CN211094334U

CN211094334U - Pusher for medical occluder support

Info

Publication number: CN211094334U
Application number: CN201921056252.0U
Authority: CN
Inventors: 陈天鸣; 陈仕林; 任琦蓉
Original assignee: Jiangsu Cancer Hospital
Current assignee: Jiangsu Cancer Hospital
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-07-28
Anticipated expiration: 2029-07-08

Abstract

The utility model provides a pusher for a medical occluder bracket, which comprises an insertion tube, a push tube and an inner guide rod; the pushing pipe is inserted into the inserting pipe in a penetrating way, and the inner guide rod is inserted into the pushing pipe in a penetrating way; a first limiting lug is arranged on the outer pipe wall at the left end of the insertion pipe; a second limiting lug is arranged on the outer pipe wall at the left end of the push pipe; a sealing plug is arranged at the insertion end part of the inner guide rod; the sealing plug is provided with a spike part. The pusher utilizes the second limit lug and the first limit lug to drive the insertion tube and the push tube to axially move so as to control the axial movement drive of the telescopic rod and the outer sleeve, thereby realizing the deformation drive of the shuttle-shaped and umbrella-shaped structures; the sealing plug can prevent the liquid medicine from flowing out of the insertion hole into the outer sleeve to delay the drug effect, and the liquid medicine can be discharged out of the outer sleeve from the liquid medicine outlet by pushing the sealing plug; the sharp thorn part is used for puncturing the medicine bag, so that the medicine liquid flows out.

Description

Pusher for medical occluder support

Technical Field

The utility model relates to a medical appliance, in particular to a pusher for a medical occluder bracket.

Background

At present, in the treatment process of fistula of various organs, conservative treatment is preferred, such as comprehensive treatment through anti-infection, digestive juice secretion inhibition, internal and external drainage and decompression in the chest and abdominal cavity or through various natural orifices, nutrition enhancement, tissue repair promotion, granulation growth and the like, and self-healing is expected, the period is long, and patients are very painful. Some fistula holes are repaired by secondary operations, but the operation difficulty is high, the risk is high, the success rate is low, and the repaired fistula holes still have the risk of bleeding and re-fistula.

In more common fistula orifices, such as esophago-bronchial fistula, esophagogastric anastomotic fistula, residual gastric fistula, gastrointestinal anastomotic fistula, various intestinal fistulas, vesical vaginal fistula and rectovaginal fistula, fistula blocking is an important measure, so that the fistula orifice is temporarily closed, continuity of digestive tracts, respiratory tracts, urinary tracts and the like is recovered, the content does not overflow any more, and the corrosion of the content to surrounding tissues and the loss of body fluid and fatal complications such as infection, heavy bleeding and the like caused by the content are reduced. After the fistula is blocked, a relatively clean growth environment is created, the growth and healing of tissues at the fistula are facilitated, the treatment time is effectively shortened, and the normal functions of the digestive tract, the respiratory tract, the urinary tract and the like can be quickly restored. The common fistula plugging methods at present are: for small fissured fistulas, various medical glue and plugging means such as clamping closure and the like are applied through the intervention ways such as a gastrointestinal endoscope, a bronchoscope or a cystoscope and the like, and some can be successful; for larger defects of the fistula of the hollow viscera, after infection and inflammation are effectively controlled, the fistula is sutured, clamped or placed on a bracket by adopting an operation or an intervention way such as a gastrointestinal endoscope, a bronchoscope or a cystoscope, but the treatment effect is not exact after the fistula is blocked, and the fistula is easily subjected to a plurality of interference factors, so that complications such as infection, bleeding, local necrosis, expansion of the fistula and the like around the fistula are easily caused; after difficult plugging or failure of plugging, only one stage of operation fistulization and drainage can be selected, and then two stages of stoma repair and anastomosis are carried out, so that the treatment time is long, the pain of a patient is caused, and complications such as stoma stenosis, bleeding and infection and the like and the risk of repaired stoma reemplification are difficult to avoid during and after the operation. The appearance of the occluder enables a plurality of patients with congenital heart diseases such as atrioventricular defect, main pulmonary fistula and the like to obtain very good curative effect, avoids huge damage of cardiac surgery, and has an improved occluder applied to the treatment of hollow organ fistula with infection and corrosion states at present.

The medical occluder is a main apparatus for treating hollow organ fistula, the bracket of the medical occluder is a main component for realizing the function of the occluder, and when the occluder bracket is used, an attending doctor needs to have better operation experience to accurately install the occluder bracket at a specified position. Therefore, there is a need for a pusher for a medical occluder stent that can quickly and accurately deliver a mating occluder stent to a desired location.

Disclosure of Invention

The utility model aims to provide a: the pusher for the medical occluder bracket can quickly and accurately send the matched occluder bracket to a specified position.

In order to realize the purpose of the utility model, the utility model provides a pusher used for a medical occluder bracket, which comprises an insertion tube, a pushing tube and an inner guide rod; the pushing pipe is inserted into the inserting pipe in a penetrating way, and the inner guide rod is inserted into the pushing pipe in a penetrating way; a first limiting lug is arranged on the outer pipe wall at the left end of the insertion pipe; a second limiting lug is arranged on the outer pipe wall at the left end of the push pipe; a sealing plug is arranged at the insertion end part of the inner guide rod; the sealing plug is provided with a spike part.

Furthermore, a rotation limiting sliding groove is axially arranged on the inner pipe wall of the insertion pipe; a circle of supporting convex ring is arranged on the outer pipe wall of the push pipe and is close to the inner pipe wall of the insert pipe; the supporting convex ring is provided with a rotary limiting slide block which is embedded into the rotary limiting slide groove in a sliding manner.

Furthermore, a tension spring fixing convex ring is arranged on the inner pipe wall of the insertion pipe; a tension spring is sleeved on the pushing pipe; one end of the tension spring is fixed on the supporting convex ring, and the other end of the tension spring is fixed on the tension spring fixing convex ring.

Furthermore, a side lug is arranged on the outer tube wall at the right end of the insertion tube, and a hand-buckle hole is arranged on the side lug; the right end of the push tube is provided with a handle frame.

Furthermore, a limiting disc is arranged at the right end of the inner guide rod; the inner guide rod is sleeved with a supporting pressure spring, and two ends of the supporting pressure spring are respectively and elastically supported on the handle frame and the limiting disc.

Furthermore, the number of the first limiting convex blocks and the number of the second limiting convex blocks are two, the two first limiting convex blocks are symmetrical about the axis of the insertion tube, and the two second limiting convex blocks are symmetrical about the axis of the pushing tube.

The beneficial effects of the utility model reside in that: the second limiting convex block and the first limiting convex block can be matched with an outer sleeve and an expansion link of the occluder support to be installed, and the axial movement drive of the expansion link and the outer sleeve can be controlled by the axial movement of the insertion tube and the push tube, so that the deformation drive of a fusiform structure and an umbrella-shaped structure is realized; the sealing plug can prevent the liquid medicine from flowing out of the insertion hole into the outer sleeve to delay the drug effect, and the liquid medicine can be discharged out of the outer sleeve from the liquid medicine outlet by pushing the sealing plug; the sharp thorn part is used for puncturing the medicine bag, so that the medicine liquid flows out.

Drawings

Fig. 1 is a schematic structural view of the pusher of the present invention;

fig. 2 is a schematic structural view of the pusher of the present invention in a use state;

fig. 3 is a schematic view of the plugging device bracket structure with the pusher matched with the plugging device of the present invention.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1:

as shown in fig. 1 and 2, the pusher for a medical occluder support of the present invention comprises: an insertion tube 18, a push tube 19, and an inner guide 20; the pushing pipe 19 is inserted in the inserting pipe 18 in a penetrating way, and the inner guide rod 20 is inserted in the pushing pipe 19 in a penetrating way; a first limiting lug 21 is arranged on the outer pipe wall at the left end of the insertion pipe 18; a second limiting lug 22 is arranged on the outer pipe wall at the left end of the push pipe 19; a sealing plug 23 is arranged at the insertion end part of the inner guide rod 20; the sealing plug 23 is provided with a spike 24.

The second limit lug 22 and the first limit lug 21 can be matched with the outer sleeve 1 and the telescopic rod 2 of the occluder support to be installed, and the axial movement driving of the telescopic rod 2 and the outer sleeve 1 can be controlled by the axial movement of the insertion tube 18 and the push tube 19, so that the deformation driving of a shuttle-shaped structure and an umbrella-shaped structure is realized; the sealing plug 23 can prevent the liquid medicine from flowing out of the insertion hole 36 into the outer sleeve 1 to delay the drug effect, and the liquid medicine can be discharged out of the outer sleeve 1 from the liquid medicine outlet 37 by pushing the sealing plug 23; the sharp-pointed part 24 is used for puncturing the medicine bag 10, so that the medicine liquid flows out.

Further, a rotation-limiting sliding groove 25 is axially arranged on the inner pipe wall of the insertion pipe 18; a circle of supporting convex rings 26 are arranged on the outer pipe wall of the push pipe 19, and the supporting convex rings 26 are close to the inner pipe wall of the insertion pipe 18; a rotation-limiting slide block 27 slidably fitted into the rotation-limiting slide groove 25 is provided on the support flange 26. The relative rotation of the insertion tube 18 and the pushing tube 19 can be limited by the matching of the rotation limiting sliding groove 25 and the rotation limiting sliding block 27, so that the first limiting lug 21 and the second limiting lug 22 are kept at opposite positions, and the insertion device can synchronously enter a first notch and a second notch at corresponding positions on the occluder bracket; the use of the support collar 26 reduces the play of the thrust tube 19 in the insertion tube 18.

Further, a tension spring fixing convex ring 29 is arranged on the inner pipe wall of the insertion pipe 18; a tension spring 28 is sleeved on the pushing pipe 19; one end of a tension spring 28 is fixed to the support collar 26, and the other end is fixed to a tension spring fixing collar 29. The left end of the pushing tube 19 can be pulled to move to the right side by the tension spring 28 in the initial state, so that the telescopic rod 2 retracts into the outer sleeve 1, and each U-shaped rod 5 of the umbrella-shaped structures at the two ends is pulled to be close to the middle, thereby forming a fusiform structure which is convenient to insert into the fistula.

Furthermore, a side lug 30 is arranged on the outer tube wall at the right end of the insertion tube 18, and a hand-buckling hole 31 is arranged on the side lug 30; a handle frame 32 is provided at the right end of the push pipe 19. The cooperation of the handle hole 31 and the handle frame 32 facilitates the physician to manually control the relative axial displacement between the insertion tube 18 and the pushing tube 19.

Furthermore, a limiting disc 33 is arranged at the right end of the inner guide rod 20; a supporting compression spring 34 is sleeved on the inner guide rod 20, and two ends of the supporting compression spring 34 are respectively and elastically supported on the handle frame 32 and the limiting disc 33. The support compression spring 34 can be used for enabling the sharp puncturing part 24 to be far away from the medicine bag 10 when the tube 19 is pushed to enter the insertion hole 36, so that the error puncturing is prevented, and the puncturing operation can be realized by pressing the limiting disc 33 when the puncturing is needed.

Further, two first limit projections 21 and two second limit projections 22 are provided, and the two first limit projections 21 are symmetrical with respect to the axis of the insertion tube 18, and the two second limit projections 22 are symmetrical with respect to the axis of the push tube 19. The first limit bump 21 and the second limit bump 22 are both set to be two, so that balance during buckling can be ensured.

As shown in fig. 2 and 3, the occluder support of the present invention comprises an outer sleeve 1 and a telescopic rod 2, wherein two ends of the occluder support are provided with deformable umbrella-shaped structures, each umbrella-shaped structure is composed of a U-shaped rod 5, and the umbrella-shaped structures at two ends are deformed in the relative sliding process of the outer sleeve 1 and the telescopic rod 2; a second notch communicated with the second limiting ring groove 11 is arranged on the right end face of the telescopic rod 2; an inner pipe limiting convex ring 12 is arranged at the right end pipe orifice of the outer sleeve 1, and a circle of first limiting ring groove is arranged on the inner ring surface of the inner pipe limiting convex ring 12; a first gap communicated with the first limit ring groove 13 is arranged on the right end face of the outer sleeve 1; the second limiting bump 22 enters the second limiting ring groove 11 from the second notch; the first limiting bump 21 enters the first limiting ring groove 13 from the first notch; an insertion hole 36 is provided at the right end of the telescopic rod 2, and the medicine bag 10 is provided in the insertion hole 36.

When the pusher for the medical occluder support is used, the insertion tube 18 and the pushing tube 19 are correspondingly inserted into the outer sleeve 1 and the insertion hole 36 respectively, so that the first limiting lug 21 enters the first limiting ring groove 13 from the first notch, and the second limiting lug 22 enters the second limiting ring groove 11 from the second notch; then, through the matching of the handle frame 32 and the hand buckle hole 31, the push tube 19 pulls the telescopic rod 2 to retract into the outer sleeve 1, so that each U-shaped rod 5 with umbrella-shaped structures at two ends is pulled to approach to the middle to form a fusiform structure which is convenient to insert into the fistula hole, and then the fusiform structure is inserted into the fistula hole to be plugged; then, through the matching of the handle frame 32 and the hand buckling hole 31, the push tube 19 pushes the telescopic rod 2 to extend outwards from the outer sleeve 1, so that each U-shaped rod 5 at two ends is pushed to be turned outwards to form an umbrella-shaped structure, and the umbrella-shaped structure is pressed on the side surfaces of two ends of the fistula hole to meet the plugging requirement; then, the inner guide rod 20 is pressed to extend out of the pushing tube 19 rightwards through the matching use of the handle frame 32 and the limiting disc 33, the medicine bag 10 is punctured by the sharp thorn part 24, and meanwhile, the sealing plug 23 pushes the liquid medicine to be discharged out of the telescopic rod 2 from the liquid medicine outlet 37; finally, the insertion tube 18 is rotated, so that the first limiting bump 21 is separated from the first limiting ring groove 13 through the first notch, meanwhile, the second limiting bump 22 is separated from the second limiting ring groove 11 through the second notch, the insertion tube 18 and the push tube 19 are pulled out, and the precise positioning and installation of the plugging device support are completed.

As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A pusher for a medical occluder stent, comprising: comprises an insertion tube (18), a pushing tube (19) and an inner guide rod (20); the pushing pipe (19) is inserted in the inserting pipe (18) in a penetrating way, and the inner guide rod (20) is inserted in the pushing pipe (19) in a penetrating way; a first limiting lug (21) is arranged on the outer pipe wall at the left end of the insertion pipe (18); a second limiting lug (22) is arranged on the outer pipe wall at the left end of the pushing pipe (19); a sealing plug head (23) is arranged at the insertion end part of the inner guide rod (20); a spike part (24) is arranged on the sealing plug head (23).

2. The pusher for a medical occluder stent of claim 1, wherein: a rotation limiting sliding groove (25) is axially arranged on the inner pipe wall of the insertion pipe (18); a circle of supporting convex rings (26) are arranged on the outer pipe wall of the pushing pipe (19), and the supporting convex rings (26) are close to the inner pipe wall of the inserting pipe (18); a rotation limiting slide block (27) which is embedded into the rotation limiting slide groove (25) in a sliding way is arranged on the supporting convex ring (26).

3. The pusher for a medical occluder stent of claim 2, wherein: a tension spring fixing convex ring (29) is arranged on the inner pipe wall of the insertion pipe (18); a tension spring (28) is sleeved on the pushing pipe (19); one end of a tension spring (28) is fixed on the supporting convex ring (26), and the other end is fixed on a tension spring fixing convex ring (29).

4. The pusher for a medical occluder stent of claim 1, wherein: a side lug (30) is arranged on the outer tube wall at the right end of the insertion tube (18), and a hand-buckle hole (31) is arranged on the side lug (30); a handle frame (32) is provided at the right end of the push pipe (19).

5. The pusher for a medical occluder stent of claim 4, wherein: a limiting disc (33) is arranged at the right end of the inner guide rod (20); a supporting compression spring (34) is sleeved on the inner guide rod (20), and two ends of the supporting compression spring (34) are respectively and elastically supported on the handle frame (32) and the limiting disc (33).

6. The pusher for a medical occluder stent of claim 1, wherein: the number of the first limiting convex blocks (21) and the number of the second limiting convex blocks (22) are two, the two first limiting convex blocks (21) are symmetrical about the axial lead of the insertion pipe (18), and the two second limiting convex blocks (22) are symmetrical about the axial lead of the pushing pipe (19).