Prostate urethral stent system conveyor with window

Abstract

The utility model discloses a prostate urethral stent system conveyor with a window, which relates to the technical field of medical instruments and comprises an inner tube and an outer tube, the outer tube is sleeved on the outer tube, an insertion end of the inner tube is provided with an insertion port, the inner tube is provided with an inward-opening window, the outer tube is provided with an outward-opening window, and the inward-opening window and the outward-opening window are communicated with each other. An endoscope is arranged in the inner tube, and a bracket is arranged on the inner tube; on the basis of the technical scheme provided by the utility model, the window facing the verumontana is additionally arranged on the conveyor, and the windows are simultaneously formed on the outer tube and the inner tube, so that the window through which the near end of the bracket and the position of the verumontana can be observed by an endoscope is formed, and the near end of the bracket and the position of the verumontana can be directly observed by the endoscope in an operation; therefore, the support can be accurately placed.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a kind of prostatic urethral stent system conveyor of windowing. BACKGROUND

[0002] 028 series of current Memokath urethral stent system is prostatic urethral stent system. The system is used to treat urethral stricture caused by prostatic hyperplasia. During operation, the stent needs to be implanted in the designated narrow part under endoscope. During operation, endoscope and stent head end are in relatively fixed state, after endoscope and stent head end enter the body together, medical staff needs to observe bladder neck first, then retreat a little distance, and finally release the stent.

[0003] Since the delivery system of Memokath stent is opaque high molecular weight catheter, the position of urethral crest and glans penis cannot be observed through endoscope during operation. Therefore, the retreat distance of the whole system is estimated by experience of medical staff, which is inconvenient and inaccurate in positioning. UTILITY MODEL CONTENT

[0004] The utility model aims to solve the technical problems that the prior art has the problems of inconvenient and inaccurate placement of urethral stent system conveyor.

[0005] TECHNICAL SCHEME

[0006] To solve the above problems, the utility model provides the technical scheme as follows:

[0007] A prostatic urethral stent system conveyor with windowing includes an inner tube and an outer tube, the outer tube is sleeved on the outer tube, the insertion end of the inner tube is provided with an insertion port, the inner tube is provided with an inner window, the outer tube is provided with an outer window, the inner tube is provided with an endoscope, and the inner tube is provided with a stent.

[0008] Further, the opening shape of the outer window corresponds to the opening shape of the inner window.

[0009] Further, the shape of the outer window is half of the shape of the inner window.

[0010] Further, the opening shape of the inner window is rectangular and two semicircular shapes, and the two semicircular shapes are arranged at both ends of the rectangular shape.

[0011] Further, the outer window is located at one end of the insertion direction of the outer tube.

[0012] Further, the outer window is arranged on the side of the inner window away from the insertion direction.

[0013] Further, the insertion port is a circular truncated cone structure, the head of the insertion port has the same outer diameter as the outer diameter of the inner tube, and the tail of the insertion port has the same outer diameter as the outer diameter of the outer tube sleeved on the inner tube.

[0014] Further, the head of the insertion port linearly expands outwardly to the tail.

[0015] Further, the bracket is arranged between the tail end surface of the insertion port and the end surface of the outer tube facing the insertion direction.

[0016] Further, one end of the inner tube facing the insertion direction is locally slotted.

[0017] Beneficial effects

[0018] Compared with the prior art, the technical scheme has the following beneficial effects:

[0019] On the basis of the technical scheme provided by the utility model, the window facing the apex of the urethra is added to the conveyor, the outer tube and the inner tube are simultaneously windowed, thereby forming a window through which the proximal end of the stent and the apex of the urethra can be observed by the endoscope, the proximal end of the stent and the apex of the urethra can be directly observed by the endoscope during the operation, and the stent can be accurately placed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure sectional view of the embodiment 1 of the utility model;

[0021] Figure 2 is a sectional axonometric view of the embodiment 1 of the utility model;

[0022] Figure 3 is a combined schematic view of the inner tube and the outer tube of the embodiment 1 of the utility model;

[0023] Figure 4 is an enlarged schematic view of the inner window and the outer window of the embodiment 1 of the utility model;

[0024] Figure 5 is a use schematic view of the embodiment 1 of the utility model. DETAILED DESCRIPTION

[0025] In order to make the technical scheme of the utility model clearer, the utility model is further described in detail in combination with the drawings and specific embodiments.

[0026] Embodiment 1

[0027] In combination with the drawings, Figures 1-5The utility model provides a kind of windowed prostatic urethral stent system delivery device for insertion into urethra, which can assist endoscope to enter urethra, and endoscope moves through its internal pipeline, including inner tube 1, outer tube 2, outer tube 2 is set on the outer of inner tube 1, and the internal pipeline of inner tube 1 is used for the movement of endoscope.

[0028] The end of inner tube 1 towards insertion direction is provided with insertion port 11, and the insertion port 11 is circular truncated cone structure, the head of the circular truncated cone structure of insertion port 11 is located at the end of inner tube 1 towards insertion direction, and the tail of the circular truncated cone structure of insertion port 11 is away from the end towards insertion direction, the outer diameter of the head of insertion port 11 is same with the outer diameter of inner tube 1, the outer diameter of the tail of insertion port 11 is greater than the outer diameter of inner tube 1, the outer diameter of the tail of insertion port 11 is same with the outer diameter of outer tube 2 set on inner tube 1, and the head of insertion port 11 linearly expands outwardly from the tail, so that after inner tube 1 is inserted into urethra, insertion port 11 can open sufficient moving space for subsequent pipeline insertion.

[0029] Inner tube 1 is provided with inner window 12, and the inner window 12 penetrates the wall of inner tube 1, and the inner window 12 is regular opening, and preferably the shape of inner window 12 is combined figure composed of rectangle and two semicircles arranged at both ends of the rectangle.

[0030] The end of outer tube 2 towards insertion direction is provided with outer window 22, and the outer window 22 is half of the figure of inner window 12, and when outer tube 2 is set on inner tube 1, the outer window 22 of outer tube 2 is set on the side of inner window 12 of inner tube 1 away from insertion direction, and the outer window 22 partially overlaps with inner window 12 on the side away from insertion direction.

[0031] The bracket 3 is installed between insertion port 11 of inner tube 1 and outer tube 2, and the bracket 3 is surgical component needed to be implanted in narrow part of urethra of patient during surgery.

[0032] The endoscope 4 is inserted into inner tube 1, and during surgery, the endoscope 4 is relatively fixed between bracket 3 and the head end towards insertion direction, so that after the endoscope 4 is inserted into inner tube 1, the endoscope 4 can observe the position of delivery device in urethra through inner window 12 and outer window 22.

[0033] Since the bracket 3 is fixed by insertion port 11 and outer tube 2 after being installed on inner tube 1, the bracket 3 covers part of the opening of inner window 12, so that after the endoscope 4 enters inner tube 1, the endoscope 4 observes urethra through outer window 22 and the part of inner window 12 overlapping with outer window 22.

[0034] The inner tube 1 is provided with a local slot 13 at one end in the insertion direction, and the local slot 13 is symmetrically arranged on both sides of the inner tube, so that when the medical staff inserts the inner tube 1 into the urethra, the end of the inner tube 1 in the insertion direction can be squeezed, so that the wall of the inner tube 1 at one end in the insertion direction is inwardly retracted into the local slot 13, thereby causing the end of the outer tube 1 in the insertion direction to be locally deformed, and facilitating the medical staff to insert the inner tube 1 into the urethra.

[0035] In use, the inner tube 1, the outer tube 2, the stent 3 and the endoscope 4 are assembled into a delivery tube, and then the delivery tube is inserted into the urethra through the insertion port 11 of the inner tube 1, and the medical staff observes the position of the delivery device in the urethra through the inner window 12 and the outer window 22 of the endoscope 4, so that the urethral crest and the apicalis penis are observed through the endoscope 4, thereby achieving accurate positioning of the placement position of the stent 3.

[0036] The above-described embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A fenestrated prostatic urethral stent delivery system, characterized in that, The device comprises an inner tube and an outer tube, the outer tube is sleeved on the inner tube, the insertion end of the inner tube is provided with an insertion port, the inner tube is provided with an inner window, the outer tube is provided with an outer window, the inner tube is provided with a support.

2. The fenestrated prostatic urethral support system delivery device of claim 1, wherein, The opening shape of the outer window corresponds to the opening shape of the inner window.

3. A fenestrated prostatic urethral stent delivery device according to claim 2, wherein, The shape of the outer window is half of the shape of the inner window.

4. The fenestrated prostatic urethral support system delivery device of claim 1, wherein, The opening shape of the inner window is a rectangle and two semicircles, and the two semicircles are arranged at both ends of the rectangle.

5. The fenestrated prostatic urethral support system delivery device of claim 1, wherein, The outer window is located at one end of the insertion direction of the outer tube.

6. A fenestrated prostatic urethral support system delivery device according to claim 5, wherein, The outer window is arranged on the side of the inner window away from the insertion direction.

7. The fenestrated prostatic urethral support system delivery device of claim 1, wherein, The insertion port is a circular truncated cone structure, the outer diameter of the head of the insertion port is the same as the outer diameter of the inner tube, and the tail outer diameter of the insertion port is the same as the outer diameter of the outer tube sleeved on the inner tube.

8. The fenestrated prostatic urethral support system delivery device of claim 7, wherein, The head of the insertion port linearly expands outward to the tail.

9. The fenestrated prostatic urethral support system delivery device of claim 7, wherein, The support is arranged between the tail end surface of the insertion port and the end surface of the outer tube facing the insertion direction.

10. The fenestrated prostatic urethral support system delivery device of claim 1, wherein, The end of the inner tube facing the insertion direction is provided with a local slot.

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