TWM474527U - Needleless luer access connector module - Google Patents

Description

Needleless connector module

The present invention relates to a needle-free connector module, and more particularly to a needle-free connector module associated with an injection connector, which can be used to enhance the airtightness and rebound effect of the airtight component therein, thereby avoiding air during injection. In the case of intrusion and drug leakage and countercurrent, the structure of the creation can further make the sterilization and disposal effect of the creation after use more practical.

Conventional injection devices are used to inject an injectable product through a needle through a related device such as a syringe and a needle and applying a pushing force by a piston. However, the sharp structure of the used disposable needle has been a dangerous waste for a long time, and if the needle used for injecting the living body has the risk of contact infection and stab wound of the pathogen, the disposal of the needle is It is a very difficult issue, and the needle is a disposable item that must be discarded after use to avoid bacterial malnutrition or other infection problems. In addition to causing public health safety concerns, it also imposes environmental burdens and costs.

In view of the shortcomings of the traditional needle, the needle-free syringe is derived, but the needle-free syringe has poor air tightness, poor leakproof effect, or even easy to cause backflow of the liquid to be injected. Improving the above problems may lead to the need to go through more complex structural configurations to try to improve, but it is more difficult to open molds, and the cost of research and development is soaring, and it may not be able to achieve the desired results.

In addition, in order to achieve good sterility, conventional needle-free syringes often cause If the structure is too closed, and the effect of sterilization is not good, it is easy to cause improper distribution of pathogens and cause serious public health problems. In addition, when using a needle-free syringe, it is often necessary to use other sets of fittings in order to expand the original function of the needle-free injector. However, in the case where the mold opening is not easy and the structure is difficult to fully cooperate, it is necessary to assemble other fittings. There are practical difficulties. In addition to the low yield of the group, it is often difficult to maintain a satisfactory technical level because the sterility after assembly is not easy to maintain. Furthermore, if the needle-free syringe is to maintain a good sterile environment, it will often try to make the structure of the needle-free syringe relatively closed. However, this also causes the needle-free syringe to easily cause sterilization dead angles, resulting in improper distribution of pathogens. The environment and public health security pose a threat.

The reason is that the creator feels that the above-mentioned deficiencies can be improved, and based on years of experience in this field, carefully observe and study, and with the use of academics, propose a design that is reasonable in design and effective in improving the above-mentioned defects. .

The purpose of this creation is to provide a needle-free connector module that achieves good airtightness, leak-proof and aseptic effect through a relatively simple structure, and simplifies mold opening to effectively reduce the cost of research and development and manufacturing. Moreover, it can improve the production yield under the advantage of good expandability of the product, and can also have the advantage of being able to be sterilized while maintaining the internal aseptic environment, which is beneficial to public health safety.

In order to achieve the above object, the present invention provides a needle-free connector module, comprising: a sleeve having a first opening formed at a lower end of the sleeve, a second opening formed at an upper end of the sleeve, and a first inner wall, the first inner wall is retracted toward a direction of an upper end of the sleeve and a direction of a central axis of the longitudinal direction of the sleeve to extend a limiting inclined wall, the limiting inclined wall is further facing the sleeve The upper end direction extends upwardly to a second inner wall, and the limiting inclined wall and the second inner wall define an upper chamber, the first inner wall defines a lower chamber, an elastic valve body, and a valve The inner wall includes a hollow head, a hollow shoulder and a hollow base sequentially from the upper end to the lower end of the elastic valve body, and the upper chamber is used for the upper chamber The hollow head is received, the lower chamber is configured to receive the hollow base, and the hollow base is further retracted from the direction of the hollow head and the central axis direction of the longitudinal direction of the sleeve to extend the hollow shoulder. a top surface of the hollow head is provided with an airtight slit for abutting against a syringe; a flow guiding member comprising: a bottom cover body, the bottom cover body having a conduit, the conduit An outer top surface and an inner bottom surface of the bottom cover body are extended, and the duct protrudes from a side of the inner bottom surface, the duct has a first flow guiding interface, and the duct is disposed on the outer top surface The bottom cover body is further connected to a second through hole, the bottom cover body further has a through hole penetrating the outer top surface and the inner bottom surface; a welded portion on the outer top surface; and a plurality of bottom cover ribs The bottom cover rib is formed on the inner bottom surface; and an extending member having at least one main pipe, the extending member being connected to the outer top surface via the welding portion, so that the main pipe communicates with the second a flow guiding interface, and the extending part is spaced apart from the outer top surface by a gap therebetween Connected to the through hole, wherein the elastic valve body is sleeved on the conduit, and the hollow shoulder abuts against the limiting inclined wall, so that the elastic valve body and the flow guiding member are jointly assembled to the sleeve And the bottom cover body encloses the first opening, wherein, in a first use state, the inner wall of the hollow head is covered by the conduit, so that the first flow guiding interface is hidden In the airtight seam; and in a second state of use, the syringe is pressed down against the top surface, the hollow head is pressed downward, and the first flow guiding interface is exposed to the gas In addition to the seam, the first flow interface can be connected to one of the injection openings of the syringe.

In order to achieve the above object, the present invention also provides a needle-free connector module, comprising: a sleeve having a first opening formed at a lower end of the sleeve and a second opening opened at an upper end of the sleeve And a first inner wall, the first inner wall is retracted to extend between the direction of the upper end of the sleeve and the central axis of the sleeve, and a limiting inclined wall is extended toward the sleeve. The upper end of the cylinder extends upwardly to a second inner wall, and the limiting inclined wall and the second inner wall define an upper chamber, the first inner wall defines a lower chamber, and an elastic valve body has a The inner wall of the valve body comprises a hollow head portion, a hollow shoulder portion and a hollow base portion from the upper end to the lower end of the elastic valve body. a chamber for accommodating the hollow head, the lower chamber for accommodating the hollow base, the hollow base further extending between the direction of the hollow head and the central axis of the longitudinal direction of the sleeve a hollow shoulder, a top surface of the hollow head is provided with an airtight seam for abutting a syringe; and a flow guiding member comprising: a bottom cover body, the bottom cover body having a An upper duct penetrating through an outer top surface and an inner bottom surface of the bottom cover body, and the upper duct protrudes from one side of the inner bottom surface to extend an upper duct, the upper duct having a first guiding flow The bottom cover body further has a through hole penetrating through the outer top surface and the inner bottom surface; and a waist platform formed on the outer wall of the upper duct, so that the lumbar platform and the first flow guiding interface An upper conduit narrow portion is defined, and an upper conduit wide portion is defined between the waist platform and the inner bottom surface; and a plurality of bottom cover ribs are formed on the inner bottom surface, wherein the elastic a valve body is sleeved on the upper conduit, and the hollow shoulder abuts against the limit oblique So that the elastic valve body and the flow guiding member are jointly assembled in the sleeve, and the bottom cover body seals the first opening, wherein, in a first use state, the hollow head is selectively The inner wall of the portion is wrapped around the narrow portion of the upper conduit, so that the first flow guiding interface is hidden in the airtight joint; and in a second use state, the syringe is pressed down against the top surface, Pressing the hollow head downwardly to drive the inner wall of the valve against the lumbar platform, and exposing the first flow guiding interface to the airtight slit, so that the first guiding interface can be connected to the injection One of the barrels is injected into the opening.

Through the above technical content, the creation can effectively achieve the simplification of mold opening and reduce the cost required for the above production and manufacture, and at the same time, while achieving good airtightness, leakproof and aseptic environment effects, it can be ensured The advantages of sterilization are beneficial to public health safety.

In order to further understand the features and technical contents of this creation, please refer to the following detailed description and drawings regarding the creation. However, the drawings are only for reference and explanation, and are not intended to limit the creation.

10‧‧‧ sleeve

1001‧‧‧Depression

101‧‧‧The lower room

102‧‧‧The upper room

11‧‧‧ first opening

12‧‧‧ second opening

13‧‧‧First inner wall

131‧‧‧Limited sloping wall

14‧‧‧Second inner wall

20‧‧‧Flexible valve body

201‧‧‧ valve body wall

21‧‧‧ hollow head

211‧‧‧ top surface

2111‧‧‧ airtight seam

22‧‧‧ hollow neck

23‧‧‧ hollow shoulder

24‧‧‧ hollow base

241‧‧‧ base of the base

2411‧‧‧ side base inner wall

2412‧‧‧Interference in the inner wall

242‧‧‧ Valve body base opening

243‧‧‧Expansion Department

30‧‧‧ deflector

31‧‧‧ bottom cover body

311‧‧‧Outer top

3110‧‧‧welding department

312‧‧‧ inside bottom

3121‧‧‧ bottom ribs

32‧‧‧ catheter

321‧‧‧First flow guiding interface

322‧‧‧Second diversion interface

323‧‧‧Low platform

3231‧‧‧ narrow section of the catheter

3232‧‧‧Tube wide

32'‧‧‧Upper catheter

3231'‧‧‧The narrow section of the upper catheter

3232'‧‧‧Upper tube wide

32"‧‧‧ Down catheter

33‧‧‧ screw joint

40, 40a, 40b, 40c, 40d‧‧‧ extension parts

401d‧‧‧Top cover

41, 41a, 41b, 41c‧‧‧main road

42‧‧‧ screw joint

42b, 42c, 42d‧‧‧ pipelines

43d‧‧‧sterile vents

CA‧‧‧ central axis

H‧‧‧via

P1‧‧‧First squeeze margin space

P2‧‧‧Second extrusion margin space

SP‧‧‧ gap

SY‧‧ s syringe

1A is a top perspective exploded view of the needle-free connector module of the present invention; FIG. 1B is a bottom perspective exploded view of the needle-free connector module of the present invention; FIG. 1C is a needle-free connector module of the present invention. FIG. 1D is a bottom perspective view of the needle-free connector module of the present invention; FIG. 2A is a schematic front cross-sectional view of the needle-free connector module of the present invention; FIG. FIG. 3A is a perspective view showing the connection of the needle-free connector module of the present invention to another extension component; FIG. 3B is a schematic diagram of the needle-free connector module of the present invention. 3C is a perspective view of the extension unit of the present invention; FIG. 3C is a perspective view of the extension unit of the present invention; FIG. 3D is a perspective view of the extension unit of the present invention; 4 is a schematic cross-sectional view of the actuating needle-free connector module before removing the welded portion.

[First Embodiment]

Referring to FIG. 1A , FIG. 1B , FIG. 1C and FIG. 1D , the present invention provides a needle-free connector module comprising: a sleeve 10 , an elastic valve body 20 , a flow guiding member 30 and an extending component 40.

The sleeve 10 has a substantially hollow shape and communicates with both ends. Therefore, the sleeve 10 has a first opening 11 opened at a lower end of the sleeve 10, a second opening 12 opened at an upper end of the sleeve 10, and a first inner portion. Wall 13. The first inner wall 13 is obliquely retracted obliquely toward the direction of the upper end of the sleeve 10 and the longitudinal axis CA direction of the sleeve 10 to extend a limiting inclined wall 131, and the limiting inclined wall 131 is further directed toward the sleeve 10. The direction of the upper end extends upwardly from a second inner wall 14 substantially parallel to the central axis CA, wherein the limiting inclined wall 131 and the second inner wall 14 collectively define an upper chamber 102 at the upper end of the sleeve 10, The first inner wall 13 defines the chamber 101. In addition, a recessed portion 1001 is recessed on the outside of the sleeve 10, which can be conveniently held during use.

The elastic valve body 20 is preferably a rubber member. However, the elastic valve body 20 has a valve body wall 201. The upper end to the lower end of the elastic valve body 20 may include at least one hollow. The head 21, a hollow shoulder 23 and a hollow base 24. The upper chamber 102 of the sleeve 10 can be used to accommodate the hollow head 21, and the lower chamber 101 can be used to accommodate the hollow base 24, the hollow base 24 also facing the hollow head 21 and the sleeve 10 The longitudinal center axis CA direction of the longitudinal direction is retracted obliquely to extend out of the hollow shoulder 23 described above. A top surface 211 of the hollow head 21 defines an airtight slit 2111. The airtight joint 2111 is normally in an airtight state, and when the airtight slit 2111 is opened, the hollow head 21 can be opened thereby, and The inside of the hollow head 21 is communicated with the outside. Therefore, when the top surface 211 is used to abut against a syringe SY, the inside of the elastic valve body 20 can be provided by the expanded airtight slit 2111. The flow guide 30 is in communication with the syringe SY. The flow guiding member 30 further includes at least a bottom cover body 31, a welded portion 3110, a waist platform 323 and a plurality of bottom cover ribs 3121.

The bottom cover body 31 further has a duct 32, and the duct 32 also extends through the outer top surface 311 and the inner bottom surface 312 of the bottom cover body 31, and the duct 32 also protrudes from a side belonging to the inner bottom surface 312. The conduit 32 has a first flow guiding interface 321, and the conduit 32 is also connected to a second flow guiding interface 322 on the side belonging to the outer top surface 311. In addition, the bottom cover body 31 is further provided with a through hole H penetrating through the outer top surface 311 and the inner bottom surface 312.

The welding portion 3110 is located on the outer top surface 311, and the welding portion 3110 can be welded to other external expansion components by ultrasonic welding. The waist platform 323 is formed on the outer wall of the duct 32 in a laterally protruding manner, so that a narrow portion 3231 of the conduit can be defined between the waist platform 323 and the first flow guiding interface 321 , and the waist platform 323 is defined. It also continues to extend along the direction of the central axis CA of the conduit 31 (or may be referred to as the major axis direction), while defining a conduit wide portion 3232 between the inner bottom surface 312.

The bottom cover ribs 3121 are exemplified in this embodiment. Preferably, the bottom cover ribs 3121 are formed on the inner bottom surface 312, and the bottom cover ribs are formed. The inner surface 312 itself can provide a better structural strength, so that when the welding portion 3110 of the outer top surface 311 is ultrasonically welded, the bottom plate defined between the outer top surface 311 and the inner bottom surface 312 can be effectively used. It avoids disintegration, meltdown, and deformation due to the high temperature generated by ultrasonic oscillation, and thus contributes to the manufacturing yield.

The extension member 40 has at least one main pipe 41. The extension member 40 can be connected to the outer top surface 311 via the welding portion 3110, so that the main pipe 41 communicates with the second flow guiding interface 322, and after the welding is completed, the extending member A portion of the periphery of the outer top surface 311 may be spaced apart by a gap SP, and the gap SP may further communicate with the through hole H, so that the high temperature and high pressure vapor can be easily entered into the interior of the sleeve 10 during sterilization. In order to achieve the sterilization treatment of infectious waste (bioharzard). When the elastic valve body 20 is sleeved on the conduit 32 of the flow guiding member 30, the hollow shoulder portion 23 of the elastic valve body 20 also has an oblique angle, so that it can abut the limit oblique wall inside the sleeve 10. 131, and is limited by the limiting inclined wall 131, so that the elastic valve body 20 can be jointly assembled with the flow guiding member 30 in the sleeve 10, and the bottom cover body 31 seals the first opening of the sleeve 10. 11.

According to the structure of the present invention, the present invention can selectively enclose the inner wall of the hollow head 21 in the narrow portion 3231 of the catheter in a first use state, thereby hiding the first flow guiding interface 321 Airtight seam 2111. In addition, in a second state of use, when the syringe SY is pressed down against the top surface 211 of the elastic valve body 20, the hollow head 21 is pressed downward, and the inner wall 201 of the valve body is driven to abut against the waist platform. 323, the first flow guiding interface 321 is then exposed outside the airtight slit 2111, so that the first flow guiding interface 321 can be connected to one of the injection openings of the syringe SY (not shown), so that the needleless connector can be completed. The connection works.

Preferably, the valve body wall 201 further includes a base inner wall 241 formed on the hollow base portion 24. In the second use state, the elastic valve body 20 actually Because it is deformed by the pressure, and the base inner wall 241 can interfere with and interfere with the waist platform 323, the force generated by the interference of the waist platform 323 via the base inner wall 241 when the elastic valve body 20 is pressed down as a whole can be used. In turn, the waist platform 323 generates a reaction force against the base inner wall 241 or the entire elastic valve body 20, so that the top surface 211 of the elastic valve body 20 produces a better back pressure effect on the abutting syringe SY. Conducive to the tightness of the top surface 211 of the elastic valve body 20 when the syringe SY is abutted, thereby providing a good leakproof and airtight effect, and when the syringe SY is removed, the elastic valve body 20 is also The reaction force provided by the lumbar platform 323 results in better recovery after compression deformation, which may be beneficial to the extension of the life of the present invention, and also positively affects the stability of the syringe SY during use.

Further, the base inner wall 241 further includes a side base inner wall 2411 and an interference inner wall 2412 formed at an end of the side base inner wall 2411 near the hollow shoulder 23 toward the longitudinal axis CA of the sleeve 10. The inner wall 2412 is narrowed inwardly, so that in the second use state, the interference inner wall 2412 can more reliably reinforce the interference with the lumbar platform 323, so that the reaction force generated by the lumbar platform 323 against the inner wall 2412 can Further, the elastic valve body 20 produces a better back pressure effect on the syringe SY. In addition to the above-described back pressure effect of the elastic valve body 20 by the structural characteristics of the lumbar platform 323, the elastic valve body 20 of the present invention is also adjacent to a portion of the hollow base portion 24 of the bottom cover body 31 with respect to The central axis CA of the sleeve 10 expands outwardly to extend an expansion portion 243, so that the present invention can be reinforced against the inner wall of the sleeve 10 via the expansion portion 243 in the second use state, which also helps to strengthen The effect of back pressure.

Moreover, preferably, in order to prevent the elastic valve body 20 from being pressed, it is difficult to be pressed into the sleeve 10 due to excessive interference of the lumbar platform 323, so the present invention is in the first use state described above. A first compression margin space P1 may be defined by the interference inner wall 2412, a portion of the side base inner wall 2411, the waist platform 323 and the conduit narrow portion 321 in the hollow base 24 to adjust the valve body wall 201. The overall contact area of the catheter narrow portion 3231, the catheter wide portion 3232, and the lumbar platform 323 as a whole is adjusted to adjust the required force when the elastic valve body 20 is pressed into the sleeve 10. Other than that, Preferably, the surface of the valve body wall 201 of the elastic valve body 20 is further formed with a rough bite structure (not shown), which is a particle formed on the surface by sandblasting. The microstructure of the depression, the rough bite structure of the surface, because of the uneven relationship, the contact area between the treated surface and other components is reduced, thereby reducing the friction, especially the micro The structure is formed on the inner wall of the hollow head portion 21, so that when the elastic valve body 20 is pressed down, the first flow guiding interface 321 of the duct 32 can be made more difficult to rub against the inner wall of the hollow head portion 21, in other words, the first The flow guiding interface 321 will thus more easily pass through the airtight slit 2111, and the airtight slit 2111 is exposed in the second use state, and when the syringe SY is removed and returned to the first use state, The friction between the inner wall of the hollow head 21 and the conduit 10 is reduced, allowing the hollow head 21 to more reliably recover deformation and re-coating the first flow guiding interface 321 to avoid potential improper pathogens or other microorganisms as much as possible. First guide The stream interface 321 causes contamination. Similarly, the present invention can also perform sand blasting on the outer wall of the elastic valve body 20, so that the elastic valve body 20 can reduce the friction of the elastic valve body 20 against the sleeve 10 during use, so that the elastic valve body 20 can be The deformation is smoothly generated or restored in the sleeve 10. After the surface blasting treatment, the existing stress on the surface of the elastic valve body 20 itself is also reduced. In this case, the elastic valve body 20 itself is more likely to be deformed and deformed when it is not blasted, and both are easy to recover. Helps the elastic valve body 20 to operate during use. In contrast to the surface blasting treatment, in order to reduce the frictional force on the deformation and actuation of the elastic valve body 20, the elastic valve body 20 of the present invention or the conduit 32 of the flow guiding member 30 can also be coated with oil. It is achieved that after coating the eucalyptus oil, at least one oil layer (not shown) may be formed between the elastic valve body 20 or the conduit 32 of the flow guiding member 30 to reduce the friction between the two components, so that the elastic valve body 20 is Between the first use state and the second use state, deformation is apt to occur and deformation is easily restored. The deformation of the elastic valve body 20 is restored, in other words, the first flow guiding interface 321 can be completely covered in the first use state, so as to eliminate the risk of potential pathogens and microorganisms, thereby contributing to the improvement. Maintenance of the sterile environment of this creation.

In addition, it is worth noting that the bottom cover rib 3121 is formed on the inner bottom surface 312 via a convex manner, so that a support structure having a relatively high height with respect to the inner bottom surface 312 can be formed, and the elastic valve body 20 is hollow. The base portion 24 has an outer edge of the valve body base opening 242 near the end of the bottom cover body 31. Therefore, when the elastic valve body 20 is sleeved on the flow guiding member 30, the outer edge of the valve body base opening 242 is not directly offset. Contacting the inner abutment surface 312, but abutting against the upper end of the bottom cover rib 3121, so that the elastic valve body 20 can be raised by the bottom cover rib 3121, thereby allowing the elastic valve body 20 to be slightly away from the through hole H to avoid The through hole H is sealed by the elastic valve body 20 during the sterilization process, because the elastic valve body 20 itself is heated and expanded, so that if the elastic valve body 20 is not raised, the through hole H will be sealed. Since the situation is extremely likely to occur, it is easy to cause a blind spot that cannot be sterilized, so it is necessary to appropriately raise the elastic valve body 20. Further, when the elastic valve body 20 is raised, the vapor for sterilization can be more easily entered between the elastic valve body 20 and the conduit 32 from below the elastic valve body 20, and the generation of sterilization dead angle can be further prevented.

The hollow head portion 21 and the hollow shoulder portion 23 of the present flexible valve body 20 may further include a hollow neck portion 22, and the outer wall of the hollow neck portion 22 may be laterally opposed to the hollow head portion 21 and the hollow shoulder portion 23. The direction of the central axis CA of the sleeve 10 is retracted, so that the hollow neck 22 can define a second squeezing margin space P2 together with the inner wall of the upper chamber 102 of the sleeve 10, the second squeezing margin The space P2 allows the syringe SY to provide sufficient margin space when it comes into contact with the top surface 211 of the elastic valve body 20 to allow the hollow head 21 of the upper chamber 102 to be smoothly simultaneously by the syringe SY and the catheter The squeezing is expanded to further allow the first flow guiding interface 321 to be smoothly exposed from the airtight slit 2111 and connected to the syringe SY.

Referring to FIG. 1A, FIG. 1B, FIG. 1C, FIG. 1D, FIG. 2A and FIG. 2B, the extension member 40 of the present invention can be modified in various ways, one of which is a screw-type extension component (not shown). Therefore, in addition to the main line 41, a screwing portion 42 can be looped around the main line 41. The main line 41 can be connected to other users in accordance with the needs of the user (or patient) in the case of the screwing portion 42. External pipe fittings (figure) or capacity (illustration omitted) and so on. Referring to FIG. 3A, there is another variation of the extension member 40a, which is a plug-in extension member (not shown), and a plug-in portion is provided in the main line 41a of the plug-in extension member. The main line 41a can be inserted into the outer tube only through its internal plug portion. The preferred form of the plug portion in the present embodiment is that the main line 41a is closer to the second guide. The diameter of one end of the flow interface (not shown) may be extended in a direction away from the end of the second flow guiding interface (not shown) so that the main line 41a is closer to the end of the second flow guiding interface. Forming a relatively narrow insertion portion, but not limited thereto, in fact, as long as there is a difference in pipe diameter between the outer pipe member and the main pipe 41a and can be inserted and fixed interferingly with each other, it can be closely matched with the main pipe 41a. Plug-in relationship. Similarly, as shown in FIG. 3B and FIG. 3C , respectively, a Y-shaped extension member and a T-shaped extension member respectively have a main line 41b and a main line 41c, and are in the main line (41b, 41c). The middle portion is also respectively provided with a plug portion (not shown), and the plug portion functions similarly to the plug portion of FIG. 3A, and can be inserted into other external pipe members or containers, and is located in the main pipe (41b, 41c). The portion between the plug portion and the end adjacent to the second flow guiding interface (not shown) may also bypass the primary line (42b, 42c), wherein the secondary line 42b differs from the secondary line 42c in that The line 42b and the main line 41b have a Y-shaped structure, and the sub-pipe 42c has a T-shaped structure perpendicular to the main line 41c. Therefore, it is more necessary to be added to the secondary line (42b, 42c). Change or adjust the required injected medicine, etc.

Referring to FIG. 3D, the exemplary extension member 40d includes a top cover portion 401d in addition to the main line 41d. The main line 41d is opened on the top cover portion 401d, and the top cover portion 401d is also provided with a primary tube. a 42d and a sterile vent 43d, thereby forming an upper cover extension member, and used as a top cover that can be covered on a buffer cylinder (not shown), the buffer cylinder can be used to retain the liquid medicine from the drip bag, and Connected to the body of a patient through a connecting component, wherein the main line 41d can be welded to the welded portion (slightly omitted) of the outer top surface (not shown) of the bottom cover body 31 to communicate with the flow guiding member 30. The second flow guiding interface (not shown), the secondary line 42d can be used to communicate with a drop of medicine bag. A sterile filter can also be placed in the sterile vent 43d (Fig. Slightly, abbreviated as follows, so that the sterile vent 43d maintains the air pressure balance inside and outside the buffer cylinder and buffers the sterility inside the cylinder. Therefore, through the creation of the upper cover type extension member, other required medicines can be added as needed through the main line during the drip injection. Of course, for the convenience of sterilization, there is still a gap (not shown) between the bottom of the bottom cover body 31 of the present invention and the top cover portion 401d, so that the sterilizable high temperature and high pressure vapor can further pass through the through hole (for example). The via hole H) of FIG. 1B enters the inside of the sleeve 10 for sterilization.

[Second embodiment]

In the second embodiment, the cutting is performed on the basis of the first embodiment, wherein, as shown in Fig. 2A, the waist platform 323 of the duct 32 can be eliminated in the present example, so that the outer wall of the duct 32 is formed without a convex rod shape, and the duct 32 is further thickened by the first flow guiding interface 321 toward the second air guiding interface 322 (the above change is omitted), so that the gradually thickening shape can still be generated as the first The waist platform 323 of the embodiment promotes the effect of the elastic valve body 20 being pressed back on the syringe SY, and since the waist platform 323 is eliminated, the first squeezing margin space P1 is also absent, so further, In the first use state, the inner wall of the hollow head 21 shown in FIG. 2A still covers the narrow portion 3231 of the conduit, so that the first flow guiding interface 321 is hidden in the airtight slit 2111; In the state, please refer to the syringe SY shown in FIG. 2B to press down against the top surface 211, so that the hollow head 21 is pressed downward, but since the waist platform 323 can be canceled, the valve body wall 241 is not driven to interfere. On the lumbar platform 323, however, the inner wall 241 of the valve still interferes with the A guide tube 321 is gradually thickened toward the second flow guiding interface 322 (not shown), and the first flow guiding interface 321 is exposed outside the airtight slit 2111, so that the first guiding interface The 321 can be connected to one of the injection openings of the syringe SY (not shown). For the other technical content and structural relationship related to the waist platform 323 in this embodiment, reference may be made to the analogy of the foregoing first embodiment, and details are not described herein again.

[Third embodiment]

The present invention also provides a needle-free connector module, which is based on the first embodiment. In the embodiment, the sleeve 10 and the elastic valve body 20 are substantially identical to the first embodiment, and will not be described again. However, in this embodiment, please refer to FIG. 1B, FIG. 2A and FIG. The fuse portion 3110 on the flow guiding member 30 is removed. Therefore, as shown in FIG. 4, in the embodiment, the flow guiding member 30 includes: a bottom cover body 31, a waist platform 323, and a number. The bottom cover body 3121. The bottom cover body 31 has an upper duct 32'. The upper duct 32' extends through an outer top surface 311 and an inner bottom surface 312 of the bottom cover body 31, and the upper duct 32' is from the inner bottom surface 312. The side ducts are extended. The upper duct 32' has a first air guiding interface 321 , and the bottom cover body 31 is further provided with a through hole H extending through the outer top surface 311 and the inner bottom surface 312.

The lumbar platform 323 is formed on an outer wall of the upper duct 32' such that an upper duct narrow portion 3231' is defined between the lumbar platform 323 and the first flow guiding interface 321, and between the lumbar platform 323 and the inner bottom surface 312 An upper catheter wide portion 3232' is defined. The bottom cover ribs 3121 are formed on the inner bottom surface 312, wherein the elastic valve body 20 is sleeved on the upper duct 32', and the hollow shoulder portion 23 abuts against the limit inclined wall 131, so that the elastic valve body 20 Together with the flow guiding member 30, it is assembled in the sleeve 10, and the bottom cover body 31 seals the first opening of the lower end of the sleeve 10 (not shown), wherein the creation can be selectively used in a first use state. The inner wall of the hollow head 21 is wrapped around the narrow portion 3231' of the upper conduit, so that the first flow guiding interface 321 is hidden in the airtight slit 2111; or the second cylinder can be used in the second use state as shown in FIG. 2B. Similarly, the lower pressing abuts against the top surface 211 of the elastic valve body 20, causing the hollow head portion 21 to be pressed downward, driving the valve body wall 201 against the waist platform 323, and exposing the first flow guiding interface 321 to the airtight joint. In addition to 2111, the first flow guiding interface 321 can be connected to one of the injection nozzles (not shown).

Preferably, the upper conduit 32' can also integrally extend from the outer top surface 311 through the bottom cover body 31 to form a lower conduit 32". The lower conduit 32" has a second flow guiding interface 322, and the lower conduit 32" surrounds the ring. A screwing portion 33 is disposed, and a gap SP is further spaced between the screwing portion 33 and the outer top surface 311. The gap SP communicates with the through hole H. The lower duct 32 ′′ communicates with the screwing portion 33. External pipe fittings Therefore, it can be seen from the above that the present embodiment forms a three-piece needle-free connector module including the sleeve 10, the elastic valve body 20 and the flow guiding member 30, and the self-guide member 30 is integrally formed. The downwardly extending lower duct 32" and the screwing portion 33 can be integrally formed by means of plastic injection, which is different from the first embodiment and the first externally connected extension member via a welded portion (not shown) In the second embodiment, in addition to the integrally formed screw portion 33 and the lower duct 32", the remaining technical contents can be cross-referenced with the foregoing first embodiment and the second embodiment to derive the creation of the third embodiment. .

In summary, the needle-free connector module of the present invention has the following features and functions:

1. The needle-free connector module of the present invention, through the waist platform protruding from the outer wall of the conduit of the flow guiding member, can cause the waist platform to exert a reaction force on the elastic valve body when the elastic valve body abuts against the waist platform, Increase the back pressure effect of the elastic valve body on the syringe to achieve excellent leakage prevention.

2. The needle-free connector module of the present invention, through the waist platform protruding from the outer wall of the conduit of the flow guiding member, can cause the waist platform to exert a reaction force on the elastic valve body when the elastic valve body abuts against the waist platform. When the syringe is removed, the reaction force promotes the ability of the elastomeric valve body to recover itself, thereby extending the useful life of the elastomeric valve body.

3. The needle-free connector module of the present invention allows the high-temperature and high-pressure vapor for sterilization to enter the internal structure of the creation relatively easily through the synergistic assistance of the structure of the bottom cover rib, the through hole and the gap, without causing sterilization. Dead ends, avoiding the improper distribution of pathogens.

4. The needle-free connector module of the present invention achieves the effect of enhancing the structural strength of the bottom cover body through the structure of the bottom cover rib, so that the idea of applying ultrasonic welding on the outer top surface to connect various extension parts in plurality is obtained. The realization of high yield makes this creation have the flexibility of application and function.

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of patent protection of the present creation, so the equivalent of using the present specification or the content of the schema is used. Changes are all included in the scope of protection of this creation and are given to Chen Ming.

10‧‧‧ sleeve

101‧‧‧The lower room

102‧‧‧The upper room

131‧‧‧Limited sloping wall

12‧‧‧ second opening

13‧‧‧First inner wall

14‧‧‧Second inner wall

20‧‧‧Flexible valve body

201‧‧‧ valve body wall

21‧‧‧ hollow head

211‧‧‧ top surface

2111‧‧‧ airtight seam

22‧‧‧ hollow neck

23‧‧‧ hollow shoulder

24‧‧‧ hollow base

241‧‧‧ base of the base

243‧‧‧Expansion Department

30‧‧‧ deflector

31‧‧‧ bottom cover body

311‧‧‧Outer top

312‧‧‧ inside bottom

3121‧‧‧ bottom ribs

32'‧‧‧Upper catheter

32"‧‧‧ Down catheter

321‧‧‧First flow guiding interface

322‧‧‧Second diversion interface

323‧‧‧Low platform

3231'‧‧‧The narrow section of the upper catheter

3232'‧‧‧Upper tube wide

33‧‧‧ screw joint

H‧‧‧via

P1‧‧‧First squeeze margin space

SP‧‧‧ gap

CA‧‧‧ central axis

Claims (20)

A needle-free connector module includes: a sleeve having a first opening formed at a lower end of the sleeve, a second opening opened at an upper end of the sleeve, and a first inner wall, the first An inner wall extends inwardly between the direction of the upper end of the sleeve and the central axis of the sleeve to extend a limiting inclined wall, and the limiting inclined wall extends upwardly toward the upper end of the sleeve. a second inner wall, the limiting inclined wall and the second inner wall define an upper chamber, the first inner wall defining a lower chamber, an elastic valve body having a valve inner wall, and the elastic valve body The upper end to the lower end sequentially include a hollow head portion, a hollow shoulder portion and a hollow base portion for receiving the hollow head portion, the lower chamber for accommodating the hollow base portion, the hollow base portion further Extending the hollow shoulder between the direction of the hollow head and the central axis direction of the longitudinal direction of the sleeve, a top surface of the hollow head is provided with an airtight slit for abutting a syringe; a flow guide comprising: a bottom cover body, the bottom cover body having a conduit, the conduit An outer top surface and an inner bottom surface of the bottom cover body, and the duct protrudes from a side of the inner bottom surface, the duct has a first flow guiding interface, and the duct is on one side of the outer top surface Connected to a second flow guiding interface, the bottom cover body further has a through hole penetrating through the outer top surface and the inner bottom surface; a welding portion on the outer top surface; and a plurality of bottom cover ribs, The bottom cover rib is formed on the inner bottom surface; and an extension member having at least one main pipe, the extension member being connected to the outer top surface via the welding portion, so that the main pipe is connected to the second guide a flow interface, and the extension member is spaced apart from the outer top surface by a gap, the gap is communicated with the through hole, wherein the elastic valve body is sleeved on the conduit, and the hollow shoulder abuts against the limiting oblique wall, So that the elastic valve body and the flow guiding member are jointly assembled in the sleeve, and the bottom is made The cover body encloses the first opening, wherein, in a first use state, the inner wall of the hollow head is covered by the conduit, so that the first flow guiding interface is hidden in the airtight joint And in a second state of use, the syringe is pressed down against the top surface, the hollow head is pressed downward, and the first flow guiding interface is exposed outside the airtight slit, thereby The first flow guiding interface is connectable to one of the injection openings of the syringe. The needle-free connector module of claim 1, wherein one end of the hollow base adjacent to the bottom cover body is a valve body base opening, and an outer edge of the valve body base opening abuts the bottom cover rib. The needle-free connector module of claim 2, wherein a portion of the hollow base adjacent to the bottom cover body extends outwardly relative to a central axis of the sleeve to extend an expansion portion, thereby In the use state, the expansion portion is used to abut against the inner wall of the sleeve. The needle-free connector module according to any one of claims 1 to 3, wherein the inner wall of the elastic valve body is formed by a sandblasting process to form a rough bite microstructure, or the elastic valve body The outer wall is formed by a sandblasting process to form a rough bite microstructure. The needle-free connector module of any one of claims 1 to 3, further comprising an oil layer formed between the flow guiding member and the elastic valve body. The needle-free connector module of any one of claims 1 to 3, wherein the hollow head and the hollow shoulder further comprise a hollow neck, the outer wall of the hollow neck being opposite to the hollow The head and the hollow shoulder are retracted toward the central axis of the sleeve such that the hollow neck and the inner wall of the upper end of the sleeve define a compression margin space in the upper chamber . The needle-free connector module of any one of claims 1 to 3, wherein a screw portion is further disposed around the main pipe for connecting an outer pipe member. A needle-free connector module according to any one of claims 1 to 3, wherein the main A plug is also provided in the pipeline for tightly inserting an external tubular member. The needle-free connector module of claim 8, wherein the section of the main line between the plug portion and the second flow guiding interface further has a branch line, the branch line and the main tube The road forms a Y-shaped structure or a T-shaped structure. The needle-free connector module of any one of claims 1 to 3, wherein an extension cover extends to extend an upper cover, the main pipe is opened on the upper cover, and the upper cover is further provided with a primary pipe and a sterile venting opening to form an upper lid extension member for attachment to a buffer cylinder for retaining the liquid medicine from the dispensing bag and communicating with a patient through a connection assembly The main pipe is welded to the welding portion to communicate with the second flow guiding interface; the secondary pipe is configured to communicate with a drop of the medicine bag; and the sterile ventilation hole is further provided with a sterile filter film, thereby The sterile vent maintains air pressure and sterility inside and outside the buffer cylinder. A needle-free connector module includes: a sleeve having a first opening formed at a lower end of the sleeve, a second opening opened at an upper end of the sleeve, and a first inner wall, the first An inner wall extends inwardly between the direction of the upper end of the sleeve and the central axis of the sleeve to extend a limiting inclined wall, and the limiting inclined wall extends upwardly toward the upper end of the sleeve. a second inner wall, the limiting inclined wall and the second inner wall define an upper chamber, the first inner wall defining a lower chamber, an elastic valve body having a valve inner wall, and the elastic valve body The upper end to the lower end sequentially include a hollow head portion, a hollow shoulder portion and a hollow base portion for receiving the hollow head portion, the lower chamber for accommodating the hollow base portion, the hollow base portion further Extending the hollow shoulder between the direction of the hollow head and the central axis direction of the longitudinal direction of the sleeve, a top surface of the hollow head is provided with an airtight slit for abutting a syringe; and a flow guide comprising: a bottom cover body, the bottom cover body has an upper duct, the upper duct penetrates an outer top surface and an inner bottom surface of the bottom cover body, and the upper duct protrudes from one side of the inner bottom surface to extend out a conduit having a first flow guiding interface, the bottom cover body further having a through hole penetrating the outer top surface and the inner bottom surface; and a waist platform formed on an outer wall of the upper duct An upper conduit narrow portion is defined between the lumbar platform and the first flow guiding interface, and an upper conduit wide portion is defined between the lumbar platform and the inner bottom surface; and a plurality of bottom cover ribs, the bottom cover rib Formed on the inner bottom surface, wherein the elastic valve body is sleeved on the upper duct, and the hollow shoulder abuts against the limiting inclined wall, so that the elastic valve body is combined with the deflector Inside the sleeve, and sealing the bottom cover body to the first opening, wherein, in a first use state, the inner wall of the hollow head is wrapped around the narrow portion of the upper conduit, so that the first a flow guiding interface is hidden in the airtight joint; and in a second use state, the note Pressing the cylinder against the top surface, causing the hollow head to be pressed downward, driving the inner wall of the valve to abut against the waist platform, and exposing the first flow guiding interface to the airtight seam, so that The first flow guiding interface can be coupled to one of the injection openings of the syringe. The needle-free connector module of claim 11, wherein the upper conduit further integrally extends from the outer top surface through the bottom cover body, and the lower conduit has a second flow guiding interface. a screwing portion is disposed around the lower casing, and a gap is defined between the screwing portion and the outer top surface. The gap communicates with the through hole. The lower duct is connected to the outer tubular member together with the screw portion. . The needle-free connector module of claim 11, wherein the inner wall of the valve body comprises a base inner wall formed on the hollow base, and in the second use state, the inner wall of the base abuts the waist platform. The needle-free connector module of claim 13, wherein the base inner wall comprises a side base inner wall and an interference inner wall, wherein the side base inner wall is adjacent to one end of the hollow shoulder, facing the sleeve longitudinally The inner wall of the axis is retracted from the inner wall of the interference, The interference inner wall abuts the lumbar platform in the second use state. The needle-free connector module of claim 14, wherein in the first use state, the interference inner wall, a portion of the inner wall of the side base, the waist platform, and the narrow portion of the upper conduit are common to the A first crush margin space is defined in the hollow base. The needle-free connector module of claim 15, wherein another portion of the inner wall of the side base is wrapped around the upper portion of the upper tube, and the end of the hollow base adjacent to the bottom cover body is a valve body base opening. The outer edge of the valve body base opening abuts against the bottom cover rib. The needle-free connector module of claim 16, wherein a portion of the hollow base adjacent to the bottom cover body extends outwardly relative to a central axis of the sleeve to extend an expansion portion, thereby In the use state, the expansion portion is used to abut against the inner wall of the sleeve. The needle-free connector module according to any one of claims 11 to 17, wherein the inner wall of the elastic valve body is formed by a sandblasting process to form a rough bite microstructure; or the elastic valve body The outer wall is formed by a sandblasting process to form a rough bite microstructure. The needle-free connector module of any one of claims 11 to 17, wherein the oil guiding body and the elastic valve body further comprise an oil layer formed thereon. The needle-free connector module according to any one of claims 11 to 17, wherein a hollow neck portion is further included between the hollow head and the hollow shoulder, and an outer wall of the hollow neck is opposite to the hollow The head and the hollow shoulder are retracted toward the central axis of the sleeve such that the hollow neck and the inner wall of the upper end of the sleeve together define a second squeezing margin in the upper chamber Degree space.