Dosing head

Abstract

The utility model discloses a dosing head, and belongs to the field of medical instruments. The dosing head comprises a shell, a silicon rubber case and a heating plate; the shell is provided with a wiring hole and a first through hole which are communicated with an inner hole of the shell, one end of the shell is sealed, and the heating plate is inserted into an opening in the other end of the shell; the silicon rubber sleeve comprises an outer rubber sleeve and an inner rubber sleeve, one end of the outer rubber sleeve is fixed on the peripheral wall of one end of the inner rubber sleeve, the other end of the outer rubber sleeve extends outwards and is separated from the other end of the inner rubber sleeve to form a negative pressure cavity, one end of the inner rubber sleeve sleeves the shell, and a plurality of bulges arranged at intervals are arranged on the inner peripheral wall of the other end of the inner rubber sleeve; the protrusions and the heating plate are arranged at intervals to clamp the cotton piece, a second through hole is formed in the inner rubber sleeve, and the two ends of the second through hole are communicated with the first through hole and the negative pressure cavity respectively. The dosing head provided by the embodiment of the utility model not only can effectively prevent the cotton piece from falling off, but also can promote the absorption of liquid medicine at acupuncture points and enhance the treatment effect.

Description

Technical Field

[0001] The utility model belongs to the field of medical devices, and particularly relates to a drug delivery head. Background Art

[0002] With the development of society, people's living standards have improved. However, there are more and more diseases, seriously threatening people's physical health. For the treatment of these diseases, people usually take medicine or be hospitalized. Hospitalization costs are high, and the treatment effect is not ideal. Taking medicine has large side effects, the treatment is not very safe, the treatment cycle is long, the duration of drug effect is short, and the treatment effect is also poor. Now people's health awareness has improved. With the development of technology, some high-tech medical and health care devices have emerged, and the treatment method of acupoint drug delivery has emerged.

[0003] However, the conventional acupoint drug delivery method is to apply a cotton sheet (with liquid medicine attached to the cotton sheet) at the acupoint. The cotton sheet is easy to fall off, and the drug is not easily absorbed through the pores, resulting in slow absorption of the drug at the acupoint and poor treatment effect. Summary of the Utility Model

[0004] Aiming at the above defects or improvement requirements of the prior art, the utility model provides a drug delivery head, which aims to not only effectively avoid the cotton sheet from falling off, but also promote the absorption of the liquid medicine at the acupoint and enhance the treatment effect.

[0005] To achieve the above object, the utility model provides a drug delivery head, which includes a housing, a silica gel sleeve and a heating plate;

[0006] The housing has a wire hole and a first through hole communicating with the inner hole of the housing. One end of the housing is sealed, and the heating plate is inserted into the opening at the other end of the housing;

[0007] The silica gel sleeve includes an outer rubber sleeve and an inner rubber sleeve. One end of the outer rubber sleeve is fixed on the outer peripheral wall of one end of the inner rubber sleeve. The other end of the outer rubber sleeve extends outward and is spaced from the other end of the inner rubber sleeve to form a negative pressure cavity. One end of the inner rubber sleeve is sleeved on the housing. The inner peripheral wall of the other end of the inner rubber sleeve has a plurality of spaced protrusions. The plurality of protrusions are spaced from the heating plate to clamp a cotton sheet. The inner rubber sleeve has a second through hole, and both ends of the second through hole communicate with the first through hole and the negative pressure cavity respectively.

[0008] Optionally, the outer peripheral wall of the housing has an outer flange. The end face of one end of the outer rubber sleeve and the end face of one end of the inner rubber sleeve are parallel and jointly form a positioning plane, and the positioning plane abuts against the outer flange.

[0009] Optionally, an annular positioning groove is provided on the inner peripheral wall at one end of the inner rubber sleeve, and an annular protrusion is provided on the outer peripheral wall of the housing, and the annular protrusion is inserted into the annular positioning groove.

[0010] Optionally, the dosing head further includes a vibration plate, the vibration plate is parallelly attached to the heating plate, and the vibration plate is located between the heating plate and the plurality of protrusions.

[0011] Optionally, the vibration plate is provided with a plurality of positioning posts arranged at intervals, each positioning post is provided with a threaded hole, and one end of the housing is provided with a plurality of mounting holes arranged at intervals, and a connecting bolt is inserted into each mounting hole to be inserted into the corresponding threaded hole.

[0012] Optionally, the outer edges of the heating plate are each provided with a plurality of avoidance notches arranged at intervals, and each positioning post penetrates through the corresponding avoidance notch.

[0013] Optionally, a first inner flange and a second inner flange are sequentially provided on the inner peripheral wall of the housing, the inner diameter of the first inner flange is smaller than the inner diameter of the second inner flange, the heating plate is inserted into the second inner flange and is attached to the first inner flange, and the vibration plate is attached to the second inner flange.

[0014] Optionally, an annular groove is provided on the side of the second inner flange facing away from the first inner flange, a sealing ring is inserted into the annular groove, and the sealing ring is clamped between the second inner flange and the vibration plate.

[0015] Optionally, an air vent pipe is inserted into the wire hole, and one end of the air vent pipe is used to communicate with a vacuum pumping device;

[0016] The inner peripheral wall of the housing has a third inner flange, an air vent joint is provided on the third inner flange, the other end of the air vent pipe is communicated with one end of the air vent joint, a communication hole is provided in the third inner flange, and both ends of the communication hole are respectively communicated with the other end of the air vent joint and the first through hole.

[0017] Optionally, the end face of the other end of the outer rubber sleeve and the end face of the other end of the inner rubber sleeve are both flat or curved, and the flat or curved surface is used to fit against the acupoint skin.

[0018] As long as the above-mentioned improved technical features do not conflict with each other, they can be combined with each other.

[0019] Generally speaking, compared with the prior art, the beneficial effects of the above technical solutions conceived by the present utility model include:

[0020] For a drug delivery head provided by an embodiment of the present utility model, when performing acupoint drug delivery, first, a cotton sheet attached with a liquid medicine is clamped between a plurality of protrusions and a heating plate to prevent the cotton sheet from falling off, and an air extraction pipe of a vacuum extraction device is inserted into a wire passing hole. Then, according to the needs of the patient, the cotton sheet and the silica gel sleeve on the drug delivery head are placed downward and are directly attached to the corresponding acupoint. Next, the vacuum extraction device and the heating function of the heating plate are started, and the inner hole of the housing is evacuated through the air extraction pipe, so that the first through hole, the second through hole, and the negative pressure cavity can be evacuated in sequence. A negative pressure is formed in the negative pressure cavity, which can cause the silica gel sleeve to deform and closely adhere to the skin at the acupoint (at this time, the protrusions closely adhere to the skin). In addition, due to the heating effect of the heating plate, the volatilization of the liquid medicine can be promoted, and the pores can be opened, promoting the absorption of the liquid medicine at the acupoint and enhancing the treatment effect.

[0021] That is to say, a drug delivery head provided by an embodiment of the present utility model can not only effectively prevent the cotton sheet from falling off, but also promote the absorption of the liquid medicine at the acupoint and enhance the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural view of a drug delivery head provided by an embodiment of the present utility model;

[0023] Figure 2 is a schematic structural view of a housing provided by an embodiment of the present utility model;

[0024] Figure 3 is a first view of a silica gel sleeve provided by an embodiment of the present utility model;

[0025] Figure 4 is a second view of a silica gel sleeve provided by an embodiment of the present utility model;

[0026] Figure 5 is a cross-sectional view of a silica gel sleeve provided by an embodiment of the present utility model;

[0027] Figure 6 is a cross-sectional view of a housing provided by an embodiment of the present utility model;

[0028] Figure 7 is a schematic structural view of another silica gel sleeve provided by an embodiment of the present utility model.

[0029] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0030] 1. Housing; 11. Wiring hole; 12. First through hole; 13. Outer flange; 14. Annular protrusion; 15. Mounting hole; 16. First inner flange; 17. Second inner flange; 18. Sealing ring; 19. Third inner flange; 191. Ventilation joint; 192. Communication hole; 111. Cylinder cover; 112. Cylinder body; 2. Silicone sleeve; 21. Outer rubber sleeve; 211. Negative pressure chamber; 22. Inner rubber sleeve; 221. Protrusion; 222. Second through hole; 223. Annular positioning groove; 23. Positioning plane; 24. Curved surface; 3. Heating plate; 4. Vibration plate; 41. Positioning post. Detailed implementation mode

[0031] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present utility model, unless otherwise clearly defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] Embodiment:

[0037] Figure 1 is a schematic structural view of a drug delivery head provided by an embodiment of the present utility model. As Figure 1 shown, the drug delivery head includes a housing 1, a silica gel sleeve 2 and a heating plate 3.

[0038] Figure 2 is a schematic structural view of the housing provided by an embodiment of the present utility model. As Figure 2 shown, the housing 1 is provided with a wire routing hole 11 and a first through hole 12 that communicate with the inner hole of the housing 1. One end of the housing 1 is sealed, and the heating plate 3 is inserted into the opening at the other end of the housing 1.

[0039] Figure 3 is a first view of a silica gel sleeve provided by an embodiment of the present utility model. Figure 4 is a second view of a silica gel sleeve provided by an embodiment of the present utility model. Figure 5 is a sectional view of a silica gel sleeve provided by an embodiment of the present utility model. Combining Figures 3 - 5As shown in the figure, the silica gel sleeve 2 includes an outer gel sleeve 21 and an inner gel sleeve 22. One end of the outer gel sleeve 21 is fixed on the outer peripheral wall of one end of the inner gel sleeve 22. The other end of the outer gel sleeve 21 extends outward, and is spaced from the other end of the inner gel sleeve 22 to form a negative pressure cavity 211. One end of the inner gel sleeve 22 is sleeved on the housing 1. The inner peripheral wall of the other end of the inner gel sleeve 22 has a plurality of spaced protrusions 221. The plurality of protrusions 221 are spaced from the heating plate 3 to sandwich a cotton sheet. The inner gel sleeve 22 has a second through hole 222. Both ends of the second through hole 222 communicate with the first through hole 12 and the negative pressure cavity 211 respectively.

[0040] For a drug delivery head provided by an embodiment of the present invention, when performing acupoint drug delivery, first, a cotton sheet attached with a liquid medicine is clamped between a plurality of protrusions 221 and the heating plate 3 to prevent the cotton sheet from falling off, and an air extraction pipe of a vacuum extraction device is inserted into the wire routing hole 11. Then, according to the needs of the patient, the cotton sheet and the silica gel sleeve 2 on the drug delivery head are placed downward and are directly attached to the corresponding acupoint. Next, the vacuum extraction device and the heating function of the heating plate 3 are started. The inner hole of the housing 1 is evacuated through the air extraction pipe, so that the first through hole 12, the second through hole 222, and the negative pressure cavity 211 can be evacuated in sequence. A negative pressure is formed in the negative pressure cavity 211, which can cause the silica gel sleeve 2 to deform and closely adhere to the skin at the acupoint (at this time, the protrusions closely adhere to the skin). In addition, due to the heating effect of the heating plate 3, the volatilization of the liquid medicine can be promoted, and the pores can be opened to promote the absorption of the liquid medicine at the acupoint and enhance the treatment effect.

[0041] That is to say, a drug delivery head provided by an embodiment of the present invention can not only effectively prevent the cotton sheet from falling off, but also promote the absorption of the liquid medicine at the acupoint and enhance the treatment effect.

[0042] It should be noted that a cable is also inserted into the wire routing hole 11. The cable is inserted into the interior of the housing 1 to supply power to the heating plate 3. In addition, the cable can form an electrical integrated cable with the air extraction pipe to avoid the problem of poor airtightness in the wire routing hole 11.

[0043] Exemplarily, the number of the protrusions 221 is 3, and the interval between two adjacent protrusions 221 is 120°.

[0044] Exemplarily, the housing 1 can be made of plastic material. The housing 1 includes a barrel cover 111 and a barrel body 112. The barrel cover 111 seals one end of the barrel body 112. The heating plate 3 is inserted at the end of the other end of the barrel body 112. The barrel cover 111 and the barrel body 112 form the wire routing hole 11, and the first through hole 12 is located on the barrel body 112.

[0045] Continue to refer to Figure 2, the outer peripheral wall of the housing 1 has an outer flange 13. One end face of the outer rubber sleeve 21 and one end face of the inner rubber sleeve 22 are parallel and jointly form a positioning plane 23, and the positioning plane 23 abuts against the outer flange 13.

[0046] In the above embodiment, by abutting the positioning plane 23 against the outer flange 13, the silicone sleeve 2 can be limited, avoiding the silicone sleeve 2 moving upward along the outer wall of the housing 1 during the vacuum pumping process, resulting in a gap between the silicone sleeve 2 and the skin and thus unable to form negative pressure.

[0047] Exemplarily, when using the dosing head, the silicone sleeve 2 is located between the outer flange 13 and the acupuncture point.

[0048] Further, one end inner peripheral wall of the inner rubber sleeve 22 has an annular positioning groove 223, and the outer peripheral wall of the housing 1 has an annular protrusion 14. The annular protrusion 14 is inserted into the annular positioning groove 223, so as to further limit the silicone sleeve 2 through the insertion fit between the annular protrusion 14 and the annular positioning groove 223, avoiding the silicone sleeve 2 from sliding.

[0049] Figure 6 is a cross-sectional view of the housing provided by the embodiment of the present invention, as Figure 6 shown, the dosing head further includes a vibrating plate 4. The vibrating plate 4 is parallelly attached to the heating plate 3, and the vibrating plate 4 is located between the heating plate 3 and a plurality of protrusions 221.

[0050] In the above embodiment, the vibrating plate 4 can generate vibration, thereby further promoting the opening of pores and further promoting the absorption of the liquid medicine.

[0051] Exemplarily, the vibrating plate 4 is made of steel structure. The vibrating plate 4 has a boss, and the heating plate 3 is coaxially sleeved on the boss.

[0052] Further, the vibrating plate 4 has a plurality of positioning columns 41 arranged at intervals. Each positioning column 41 has a threaded hole, and one end of the housing 1 has a plurality of mounting holes 15 arranged at intervals. A connecting bolt (not shown in the figure) is inserted into each mounting hole 15 to be inserted into the corresponding threaded hole.

[0053] In the above embodiment, the installation of the vibrating plate 4 relative to the housing 1 can be realized through the connecting bolts on the housing 1, so as to fix the vibrating plate 4 on the housing 1 and avoid the displacement of the vibrating plate 4 during the vibration process.

[0054] Exemplarily, the number of the positioning columns 41 can be 3 - 6, and the present invention does not limit this.

[0055] In addition, the outer edge of the heating plate 3 has a plurality of avoiding gaps arranged at intervals. Each positioning column 41 penetrates through the corresponding avoiding gap, and the cooperation between the plurality of positioning columns 41 and the corresponding avoiding gaps can realize the positioning of the heating plate 3.

[0056] In this embodiment, a first inner flange 16 and a second inner flange 17 are sequentially arranged on the inner peripheral wall of the housing 1. The inner diameter of the first inner flange 16 is smaller than that of the second inner flange 17. The heating plate 3 is inserted into the second inner flange 17 and abuts against the first inner flange 16, and the vibrating plate 4 abuts against the second inner flange 17.

[0057] In the above embodiment, a step is formed between the first inner flange 16 and the inner peripheral wall of the housing 1, which can realize the positioning of the vibrating plate 4. Another step can be formed between the second inner flange 17 and the first inner flange 16, which can realize the positioning of the heating plate 3 (the diameter of the heating plate 3 is smaller than that of the vibrating plate 4).

[0058] Furthermore, an annular groove is provided on the side of the second inner flange 17 facing away from the first inner flange 16. A sealing ring 18 is inserted into the annular groove, and the sealing ring 18 is clamped between the second inner flange 17 and the vibrating plate 4.

[0059] In the above embodiment, the sealing ring 18 can seal the gap between the vibrating plate 4 and the housing 1, preventing the liquid medicine from volatilizing and entering the inner hole of the housing 1 through the gap around the vibrating plate 4 during the treatment process, which may cause a short circuit of the heating plate 3 or the vibrating plate 4 (the circuit of the vibrating plate 4 is located on its back).

[0060] In addition, in this embodiment, a vent pipe (not shown in the figure) is inserted into the wire hole 11, and one end of the vent pipe is used to communicate with a vacuum pumping device.

[0061] The inner peripheral wall of the housing 1 has a third inner flange 19. An air vent joint 191 is provided on the third inner flange 19. The other end of the vent pipe is communicated with one end of the air vent joint 191. A communication hole 192 is provided in the third inner flange 19, and both ends of the communication hole 192 are respectively communicated with the other end of the air vent joint 191 and the first through hole 12.

[0062] In the above embodiment, through the connection of the air vent joint 191 and the communication hole 192, the vent pipe can directly evacuate the first through hole 12, thereby evacuating the second through hole 222, and preventing gas (liquid medicine) from directly entering the inside of the housing 1 through the first through hole 12, which may cause a short circuit of the heating plate 3 or the vibrating plate 4 (the circuit of the vibrating plate 4 is located on its back).

[0063] Exemplarily, the first inner flange 16 is located between the second inner flange 17 and the third inner flange 19, and the three are sequentially stacked.

[0064] In this embodiment, the other end faces of the outer rubber sleeve 21 and the inner rubber sleeve 22 are both flat surfaces (see Figure 4 ) or curved surfaces 24 (see Figure 7), the flat or curved surface 24 is used to fit the skin at the acupoint.

[0065] That is to say, when the skin at the acupoint is flat, the silicone sleeve 2 with both the other end face of the outer rubber sleeve 21 and the other end face of the inner rubber sleeve 22 being flat is selected at this time to ensure good contact with the skin. When the skin at the acupoint bulges, the other end face of the outer rubber sleeve 21 and the other end face of the inner rubber sleeve 22 are selected as the curved surface 24 (concave inward on both sides) at this time, also ensuring good contact with the skin, so that the corresponding silicone sleeve 2 can be selected according to the surface of the acupoint.

[0066] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drug delivery head, characterized in that, The dosing head includes a housing (1), a silica gel sleeve (2), and a heating plate (3); The housing (1) has a wire hole (11) and a first through hole (12) that communicate with the inner hole of the housing (1). One end of the housing (1) is sealed, and the heating plate (3) is inserted into the opening at the other end of the housing (1); The silica gel sleeve (2) includes an outer sleeve (21) and an inner sleeve (22). One end of the outer sleeve (21) is fixed to the outer peripheral wall of one end of the inner sleeve (22). The other end of the outer sleeve (21) extends outward and is spaced from the other end of the inner sleeve (22) to form a negative pressure chamber (211). One end of the inner sleeve (22) is sleeved on the housing (1). The inner peripheral wall of the other end of the inner sleeve (22) has a plurality of spaced protrusions (221). The plurality of protrusions (221) are spaced from the heating plate (3) to sandwich a cotton sheet. The inner sleeve (22) has a second through hole (222). The two ends of the second through hole (222) communicate with the first through hole (12) and the negative pressure chamber (211) respectively.

2. The administration head according to claim 1, characterized in that, The outer peripheral wall of the housing (1) has an outer flange (13). The end faces of one end of the outer sleeve (21) and one end of the inner sleeve (22) are parallel and jointly form a positioning plane (23). The positioning plane (23) abuts against the outer flange (13).

3. The administration head according to claim 2, wherein, The inner peripheral wall of one end of the inner sleeve (22) has an annular positioning groove (223). The outer peripheral wall of the housing (1) has an annular protrusion (14). The annular protrusion (14) is inserted into the annular positioning groove (223).

4. A drug delivery head according to claim 1, characterized in that, The dosing head further includes a vibration plate (4). The vibration plate (4) is parallel and attached to the heating plate (3). The vibration plate (4) is located between the heating plate (3) and the plurality of protrusions (221).

5. A drug delivery head according to claim 4, characterized in that, The vibration plate (4) has a plurality of spaced positioning posts (41). Each positioning post (41) has a threaded hole. One end of the housing (1) has a plurality of spaced mounting holes (15). A connecting bolt is inserted into each mounting hole (15) to be inserted into the corresponding threaded hole.

6. The dosing head according to claim 5, characterized in that, The outer edge of the heating plate (3) has a plurality of spaced relief notches. Each positioning post (41) passes through the corresponding relief notch.

7. A drug delivery head according to claim 4, characterized in that, The inner peripheral wall of the housing (1) is sequentially provided with a first inner flange (16) and a second inner flange (17). The inner diameter of the first inner flange (16) is smaller than the inner diameter of the second inner flange (17). The heating plate (3) is inserted into the second inner flange (17) and abuts against the first inner flange (16). The vibration plate (4) abuts against the second inner flange (17).

8. A drug delivery head according to claim 7, wherein, An annular groove is provided on the side of the second inner flange (17) facing away from the first inner flange (16). A sealing ring (18) is inserted into the annular groove, and the sealing ring (18) is clamped between the second inner flange (17) and the vibration plate (4).

9. A drug delivery head according to any one of claims 1-8, characterized in that, A ventilation pipe is inserted into the wire hole (11), and one end of the ventilation pipe is used to communicate with a vacuum pumping device; The inner peripheral wall of the housing (1) has a third inner flange (19), and a ventilation joint (191) is provided on the third inner flange (19). The other end of the ventilation pipe is communicated with one end of the ventilation joint (191). A communication hole (192) is provided in the third inner flange (19), and both ends of the communication hole (192) are respectively communicated with the other end of the ventilation joint (191) and the first through hole (12).

10. A drug delivery head according to any one of claims 1-8, characterized in that, The end face of the other end of the outer rubber sleeve (21) and the end face of the other end of the inner rubber sleeve (22) are both flat or a curved surface (24), and the flat surface or the curved surface (24) is used to fit the acupoint skin.

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