CN217186608U

CN217186608U - Rotary type support pusher

Info

Publication number: CN217186608U
Application number: CN202220234999.6U
Authority: CN
Inventors: 郭云国; 陈光洁; 范孝春; 张议丹
Original assignee: Sichuan Purui Shunxiang Medical Devices Co ltd
Current assignee: Sichuan Purui Shunxiang Medical Devices Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-08-16
Anticipated expiration: 2032-01-27

Abstract

The utility model provides a rotary bracket pusher, belonging to the field of medical apparatus, comprising a guide tube, a sleeve and a handle sleeve, wherein the near end of the sleeve is fixedly connected with a sleeve seat; the near end of the guide tube is fixedly connected with a guide tube seat, and the guide tube is inserted into the sleeve from the end part of the sleeve seat; one end of the handle sleeve is fixedly connected with the sleeve seat, the other end of the handle sleeve is fixedly connected with the guide tube seat, the handle sleeve is used in the two ends fixedly connected with the sleeve seat or the guide tube seat, and the fixed connection at least at one end is in threaded connection. The utility model provides a rotary type support pusher is favorable to improving ureteral stent's the precision of putting into, avoids ureteral stent to appear not reacing the condition of assigned position with regard to unexpected slippage.

Description

Rotary type support pusher

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to rotary type support pusher.

Background

Ureteral stents are one of the most commonly used devices in urology surgery to treat benign or malignant urinary system diseases due to their important functions of supporting the urethra and draining urine. Ureteral stent implantation is usually adopted clinically to temporarily relieve obstruction, control infection and protect kidney function, and is an important treatment means for the current urology surgery.

At present, when a ureteral stent is clinically placed, a doctor places a ureteroscope into a bladder through a urethra to find a ureteral orifice at an affected side, places an ultra-smooth guide wire into the affected side ureter from a ureteroscope operation hole, the guide wire goes upwards along the affected side ureter, after confirming that the guide wire reaches a renal pelvis, places the stent along the guide wire, finally extracts the guide wire, and leaves the stent, so that the upper end of the ureteral stent is fixed at the lower end of the renal pelvis. In the implantation process of the scheme, the implantation precision of the ureteral stent is low, the accidental slipping condition easily occurs without reaching the designated position, and the use effect is not ideal.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that ureteral stent among the prior art breaks away from in leading-in process accident easily to a rotary type support pusher is provided.

In order to solve the problem, the utility model provides a rotary type support pusher, include:

the near end of the sleeve is fixedly connected with a sleeve seat;

the near end of the guide tube is fixedly connected with a guide tube seat, and the guide tube is inserted into the sleeve from the end part of the sleeve seat;

one end of the handle sleeve is fixedly connected with the sleeve seat, the other end of the handle sleeve is fixedly connected with the guide tube seat, the handle sleeve is used in two ends fixedly connected with the sleeve seat or the guide tube seat, and the fixed connection of at least one end is threaded connection.

Furthermore, the outer surface of the sleeve seat is provided with a first external thread section along the axial direction, and an internal thread section matched with the first external thread section is arranged in the handle sleeve.

Furthermore, a first limiting step is formed at the root of the first external thread section of the sleeve seat, and after the sleeve seat is in threaded connection with the handle sleeve, the handle sleeve is abutted against the first limiting step.

Further, the end of the casing seat facing to one end of the guide pipe seat is an opening which is gradually expanded outwards along the axial direction.

Furthermore, the handle sleeve is connected with the guide tube seat in an interference insertion mode.

Further, the guide tube seat is inserted into the handle sleeve.

Furthermore, a second limiting step is formed on the guide tube seat, and after the handle sleeve is inserted into the guide tube seat, the handle sleeve is abutted to the second limiting step of the guide tube seat.

Further, an annular boss is formed on one end of the handle sleeve close to the guide tube seat.

Furthermore, the handle sleeve is connected with the sleeve seat in an interference insertion mode.

Further, the outer wall of the sleeve and/or the handle sleeve is provided with a slip-proof structure.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a rotary type support pusher, one end and the casing seat fixed connection of handle cover, the other end and the guide tube seat fixed connection of handle cover, the handle cover is arranged in the both ends with casing seat or guide tube seat fixed connection, the fixed connection of at least one end is threaded connection, in the process of imbedding ureteral stent, through unscrewing casing seat and handle cover, or unscrewing guide tube seat and handle cover, make the sleeve pipe break away from the guide tube relatively and slowly release ureteral stent, thereby be favorable to promoting and imbed the precision; in addition, the sleeve seat can be fixed by the sleeve seat and the handle sleeve which are in threaded connection, so that relative shaking between the outer sleeve and the guide tube is avoided, and the risk that the ureteral stent falls off before reaching a specified position in the process of putting the ureteral stent into the catheter is reduced.

2. The utility model provides a rotary type support pusher, the spiro union length that the handle cover can be restricted to the first spacing step that sets up on the casing seat, the actual length of the threaded connection of control adjustment of being convenient for.

3. The utility model provides a rotary type support pusher is provided with the spacing step of second on the guide tube seat, and the handle cover butt after pegging graft is on the spacing step of second to it is difficult to take out to avoid the guide tube seat to excessively insert the handle cover.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a rotary stent pusher provided in an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a rotary stent pusher provided in an embodiment of the present invention.

Fig. 3 is an assembly diagram of the casing seat and the handle sleeve in the threaded connection according to the embodiment of the present invention.

Fig. 4 is a cross-sectional view of a guide tube seat and a handle cover in an embodiment of the invention.

Fig. 5 is a cross-sectional view of another embodiment of a guide tube seat and a handle cover in an embodiment of the invention.

Description of reference numerals:

1. a guide tube seat; 2. a handle cover; 3. a first limit step; 4. a cannula holder; 5. a sleeve; 6. a guide tube; 7. an internal thread section; 8. a first external thread section; 9. a second limit step; 10. opening the opening; 11. an annular boss; 12. a radial projection; 13. a second outer thread segment.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. 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 invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

This embodiment provides a rotary stent pusher that can be used in urological clinical placement procedures.

As shown in fig. 1, the rotary stent pusher comprises a guide tube 6 and a sleeve 5 sleeved on the guide tube 6, wherein the near end of the guide tube 6 is fixedly connected with a guide tube seat 1, the near end of the sleeve 5 is fixedly connected with a sleeve seat 4, a handle sleeve 2 is sleeved between the sleeve seat 4 and the guide tube seat 1, one end of the handle sleeve 2 is fixedly connected with the guide tube seat 1, and the other end of the handle sleeve 2 is in threaded connection with the sleeve seat 4.

In the process of putting the ureteral stent, the sleeve seat 4 and the handle sleeve 2 are unscrewed, so that the sleeve 5 is relatively separated from the guide tube 6 and the ureteral stent is slowly released, and the sleeve seat 4 and the handle sleeve 2 which are in threaded connection can fix the sleeve seat 4, so that relative shaking between the outer sleeve 5 and the guide tube 6 is avoided, and the risk that the ureteral stent falls off before reaching a specified position in the process of putting the ureteral stent is reduced. Here, the distal end is the end that correspondingly extends into the patient, and the proximal end is the operation end for operating the guide tube seat 1, the handle sleeve 2, and the like.

In this embodiment, the guiding tube 6 is inserted and fixed in the insertion opening of the guiding tube seat 1, and the sleeve 5 is inserted and fixed in the insertion opening of the sleeve seat 4, so as to ensure that pushing the sleeve seat 4 will drive the sleeve 5 to slide relative to the guiding tube 6.

As shown in fig. 2 and 3, the outer surface of the cannula holder 4 is provided with a first male thread section 8 along the axial direction thereof, the handle sleeve 2 is provided with a female thread section 7 for engaging with the first male thread section 8, and the cannula holder 4 and the handle sleeve 2 are screwed together by screwing the first male thread section 8 and the female thread section. As an alternative embodiment, it is also possible to provide the interior of the cannula holder 4 with an internally threaded end and the outer surface of the handle sleeve 2 with a first externally threaded section 8.

As shown in fig. 3, when the casing seat 4 is provided with the first external thread section 8, the first limit step 3 is formed at the root of the first external thread section 8, after the first casing seat 4 is in threaded connection with the handle sleeve 2, the end of the handle sleeve 2 abuts against the first limit step 3, the first limit step 3 is arranged to prevent the handle sleeve 2 from excessively screwing the casing seat 4, so that the casing seat slides out of the threaded section, and the screwing distance can be conveniently adjusted by marking the first limit step 3. As an alternative embodiment, the first limit step 3 can also be arranged on the handle sleeve 2, when the first external thread section 8 is arranged on the handle sleeve 2.

In addition, in the present embodiment, the end of the cannula holder 4 facing the end of the guide tube holder 1 is an opening 10 that is gradually expanded outward in the axial direction, the opening 10 may be disposed at the end of the threaded section, and the provision of the opening 10 can facilitate guiding the cannula holder 4 to penetrate through the guide tube 6, thereby facilitating assembling the cannula holder 4 on the guide tube 6.

As shown in fig. 4, in the embodiment, the handle sleeve 2 is connected with the guide tube seat 1 by interference insertion, specifically, the guide tube seat 1 is inserted into the handle sleeve 2, a second limit step 9 is formed on the guide tube seat 1, and after the handle sleeve 2 is inserted into the guide tube seat 1, the handle sleeve 2 can abut against the second limit step 9 of the guide tube seat 1, so as to avoid being inserted into the handle sleeve 2 excessively and being difficult to take out.

Here, the handle sleeve 2 is provided with an annular boss 11 at one end close to the guide tube seat 1, the annular boss 11 is arranged to facilitate the insertion of the handle sleeve 2 or the detachment of the guide tube seat 1 by external force, in addition, the guide tube seat 1 can adopt the existing mature standard joint, the purchase cost is low, and the connection with external parts is facilitated. A radial projection 12 is formed on the guide socket 1 at the end remote from the handle sleeve 2 to further facilitate handling of the guide socket 1. As an alternative embodiment, a recessed slot or other gripping facilitating structure may be provided on the handle sleeve 2.

In addition, in the embodiment, the outer wall of the handle sleeve 2 is further provided with an anti-slip structure, and the anti-slip structure can be anti-slip convex ridges which are arranged at fine intervals or other rough surfaces which can play an anti-slip role, so that the handle sleeve is convenient to hold and operate in the process of threaded connection or threaded connection release; as an alternative embodiment, an anti-slip structure may also be provided on the guide tube socket 1 or the cannula socket 4.

Example 2

The structure is unchanged, as shown in fig. 5, in this embodiment, the outer surface of the guide tube seat 1 is provided with a second external thread section 13 along the axial direction thereof, an internal thread section matched with the second external thread section 13 is arranged in the handle sleeve 2, and the threaded connection between the guide tube seat 1 and the handle sleeve 2 is realized through the threaded connection between the second external thread section 13 and the internal thread section. As an alternative embodiment, it is also possible that the interior of the guide tube holder 1 is provided with an internal thread section and the outer surface of the handle sleeve 2 is provided with a first external thread section 8, and that the relative movement of the cannula 5 and the guide tube 6 is achieved by pulling the guide tube 6 back in rotation.

Still as shown in fig. 5, when the guide tube seat 1 is provided with the second external thread section 13, the second limit step 9 is formed at the root of the second external thread section 13, after the guide tube seat 1 is in threaded connection with the handle sleeve 2, the end of the handle sleeve 2 abuts against the second limit step 9, the second limit step 9 is arranged to prevent the handle sleeve 2 from excessively screwing the guide tube seat 1 to slide due to the thread section disengagement, and the screwing distance can be conveniently marked and adjusted due to the abutting against the second limit step 9. As an alternative embodiment, the second stop step 9 can also be provided on the handle sleeve 2 when the second external thread section 13 is provided on the handle sleeve 2.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A rotary stent pusher, comprising:

the near end of the sleeve (5) is fixedly connected with a sleeve seat (4);

the near end of the guide tube (6) is fixedly connected with a guide tube seat (1), and the guide tube (6) is inserted into the sleeve (5) from the end part of the sleeve seat (4);

handle cover (2), the one end of handle cover (2) with casing seat (4) fixed connection, the other end of handle cover (2) with guide tube seat (1) fixed connection, handle cover (2) be used for with casing seat (4) or in guide tube seat (1) fixed connection's both ends, the fixed connection of at least one end is threaded connection.

2. The rotary stent pusher according to claim 1, wherein the outer surface of the cannula holder (4) is provided with a first external thread section (8) along the axial direction thereof, and an internal thread section (7) matching the first external thread section (8) is provided in the handle sleeve (2).

3. The rotary stent pusher according to claim 2, wherein a first limiting step (3) is formed at the root of the first external thread section (8) of the cannula holder (4), and after the cannula holder (4) is in threaded connection with the handle sleeve (2), the handle sleeve (2) abuts against the first limiting step (3).

4. The rotary stent pusher according to claim 2, wherein the end of the cannula holder (4) facing the guide tube socket (1) is ported as an axially outwardly diverging opening (10).

5. The rotary stent pusher according to claim 1, wherein the handle sleeve (2) and the guide tube seat (1) are connected by an interference plug connection.

6. A rotary stent pusher according to claim 5, characterized in that the guide tube seat (1) is inserted inside the handle sleeve (2).

7. The rotary stent pusher according to claim 6, wherein a second limit step (9) is formed on the guide tube seat (1), and after the handle sleeve (2) is inserted into the guide tube seat (1), the handle sleeve (2) abuts against the second limit step (9) of the guide tube seat (1).

8. A rotary stent pusher according to claim 5, characterized in that the handle sleeve (2) is configured with an annular boss (11) at one end near the guide tube seat (1).

9. The rotary stent pusher according to claim 1, wherein the handle hub (2) is connected to the cannula holder (4) by an interference fit.

10. A rotary stent pusher according to any one of claims 1-9, characterized in that the outer wall of the cannula holder (4) and/or the handle sleeve (2) is provided with a slip-resistant structure.