TWI842214B - Manual blender for feeding syringe - Google Patents

Abstract

The present invention relates to a manual blender for feeding syringe, including a base body, a driving unit, and a stirring member. The base body includes a pressing part and a fixing part, and the pressing part is disposed on the base body in a reciprocatingly movable manner along a pressing direction. The driving unit is disposed on the base body and connected to the pressing part, and the driving unit includes an output shaft extending from the base body along an axis direction. The stirring member is connected to the output shaft and includes a blade, and the length of the stirring member can be changed by any one of the following means: replacing, telescoping, or deforming. The fixing part is fixed to a periphery wall of an opening of the feeding syringe so that the base body is fixed to a position adjacent to an opening of the feeding syringe. When in use, the length of the stirring member in the axis direction is so adjusted that the stirring member extends to reach a bottom portion of a receiving space of the feeding syringe; a user holds the base body with one hand and presses the pressing part by the index finger of the hand, reciprocatingly, in the pressing direction so that the blade is driven to rotate reciprocatingly at the bottom portion. According to this, the present invention is adapted to feeding syringes of different diameters or different lengths by means of its extendable, flexible, or replaceable stirring member, and can reliably blend the liquid food or medicine in the feeding syringes.

Description

Manual mixer for feeding empty needles

The present invention relates to a manual stirrer for feeding an empty needle, and in particular to an invention that can timely stir the medicine in the empty needle when using the empty needle to administer medicine to patients wearing nasogastric tubes, orogastric tubes or enterogastric stomas, so as to prevent the medicine from dissolving to different degrees and causing incompletely dissolved medicine to flow into the tube, thereby causing uneven flow rate of the medicine in the tube, which may also cause blockage in severe cases.

When patients are unable to eat or refuse to eat, they are usually fed with a nasogastric tube, an orogastric tube or a tube inserted through a gastrostomy. Liquid food or medicine is directly poured into the stomach through a nasogastric tube worn in the nasal cavity, an orogastric tube in the mouth or a tube inserted through a gastrostomy, so that the liquid food or medicine enters the body and is absorbed.

During gavage feeding, the liquid food or medicine is mixed and poured into the empty needle, and the liquid food or medicine flows slowly into the stomach by its own weight. However, the liquid food or medicine may have uneven particle sizes. When flowing, the liquid food or medicine with larger particles may block the nasogastric tube, orogastric tube or enterogastrostomy tube, making the gavage feeding procedure impossible to proceed smoothly. Therefore, the empty needle is usually held with one hand, and the other hand is used to assist in using a stirring rod to stir the liquid food or medicine in the empty needle, so that the liquid food or medicine in the empty needle can flow smoothly, so as to facilitate the liquid food or medicine to flow into the digestive tract through the tube. However, when one hand holds the empty feeding needle and the other hand stirs, there is no free hand to control the joint between the empty feeding needle and the nasogastric tube, orogastric tube or enterogastric tube. For example, when the fluid food or medicine in the tube continues to enter the stomach or the flow rate is too fast, it will cause vomiting or fluid dripping. Before air enters the digestive tract and causes abdominal distension, the operator will fold the nasogastric tube or orogastric tube with one hand to stop the fluid food or medicine in the tube from entering the stomach. The above method of using one hand to fold the tube to interrupt the fluid supply requires one hand to keep the tube folded, which is not convenient to operate, and the method of folding the tube is not easy to use to control the flow rate.

The Republic of China patent publication No. M409840 "Improved feeding needle" is to set a filter unit at the inlet of the empty needle to filter the liquid food poured into the empty needle body from the inlet, so as to ensure the particle size of the liquid food or medicine, avoid nasogastric tube blockage, affect the feeding effect, and can be operated with one hand without stirring. However, if the mesh of the filter unit is too large when used in the above case, it may still cause the nasogastric tube, orogastric tube or the tube passing through the enterogastrostomy to be blocked and another new nasogastric tube, orogastric tube or enterogastrostomy tube needs to be replaced, or the nasogastric tube, orogastric tube or enterogastrostomy tube needs to be cleaned, so that the feeding procedure cannot be carried out smoothly.

There is also a Republic of China patent publication number M506605 "Feeding device with electric stirring function" which uses the stirrer to continuously stir the feeding solution so that the feeding solution that is too thick or will precipitate will not block the output port of the feeding device, making the feeding process smoother for nursing staff. However, although the above-mentioned prior art can be operated with one hand, it uses an electric motor as the power for stirring the feeding solution. The electric motor generates heat energy when it is running, and the heat energy increases the temperature of the liquid food or medicine, thereby damaging the quality of the liquid food or medicine, and is not conducive to feeding the deteriorated liquid food or medicine to the patient. Moreover, when the electric motor is used to stir the liquid food or medicine, the speed of the electric motor is a fixed value, and the speed cannot be adjusted in time according to the condition of the liquid food or medicine in the empty needle, so that the liquid food or medicine overflows, or the liquid food or medicine that is too thick in the empty needle cannot be stirred. In particular, the feeding tube disclosed in the patent has a specific shape. For example, the feeding tube is provided with an independent feeding inlet tube for introducing feeding medicine or food into the feeding tube. In addition, the opening of the feeding tube is also provided with two fixing plates for fixing the stirring unit. These customized feeding tube structures make it impossible to use the standard feeding empty needle in the patent, which is not convenient to use.

Therefore, the inventor provides a device that can stir the liquid food or medicine in the empty feeding needle without using electricity, and can adjust the stirring speed in time according to the condition of the liquid food or medicine. At the same time, the operator can smoothly operate the stirring with only one hand. In addition, the stirrer can be applied to various standard empty feeding needles of different sizes. A manual stirrer for empty feeding needles is proposed, which is matched with an empty feeding needle and is held in the palm of one hand for use. The empty feeding needle has an opening, a peripheral wall and a receiving groove. The manual stirrer for empty feeding needles comprises: a base body, comprising a pressing part and a fixing part, the pressing part is reciprocally movable in a pressing direction and is arranged on the base body; a driving unit is arranged on the base body; The driving unit is connected to the pressing part, and the driving unit includes an output shaft, which extends from the base body in an axial direction; a stirring piece is connected to the output shaft, and the stirring piece includes a blade, and the stirring piece changes its length in the axial direction by any of the following methods: replacement, extension and deformation; the aforementioned fixing part is fixed to the peripheral wall at the opening, so that the base body is fixed to the position of the opening of the empty feeding needle, and the stirring piece extends to a bottom of the accommodating groove by changing its length in the axial direction; the operator holds the base body with the palm, and an index finger of the palm is located at the pressing part, and the index finger reciprocates the pressing part along the pressing direction, and the driving unit links the blade to reciprocate and rotate at the bottom.

Furthermore, the base body has a top surface and a bottom surface located on two opposite sides along the axis, and a water injection channel is provided on the base body and passes through the top surface, the bottom surface and the fixing portion.

Furthermore, the base has a top surface and a bottom surface located on two opposite sides along the axial direction, and the base has two protruding extension arms, the two extension arms are respectively disposed adjacent to the top surface and the bottom surface, and two guide grooves are respectively disposed on the two extension arms, and the opposite ends of the pressing portion extend into the two guide grooves respectively.

Furthermore, two elastic members are respectively disposed in the guide groove, and the opposite ends of each elastic member are respectively connected to the seat body and the pressing part.

Furthermore, the fixing portion includes a sleeve portion and a clamping member, the sleeve portion extends from the base along the axial direction, the sleeve portion includes an inner wall member and an outer wall member, the inner wall member and the outer wall member are separated by a gap along the pressing direction, and the clamping member is movably disposed on the outer wall member along the pressing direction.

Furthermore, the fixing portion is in the shape of a truncated cone, the fixing portion extends from the base along the axis, and the material of the fixing portion is elastic.

Furthermore, the radial length of the inner wall member along the pressing direction is between 15 mm and 22 mm.

Furthermore, the base body has a recessed gripping portion, the gripping portion has a gripping surface, the gripping surface and the pressing portion are located on two opposite sides of the base body along the pressing direction, and the gripping portion is provided at a position corresponding to the base of the palm.

Furthermore, the stirring member has an extension portion and a stirring portion, and the stirring portion is connected to the extension portion.

Furthermore, the stirring element has a stirring portion, and the material of the stirring portion is flexible.

Furthermore, there are at least two stirring elements, each of which has a different length, and each stirring element can be connected to the output shaft interchangeably.

Furthermore, there is a control valve, the control valve has a control valve inlet, a control valve outlet and a control knob, the control valve inlet is connected to the control valve outlet, the control knob is arranged between the control valve inlet and the control valve outlet, the feeding needle has an outlet, and the outlet is connected to the control valve inlet.

Based on the above technical features, the following effects can be achieved:

1. It can be applied to various standard feeding needles of different diameters and lengths. Through the retractable, flexible or different length stirring parts, the liquid food or medicine in the feeding needle can be stirred accurately.

2. The manual stirrer can be installed on the empty feeding needle, and the liquid food or medicine in the empty feeding needle can be stirred without using electricity, so that the particle size of the liquid food or medicine tends to be consistent, avoiding blockage when the liquid food or medicine flows into the nasogastric tube, orogastric tube or the tube passing through the enterogastrostomy, making it impossible for the patient to eat.

3. When holding the manual mixer in the palm of your hand, the base of your thumb and the thumb can rest against the grip, and the pulp of your index finger and/or middle finger can rest against the pressing part, so that the operator only needs to hold the feeding space with one hand and press or release the pressing part smoothly, driving the stirring part to rotate and stir, which is ergonomic and convenient for one-handed operation.

4. When the manual mixer is inserted into the empty feeding needle, the peripheral wall of the empty feeding needle can be against the seat, and the sleeve part of the seat can be sleeved on the peripheral wall in the opening, and the gap between the inner wall part and the clamping part can be adjusted by the clamping part, so that the manual mixer can be clamped on the empty feeding needle of different calibers; when the manual mixer is in use, the manual mixer can be stably set on the empty feeding needle.

5. When the liquid food or medicine in the empty feeding needle is too thick and difficult to stir, clean water can be injected into the water injection channel and flow into the empty feeding needle. The liquid food or medicine in the empty feeding needle can be diluted without removing the manual stirrer from the empty feeding needle, which is convenient to use.

6. Equipped with a control valve, it can completely close the feeding channel of the empty feeding needle, which is conducive to mixing food or medicine evenly before feeding. The control valve can also adjust the flow rate of the feeding channel so that food or medicine can be injected into the body at the most appropriate flow rate.

1: Seat

1A: Seat

10:Fixed part

10A: Fixed part

11: Top

12: Bottom

13: Extension arm

131: Guide groove

14: Grip

15: Pressing part

151:Cylinder

16: Fitting part

161: Wall interior

162: Wall exterior parts

17: Clamping parts

18: Water injection channel

19: Cover

191: Opening

2: Drive unit

21: Tooth

22: Gear

23: Output shaft

3: Elastic parts

4: Stirring parts

4A: retractable stirring element

4B: bendable stirring element

4C: Long stirring element

4D: Short stirring element

5: Empty needle for feeding

51: Open mouth

52: Peripheral wall

53: Storage tank

54: Bottom

5A: Empty needle for feeding

53A: Storage tank

54A: Bottom

5B: Empty needle for gavage

53B: Receiving groove

54B: bottom

6: Palm

7: Control valve

71: Control valve inlet

72: Control valve outlet

73: Control knob

A: Axial

D: Press direction

[Figure 1] is a three-dimensional appearance diagram of the present invention.

[Figure 2] is an exploded view of the present invention.

[Figure 3] is a schematic diagram of the present invention being inserted axially into an empty feeding needle.

[Figure 3A] is a schematic diagram of another embodiment of the fixing part.

[Figure 4] is a schematic diagram of inserting the feeding needle of the present invention and making the feeding needle touch the bottom surface of the seat.

[Figure 4A] is a schematic diagram of inserting the fixing part of another embodiment of the present invention into the empty feeding needle and making the empty feeding needle contact the fixing part.

[Figure 5] is a schematic diagram showing how to adjust the clamping piece and press the empty feeding needle between the inner wall piece and the clamping piece and hold it in the palm of your hand.

[Figure 6] is a top view schematic diagram of the pressing part of the present invention in the first position.

[Figure 7] is a side view schematic diagram of the pressing part of the present invention in the first position.

[Figure 8] is a top view schematic diagram of the pressing part of the present invention moving to the second position.

[Figure 9] is a side view schematic diagram of the pressing part of the present invention moving to the second position.

[Figure 10A] is a schematic diagram of the present invention being used in conjunction with a short empty feeding needle and a retractable stirring element.

[Figure 10B] is a schematic diagram of the present invention being used in conjunction with a long empty feeding needle and a retractable stirring element.

[Figure 11A] is a schematic diagram of the present invention being used in conjunction with a short empty feeding needle and a flexible stirring element.

[Figure 11B] is a schematic diagram of the present invention being used in conjunction with a long empty feeding needle and a flexible stirring element.

[Figure 12A] is a schematic diagram of the present invention being used in conjunction with a short empty feeding needle and a short stirring element.

[Figure 12B] is a schematic diagram of the present invention being used in conjunction with a long empty feeding needle and a long stirring element.

[Figure 13] is a schematic diagram of inserting a feeding needle and setting a control valve at the outlet of the feeding needle according to the present invention.

Combining the above technical features, the main functions of the manual stirrer for feeding empty needles of the present invention can be clearly presented in the following embodiments.

Please refer to the first and second figures. The manual stirrer for feeding an empty needle of the present invention comprises a base 1, a driving unit 2, two elastic parts 3 and a plurality of stirring parts 4.

The base 1 has a top surface 11, a bottom surface 12, two extension arms 13, a pressing portion 15, a fixing portion 10 and a water injection channel 18. The top surface 11 and the bottom surface 12 are located at two opposite sides of the base 1 along an axial direction A. The two extension arms 13 are protruded from the base 1 along a pressing direction D and are respectively disposed adjacent to the top surface 11 and the bottom surface 12. The opposite ends of the pressing portion 15 are movably extended into the two extension arms 13 along the pressing direction D. The base 1 is provided with a gripping portion 14 in a recessed manner in the arm 13. The gripping portion 14 has a gripping surface. The gripping surface and the pressing portion 15 are located at opposite sides of the base 1 along the pressing direction D. The fixing portion 10 includes a sleeve portion 16 and a clamping member 17. The sleeve portion 16 is protruding from the bottom surface 12. The sleeve portion 16 includes an inner wall member 161 and an outer wall member 162. The inner wall member 161 and the outer wall member 162 are opposite to each other along the pressing direction D. The pressing member 17 is movably disposed on the outer wall member 162 along the pressing direction D with a gap therebetween. The water injection channel 18 passes through the top surface 11, the bottom surface 12 and the inner wall member 161. Specifically, the base body 1 has a receiving space and a cover 19. The cover 19 is disposed to cover the receiving space. The cover 19 has an opening 191. The opening 191 is connected to the water injection channel 18. Two guide grooves 131 are respectively disposed on the two extension arms 1 3, the two opposite ends of the pressing part 15 can be movably extended into the two guide grooves 131 respectively, the inner wall part 161 is cylindrical, and the maximum radial length of the inner wall part 161 along the pressing direction D is between 15mm and 22mm, the outer wall part 162 is sheet-shaped, and the clamping part 17 is screwed to the outer wall part 162 by a screw, and the distance between the clamping part 17 and the inner wall part 161 is adjusted by screwing the screw in or out.

The driving unit 2 has a gear 21, a gear 22 and an output shaft 23. The gear 21 is arranged along the pressing direction D and connected to the pressing portion 15, and the gear 21 is engaged with the gear 22 to rotate the gear 22 along the axial direction A. The output shaft 23 is connected to the rotation center of the gear 22 and extends from the wall inner member 161. Specifically, the gear 21 is movably arranged in one of the guide grooves 131 along the pressing direction D and adjacent to the top surface 11. The gear 22 is arranged in the accommodating space and adjacent to the top surface 11. The output shaft 23 is extended along the axial direction A.

The two elastic members 3 are connected to the base 1 and the pressing portion 15; specifically, the pressing portion 15 has two cylinders 151 protruding toward the top surface 11 and the bottom surface 12 at opposite ends, and the elastic member 3 is disposed in the guide groove 131, with one end of the elastic member 3 being sleeved on the cylinder 151 and the other end being tied to the base 1.

Each stirring element 4 is replaceably connected to the output shaft 23; specifically, the end of the output shaft 23 has an internal thread hole, and one end of each stirring element 4 is convexly provided with an external thread, and each stirring element 4 is replaceably connected to the output shaft 23 through the combination of the internal and external threads.

Please refer to the third, fourth and fifth figures. The manual stirrer for feeding empty needles of the present invention is used with a feeding empty needle 5 and held in a palm 6. The feeding empty needle 5 has an opening 51, a peripheral wall 52 and a receiving groove 53. The opening 51 is connected to the receiving groove 53, and the peripheral wall 52 surrounds the opening 51 and the receiving groove 53.

When using the present invention, the liquid food or medicine to be fed is placed in the empty feeding needle 5, and then the empty feeding needle 5 is combined with the base body 1 along the axial direction A, and the aforementioned stirring member 4 and the wall inner member 161 are extended into the receiving groove 53 through the opening 51, and the aforementioned stirring member 4 is pressed against a bottom 54 of the receiving groove 53, and the sleeve portion 16 is sleeved on the peripheral wall 52 at the opening 51, so that the wall inner member 161 is extended into the receiving groove 53 through the opening 51 until the peripheral wall 52 is pressed against the bottom surface 12 of the base body 1, and then the clamping member 17 is adjusted to press the empty feeding needle 5 between the wall inner member 161 and the clamping member 17.

Please refer to Figure 3A and Figure 4A. In addition to the embodiment, the fixing part 10A can be a truncated cone and elastic type. The fixing part 10A extends into the accommodating groove 53, and uses the tapered surface of the truncated cone to abut against the peripheral wall 52 and close the opening 51, so that the feeding needle 5 is temporarily combined with the seat 1A. The truncated cone and elastic fixing part 10A can be made of rubber material. Alternatively, the fixing part 10A can also be in the form of a strap. It is used to tighten the peripheral wall 52 at the opening 51 of the feeding needle 5. This belongs to the known technology and is not shown in the figure.

Please refer to the second, fifth, sixth and seventh figures, hold the base 1 in the palm 6, make the gripping part 14 correspond to and press against the base of the palm 6, and make the palm 6 press against the gripping surface, and use the index finger or/and middle finger of the palm 6 to press against and press the pressing part 15, so that the pressing part 15 moves from a first position to a second position along the pressing direction D toward the gripping part 14 and deforms the elastic member 3 to store an elastic potential energy, and the pressing part 15 drives the gear 21 to move and drives the gear 22 to rotate, so that the stirring member 4 is driven by the output shaft 23 to rotate and stir.

Please refer to Figures 8 and 9. When the pressing part 15 is released, the elastic member 3 releases the elastic potential energy, so that the pressing part 15 moves from the second position back to the first position. The pressing part 15 drives the gear 21 to move and drives the gear 22 to rotate in the opposite direction, so that the aforementioned stirring member 4 is driven by the output shaft 23 to rotate in the opposite direction for stirring.

By reciprocatingly pressing the pressing part 15, the stirring element 4 can continuously stir the liquid food or medicine in the empty feeding needle 5, so that during feeding, the liquid food or medicine in the empty feeding needle 5 can smoothly move toward the outlet and flow into the nasogastric tube, orogastric tube or the tube body of the enterogastric stoma.

When the liquid food or medicine in the empty feeding needle 5 is too thick, clean water can be injected through the water injection channel 18 to dilute the liquid food or medicine in the empty feeding needle 5. When injecting water, there is no need to remove the seat 1 from the empty feeding needle 5, which is convenient for injecting water and stirring the liquid food or medicine in the empty feeding needle 5 at the same time.

Please refer to FIG. 10A and FIG. 10B. According to different capacities, for example, a feeding needle 5B with a larger diameter and a longer length, or a feeding needle 5A with a smaller diameter and a shorter length, in order to improve the flexibility of the present invention, the seat 1 can be fixed on the feeding needle 5A or the feeding needle 5B by adjusting the distance between the clamping member 17 and the inner wall member 161, and a retractable stirring member 4A can be selected. , when combined with a longer feeding needle 5B or a shorter feeding needle 5A, the retractable stirring member 4A can adapt to the depth of the receiving groove 53A or the receiving groove 53B, and the retractable stirring member 4A can reach the bottom 54A of the receiving groove 53A or the bottom 54B of the receiving groove 53B, and can accurately stir the liquid food or medicine in the feeding needle 5A or the feeding needle 5B.

Please refer to Figure 11A and Figure 11B. In another embodiment, a bendable stirring member 4B can also be used. When the bendable stirring member 4B is against the shorter empty feeding needle 5A, the stirring part of the bendable stirring member 4B can change its shape adaptively to adapt to the shorter empty feeding needle 5A, thereby accurately stirring the liquid food or medicine in the empty feeding needle 5A or the empty feeding needle 5B.

Please refer to Figure 12A and Figure 12B. In another embodiment, a long stirring member 4C or a short stirring member 4D can be selected depending on the matching feeding needle 5A or feeding needle 5B, so that the longer long stirring member 4C is used with the longer feeding needle 5B, and the shorter short stirring member 4D is used with the shorter feeding needle 5A. In this way, the liquid food or medicine in the feeding needle 5A or the feeding needle 5B can be stirred accurately.

Please refer to FIG. 13. When the present invention is used to stir the liquid food or medicine in the empty feeding needle 5, in order to prevent the unevenly stirred liquid food or medicine from flowing into the patient's body, the liquid food or medicine from continuously flowing into the patient's body and causing the patient to feel uncomfortable, or the liquid food or medicine has completely flowed into the patient's body, but the empty feeding needle 5 is not removed and air continues to enter the patient's body and causes the patient to feel uncomfortable, a control valve 7 is connected to the outlet of the empty feeding needle 5. The control valve 7 has a control valve inlet 71, a control valve outlet 72, and a control valve inlet 73. The control valve inlet 71 is connected to the control valve outlet 72, and the control knob 73 is arranged between the control valve inlet 71 and the control valve outlet 72. The control valve outlet 72 is further connected to a nasogastric tube, an orogastric tube or a tube inserted into a transenterogastric stoma. The flow rate of the fluid food or medicine flowing through the control valve 7 is adjusted by the control knob 73, or the control valve 7 can be completely closed by the control knob 73 to stop the fluid food or medicine from entering the patient's body. Thus, when the control valve 7 is completely closed, the operation of pouring food or medicine into the empty feeding needle 5 before feeding and the stirring operation can be carried out smoothly; when the control valve 7 is partially opened, feeding can be carried out at a smaller flow rate to reduce the patient's vomiting or air entering the patient's body during feeding; when the control valve 7 is fully opened, feeding can be carried out at a normal flow rate. With the control valve 7, the feeding process will be more in line with the needs of care.

The current standard feeding needles 5 commonly have the following diameter (cm) * length (cm): 3*16, 5*12, 4*11, 3*14, 6*12, etc. The opening 51 size of each feeding needle 5 is different and the depth of the receiving groove 53 of the feeding needle 5 is also different, but the present invention can be applied to each of the above feeding needles 5.

Combined with the description of the above embodiments, the operation, use and effects of the present invention can be fully understood. However, the above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of implementation of the present invention. In other words, simple equivalent changes and modifications made according to the scope of the patent application and the content of the invention description are all within the scope of the present invention.

1: Seat

10:Fixed part

11: Top

12: Bottom

13: Extension arm

15: Pressing part

16: Fitting part

161: Wall interior

162: Wall exterior parts

17: Clamping parts

18: Water injection channel

4: Stirring parts

A: Axial

D: Press direction

Claims (12)

A manual mixer for feeding an empty needle is used with a feeding empty needle and is held in a palm. The feeding empty needle has an opening, a peripheral wall and a receiving groove. The manual mixer for feeding an empty needle comprises: a base body, comprising a pressing part and a fixing part, the pressing part being reciprocally movable along a pressing direction on the base body; a driving unit, which is arranged on the base body and connected to the pressing part, and the driving unit comprises an output shaft, which extends from the base body along an axial direction; a stirring member, which is connected to the output shaft. , the stirring element includes a blade, and the stirring element changes its length in the axial direction by any of the following methods: replacement, extension and deformation; the aforementioned fixing part fixes the peripheral wall at the opening, so that the base is fixed at the position of the opening of the empty feeding needle, and the stirring element extends to a bottom of the accommodating groove by changing its length in the axial direction; the operator holds the base with the palm of the hand, and an index finger of the palm is located at the pressing part, and the index finger reciprocates the pressing part along the pressing direction, and the driving unit links the blade to reciprocate and rotate at the bottom. A manual stirrer for feeding an empty needle as described in claim 1, wherein the base has a top surface and a bottom surface located on two opposite sides along the axis, and a water injection channel is provided on the base and passes through the top surface, the bottom surface and the fixing portion. As described in claim 1, the manual mixer for feeding an empty needle, wherein the base has a top surface and a bottom surface located on two opposite sides along the axial direction, the base has two protruding extension arms, the two extension arms are respectively disposed adjacent to the top surface and the bottom surface, two guide grooves are respectively disposed on the two extension arms, and the opposite ends of the pressing portion extend into the two guide grooves respectively. As described in claim 3, the manual stirrer for feeding an empty needle has two elastic members disposed in the guide groove, and the two opposite ends of each elastic member are connected to the base and the pressing portion, respectively. A manual stirrer for feeding an empty needle as described in claim 1, wherein the fixing portion includes a sleeve portion and a clamping member, the sleeve portion extends from the base along the axial direction, the sleeve portion includes an inner wall member and an outer wall member, the inner wall member and the outer wall member are separated by a gap along the pressing direction, and the clamping member is movably disposed on the outer wall member along the pressing direction. A manual stirrer for feeding an empty needle as described in claim 1, wherein the fixing portion is in the shape of a truncated cone, the fixing portion extends from the base along the axis, and the material of the fixing portion is elastic. A manual stirrer for feeding an empty needle as described in claim 5, wherein the radial length of the inner wall part along the pressing direction is between 15 mm and 22 mm. As described in claim 1, the manual mixer for feeding an empty needle, wherein the base has a recessed gripping portion, the gripping portion has a gripping surface, the gripping surface and the pressing portion are located on opposite sides of the base along the pressing direction, and the gripping portion is provided at a position corresponding to the base of the palm. A manual stirrer for feeding an empty needle as described in claim 1, wherein the stirring member has a telescopic portion and a stirring portion, and the stirring portion is connected to the telescopic portion. A manual stirrer for feeding an empty needle as described in claim 1, wherein the stirring element has a stirring portion, and the material of the stirring portion is flexible. A manual stirrer for feeding an empty needle as described in claim 1, wherein there are at least two stirring elements, each of which has a different length, and each stirring element can be connected to the output shaft interchangeably. A manual mixer for feeding an empty needle as described in claim 1, wherein there is a control valve, the control valve has a control valve inlet, a control valve outlet and a control knob, the control valve inlet is connected to the control valve outlet, the control knob is arranged between the control valve inlet and the control valve outlet, the feeding empty needle has an outlet, and the outlet is connected to the control valve inlet.

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