Anorectal administration device for general surgery department

Abstract

The utility model relates to the technical field of medical instruments, and discloses a general surgery department anorectum dosing device which comprises a dosing cylinder, the outlet end of the dosing cylinder is fixedly connected with a dosing tube, and the dosing tube is fixedly connected with a first one-way valve used for guiding out liquid medicine in the dosing cylinder in a one-way mode. The top end of the dosing cylinder is provided with a medicine supply part used for guiding liquid medicine into the dosing cylinder, the inner side of the dosing cylinder is slidably connected with a piston, one side of the piston is fixedly connected with a push-pull rod, and the end, away from the piston, of the push-pull rod is provided with a pushing and pressing mechanism for driving the piston to slide back and forth through manual operation. The whole process is easy to operate and high in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically, to a drug delivery device for anorectal surgery. Background Art

[0002] Drug administration refers to the method of delivering drugs into the intestine through the anus, and then rapidly absorbed by the rectal mucosa into the general circulation to exert the drug effect to treat systemic or local diseases. For example, in the clinical treatment of anorectal diseases such as hemorrhoids, the usual treatment method is to use a drug administration tube connected to a syringe and administer the drug through the anus;

[0003] After searching, the Chinese patent publication number CN214912515U discloses "a drug delivery device for anorectal surgery in general surgery, comprising a drug delivery barrel, the inner wall of the drug delivery barrel is connected to a piston plate, the right center of the piston plate is fixedly connected to a piston rod, the right end of the piston rod and the outside of the drug delivery barrel are fixedly connected to a push plate, the left center of the inner wall of the drug delivery barrel is fixedly connected to an infusion tube, the left end of the infusion tube is connected to a sealing plug, the outer wall of the drug delivery barrel is fixedly connected to a protective sleeve, a resistance heating wire is installed inside the protective sleeve, and the top of the inner wall of the drug delivery barrel and near the infusion tube is fixedly connected to a liquid inlet tube";

[0004] However, in the implementation of the relevant technology, the following problems were found: during the drug administration process, the medical staff needs to hold the drug delivery barrel with one hand, and use the other hand to repeatedly push and pull the push plate to draw and administer the medicine. The amount of liquid medicine pushed in each time requires precise control by the medical staff's hands, which makes this operation difficult. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a general surgery anorectal medication device, which has the advantage of simple operation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a general surgery anorectal drug delivery device, comprising a drug delivery cylinder, the outlet end of the drug delivery cylinder is fixedly connected to a drug delivery tube, the drug delivery tube is fixedly connected to a one-way valve for unidirectionally discharging the medicine liquid inside the drug delivery cylinder, the top end of the drug delivery cylinder is provided with a medicine supply part for introducing the medicine liquid into the drug delivery cylinder, the inner side of the drug delivery cylinder is slidably connected to a piston, one side of the piston is fixedly connected to a push-pull rod, and the end of the push-pull rod away from the piston is provided with a pushing mechanism for driving the piston to slide back and forth through manual operation.

[0007] As a preferred technical solution of the utility model, the diameter of the piston is the same as the inner diameter of the dosing barrel, and the outer edge of the piston is slidably connected to the inner wall of the dosing barrel.

[0008] As a preferred technical solution of the utility model, the pushing mechanism includes a push-pull rod, which passes through the side wall of the dosing barrel and is slidably connected to the side wall of the dosing barrel, one end of the push-pull rod is fixedly connected to the piston, the other end of the push-pull rod is fixedly connected to a connecting plate, the bottom end of the connecting plate is fixedly connected to an adjusting rod capable of adjusting the length, the bottom of the dosing barrel is fixedly connected to a fixed plate, the middle part of the fixed plate is slidably connected to a connecting rod passing through the fixed plate, one end of the connecting rod is rotatably connected to the adjusting rod, and the other end of the connecting rod is fixedly connected to a pressure block.

[0009] As a preferred technical solution of the utility model, the pushing mechanism also includes a pressure spring, which is sleeved on the connecting rod, one end of the pressure spring abuts against the pressure block, and the other end of the pressure spring abuts against the fixed plate.

[0010] As a preferred technical solution of the utility model, a hand-held rod is fixedly connected to the top of the fixed plate, and the outer side of the hand-held rod is covered with an anti-slip sleeve.

[0011] As a preferred technical solution of the utility model, the adjusting rod includes an internal threaded sleeve, one end of the internal threaded sleeve is rotatably connected to the connecting rod, the other end of the internal threaded sleeve is threadedly connected to the external threaded rod, the end of the external threaded rod away from the internal threaded sleeve is fixedly connected to the connecting plate, and a plurality of knurled patterns are provided on the outer side of the internal threaded sleeve.

[0012] As a preferred technical solution of the utility model, the medicine supply component includes a medicine storage cartridge, the top of which is fixedly connected to a medicine inlet pipe, the bottom of which is fixedly connected to a medicine outlet pipe, and the bottom end of the medicine outlet pipe is connected to the interior of the medicine supply cartridge.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the piston can be driven to slide back and forth through the pushing mechanism. When the piston approaches the dosing tube, the pressure inside the dosing tube increases. At this time, the medicine liquid inside the dosing tube is introduced into the inside of the dosing tube, and then can be introduced into the patient's anus; when the piston moves away from the dosing tube, the pressure inside the dosing tube decreases. At this time, the medicine supply component introduces the medicine liquid into the inside of the dosing tube. In this cycle, medical staff can apply medicine to the patient's anus multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a drug delivery device for anorectal use in general surgery according to the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the pushing mechanism of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the adjustment rod of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the medicine supply component of the utility model.

[0019] In the figure: 1. drug delivery cartridge; 2. drug delivery tube; 3. one-way valve 1; 4. drug supply component; 41. drug storage cartridge; 42. drug inlet tube; 43. drug outlet tube; 44. one-way valve 2; 5. piston; 6. pushing mechanism; 61. push-pull rod; 62. connecting plate; 63. adjusting rod; 631. internal threaded sleeve; 632. external threaded rod; 633. knurling pattern; 64. fixing plate; 65. connecting rod; 66. pressure block; 67. pressure spring; 68. hand-held rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 5 As shown, the utility model provides a drug delivery device for anorectal surgery, including a drug delivery cylinder 1, an outlet end of the drug delivery cylinder 1 is fixedly connected to a drug delivery tube 2, a one-way valve 3 is fixedly connected to the drug delivery tube 2 for unidirectionally discharging the liquid medicine inside the drug delivery cylinder 1, a drug supply part 4 is provided at the top end of the drug delivery cylinder 1 for introducing the liquid medicine into the drug delivery cylinder 1, a piston 5 is slidably connected to the inner side of the drug delivery cylinder 1, the diameter of the piston 5 is the same as the inner diameter of the drug delivery cylinder 1, the outer edge of the piston 5 is slidably connected to the inner wall of the drug delivery cylinder 1, a push-pull rod 61 is fixedly connected to one side of the piston 5, and a pushing mechanism 6 is provided at the end of the push-pull rod 61 away from the piston 5 for driving the piston 5 to slide back and forth by manual operation.

[0022] The piston 5 can be driven to slide back and forth by the pushing mechanism 6. When the piston 5 approaches the dosing tube 2, the internal pressure of the dosing tube 1 increases. At this time, the medicine liquid inside the dosing tube 1 is introduced into the inside of the dosing tube 1, and then can be introduced into the patient's anus; when the piston 5 moves away from the dosing tube 2, the internal pressure of the dosing tube 1 decreases. At this time, the medicine supply part 4 introduces the medicine liquid into the inside of the dosing tube 1. In this way, the cycle is repeated, and medical staff can apply medicine to the patient's anus multiple times.

[0023] Among them, the pushing mechanism 6 includes a push-pull rod 61, which passes through the side wall of the dosing barrel 1 and is slidably connected to the side wall of the dosing barrel 1, one end of the push-pull rod 61 is fixedly connected to the piston 5, and the other end of the push-pull rod 61 is fixedly connected to a connecting plate 62, and the bottom end of the connecting plate 62 is fixedly connected to an adjusting rod 63 capable of adjusting the length, and the bottom of the dosing barrel 1 is fixedly connected to a fixing plate 64, and the middle part of the fixing plate 64 is slidably connected to a connecting rod 65 that passes through the fixing plate 64, one end of the connecting rod 65 is rotatably connected to the adjusting rod 63, and the other end of the connecting rod 65 is fixedly connected to a pressing block 66, and a pressure spring 67 is sleeved on the connecting rod 65, one end of the pressure spring 67 is in contact with the pressing block 66, and the other end of the pressure spring 67 is in contact with the fixing plate 64, and the top of the fixing plate 64 is fixedly connected to a hand-held rod 68, and the outer side of the hand-held rod 68 is covered with an anti-slip sleeve.

[0024] The adjusting rod 63 includes an internal thread sleeve 631, one end of which is rotatably connected to the connecting rod 65, the other end of which is threadedly connected to an external threaded rod 632, one end of which is away from the internal thread sleeve 631 and fixedly connected to the connecting plate 62, and a plurality of knurling patterns 633 are provided on the outer side of the internal thread sleeve 631. By rotating the internal thread sleeve 631, the internal thread sleeve 631 can rotate relative to the external threaded rod 632, which makes the external threaded rod 632 and the thread sleeve 631 change relative position, so that the length of the adjusting rod 63 can be adjusted.

[0025] Among them, the medicine supply component 4 includes a medicine storage cylinder 41, the top of the medicine storage cylinder 41 is fixedly connected to a medicine inlet pipe 42, the bottom of the medicine storage cylinder 41 is fixedly connected to a medicine outlet pipe 43, the bottom end of the medicine outlet pipe 43 is connected to the interior of the dosing cylinder 1, and the medicine outlet pipe 43 is fixedly connected to a one-way valve 2 (44) for one-wayly introducing the medicine liquid into the dosing cylinder 1.

[0026] The working principle and use process of the utility model are as follows: first, the medical staff can grasp the hand-held rod 68 to keep the drug storage cylinder 41 stable, and then apply pressure to the pressure block 66, which makes the connecting rod 65 drive the adjusting rod 63 to translate. At this time, the pressure spring 67 is compressed to accumulate potential energy, which makes the connecting plate 62 apply a pulling force to the push-pull rod 61, so that the piston 5 is away from the dosing tube 2. At this time, the internal pressure of the dosing cylinder 1 is reduced, and the drug supply part 4 introduces the medicine liquid into the dosing cylinder 1; then release the pressure block 6, and the pressure spring 67 releases the potential energy, so that the pressure block 6 moves in the opposite direction, and the push-pull rod 61 brings the piston 5 closer to the dosing tube 2. At this time, the internal pressure of the dosing cylinder 1 is increased, and the medicine liquid inside the dosing cylinder 1 is introduced into the dosing cylinder 1, so that it can be introduced into the patient's anus to achieve drug administration. In addition, it is more convenient to control the single dosage by operating the pressure block 6. The whole process is simple to operate and has high stability.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drug delivery device for anorectal use in general surgery, comprising a drug delivery barrel (1), the outlet end of the drug delivery barrel (1) being fixedly connected to a drug delivery tube (2), the drug delivery tube (2) being fixedly connected to a one-way valve (3) for unidirectionally draining the drug solution inside the drug delivery barrel (1), the top end of the drug delivery barrel (1) being provided with a drug supply member (4) for introducing the drug solution into the drug delivery barrel (1), characterized in that: A piston (5) is slidably connected to the inner side of the drug delivery barrel (1), a push-pull rod (61) is fixedly connected to one side of the piston (5), and a pushing mechanism (6) is provided at one end of the push-pull rod (61) away from the piston (5) for driving the piston (5) to slide back and forth through manual operation.

2. A general surgery anorectal medication device according to claim 1, characterized in that: The diameter of the piston (5) is the same as the inner diameter of the dosing barrel (1), and the outer edge of the piston (5) is slidably connected to the inner wall of the dosing barrel (1).

3. A general surgery anorectal medication device according to claim 1, characterized in that: The pushing mechanism (6) comprises a push-pull rod (61), the push-pull rod (61) passes through the side wall of the dosing barrel (1), and the push-pull rod (61) is slidably connected to the side wall of the dosing barrel (1), one end of the push-pull rod (61) is fixedly connected to the piston (5), the other end of the push-pull rod (61) is fixedly connected to a connecting plate (62), the bottom end of the connecting plate (62) is fixedly connected to an adjusting rod (63) capable of adjusting the length, the bottom of the dosing barrel (1) is fixedly connected to a fixing plate (64), the middle part of the fixing plate (64) is slidably connected to a connecting rod (65) passing through the fixing plate (64), one end of the connecting rod (65) is rotatably connected to the adjusting rod (63), and the other end of the connecting rod (65) is fixedly connected to a pressing block (66).

4. A general surgery anorectal medication device according to claim 3, characterized in that: The pushing mechanism (6) further comprises a pressure spring (67), wherein the pressure spring (67) is sleeved on the connecting rod (65), one end of the pressure spring (67) abuts against the pressure block (66), and the other end of the pressure spring (67) abuts against the fixing plate (64).

5. A general surgery anorectal medication device according to claim 4, characterized in that: A hand-held rod (68) is fixedly connected to the top of the fixing plate (64), and the outer side of the hand-held rod (68) is covered with an anti-slip sleeve.

6. A general surgery anorectal medication device according to claim 5, characterized in that: The adjusting rod (63) comprises an internal threaded sleeve (631), one end of the internal threaded sleeve (631) is rotatably connected to the connecting rod (65), the other end of the internal threaded sleeve (631) is threadedly connected to an external threaded rod (632), one end of the external threaded rod (632) away from the internal threaded sleeve (631) is fixedly connected to the connecting plate (62), and a plurality of knurled patterns (633) are provided on the outer side of the internal threaded sleeve (631).

7. A general surgery anorectal medication device according to claim 1, characterized in that: The medicine supply member (4) comprises a medicine storage barrel (41), the top of which is fixedly connected to a medicine inlet pipe (42), the bottom of which is fixedly connected to a medicine outlet pipe (43), and the bottom end of which is in communication with the interior of the medicine supply barrel (1).

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