Drug delivery device for tumor treatment

Abstract

The utility model provides a tumor treatment dosing device which comprises a syringe, the syringe is provided with a syringe tube, an injection tube is arranged at one end of the syringe tube, a piston push rod is arranged in the injection tube, two pull plates are symmetrically arranged at the end, away from the injection tube, of the syringe tube, and the piston push rod is arranged in the piston push rod. A push plate is fixedly arranged at the end, away from the injection tube, of the piston push rod, a ball head is arranged at the end of the injection tube, liquid outlet holes communicated with the injection tube are formed in the periphery of the ball head, and a depth limiting mechanism is arranged on the injection tube; according to the utility model, liquid medicine is sucked through the injector, then the ball head is inserted into a certain depth from the anus of a patient, and the insertion depth can be controlled through the limiting effect of the depth limiting mechanism, so that the proper insertion depth of the ball head is ensured, the risk of intestinal injury is reduced, and the medicine can directly reach the focus.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tumor treatment technical field, concretely relates to a tumor treatment dosing device. BACKGROUND

[0002] Rectal tumor can cause anal internal distending pain and other uncomfortable symptoms, in order to alleviate the uncomfortable symptoms, usually need to be guided by a doctor to give medicine to the rectum through the anus, to alleviate the uncomfortable symptoms.

[0003] In the prior art, the Chinese utility model patent document with the authorization announcement number CN221579403U discloses an anus dosing device, which enters the anal canal through the extrusion mode, and the depth is appropriate, but the insertion depth is still not easy to control, and it is easy to insert too deep or too shallow, and if the insertion depth is too deep, the damage risk is increased, and if the insertion depth is too deep or too shallow, the medicine cannot reach the lesion directly, which affects the treatment effect.

[0004] Therefore, it is necessary to design a tumor treatment dosing device capable of controlling the insertion depth, reducing the intestinal damage risk and facilitating the medicine to reach the lesion directly to solve the technical problems existing at present. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides a tumor treatment dosing device capable of controlling the insertion depth, reducing the intestinal damage risk and facilitating the medicine to reach the lesion directly.

[0006] The technical scheme of the utility model is as follows: a tumor treatment dosing device, comprising a syringe, the syringe has a syringe barrel, one end of the syringe barrel is provided with a syringe tube, the inside of the syringe tube is provided with a piston push rod, the end of the syringe barrel away from the syringe tube is symmetrically provided with two pull plates, the end of the piston push rod away from the syringe tube is fixedly provided with a push plate, the end of the syringe tube has a ball head, the periphery of the ball head is provided with a liquid outlet hole in communication with the syringe tube, and a depth limiting mechanism is arranged on the syringe tube.

[0007] The locking assembly has a groove uniformly formed in the end of the sleeve, the end of the sleeve near the groove has a taper, and the outside of the sleeve is threadedly connected with a locking nut.

[0008] The side of the limiting plate away from the sleeve is fixedly provided with an arc-shaped absorbing layer, and the absorbing layer is a medical sponge fixedly arranged on one side of the limiting plate.

[0009] The push plate is provided with an extension plate corresponding to one of the pull plates, the extension plate is an integral structure with the push plate, and a piston limiting mechanism is arranged between the extension plate and the pull plate.

[0010] The piston limiting mechanism is provided with a limiting screw fixed on the extension plate and close to the syringe, the axial direction of the limiting screw is parallel to the syringe, the pull plate is provided with a avoiding hole corresponding to the limiting screw, the limiting screw is sleeved in the avoiding hole, and a limiting nut is threadedly assembled on the limiting screw away from the extension plate.

[0011] The limiting screw is fixed with a stopper at an end away from the extension plate.

[0012] The beneficial effects of the present application are as follows:

[0013] (1) In the present application, the syringe is used to suck liquid medicine, then the ball head is inserted into the anus of a patient to a certain depth, the depth limiting mechanism is used to limit the insertion depth, the insertion depth of the ball head is moderate, the risk of intestinal injury is reduced, and the medicine can directly reach the lesion.

[0014] (2) The position of the limiting plate can be adjusted on the outside of the injection tube by releasing the locking assembly, the position of the limiting plate can be adjusted according to the actual required insertion depth during use, the treatment needs of different patients can be met, and the limiting plate and the injection tube can be locked by the locking assembly after adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure of the present application is shown in the figure Figure 1 .

[0016] Figure 2 The structure of the present application is shown in the figure Figure 1 .

[0017] Figure 3 The structure of the present application is shown in the figure Figure 2 .

[0018] Figure 4 The structure of the present application is shown in the figure Figure 3 . DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and beneficial effects of the present application more clear, the embodiments of the present application are described in detail below with reference to the drawings.

[0020] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely intended for description and is not as any limitation on the present application and its application or use. The present application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present application thorough and complete and to fully convey the scope of the present application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary and not as a limitation.

[0021] The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different parts. The words such as "include" or "contain" mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] As shown in Figures 1 to 4 The tumor treatment administration device comprises a syringe 1, the syringe 1 has a syringe barrel 11, one end of the syringe barrel 11 is provided with a syringe tube 3, the inside of the syringe tube 3 is provided with a piston push rod 12, two pull plates 14 are symmetrically arranged on the syringe barrel 11 away from the syringe tube 3, the piston push rod 12 is fixedly provided with a push plate 13 away from the syringe tube 3, the end of the syringe tube 3 has a ball head 5, the periphery of the ball head 5 is provided with a liquid outlet hole 51 in communication with the syringe tube 3, and a depth limiting mechanism 4 is arranged on the syringe tube 3; the depth limiting mechanism 4 has a sleeve 41 slidably sleeved outside the syringe tube 3, a limiting plate 44 is fixedly arranged on one end of the sleeve 41 close to the ball head 5, and a locking assembly for locking or releasing the sleeve 41 and the syringe tube 3 is arranged on the sleeve 41; in this embodiment, the syringe 1 sucks the medicine liquid, then the ball head 5 is inserted to a certain depth from the anus of the patient, the depth limiting mechanism 4 can control the insertion depth through the limiting action, the insertion depth of the ball head 5 is moderate, the risk of intestinal injury is reduced, and the medicine can directly reach the lesion; by releasing the locking assembly, the position of the limiting plate 44 can be adjusted outside the syringe tube 3, the position of the limiting plate 44 can be adjusted according to the actual required insertion depth during use, the treatment needs of different patients can be met, and after adjustment, the limiting plate 44 and the syringe tube 3 can be locked through the locking assembly.

[0023] In some embodiments, the locking assembly has a notch 43 uniformly formed on the end of the sleeve 41, the sleeve 41 has a taper on the end close to the notch 43, and the outer side of the sleeve 41 is threadedly connected with a locking nut 42. When the locking nut 42 is tightened, the sleeve 41 at the notch 43 is contracted inwardly, clamped on the outer side of the syringe 3, and the sleeve 41 and the syringe 3 are fixed. When the locking nut 42 is loosened, the sleeve 41 at the notch 43 is reset outwardly, the syringe 3 is released, and the sleeve 41 and the syringe 3 are released.

[0024] In some embodiments, the limiting plate 44 is fixedly provided with an arc-shaped absorbing layer 45 on the side away from the sleeve. The absorbing layer 45 can absorb the leaked liquid medicine or body fluid during the administration, so as to avoid pollution caused by dripping. Specifically, the absorbing layer 45 is a medical sponge fixedly arranged on one side of the limiting plate 44, which can absorb the leaked liquid medicine or body fluid during the administration.

[0025] In some embodiments, one side of the push plate 13 is provided with an extension plate 131 corresponding to one of the pull plates 14. The extension plate 131 and the push plate 13 are in an integral structure, and the extension plate 131 and the pull plate 14 are provided with a piston limiting mechanism 2. The piston limiting mechanism 2 can prevent the piston push rod 12 from being pulled out of the syringe 11 during the suction of the liquid medicine, and can limit the pulling-out length of the piston push rod 12, so as to control the amount of the suctioned liquid medicine without reading the scale on the syringe 11 during the suction of the liquid medicine.

[0026] In some embodiments, the piston limiting mechanism 2 has a limiting screw 21 fixedly arranged on the side of the extension plate 131 close to the syringe 11. The axial direction of the limiting screw 21 is parallel to the syringe 11. The pull plate 14 is provided with an avoiding hole 141 corresponding to the limiting screw 21. The limiting screw 21 is sleeved in the avoiding hole 141. The limiting nut 22 is threadedly assembled on the limiting screw 21 on the side of the pull plate 14 away from the extension plate 131. The blocking effect of the limiting nut 22 can prevent the limiting screw 21 from being pulled out of the avoiding hole 141, so as to prevent the piston push rod 12 from being pulled out of the syringe 11 during the suction of the liquid medicine. Before the suction of the liquid medicine, the piston push rod 12 is pulled to the target position according to the scale on the outer side of the syringe 11, the limiting nut 22 is adjusted to abut against the pull plate 14, the piston push rod 12 is reset, and then the liquid medicine is sucked. When the piston push rod 12 is pulled to the target position, the limiting nut 22 abuts against the pull plate 14, and the movement of the limiting screw 21 is limited, so as to control the amount of the suctioned liquid medicine.

[0027] In some embodiments, the limit screw 21 is fixedly provided with a stop block 23 at an end away from the epitaxial wafer 131, and the stop block 23 limits the limit nut 22 to avoid the limit nut 22 from falling off the limit screw 21.

[0028] The above is the preferred embodiment of the utility model, and the person skilled in the art should understand that the embodiment of the utility model is not limited by the above content, and any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the utility model should be an equivalent replacement mode, and all are included in the protection scope of the utility model.

Claims

1. A tumor treatment administration device, characterized by: The utility model provides an injection device, which comprises a syringe provided with a syringe barrel and a syringe tube arranged at one end of the syringe barrel, wherein the inside of the syringe tube is provided with a piston push rod, two pull plates are symmetrically arranged at the end of the syringe barrel away from the syringe tube, a push plate is fixedly arranged at the end of the piston push rod away from the syringe tube, the end of the syringe tube is provided with a ball head, a plurality of liquid outlet holes are arranged around the ball head and are in communication with the syringe tube, and a depth limiting mechanism is arranged on the syringe tube. The depth limiting mechanism comprises a sleeve slidably sleeved outside the syringe tube, a limiting plate is fixedly arranged at the end of the sleeve close to the ball head, and a locking assembly for locking or releasing the sleeve and the syringe tube is arranged on the sleeve.

2. The tumor therapy administration apparatus according to claim 1, wherein: The locking assembly comprises a notch uniformly arranged at the end of the sleeve, the end of the sleeve close to the notch is provided with a taper, and a locking nut is threadedly connected to the outside of the sleeve.

3. The tumor therapy administration apparatus according to claim 1, wherein: An arc-shaped absorbing layer is fixedly arranged on the side of the limiting plate away from the sleeve, and the absorbing layer is a medical sponge fixedly arranged on one side of the limiting plate.

4. The tumor therapy administration apparatus according to claim 3, wherein: One side of the push plate is provided with an extension plate corresponding to one pull plate, the extension plate and the push plate are in an integral structure, and a piston limiting mechanism is arranged between the extension plate and the pull plate.

5. The tumor treatment dosing device of claim 4, wherein: The piston limiting mechanism comprises a limiting screw rod fixedly arranged on the side of the extension plate close to the syringe barrel, the axial direction of the limiting screw rod is parallel to the syringe barrel, an avoiding hole corresponding to the limiting screw rod is arranged on the pull plate, the limiting screw rod is sleeved in the avoiding hole, and a limiting nut is threadedly assembled on the limiting screw rod on the side of the pull plate away from the extension plate. A stop block is fixedly arranged at the end of the limiting screw rod away from the extension plate.

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