CN218923544U - Intrauterine drug sustained-release device for treating adenomyosis - Google Patents

Abstract

The utility model discloses an intrauterine drug sustained-release device for treating adenomyosis, which comprises a sustained-release mechanism and a taking-out mechanism, wherein the sustained-release mechanism is movably connected with the taking-out mechanism, the sustained-release mechanism comprises an insertion tube, an anti-drop component, a bottom sleeve and a sustained-release drug, the lower end of the side wall of the insertion tube is provided with a drug storage groove in an upward forming way, the outer wall of the drug storage groove is provided with a plurality of through holes, the sustained-release drug is arranged in the drug storage groove, the bottom sleeve is arranged at the lower end of the insertion tube, and the anti-drop component is rotatably arranged at the upper end of the bottom sleeve; the utility model can more conveniently send the slow release mechanism into or take the slow release mechanism out of the patient body by matching the slow release mechanism and the taking mechanism.

Description

Intrauterine drug sustained-release device for treating adenomyosis

Technical Field

The utility model relates to the field of ventilation of clean laboratories, in particular to an intrauterine drug sustained-release device for treating adenomyosis.

Background

Adenomyosis is a diffuse or localized lesion formed by invasion of the endometrial gland and the stroma into the myometrium, and during menstrual periods, bleeding from these ectopic intimal tissues directly enters the myometrium, causing pain to the patient; as blood accumulates, the surrounding muscle swells and forms fibrous tissue. This swelling is located in the myometrium, called adenomyoma, because it is felt much like a myoma and is often confused with uterine myomas when examined ultrasonically. The symptoms of adenomyosis may be mild or completely asymptomatic, and patients with very heavy symptoms may be caused by severe bleeding and severe dysmenorrhea during menstruation. Currently, the treatment of this condition is mainly carried out by the following methods: surgical excision of uterus, conservative surgical treatment and traditional Chinese medicine conditioning treatment, and the three treatment methods have advantages and disadvantages respectively. With the gradual younger patients, most patients adopt an intrauterine slow-release system for placing levonorgestrel in uterus for long-term continuous treatment, at present, a uterine contraceptive device containing levonorgestrel is generally placed in the uterus of the patients, but the general uterine contraceptive device is easy to slip due to longer placement time, and is difficult to take out after long-term placement.

Disclosure of Invention

The utility model aims to solve the defects and provide an intrauterine drug sustained-release device for treating adenomyosis, which can be placed in the uterus of a patient for a long time to release hormone or drugs such as levonorgestrel, and is not easy to slip after being placed for a long time, and is convenient to put in and take out;

in order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an intrauterine drug sustained release device for treating adenomyosis comprises a sustained release mechanism and a taking and delivering mechanism, wherein the sustained release mechanism is movably connected with the taking and delivering mechanism; the slow release mechanism comprises a medicine release sleeve and an anti-drop component, and the anti-drop component is rotationally arranged in the medicine release sleeve;

the anti-drop assembly comprises a bidirectional screw rod, an upper sliding block, a lower sliding block, a plurality of upper limiting rods and a plurality of lower limiting rods, wherein a rotary connecting boss is arranged at the middle lower section of the bidirectional screw rod, the rotary connecting boss is in rotary connection with the drug release sleeve, the upper sliding block and the lower sliding block are sleeved on the bidirectional screw rod, the rotary connecting boss is positioned between the upper sliding block and the lower sliding block, the plurality of upper limiting rods are uniformly arranged at the upper end of the upper sliding block at intervals along the circumferential direction, and the plurality of lower limiting rods are uniformly arranged at the lower end of the lower sliding block at intervals along the circumferential direction;

the lower end of the bidirectional screw rod is provided with an adjusting boss which is movably connected with the taking and conveying mechanism.

Preferably, the drug release sleeve comprises an insertion tube, a bottom sleeve and a drug release agent, wherein the lower end of the side wall of the insertion tube is provided with a drug storage groove in an upward forming way, the outer wall of the drug storage groove is provided with a plurality of through holes, the drug release agent is arranged in the drug storage groove, the bottom sleeve is arranged at the lower end of the insertion tube, and the bottom sleeve covers the opening end of the drug storage groove; the rotary connecting boss is rotationally arranged at the upper end of the bottom sleeve, the upper sliding block is positioned in the insertion tube, and the lower sliding block is positioned in the bottom sleeve.

Preferably, the inner walls of the insertion tube and the bottom sleeve are provided with limiting bosses along the circumferential direction, the upper sliding block is in sliding fit with the inner wall of the insertion tube, the upper sliding block is provided with a first limiting groove matched with the upper limiting boss of the insertion tube, the lower sliding block is in sliding fit with the inner wall of the bottom sleeve, and the lower sliding block is provided with a second limiting groove matched with the upper limiting boss of the bottom sleeve.

Preferably, when the upper sliding block is propped against the rotary connecting boss, the upper end of the upper limiting rod is flush with the upper end of the insertion tube; when the lower slider is propped against the rotating connection boss, the lower end of the lower limiting rod is flush with the lower end of the bottom sleeve.

Preferably, the lower end of the bottom sleeve is provided with a connecting sleeve, and the lower end of the connecting sleeve is provided with a hexagonal annular boss.

Preferably, the taking and conveying mechanism comprises a pushing pipe and an adjusting rod, the adjusting rod is rotatably sleeved in the pushing pipe, a locking sleeve matched with the annular boss is arranged at one end of the pushing pipe, and an adjusting sleeve matched with the adjusting boss is arranged at one end of the adjusting rod, which is close to the locking sleeve.

Preferably, the annular boss is made of ferromagnetic stainless steel; the locking sleeve is made of magnets.

Preferably, each upper limit rod and each lower limit rod are made of elastic materials, each upper limit rod comprises four sections, and each lower limit rod is provided with three sections.

Preferably, the upper end of the bidirectional screw rod is provided with a silica gel ball top.

Preferably, a length of the bidirectional screw rod located at the upper end of the rotary connecting boss is L, and a length of the bidirectional screw rod located at the lower end of the rotary connecting boss is M, where l=3m.

Compared with the prior art, the utility model has the following beneficial effects:

according to the technical scheme, the drug release sleeve and the anti-drop component are matched, and a small amount of progesterone is continuously and constantly released in the uterus of a patient for a long time, so that the growth of endometrium is effectively inhibited, the menstrual flow is effectively controlled, the menstrual bleeding time is shortened, dysmenorrhea is relieved, and the environment in the cervix, the uterine cavity and the endometrium are in a state unsuitable for conception, so that a very reliable contraceptive effect is obtained, and the adenomyosis is effectively treated;

according to the technical scheme, the plurality of upper limit rods in the anti-falling assembly are matched with the plurality of lower limit rods, so that the drug release sleeve is stably positioned in the uterus of a patient, and the drug release sleeve is prevented from falling out of the uterus of the patient, so that the treatment effect is prevented from being influenced;

according to the technical scheme, the slow release mechanism is conveniently conveyed into a patient through the cooperation between the taking and conveying mechanism and the slow release mechanism, and the upper limit rods and the lower limit rods are opened, so that the medicine release sleeve is limited in the uterus of the patient, and the upper limit rods and the lower limit rods are conveniently folded when the medicine release sleeve needs to be taken out.

Drawings

FIG. 1 is an axial structural view of the present utility model in a collapsed state;

FIG. 2 is an exploded view of the axial structure of the present utility model in its collapsed condition;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a front view of the present utility model in a collapsed state;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

FIG. 7 is an axial structural view of the present utility model in its deployed state;

FIG. 8 is an axial structural view of the sustained release mechanism in the deployed state of the present utility model;

Detailed Description

The following describes the technical solution in the embodiment of the present utility model in detail with reference to fig. 1 to 8 in the embodiment of the present utility model.

It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, removably connected, or integrally connected, for example; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with the interior of two elements, the specific meaning of the terms in this utility model will be understood by those of ordinary skill in the art.

Example 1

As shown in fig. 1, an intrauterine drug sustained release device for treating adenomyosis comprises a sustained release mechanism and a taking and delivering mechanism, wherein the sustained release mechanism is movably connected with the taking and delivering mechanism; the slow release mechanism comprises a medicine release sleeve and an anti-drop component, and the anti-drop component is rotationally arranged in the medicine release sleeve;

as shown in fig. 3, the anti-drop assembly comprises a bidirectional screw rod 1, an upper sliding block 2, a lower sliding block 3, a plurality of upper limit rods 4 and a plurality of lower limit rods 5, wherein a rotary connecting boss 1a is arranged at the middle lower section of the bidirectional screw rod 1, and threads positioned at two sides of the rotary connecting boss 1a on the bidirectional screw rod 1 are opposite in rotation direction;

the rotary connection boss 1a is rotationally connected with the drug release sleeve, the upper slide block 2 and the lower slide block 3 are sleeved on the bidirectional screw rod 1, and the upper slide block 2 and the lower slide block 3 are in threaded fit with the bidirectional screw rod 1; the rotary connecting boss 1a is positioned between the upper slide block 2 and the lower slide block 3, so that when the bidirectional screw rod 1 rotates, the sliding directions of the upper slide block 2 and the lower slide block 3 are opposite;

the upper limit rods 4 are uniformly arranged at intervals on the upper end of the upper sliding block 2 along the circumferential direction, and the lower limit rods 5 are uniformly arranged at intervals on the lower end of the lower sliding block 3 along the circumferential direction;

an adjusting boss 6 is arranged at the lower end of the bidirectional screw rod 1, and the adjusting boss 6 is movably connected with the taking and conveying mechanism; the adjusting boss 6 is driven to rotate by the taking and conveying mechanism, so that the bidirectional screw rod 1 is driven to rotate.

As shown in fig. 3 and 6, the drug release sleeve comprises an insertion tube 7, a bottom sleeve 8 and a drug release agent 9, wherein the lower end of the side wall of the insertion tube 7 is provided with a drug storage groove 7a in an upward forming manner, the outer wall of the drug storage groove 7a is provided with a plurality of through holes 7b, the drug release agent 9 is arranged in the drug storage groove 7a, the bottom sleeve 8 is arranged at the lower end of the insertion tube 7 in a threaded connection manner, and the bottom sleeve 8 covers the opening end of the drug storage groove 7a, so that the opening end of the drug storage groove 7a is closed; the rotary connecting boss 1a is rotatably arranged at the upper end of the bottom sleeve 8, the upper sliding block 2 is positioned in the insertion tube 7, and the lower sliding block 3 is positioned in the bottom sleeve 8.

The inner walls of the insertion tube 7 and the bottom sleeve 8 are respectively provided with a limit boss 15 along the circumferential direction, the upper slide block 2 is in sliding fit with the inner wall of the insertion tube 7, the upper slide block 2 is provided with a first limit groove 2a matched with the limit boss 15 on the insertion tube 7, the first limit groove 2a is matched with the limit boss 15 on the insertion tube 7 to limit the rotation of the upper slide block 2 along the circumferential direction, and when the bidirectional screw rod 1 rotates, the upper slide block 2 can only axially slide along the bidirectional screw rod 1; the lower slide block 3 is in sliding fit with the inner wall of the bottom sleeve 8, a second limiting groove 3a matched with a limiting boss 15 on the bottom sleeve 8 is arranged on the lower slide block 3, the second limiting groove 3a is matched with the limiting boss 15 on the bottom sleeve 8, and the rotation of the lower slide block 3 in the circumferential direction is limited, so that when the bidirectional screw rod 1 rotates, the lower slide block 3 can only axially slide along the bidirectional screw rod 1;

when the upper sliding block 2 is propped against the rotary connecting boss 1a, the upper end of the upper limit rod 4 is flush with the upper end of the insertion tube 7; when the lower slider 3 is propped against the rotary connection boss 1a, the lower end of the lower limit rod 5 is flush with the lower end of the bottom sleeve 8, and the upper limit rod 4 and the lower limit rod 5 can be completely accommodated into the drug release sleeve, so that the insertion and the removal are convenient.

As shown in fig. 3, the lower end of the bottom sleeve 8 is provided with a connecting sleeve 10 in threaded connection, and the lower end of the connecting sleeve 10 is provided with a hexagonal annular boss 10a;

the taking and conveying mechanism comprises a pushing pipe 11 and an adjusting rod 12, the adjusting rod 12 is rotatably sleeved in the pushing pipe 11, one end of the pushing pipe 11 is provided with a locking sleeve 13 matched with the annular boss 10a, and one end of the adjusting rod 12, which is close to the locking sleeve 13, is provided with an adjusting sleeve 14 matched with the adjusting boss 6;

graduations can be arranged on the outer wall of the pushing tube 11.

The locking sleeve 13 is sleeved on the annular boss 10a, the adjusting sleeve 14 is sleeved on the adjusting boss 6, and the bidirectional screw rod 1 can be driven to rotate by rotating the adjusting rod 12.

The annular boss 10a is made of ferromagnetic stainless steel; the locking sleeve 13 is made of a magnet; the locking sleeve 13 is magnetically connected with the annular boss 10a, so that the taking-out and delivering mechanism is conveniently in butt joint with the slow-release mechanism when the slow-release mechanism is taken out.

As shown in fig. 7 and 8, each of the upper and lower limit levers 4 and 5 is made of an elastic material, each of the upper limit levers 4 includes four segments, and each of the lower limit levers 5 has three segments.

As shown in fig. 3, the upper end of the bidirectional screw rod 1 is provided with a silica gel ball top 16; facilitating insertion of the sustained release mechanism into the patient.

As shown in fig. 3, a length of the two-way screw rod 1 at the upper end of the rotating connection boss 1a is L, a length of the two-way screw rod 1 at the lower end of the rotating connection boss 1a is M, l=3m, and according to the length relationship between the two, the pitches of the two threads on the two-way screw rod 1 can be correspondingly adjusted, so that the upper limit rod 4 and the lower limit rod 5 can be synchronously unfolded and folded.

The course of motion of this embodiment: when the slow release mechanism is required to be sent into the uterus of a patient, the locking sleeve 13 is sleeved on the annular boss 10a, the adjusting sleeve 14 is sleeved on the adjusting boss 6, the slow release mechanism is sleeved on the taking mechanism, the slow release mechanism is inserted into the uterus of the patient, after the silica gel ball top 16 abuts against the uterine wall of the patient, the adjusting rod 12 is rotated, when the bidirectional screw 1 is driven to rotate, the upper slide block 2 and the lower slide block 3 synchronously slide, the upper limit rods 4 are gradually separated from the insertion tube 7, the plurality of upper limit rods 4 gradually lose the constraint of the insertion tube 7 and expand radially outwards along the upper slide block 2, the lower limit rods 5 are gradually separated from the bottom sleeve 8, the plurality of lower limit rods 5 gradually lose the constraint of the bottom sleeve 8 and expand radially outwards along the lower slide block 3, after the upper slide block 2 and the lower slide block 3 cannot slide any more, the plurality of upper limit rods 4 and the lower limit rods 5 are completely unfolded, the tail ends of the upper limit rods 4 abut against the uterine wall of the patient, and the lower limit rods 5 abut against the uterine wall of the uterus of the patient near the uterine opening; pulling out the taking-out and delivering mechanism;

when the slow release mechanism needs to be taken out, the push tube 11 is slowly pushed into the uterus of a patient, the locking sleeve 13 is close to the annular boss 10a under the B ultrasonic image and is magnetically connected with the annular boss through the locking sleeve, the adjusting sleeve 14 is sleeved on the adjusting boss 6 by the rotating adjusting rod 12, the bidirectional screw rod 1 can be driven to rotate by rotating the adjusting rod 12, so that the upper sliding block 2 and the lower sliding block 3 synchronously slide, the upper limiting rod 4 is driven to be gradually retracted into the insertion tube 7, the lower limiting rod 5 is gradually retracted into the bottom sleeve 8, the upper sliding block 2 and the lower sliding block 3 synchronously abut against the rotating connecting boss 1a, the upper limiting rod 4 and the lower limiting rod 5 are completely retracted into the drug release sleeve, the push tube 11 is slowly pulled out, the slow release mechanism is synchronously taken out from the uterus of the patient under the magnetic drive, the vagina of the patient is supported by the push tube 11, and therefore the resistance to the slow release mechanism is small, and medical staff can directly pull the slow release mechanism out by hand after the push tube 11 leaves the vagina of the patient.

The above embodiments are only for illustrating the technical idea of the present utility model, and the protection scope of the present utility model is not limited thereto, and any modification made on the basis of the technical scheme according to the technical idea of the present utility model falls within the protection scope of the present utility model.

Claims (10)

1. An intrauterine drug delivery device for the treatment of adenomyosis, characterized in that: comprises a slow release mechanism and a fetching mechanism, wherein the slow release mechanism is movably connected with the fetching mechanism; the slow release mechanism comprises a medicine release sleeve and an anti-drop component, and the anti-drop component is rotationally arranged in the medicine release sleeve;

the anti-drop assembly comprises a bidirectional screw rod (1), an upper sliding block (2), a lower sliding block (3), a plurality of upper limiting rods (4) and a plurality of lower limiting rods (5), wherein a rotating connection boss (1 a) is arranged at the middle lower section of the bidirectional screw rod (1), the rotating connection boss (1 a) is connected with a drug release sleeve in a rotating mode, the upper sliding block (2) and the lower sliding block (3) are sleeved on the bidirectional screw rod (1), the rotating connection boss (1 a) is located between the upper sliding block (2) and the lower sliding block (3), the plurality of upper limiting rods (4) are uniformly arranged at the upper end of the upper sliding block (2) at intervals along the circumferential direction, and the plurality of lower limiting rods (5) are uniformly arranged at the lower end of the lower sliding block (3) at intervals along the circumferential direction;

the lower end of the bidirectional screw rod (1) is provided with an adjusting boss (6), and the adjusting boss (6) is movably connected with the taking and conveying mechanism.

2. An intrauterine drug delivery device for the treatment of uterine fibroid according to claim 1, characterized in that: the drug release sleeve comprises an insertion tube (7), a bottom sleeve (8) and a drug release releasing agent (9), wherein a drug storage groove (7 a) is formed in the lower end of the side wall of the insertion tube (7) in an upward forming mode, a plurality of through holes (7 b) are formed in the outer wall of the drug storage groove (7 a), the drug release agent (9) is arranged in the drug storage groove (7 a), the bottom sleeve (8) is arranged at the lower end of the insertion tube (7), and the bottom sleeve (8) covers the opening end of the drug storage groove (7 a); the rotary connecting boss (1 a) is rotationally arranged at the upper end of the bottom sleeve (8), the upper sliding block (2) is positioned in the insertion tube (7), and the lower sliding block (3) is positioned in the bottom sleeve (8).

3. An intrauterine drug delivery device for the treatment of uterine fibroid according to claim 2, characterized in that: the utility model discloses a plug-in pipe, including at least one bottom sleeve pipe (8) and at least one upper slider (2), plug-in pipe (7) and at least one lower slider (3), all be equipped with spacing boss (15) along the circumferencial direction on the inner wall of bottom sleeve pipe (8), upper slider (2) and plug-in pipe (7) inner wall sliding fit, and be equipped with on upper slider (2) with plug-in pipe (7) on spacing boss (15) matched with first spacing recess (2 a), lower slider (3) and at least one bottom sleeve pipe (8) inner wall sliding fit, and be equipped with on lower slider (3) with at least one bottom sleeve pipe (8) spacing boss (15) matched with second spacing recess (3 a).

4. An intrauterine drug delivery device for the treatment of uterine fibroid according to claim 2, characterized in that: when the upper sliding block (2) is propped against the rotary connecting boss (1 a), the upper end of the upper limiting rod (4) is flush with the upper end of the insertion tube (7); when the lower sliding block (3) is propped against the rotary connecting boss (1 a), the lower end of the lower limiting rod (5) is flush with the lower end of the bottom sleeve (8).

5. An intrauterine drug delivery device for the treatment of uterine fibroid according to claim 2, characterized in that: the lower end of the bottom sleeve (8) is provided with a connecting sleeve (10), and the lower end of the connecting sleeve (10) is provided with a hexagonal annular boss (10 a).

6. An intrauterine drug delivery device for the treatment of uterine fibroid according to claim 5, characterized in that: the feeding mechanism comprises a pushing pipe (11) and an adjusting rod (12), the adjusting rod (12) is rotatably sleeved in the pushing pipe (11), a locking sleeve (13) matched with the annular boss (10 a) is arranged at one end of the pushing pipe (11), and an adjusting sleeve (14) matched with the adjusting boss (6) is arranged at one end, close to the locking sleeve (13), of the adjusting rod (12).

7. An intrauterine drug delivery device for the treatment of uterine fibroid according to claim 6, characterized in that: the annular boss (10 a) is made of ferromagnetic stainless steel; the locking sleeve (13) is made of a magnet.

8. An intrauterine drug delivery device for the treatment of uterine fibroid according to claim 1, characterized in that: each upper limiting rod (4) and each lower limiting rod (5) are made of elastic materials, each upper limiting rod (4) comprises four sections, and each lower limiting rod (5) is provided with three sections.

9. An intrauterine drug delivery device for the treatment of uterine fibroid according to claim 1, characterized in that: the upper end of the bidirectional screw rod (1) is provided with a silica gel ball top (16).

10. An intrauterine drug delivery device for the treatment of uterine fibroid according to claim 1, characterized in that: the length of the section of the bidirectional screw rod (1) positioned at the upper end of the rotary connecting boss (1 a) is L, and the length of the section of the bidirectional screw rod (1) positioned at the lower end of the rotary connecting boss (1 a) is M, wherein L=3M.

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