Accurate infusion mechanism for solvent acupuncture needle

Abstract

The invention discloses an accurate perfusion mechanism for a solvent acupuncture needle, and relates to the field of medicine dispensing and liquid injection equipment. According to the technical scheme, the accurate perfusion mechanism comprises an acupuncture needle assembly and a clamping assembly; the needle inserting assembly comprises a rack and a needle head, and the needle head is downwards arranged on the rack; the clamping assembly comprises a Z-axis linear module, a lifting frame and a hanging plate. The Z-axis linear module is arranged on the machine frame, the lifting frame is arranged at the moving end of the Z-axis linear module, the hanging plates are vertically arranged on the two sides of the lifting frame respectively, an upper limiting piece and a lower limiting piece are oppositely arranged on the inner side of each hanging plate in the vertical direction, and a weight sensor making contact with the two ends of a connecting plate is arranged on the upper side of each lower limiting piece. And the needle head is arranged corresponding to the upper part of the connecting plate. According to the automatic infusion device, the solution can be automatically infused into the solvent bag, batch rapid infusion can be achieved, the weight is monitored in real time in the infusion process, and infusion is more accurate.

Description

Technical Field

[0001] The invention relates to the field of medicine dispensing and liquid injection equipment, in particular to a precise injection mechanism for solvent acupuncture. Background Art

[0002] Intravenous infusion is one of the most common ways to treat patients in medical institutions at all levels in my country; the number of hospitals using intravenous drug preparation centers has increased rapidly, striving to solve the greater occupational risks of medical and health workers who have to prepare large amounts of harmful drugs for a long time. In the realization of drug dispensing automation, the filling of solvent bags with liquid medicine is an important link to replace manual work. Among them, the filling ports of several solvent bags are usually relatively fixed through connecting plates, and the connecting plates are used to transport and fix the solvent bags. The existing method for the amount of filling is mainly controlled by the duration of flow meters or peristaltic pumps, which is relatively poor in accuracy and cannot meet the needs of some solutions that are sensitive to drug dosage. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a precise perfusion mechanism for solvent acupuncture, which can automatically perfuse the solvent bag with solution and can realize rapid batch perfusion. The weight is monitored in real time during the perfusion process, and the perfusion is more precise.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a precise perfusion mechanism for solvent acupuncture, comprising a acupuncture assembly and a clamping assembly;

[0005] The needle sticking assembly comprises a frame and a needle, and the needle is arranged downwardly on the frame;

[0006] The clamping assembly includes a Z-axis linear module, a lifting frame and a hanging plate;

[0007] The Z-axis linear module is arranged on the frame, and the lifting frame is arranged at the moving end of the Z-axis linear module. The hanging plates are vertically arranged on both sides of the lifting frame respectively, and the upper limit piece and the lower limit piece are relatively arranged on the inner side of the hanging plate. A weight sensor in contact with the two ends of the connecting plate is arranged on the upper side of the lower limit piece, and the needle head is arranged corresponding to the upper side of the connecting plate.

[0008] The two sides of the lifting frame are respectively lifted up by the two ends of the corresponding connecting plate through the hanging plates, wherein the upper limit piece and the lower limit piece are used to limit the two ends of the connecting plate up and down, so as to lift the connecting plate to connect the solvent bag and move up and down.

[0009] After the two ends of the connecting plate are stuck between the lower limit piece and the upper limit piece, the lifting frame is driven upward by the Z-axis linear module, so that the connecting plate is close to the needle until the needle penetrates into the opening of the solvent bag, and then the liquid is injected into the solvent bag. After the injection is completed, the Z-axis linear module moves downward. Due to the existence of the upper limit piece, the connecting plate is away from the needle, and the needle is separated from the opening of the solvent bag, completing the injection of the solvent bag.

[0010] In this solution, since a weight sensor is provided at the lower limit member, the connecting plate and the solvent bag can be weighed respectively before and after liquid injection, so as to accurately guide the weight of the liquid injected into the solvent bag and make the injection more accurate.

[0011] Preferably, the frame includes a Y-axis linear module, the Y-axis linear module is provided with a base, the moving end of the Y-axis linear module is provided with an X-axis suspension beam, and the Z-axis linear module and the needle are located on the X-axis suspension beam, so as to move the whole in the Y-axis direction, so as to increase the moving range of the pillow in the Y-axis, and more solvent bags can be infused at a time.

[0012] Preferably, the needle assembly further comprises an X-axis linear module, the X-axis linear module is arranged on the X-axis suspension beam, and the needle head is arranged at the movable end of the X-axis linear module, that is, the needle head can realize the X-axis linear movement position, and can perfuse multiple solvent bags of the same connecting plate.

[0013] Preferably, the needle assembly includes an X-axis slide bar and a lever; the X-axis slide bar slides relative to the lifting frame, the lever is located on the outer side of one of the hanging plates, the middle part of the lever is hinged relative to the hanging plate, the upper end of the lever is linked to one end of the lever, the upper limit member includes a first upper limit member and a second upper limit member, the first upper limit member and the second upper limit member are respectively slid from the outer side of the hanging plates on both sides to the inner side, the first upper limit member is driven to slide by a push member, the outer end of the first upper limit member is linked to the other end of the lever, and the outer end of the second upper limit member is fixed relative to the other end of the X-axis slide bar.

[0014] Since the two ends of the lever are respectively connected to the X-axis slide bar and the first upper limit member, when the lever swings, it can drive the first upper limit member and the second upper limit member to slide at the same time, and they slide towards each other and move closer or farther away at the same time, thereby achieving simultaneous limitation and contact of the two ends of the connecting plate.

[0015] Preferably, the outer end of the first upper limit member is fixed to the first synchronous frame, and a roller is arranged on the upper side of the first synchronous frame; the pushing member includes a pushing plate and a reset spring, and the pushing plate is arranged on the base, and the pushing plate is provided with a guide edge in contact with the roller, and the guide edge includes a vertical edge of the upper section and a beveled edge of the lower section, and the upper side of the beveled edge is closer to the roller than the lower side; the reset spring is arranged between the first synchronous frame and the corresponding hanging plate, and when the lifting frame moves upward and the roller contacts the beveled edge, the beveled edge pushes the first synchronous frame to squeeze the reset spring, and the inner end of the first upper limit member passes through the inner side of the hanging plate.

[0016] The movement of the first upper limit member and the second upper limit member is provided by the pushing member. When the lifting frame is at the lowest position, the rotating roller is below the bevel, and under the action of the return spring, the first upper limit member and the second upper limit member are pushed outward and away, and the connecting plate can be taken out more conveniently at this time; the two ends of the connecting plate are placed behind the lower limit member, and when the lifting frame moves upward, the bevel will push the rotating roller, so that the first upper limit member and the second upper limit member are pushed inward and close to each other, that is, the first upper limit member and the second upper limit member move to above the two ends of the connecting plate. As a result, the connecting plate is limited at the top during the process of being driven upward. After the rotating roller contacts the vertical edge, the needle gradually penetrates into the solvent bag until the lifting frame moves to the uppermost position. After the needle completes the perfusion of the solvent bag,

[0017] Preferably, both ends of the lever are provided with strip holes, and the ends of the X-axis slide bar and the first synchronous frame are provided with pins penetrating the strip holes. The matching mode of the strip holes and the pins can, on the one hand, maintain the linkage matching of the two, so that the lever can drive the first upper limit member and the second upper limit member to move, and on the other hand, can avoid the problem of the position change of the pin matching caused by the swing of the lever.

[0018] Preferably, the inner side of the hanging plate is provided with side limiters corresponding to the front and rear sides of the connecting plate, so as to limit the front and rear sides of the connecting plate and make the up and down movement more stable.

[0019] Preferably, a first guide rod is fixed in parallel to the first upper limit member, and the first guide rod is slidably matched with the corresponding hanging plate, so as to facilitate more stable sliding of the first upper limit member.

[0020] Preferably, a second guide rod is fixed in parallel to the second upper limit member, and the second guide rod is slidably matched with the corresponding hanging plate, so as to facilitate more stable sliding of the second upper limit member.

[0021] Preferably, a second synchronous frame is disposed at the outer end of the second upper limit member, and the other end of the X-axis slide bar is fixed to the second synchronous frame, so as to better set the relative position of the X-axis slide bar and the second upper limit member.

[0022] Beneficial effects of the present invention:

[0023] This solution can realize automatic filling of the solvent bag with solution, and can realize rapid batch filling. The weight is monitored in real time during the filling process, and the filling is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only 5 of the drawings of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a first stereoscopic view of an embodiment of the present invention (equipped with a solvent bag);

[0026] Figure 2 is a second stereoscopic view of an embodiment of the present invention (without a solvent bag);

[0027] Figure 3 is a third stereoscopic view (back side perspective) of an embodiment of the present invention;

[0028] Figure 4 is a front perspective view of a clamping assembly according to an embodiment of the present invention;

[0029] Figure 5 is a rear perspective view of a clamping assembly according to an embodiment of the present invention;

[0030] Among them, 1. needle head; 2. Z-axis linear module; 3. lifting frame; 4. hanging plate; 5. roller; 6. lower limit piece; 7. weight sensor; 8. connecting plate; 9. solvent bag; 10. base; 11. X-axis suspension beam; 12. X-axis slide bar; 13. lever; 14. first upper limit piece; 15. second upper limit piece; 16. first synchronous frame; 17. second synchronous frame; 18. push plate; 19. reset spring; 20. guide edge; 21. vertical edge; 22. bevel edge; 23. strip hole; 24. pin; 25. side limit piece; 26. first guide rod; 27. second guide rod; 28. Y-axis linear module; 29. ​​X-axis linear module. DETAILED DESCRIPTION

[0031] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0032] Example

[0033] like Figure 1 and Figure 2 As shown, a precise perfusion mechanism for solvent acupuncture includes a needle acupuncture assembly and a clamping assembly; the needle acupuncture assembly includes a frame and a needle head 1, and the frame is provided with the needle head 1 downward; the clamping assembly includes a Z-axis linear module 2, a lifting frame 3 and a hanging plate 4; Figure 3As shown, the Z-axis linear module 2 is arranged on the frame, the lifting frame 3 is arranged at the moving end of the Z-axis linear module 2, the hanging plates 4 are vertically arranged on both sides of the lifting frame 3, and the upper and lower limit members 6 are relatively arranged on the inner side of the hanging plate 4. The upper side of the lower limit member 6 is provided with a weight sensor 7 that contacts with both ends of the connecting plate 8, and the needle head 1 is arranged above the connecting plate 8.

[0034] The two sides of the lifting frame 3 are lifted up by the hanging plates 4 corresponding to the two ends of the connecting plate 8, wherein the upper limit member and the lower limit member 6 are used to limit the two ends of the connecting plate 8 up and down, so as to lift the connecting plate 8 to connect with the solvent bag 9 and move it up and down.

[0035] After the two ends of the connecting plate 8 are stuck between the lower limit piece 6 and the upper limit piece, the lifting frame 3 is driven upward by the Z-axis linear module 2 to make the connecting plate 8 close to the needle 1 until the needle 1 is inserted into the opening of the solvent bag 9, and then the liquid is injected into the solvent bag 9. After the injection is completed, the Z-axis linear module 2 moves downward. Due to the existence of the upper limit piece, the connecting plate 8 is away from the needle 1, and the needle 1 is separated from the opening of the solvent bag 9, completing the injection of the solvent bag 9.

[0036] In this solution, since the weight sensor 7 is provided on the lower limit member 6, the connecting plate 8 and the solvent bag 9 can be weighed respectively before and after the liquid injection, so as to accurately guide the weight of the liquid injected into the solvent bag 9 and make the injection more accurate.

[0037] The frame includes a Y-axis linear module 28, the Y-axis linear module 28 is provided with a base 10, the moving end of the Y-axis linear module 28 is provided with an X-axis suspension beam 11, and the Z-axis linear module 2 and the needle 1 are located on the X-axis suspension beam 11. In order to move the whole in the Y-axis direction, so as to increase the moving range of the pillow in the Y-axis, more solvent bags 9 can be perfused at a time.

[0038] The needle assembly further includes an X-axis linear module 29, which is disposed on the X-axis suspension beam 11, and the needle 1 is disposed at the movable end of the X-axis linear module 29. That is, the needle 1 can realize an X-axis linear movement position, and can perfuse multiple solvent bags 9 of the same connecting plate 8.

[0039] Combination Figure 4As shown, the needle-piercing assembly includes an X-axis slide bar 12 and a lever 13; the X-axis slide bar 12 slides relative to the lifting frame 3, the lever 13 is located on the outer side of one of the hanging plates 4, the middle part of the lever 13 is hinged relative to the hanging plate 4, the upper end of the lever 13 is linked to one end of the lever 13, the upper limit positioning member includes a first upper limit positioning member 14 and a second upper limit positioning member 15, the first upper limit positioning member 14 and the second upper limit positioning member 15 are respectively slidably penetrated from the outer side of the hanging plate 4 on both sides to the inner side, the first upper limit positioning member 14 is driven to slide by a push member, the outer end of the first upper limit positioning member 14 is linked to the other end of the lever 13, and the outer end of the second upper limit positioning member 15 is fixed relative to the other end of the X-axis slide bar 12.

[0040] Since the two ends of the lever 13 are respectively connected to the X-axis slide bar 12 and the first upper limit member 14, that is, when the lever 13 swings, it can simultaneously drive the first upper limit member 14 and the second upper limit member 15 to slide, and they slide toward each other and move closer or farther away from each other, thereby achieving simultaneous limitation and contact of the two ends of the connecting plate 8.

[0041] Combination Figure 5 As shown, the outer end of the first upper limit member 14 is fixed to the first synchronous frame 16, and the upper side of the first synchronous frame 16 is provided with a roller 5; the pushing member includes a pushing plate 18 and a reset spring 19, and the pushing plate 18 is arranged on the base 10, and the pushing plate 18 is provided with a guide edge 20 in contact with the roller 5, and the guide edge 20 includes a vertical edge 21 in the upper section and a beveled edge 22 in the lower section, and the upper side of the beveled edge 22 is closer to the roller 5 than the lower side; the reset spring 19 is arranged between the first synchronous frame 16 and the corresponding hanging plate 4, and when the lifting frame 3 moves upward and the roller 5 contacts the beveled edge 22, the beveled edge 22 pushes the first synchronous frame 16 to squeeze the reset spring 19, and the inner end of the first upper limit member 14 is penetrated through the inner side of the hanging plate 4.

[0042] The movement of the first upper limit member 14 and the second upper limit member 15 is provided by the pushing member. When the lifting frame 3 is at the lowest point, the rotating roller 5 is below the bevel 22. Under the action of the return spring 19, the first upper limit member 14 and the second upper limit member 15 are pushed outward and away, and the connecting plate can be taken out more conveniently at this time; the two ends of the connecting plate 8 are placed after the lower limit member 6, and when the lifting frame 3 moves upward, the bevel 22 will push the rotating roller 5, so that the first upper limit member 14 and the second upper limit member 15 are pushed inward and close, that is, the first upper limit member 14 and the second upper limit member 15 move to above the two ends of the connecting plate 8. As a result, the connecting plate 8 is limited at the top during being driven upward. After the rotating roller 5 contacts the vertical edge 21, the needle 1 gradually penetrates into the solvent bag 9 until the lifting frame 3 moves to the uppermost position. After the needle 1 completes the perfusion of the solvent bag 9,

[0043] The two ends of the lever 13 are respectively provided with strip holes 23, and the ends of the X-axis slide bar 12 and the first synchronous frame 16 are respectively provided with pins 24 penetrating the strip holes 23. The matching mode of the strip holes 23 and the pins 24 can, on the one hand, maintain the linkage matching of the two, and the lever 13 can drive the first upper limit member 14 and the second upper limit member 15 to move, and on the other hand, can avoid the problem of the position change of the pin 24 caused by the swing of the lever 13.

[0044] The inner side of the hanging plate 4 is provided with a side limiter 25 corresponding to the front and rear sides of the connecting plate 8. The front and rear sides of the connecting plate 8 are limited to make the up and down movement more stable.

[0045] A first guide rod 26 is fixed in parallel to the first upper limit member 14, and the first guide rod 26 is slidably matched with the corresponding hanging plate 4, so as to facilitate more stable sliding of the first upper limit member 14.

[0046] A second guide rod 27 is fixed in parallel to the second upper limit member 15, and the second guide rod 27 is slidably matched with the corresponding hanging plate 4, so as to facilitate more stable sliding of the second upper limit member 15.

[0047] The outer end of the second upper limit member 15 is provided with a second synchronous frame 17, and the other end of the X-axis slide bar 12 is fixed to the second synchronous frame 17. This facilitates better setting of the relative position of the X-axis slide bar 12 and the second upper limit member 15.

[0048] Beneficial effects of the present invention:

[0049] This solution can realize automatic filling of the solvent bag 9 with solution, and can realize rapid batch filling, and the weight is monitored in real time during the filling process, so that the filling is more accurate.

[0050] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A precise injection mechanism for solvent acupuncture, characterized in that: It includes a needle pricking assembly and a clamping assembly; The needle sticking assembly comprises a frame and a needle (1), wherein the frame is provided with the needle (1) downwardly; The clamping assembly comprises a Z-axis linear module (2), a lifting frame (3) and a hanging plate (4); The Z-axis linear module (2) is arranged on the frame, the lifting frame (3) is arranged at the moving end of the Z-axis linear module (2), the hanging plates (4) are respectively arranged vertically on both sides of the lifting frame (3), the upper limit member and the lower limit member (6) are arranged relatively on the inner side of the hanging plate (4), the upper side of the lower limit member (6) is provided with a weight sensor (7) in contact with the two ends of the connecting plate (8), and the needle head (1) is arranged above the connecting plate (8).

2. The precise injection mechanism for solvent acupuncture according to claim 1, characterized in that: The frame comprises a Y-axis linear module (28), the Y-axis linear module (28) is provided with a base (10), the movable end of the Y-axis linear module (28) is provided with an X-axis suspension beam (11), and the Z-axis linear module (2) and the needle head (1) are located on the X-axis suspension beam (11).

3. The precise injection mechanism for solvent acupuncture according to claim 2, characterized in that: The needle-piercing assembly further comprises an X-axis linear module (29), wherein the X-axis linear module (29) is arranged on the X-axis suspension beam (11), and the needle head (1) is arranged at the movable end of the X-axis linear module (29).

4. The precise injection mechanism for solvent acupuncture according to claim 3, characterized in that: The needle assembly comprises an X-axis slide bar (12) and a lever (13); the X-axis slide bar (12) is slidably matched with the lifting frame (3), the lever (13) is located on the outer side of one of the hanging plates (4), the middle part of the lever (13) is hinged relative to the hanging plate (4), the upper end of the lever (13) is linked with one end of the lever (13), and the upper limit member comprises a first upper limit member (14) and a second upper limit member (15), the first upper limit member (14) and the second upper limit member (15) are respectively slidably penetrated from the outer side of the hanging plate (4) on both sides to the inner side, the first upper limit member (14) is driven to slide by a push member, the outer end of the first upper limit member (14) is linked with the other end of the lever (13), and the outer end of the second upper limit member (15) is fixed relative to the other end of the X-axis slide bar (12).

5. The precise injection mechanism for solvent acupuncture according to claim 4, characterized in that: The outer end of the first upper limit member (14) is fixed to the first synchronous frame (16), and a roller (5) is arranged on the upper side of the first synchronous frame (16); the pushing member includes a pushing plate (18) and a reset spring (19), the pushing plate (18) is arranged on the base (10), and the pushing plate (18) is provided with a guide edge (20) in contact with the roller (5), the guide edge (20) includes a vertical edge (21) of the upper section and a bevel edge (22) of the lower section, and the upper side of the bevel edge (22) is closer to the roller (5) than the lower side; the reset spring (19) is arranged between the first synchronous frame (16) and the corresponding hanging plate (4), and when the lifting frame (3) moves upward and the roller (5) contacts the bevel edge (22), the bevel edge (22) pushes the first synchronous frame (16) to squeeze the reset spring (19), and the inner end of the first upper limit member (14) is arranged to pass through the inner side of the hanging plate (4).

6. The precise injection mechanism for solvent acupuncture according to claim 5, characterized in that: The two ends of the lever (13) are respectively provided with strip holes (23), and the ends of the X-axis slide rod (12) and the first synchronous frame (16) are respectively provided with pins (24) penetrating the strip holes (23).

7. The precise injection mechanism for solvent acupuncture according to claim 5, characterized in that: Side limiting members (25) are provided on the inner side of the hanging plate (4) corresponding to the front and rear sides of the connecting plate (8).

8. The precise injection mechanism for solvent acupuncture according to claim 6, characterized in that: A first guide rod (26) is fixed in parallel to the first upper limit member (14), and the first guide rod (26) is slidably matched with the corresponding hanging plate (4).

9. The precise injection mechanism for solvent acupuncture according to claim 5, characterized in that: A second guide rod (27) is fixed in parallel to the second upper limit member (15), and the second guide rod (27) is slidably matched with the corresponding hanging plate (4).

10. The precise injection mechanism for solvent acupuncture according to claim 5, characterized in that: A second synchronous frame (17) is provided at the outer end of the second upper limit member (15), and the other end of the X-axis sliding rod (12) is fixed to the second synchronous frame (17).

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