 101, two guide chute 102 corresponding with guide slide 101 have been seted up on the surface of outer tube 3, guide slide 101 slides and is arranged in guide chute 102, make the surface of protection barrel casing 5 can be stable slide around outer tube 3, sliding structure 10 still includes silica gel seat 103, circular location arch 104 and circular recess 105, the silica gel seat 103 is installed in the both ends of guide chute 102 all embedding, the surface of silica gel seat 103 is provided with circular location arch 104, the circular recess 105 corresponding with circular location arch 104 has been seted up on the surface of guide slide 101, the circular location arch 104 on one of them silica gel seat 103 is embedded into circular recess 105, guide slide 101 also can be in guide chute 102 when guide slide 101 slides to the one end of guide chute 102, circular location arch 104 then can be pressed into circular recess 105, play certain auxiliary limit effect, silica gel seat 103 and circular location arch 104 are equipped with the circular structure deformation that makes the silica gel seat and the two is enough to be made to the space deformation when the silica gel seat 103 is equipped with the circular location arch, the cavity deformation.

Although embodiments of the present utility model have been shown and described in detail with reference to the foregoing detailed description, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Disposable syringe needle for scope, including booster tube (1) and set up sheath pipe (2) at booster tube (1) left end, the left end of sheath pipe (2) is provided with outer tube (3), syringe needle (4) are installed to the tip of outer tube (3), its characterized in that: the utility model discloses a safety protection cylinder cover, including outer tube (3), tip surface slip of outer tube (3) is provided with safety protection cylinder cover (5), syringe needle (4) are located the inboard of safety protection cylinder cover (5), be provided with limit structure (9) between outer tube (3) and safety protection cylinder cover (5), limit structure (9) are including seting up at the inside sliding tray (91) of outer tube (3), be provided with in sliding tray (91) and press slider (92) and spring (93), side spout (95) have been seted up to one side inner wall of sliding tray (91), be provided with side slider (94) in side spout (95), the one end of side slider (94) is fixed with pressing slider (92), the top of side slider (94) is fixed with spacing expansion block (96), limit draw-in groove (97) corresponding with spacing expansion block (96) are seted up to the inner wall of safety protection cylinder cover (5), the tip of spacing expansion block (96) runs through to in spacing draw-in groove (97).

2. The single use endoscopic injection needle according to claim 1, wherein: the bottom surface of the pressing sliding block (92) is provided with a bottom slot, and the top end of the spring (93) is inserted into the bottom slot.

3. The single use endoscopic injection needle according to claim 1, wherein: the inner wall of the top end of the sideslip groove (95) is provided with a through hole communicated with the outer side surface of the outer tube (3), and the through hole corresponds to the limiting telescopic block (96).

4. The single use endoscopic injection needle according to claim 1, wherein: the novel protective cylinder cover is characterized in that a sliding structure (10) is further arranged between the protective cylinder cover (5) and the outer tube (3), the sliding structure (10) comprises a guide sliding block (101) and a guide sliding groove (102), two integrated guide sliding blocks (101) are arranged on the inner wall of the protective cylinder cover (5), two guide sliding grooves (102) are formed in the surface of the outer tube (3), and the guide sliding blocks (101) are slidably located in the guide sliding grooves (102).

5. The single use endoscopic injection needle according to claim 4, wherein: the sliding structure (10) further comprises a silica gel seat (103), circular positioning protrusions (104) and circular grooves (105), the silica gel seat (103) is embedded and installed at two ends of the guide sliding groove (102), the circular positioning protrusions (104) are arranged on the surface of the silica gel seat (103), the circular grooves (105) are formed in the surface of the guide sliding block (101), and the circular positioning protrusions (104) on the surface of one silica gel seat (103) are embedded into the circular grooves (105).

6. The single use endoscopic injection needle according to claim 5, wherein: the silica gel seat (103) and the circular positioning bulge (104) are of an integrated structure, and a deformation cavity is formed in the silica gel seat (103).

7. The single use endoscopic injection needle according to claim 1, wherein: an infusion inner tube (8) is arranged on the inner side of the outer tube (3), and the front end of the infusion inner tube (8) is connected with the needle head (4).

8. The single use endoscopic injection needle according to claim 1, wherein: the right-hand member of booster pipe (1) is provided with annotates liquid handle (6), annotate the right-hand member of liquid handle (6) and be provided with conical joint annotate liquid mouth (7).