Injection device for anorectal vaginal coupling agent
The anorectal-vaginal coupling agent injection device designed in the patent uses a needle and infusion tube structure to solve the problems of uneven distribution of coupling agent and difficulty in manual squeezing, and realizes the uniform distribution and deep injection of coupling agent in the anorectum or vagina.
Patent Information
- Application Number
- CN202520243771.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-17
AI Technical Summary
In the existing technology, the coupling agent is difficult to distribute evenly in the rectum or vagina, and it is difficult to inject by hand. The small aperture at the tip of the bottle nozzle makes it difficult to squeeze out the coupling agent completely.
A device for injecting anorectal-vaginal coupling agent has been designed, including a needle and an infusion tube. The diameter of the needle is larger than that of the infusion tube. The side wall of the infusion tube is provided with multiple coupling agent release holes. After the coupling agent is pushed into the infusion tube through the needle, the coupling agent is evenly distributed through the release holes.
It achieves uniform distribution of the coupling agent in the rectum or vagina, avoids the need for manual squeezing, improves the depth and uniformity of the coupling agent, and reduces residue.
Smart Images
Figure CN223627942U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical equipment, and more particularly to an injection device for an anorectal and vaginal coupling agent. BACKGROUND
[0002] In the past, the bottle nozzle of the coupling agent tip is directly inserted into the anorectum or vagina in the ultrasonic department, and the shortcomings are as follows: first, the bottle nozzle is very sharp and short, and the coupling agent can only be squeezed out from the sharp part of the bottle nozzle, which is difficult to be evenly distributed in the anorectum or vagina, and cannot reach a sufficient depth; second, the whole bottle of coupling agent is injected by hand, the aperture of the sharp end of the bottle nozzle is small, it is difficult to squeeze out, and it is difficult to completely squeeze out the coupling agent, and the bottle bottom and the bottle nozzle connecting bottle body restrict the complete squeezing out of the coupling agent. CONTENT OF THE UTILITY MODEL
[0003] The present application is provided to solve the above-mentioned defects in the prior art. A injection device for an anorectal and vaginal coupling agent is needed, which can avoid the hand squeezing method, can reach a sufficient depth, and can be evenly distributed.
[0004] According to a first aspect of the present application, a injection device for an anorectal and vaginal coupling agent is provided, the injection device comprising a needle tube and a infusion tube, the diameter of the needle tube being greater than the diameter of the infusion tube, the first end of the infusion tube being open, the first end of the infusion tube and the outlet of the needle tube being connected, so that the coupling agent in the needle tube enters the infusion tube, the port of the second end of the infusion tube being closed, and a plurality of coupling agent release holes being provided on the side wall of the infusion tube, so that the coupling agent flows out from the coupling agent release holes.
[0005] In some embodiments, the plurality of coupling agent release holes on the side wall of the infusion tube are arranged at intervals along the extension direction of the infusion tube.
[0006] In some embodiments, part of the plurality of coupling agent release holes are distributed at intervals in the circumferential direction of the infusion tube.
[0007] In some embodiments, the length of the infusion tube is 8-10 cm.
[0008] In some embodiments, the diameter of the coupling agent release hole is 5-8 mm.
[0009] In some embodiments, the coupling agent release hole is inclined on the wall of the infusion tube, and the included angle between the inclined direction and the injection direction of the needle tube is an acute angle.
[0010] In some embodiments, the needle tube comprises a needle cylinder and a piston rod, the end of the piston rod matched with the needle cylinder is provided with a packing, and the packing is located in the needle cylinder.
[0011] In some embodiments, the outlet end of the needle cylinder is provided with an outlet, the outer side of the outlet end of the needle cylinder is provided with a matching cap corresponding to the outlet, and the infusion tube is connected to the matching cap.
[0012] In some embodiments, the end of the piston rod is provided with a booster rod, the booster rod is perpendicular to the gasket, and when the piston rod is pushed, the booster rod extends into the infusion tube through the outlet of the needle cylinder.
[0013] In some embodiments, the outer wall of the booster rod is provided with a spiral blade, and when the booster rod enters the infusion tube, the spiral blade is in contact with the inner tube wall of the infusion tube.
[0014] In some embodiments, the inside of the piston rod is provided with a booster channel, the booster rod is partially located in the booster channel, the end of the booster rod is provided with a protrusion, the sidewall of the piston rod is provided with a slot, the protrusion extends out of the piston rod through the slot, and the booster rod can be moved along the axial direction of the piston rod by pushing the protrusion.
[0015] The injection device for anorectal vaginal coupling agent provided by various embodiments of the present application includes a needle cylinder and an infusion tube, the needle cylinder can conveniently inject the coupling agent to avoid using the hand squeezing method to inject the coupling agent, and the infusion tube is provided with a plurality of coupling agent release holes, after the coupling agent is injected into the infusion tube, the coupling agent is discharged to the outside through the coupling agent release holes to uniformly apply the coupling agent to the anorectal vagina. BRIEF DESCRIPTION OF DRAWINGS
[0016] In the drawings, which are not necessarily drawn to scale, like numerals can describe similar components in different views. Like numerals having different letter suffixes can represent different instances of similar components. The drawings illustrate generally, by way of example, various embodiments of the application and are not intended to limit the application. The same reference numerals in different drawings can identify the same or similar elements. Such embodiments of the inventive subject matter can be employed without departing from the spirit of the application, the scope intended being defined by the claims appended hereto.
[0017] Figure 1 FIG. 1 shows a schematic diagram of the overall structure of an injection device for anorectal vaginal coupling agent according to an embodiment of the present application;
[0018] Figure 2 FIG. 2 shows a schematic diagram of the cross-sectional structure of a needle cylinder according to an embodiment of the present application;
[0019] Figure 3 FIG. 3 shows a schematic diagram of the structure of a piston rod of an injection device according to an embodiment of the present application;
[0020] Figure 4 A schematic diagram of the connection between the booster rod and the piston rod according to an embodiment of this application is shown.
[0021] Figure label:
[0022] 1-Needle; 2-Infusion tube; 3-Coupled agent release hole; 4-Piston rod; 5-Sealing gasket; 6-Push rod; 7-Force pad; 8-Helical blade; 9-Protrusion. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solutions of this application, the application will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments of this application will be further described in detail below with reference to the accompanying drawings and specific examples, but these are not intended to limit the scope of this application.
[0024] The terms “first,” “second,” and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used for distinction. Terms such as “including” or “comprising” mean that the element preceding the term covers the element listed after the term, and do not exclude the possibility of covering other elements as well.
[0025] like Figure 1 and Figure 2 As shown, an embodiment of this application provides an injection device for anorectal coupling agent. The injection device includes a needle tube 1 and an infusion tube 2. The diameter of the needle tube 1 is larger than the diameter of the infusion tube 2. The first end of the infusion tube 2 is open and connected to the outlet of the needle tube 1 so that the coupling agent in the needle tube 1 enters the infusion tube 2. The port of the second end of the infusion tube 2 is closed, and a plurality of coupling agent release holes 3 are provided on the side wall of the infusion tube 2 so that the coupling agent flows out from the coupling agent release holes 3.
[0026] The outlets of the infusion tube 2 and the needle tube 1 are connected to form a flow channel from the needle tube 1 to the infusion tube 2. The side wall of the infusion tube 2 is provided with a coupling agent release hole 3, which can facilitate the distribution of the coupling agent to different locations in the anus or vagina and improve uniformity.
[0027] Coupling agent can be pre-placed in the needle tube 1. In some embodiments, the diameter of the needle tube 1 is 2-3 times the diameter of the infusion tube 2. In this way, the coupling agent in the needle tube 1 enters the thinner infusion tube 2 under pressure, and its fluidity is enhanced, so that it can flow out better from the coupling agent release hole 3 of the infusion tube 2.
[0028] In some embodiments, a plurality of coupling agent release holes 3 on the sidewall of the infusion tube 2 are arranged at intervals along the extension direction of the infusion tube 2. This allows the coupling agent to be distributed in deeper, middle, and shallower positions after flowing out from the coupling agent release holes 3, improving the uniformity of distribution.
[0029] In some embodiments, some of the plurality of coupling agent release holes 3 are spaced apart in the circumferential direction of the infusion tube 2. Further, three or four coupling agent release holes 3 are arranged at intervals in the circumferential direction at the middle and both ends.
[0030] In some embodiments, the coupling agent release hole 3 can be a round hole or an elongated hole, etc.
[0031] like Figure 2 As shown, in some embodiments, the coupling agent release hole 3 is inclined on the wall of the infusion tube, and the angle between the inclined direction and the injection direction of the needle tube 1 is an acute angle. This is more conducive to the outflow of coupling agent.
[0032] In some embodiments, the length of the infusion tube 2 is 8-10 cm. The length of the infusion tube 2 can be set as needed.
[0033] In some embodiments, the diameter of the coupling agent release hole 3 is 5-8 mm. This facilitates better release of the coupling agent from the coupling agent release hole 3 and reduces coupling agent residue in the infusion tube 2.
[0034] In some embodiments, the outer surface of the closed end of the infusion tube 2 is an arc-shaped surface. This facilitates entry and exit and reaches the bottom of the cavity, and also reduces the risk of damaging the cavity.
[0035] In some embodiments, the syringe 1 includes a syringe barrel and a piston rod 4. A sealing gasket 5 is provided at the end of the piston rod 4 that mates with the syringe barrel, and the sealing gasket 5 is located inside the syringe barrel. The syringe barrel contains the coupling agent. When the piston rod 4 is pushed, the sealing gasket 5 squeezes the coupling agent inside the syringe barrel, allowing the coupling agent to enter the infusion tubing 2.
[0036] In some embodiments, the syringe has an outlet at its outlet end, and a corresponding fitting cap is provided on the outer side of the syringe outlet end, with the infusion tube 2 connected to the fitting cap. Further, the infusion tube 2 and the fitting cap are connected by threads to improve the connection stability and sealing of the infusion tube 2 and the syringe. For example, the fitting cap can be a sleeve-type structure, located at the outlet position of the syringe, with external threads on the fitting cap and internal threads on the infusion tube 2, and the infusion tube 2 and the fitting cap are connected by threads.
[0037] Furthermore, it may also include a fitting cap gasket so that when the infusion tubing 2 is removed, the fitting cap gasket covers the fitting cap, keeping the inside of the syringe 1 clean.
[0038] like Figure 2 As shown, in some embodiments, the piston rod 4 has a booster rod 6 at its end. The booster rod 6 is perpendicular to the sealing gasket 5. When the piston rod 4 is pushed, the booster rod 6 extends into the infusion tube 2 through the syringe outlet. The diameter of the booster rod 6 is smaller than the diameter of the infusion tube 2; more specifically, the diameter of the booster rod 6 is half the diameter of the infusion tube 2. This is to avoid affecting the entry of the coupling agent into the infusion tube 2 and to better expel the coupling agent in the infusion tube 2 to the outside of the infusion tube 2.
[0039] like Figure 3 As shown, in some embodiments, the outer wall of the booster rod 6 is provided with helical blades 8. When the booster rod 6 enters the infusion tube 2, the helical blades 8 make contact with the inner wall of the infusion tube 2. During the forward or backward movement of the helical blades 8, the coupling agent on the inner wall of the infusion tube 2 on both sides of the booster rod 6 can be piled up and pushed out, thus better pushing out the coupling agent in the infusion tube 2 and reducing residue.
[0040] In some embodiments, the booster rod 6 may be made of a soft material such as rubber or silicone, or it may be made of plastic.
[0041] In some embodiments, the piston rod has an internal booster channel, and the booster rod 6 is partially located within the booster channel. The end of the booster rod 6 has a protrusion 9, and the side wall of the piston rod has a slot. The protrusion 9 extends out of the piston rod through the slot. By pushing the protrusion 9, the booster rod 6 can move along the axial direction of the piston rod 4. By repeatedly pushing and pulling the piston rod, the booster rod 6 can be controlled to repeatedly push the coupling agent, thereby reducing the amount of coupling agent remaining at the end. It also eliminates the need to pull the piston rod back, preventing the squeezed-out coupling agent from being drawn back into the infusion tube 2 when the piston rod is pulled back.
[0042] In some embodiments, the piston rod 4 is provided with a force-bearing pad 7 at the injection end. The force-bearing pad 7 and the piston rod form a spindle shape. Since the bottle body is relatively thick, the force is relatively large during infusion. Therefore, the injection is pushed by hand. The handle is designed in a spindle shape. During use, it is installed on the injection sealing pad 5 through a connecting rod. The base of the bottle body is used as the force point. The palm is used to push the coupling agent into the cavity.
[0043] In some embodiments, the infusion tube 2 may be made of silicone. In some embodiments, the syringe may have a volume of 50ml, 100ml, etc., and the syringe may be made of plastic such as polyethylene.
[0044] Furthermore, although example embodiments have been described herein, the scope of coverage of this patent document extends to any and all modifications, combinations (e.g., of various embodiments), adaptations or equivalents of embodiments that were described above or that occur to persons skilled in the art upon reading the foregoing description. The embodiments described herein are not intended to be exhaustive or limiting of the claimed application. Although specific embodiments of the application have been described above, various modifications can be made to the described embodiments without departing from the scope of the claimed application. Accordingly, the claims are not intended to be limited to the described embodiments, but are to be accorded the widest scope consistent with the principles and features disclosed herein.
[0045] The above description is intended to be illustrative, and not restrictive. For example, the above-described examples (or one or more aspects thereof) can be used in combination with each other. Other embodiments will be apparent to those of ordinary skill in the art upon reading the above description. Further, in the detailed description, various features are grouped together in one or more embodiments for the purpose of streamlining the disclosure. This should not be interpreted as a requirement that the claimed application necessarily has more features than are explicitly described; rather, the claimed application can have fewer than all features described. The scope of the claimed application is not to be determined by the contents of the specific disclosure, but only by the claims and their equivalents. The above description is intended to be illustrative, and not restrictive. For example, the above-described examples (or one or more aspects thereof) can be used in combination with each other. Other embodiments will be apparent to those of ordinary skill in the art upon reading the above description. Further, in the detailed description, various features are grouped together in one or more embodiments for the purpose of streamlining the disclosure. This should not be interpreted as a requirement that the claimed application necessarily has more features than are explicitly described; rather, the claimed application can have fewer than all features described. The scope of the claimed application is not to be determined by the contents of the specific disclosure, but only by the claims and their equivalents.
[0046] The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application. The scope of the protection of the present application is defined by the claims. Various modifications or equivalent replacements to the present application can be made by those skilled in the art within the spirit and protection scope of the present application, and such modifications or equivalent replacements should also be considered to fall within the protection scope of the present application.
Claims
1. An injection device for an anorectal vaginal coupling agent, characterized in that, The injection device comprises a needle tube and an infusion tube, the diameter of the needle tube is larger than that of the infusion tube, the first end of the infusion tube is open, the first end of the infusion tube is connected with the outlet of the needle tube so that the coupling agent in the needle tube enters the infusion tube, the port of the second end of the infusion tube is closed, and a plurality of coupling agent release holes are arranged on the side wall of the infusion tube to make the coupling agent flow out from the coupling agent release holes.
2. Injection device according to claim 1, characterized in that The plurality of coupling agent release holes on the side wall of the infusion tube are arranged at intervals along the extension direction of the infusion tube.
3. The injection device of claim 1, wherein, Part of the plurality of coupling agent release holes are distributed at intervals in the circumferential direction of the infusion tube.
4. The injection device of claim 1, wherein, The length of the infusion tube is 8-10 cm.
5. The injection device of claim 1, wherein, The coupling agent release holes are arranged obliquely on the tube wall of the infusion tube, and the included angle between the oblique direction and the injection direction of the needle tube is an acute angle.
6. The injection device of claim 1, wherein, The diameter of the coupling agent release hole is 5-8 mm.
7. The injection device of claim 1, wherein, The needle tube comprises a needle cylinder and a piston rod, the end of the piston rod matched with the needle cylinder is provided with a gasket, and the gasket is located in the needle cylinder.
8. Injection device according to claim 7, characterized in that The end of the piston rod is provided with a boost rod, the boost rod is perpendicular to the gasket, and when the piston rod is pushed, the boost rod extends into the infusion tube through the outlet of the needle cylinder.
9. Injection device according to claim 8, characterized in that The outer side wall of the boost rod is provided with a spiral blade, and when the boost rod enters the infusion tube, the spiral blade is in matched contact with the inner tube wall of the infusion tube.
10. The injection device of claim 8, wherein, The inside of the piston rod is provided with a boost channel, the boost rod is partially located in the boost channel, the end of the boost rod is provided with a protrusion, the side wall of the piston rod is provided with a slot, the protrusion extends out of the piston rod through the slot, and by pushing the protrusion, the boost rod can be moved along the axial direction of the piston rod.