Bladder puncture fistulization device and catheter

Abstract

The bladder puncture fistulization device comprises a puncture outfit and a supporting sleeve arranged outside the puncture outfit in a sleeving mode, and the puncture outfit is composed of a tube body, a first half-conical tube and a second half-conical tube; the bottom ends of the first half taper pipe and the second half taper pipe are respectively hinged with the front end of the pipe body; the top ends of the first half taper pipe and the second half taper pipe are buckled together; a pre-tensioning elastic mechanism is arranged between the top of the inner side of the first half-taper pipe and the top of the inner side of the second half-taper pipe and used for separating the first half-taper pipe from the second half-taper pipe. A first slotted hole extending axially is formed in one side of the supporting sleeve; a second slotted hole extending in the axial direction is formed in the pipe body; a connecting rod of a T-shaped operating rod sequentially penetrates through the first slotted hole and the second slotted hole in the radial direction and then is inserted into a U-shaped groove in the outer wall of a catheter pre-placed in the catheter body. The device has the advantages of few components, simplicity in operation, rapidness in urinary catheter insertion, smooth surface without scratching, and no secondary injury to a human body.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a bladder puncture and ostomy device and a urinary catheter. Background Art

[0002] The cystoscopic fistula devices currently used in medical treatment are mainly Figure 1 The obturator puncture device shown is a tapered obturator puncture device 1 at the front end, a sheath 2 that can be sleeved on the obturator puncture device 1 (the sheath 2 includes an operating nut 3 at the rear end, a first groove section 5 connected to the operating nut 3 through a first circular tube section 4), and an outer tube 6 that can be sleeved on the sheath 2 (the outer tube 6 includes a second circular tube section 7 at the front end and a second groove section 8 extending backward from the rear end of the second circular tube section 7, and the front end of the second groove section 8 is provided with a longitudinal C-shaped notch 9). In practical use, the obturator puncture device 1 is inserted into the sheath 2 from the rear end and extends forward to be exposed outside the front end of the sheath 2, the outer tube 6 is sleeved on the sheath 2 from the front end of the sheath 2, and the outer tube 6 is rotated so that the second groove section 8 is relatively engaged with the first groove section 5. Together, the front end rod of the obturator puncture device 1 which is sleeved in the sheath 2 can be seen through the notch 9, and the tail end of the outer tube 6 is inserted into the gap between the operating nut 3 and the circular tube section 4 to complete the limit fixation of the outer tube 6. The preoperative preparation of the bladder puncture and fistula device is completed. During the operation, while the obturator puncture device 1 punctures the body, the sheath 2 and the outer tube 6 enter together. After the puncture is completed, the obturator puncture device 1 is pulled out, and a urinary catheter is inserted into the body through the notch 9. At the same time, the sheath 2 is pulled out. After the insertion and fixation of the urinary catheter is completed, the outer tube 6 is pulled out. At this time, since the outer tube 6 is provided with a C-shaped notch 9, it is inevitable that hooking injuries will be caused to human tissues, causing secondary injuries and pain to the patient, and increasing postoperative risks.

[0003] It is not difficult to see that the bladder puncture fistula device of this structure has more components and is complicated to operate, especially the C-shaped notch 9 will cause damage to human tissue when it is pulled out.

[0004] Since the slot 9 is provided at the front end of the outer tube 6 and the inherent length of the sheath 2 and the outer tube, it is difficult to penetrate into the stoma of an obese patient, which may cause urine leakage and difficulty in catheterization. Utility Model Content

[0005] The utility model aims to overcome the problems of the existing bladder puncture fistula device that the tissue is easily scratched when it is pulled out, causing secondary pain to the patient, surgical risks and complicated operation.

[0006] To achieve the above-mentioned purpose, the utility model provides a bladder puncture fistula device, including a puncture device and a supporting sleeve sleeved outside the puncture device, the special feature of which is that the puncture device is composed of a tube body, a first semi-conical tube and a second semi-conical tube; the bottom ends of the first semi-conical tube and the second semi-conical tube are respectively hinged to the front end of the tube body; the top ends of the first semi-conical tube and the second semi-conical tube are buckled together; a pre-tensioning elastic mechanism is provided between the inner tops of the first semi-conical tube and the second semi-conical tube to repel the first semi-conical tube and the second semi-conical tube; a first axially extending slot is provided on one side of the supporting sleeve; a second axially extending slot is provided on the tube body; a connecting rod of a T-shaped operating rod radially passes through the first slot and the second slot in sequence, and is inserted into the U-shaped slot on the outer wall of the catheter pre-placed in the tube body.

[0007] The aforementioned pre-tensioning elastic mechanism comprises at least one elastic sheet arranged between the inner tops of the first semi-conical tube and the second semi-conical tube, a pulling and releasing rope passing through the tube body, and a fixing hook fixed to the rear end of the tube body;

[0008] An upper circular hole and a lower circular hole are respectively formed at both ends of the elastic sheet;

[0009] One end of the pulling release rope is fixed on the upper circular hole, and the other end is pulled backward to the rear end of the tube body after passing through the lower circular hole, and is hooked and fixed on the fixing hook after being tensioned.

[0010] A semi-sphere is arranged at the top of the first semi-conical tube, which matches with the concave spherical surface arranged at the top of the second semi-conical tube, so that the top of the first semi-conical tube is buckled with the top of the second semi-conical tube.

[0011] A connecting ear is respectively arranged at the bottom end of the first semi-conical tube and the second semi-conical tube, and a countersunk hole corresponding to the connecting ear is arranged at the front end of the tube body; a transverse through hole penetrating the outer wall of the tube body is opened on the axial side wall of the countersunk hole; a latch is inserted from one end of the transverse through hole, passes through the connecting ear arranged in the countersunk hole, and then is inserted into the other end of the transverse through hole.

[0012] A marking ring is arranged on the side wall of the urinary catheter.

[0013] A marking ring is arranged on the side wall of the urinary catheter.

[0014] A marking ring is arranged on the side wall of the urinary catheter.

[0015] A urinary catheter is provided with a U-shaped groove on the outer wall of the urinary catheter, the axis of which is perpendicular to the axis of the urinary catheter.

[0016] A marking ring is arranged on the side wall of the urinary catheter.

[0017] The marking ring is located between the front end of the urinary catheter and the U-shaped groove.

[0018] The utility model has the advantages of less components, simple operation, fast catheter insertion, smooth surface without scratches, and no secondary damage to the human body.

[0019] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a structural schematic diagram of an existing bladder puncture fistula device.

[0021] Figure 2 The present invention is a schematic diagram of the structure of an improved bladder puncture fistula device.

[0022] Figure 3 It is a cross-sectional view of the improved cystoscopic fistula device.

[0023] Figure 4 The utility model is a schematic diagram of the connection structure of the first half cone tube, the second half cone tube and the tube body constituting the conical puncture head of the puncture device.

[0024] Figure 5 It is a schematic diagram of the first half cone tube and the second half cone tube in an open or repelled state.

[0025] Figure 6 It is a schematic diagram of the coordination between the elastic sheet and the pulling release rope.

[0026] Figure 7 It is a schematic diagram of a first slot hole and a T-shaped operating rod provided on a supporting sleeve.

[0027] Figure 8 is a schematic diagram of a urinary catheter.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. obturator trocar; 2. sheath; 3. operating nut; 4. first circular tube segment; 5. first grooved segment; 6. outer tube; 7. second circular tube segment; 8. second grooved segment; 9. notch; 10. trocar; 11. supporting sleeve; 12. tube body; 13. first semi-conical tube; 14. second semi-conical tube; 15. first slotted hole; 16. second slotted hole; 17. T-shaped operating rod; 18. connecting rod; 19. catheter; 20. U-shaped slot; 21. elastic sheet; 22. pulling release rope; 23. fixing hook; 24. upper circular hole; 25. lower circular hole; 26. hemisphere; 27. concave spherical surface; 28. connecting ear; 29. ​​countersunk hole; 30. transverse perforation; 31. latch; 32. marking ring. DETAILED DESCRIPTION

[0029] In order to overcome the problems of the existing bladder puncture ostomy device that it is easy to scratch the tissue when it is pulled out, causing secondary pain to the patient, surgical risks and cumbersome operation, this embodiment provides a Figure 2The bladder puncture fistula device shown in the figure comprises a puncture device 10 and a supporting sleeve 11 sleeved outside the puncture device 10, Figure 3 It can be seen that the trocar 10 is composed of a tube body 12, a first semi-conical tube 13 and a second semi-conical tube 14; the bottom ends of the first semi-conical tube 13 and the second semi-conical tube 14 are respectively hinged to the front end of the tube body 12; Figure 4 The bottom ends of the first semi-conical tube 13 and the second semi-conical tube 14 shown are respectively provided with a connecting ear 28, and the front end of the tube body 12 is provided with a countersunk hole 29 corresponding to the connecting ear 28; a transverse through-hole 30 penetrating the outer wall of the tube body 12 is opened on the axial side wall of the countersunk hole 29; a latch 31 is inserted from one end of the transverse through-hole 30, passes through the connecting ear 28 disposed in the countersunk hole 29, and then is inserted into the other end of the transverse through-hole 30, completing the hinge connection between the bottom ends of the first semi-conical tube 13 and the second semi-conical tube 14 and the front end of the tube body 12, and ensuring that the first semi-conical tube 13 and the second semi-conical tube 14 can rotate around the hinge toward the outer wall of the tube body 12, preparing for the insertion of a urinary catheter after the puncture is completed later.

[0030] The top ends of the first semi-conical tube 13 and the second semi-conical tube 14 are buckled together. Figure 4 , 5 The top of the first semi-conical tube 13 is provided with a semi-sphere 26, which is matched (fastened) with the concave spherical surface 27 provided at the top of the second semi-conical tube 14, so that the top of the first semi-conical tube 13 and the top of the second semi-conical tube 14 are fastened together, and the top of the first semi-conical tube 13 and the top of the second semi-conical tube 14 are fastened together. Figure 4 A pre-tensioning elastic mechanism is provided between the inner tops of the first semi-conical tube 13 and the second semi-conical tube 14, which is used to repel the first semi-conical tube 13 and the second semi-conical tube 14; the pre-tensioning elastic mechanism is specifically Figure 4 The illustrated embodiment includes at least one elastic sheet 21 disposed between the inner top of the first semi-conical tube 13 and the second semi-conical tube 14, a pulling and releasing rope 22 passing through the tube body 12, and a locking device 24 fixed on the tube body 12. Figure 1 or Figure 2 The fixing hook 23 of the rear end of the tube body 12 is shown; wherein, the two ends of the elastic sheet 21 are respectively provided with Figure 6The upper circular hole 24 and the lower circular hole 25 are shown; one end of the pulling and releasing buckle rope 22 is fixed on the upper circular hole 24, and the other end is pulled backward to the rear end of the tube body 12 after passing through the lower circular hole 25, and is hooked and fixed on the fixing hook 23 after being tensioned, so that the pre-tensioning of the elastic sheet is completed, and the energy storage of the first semi-conical tube 13 and the second semi-conical tube 14 for repelling the latter is completed, so as to ensure that when the puncture is completed and the catheter needs to be inserted, the fixing of the pulling and releasing buckle rope 22 is manually released, that is, the pulling and releasing buckle rope 22 is released, and the constraint on the elastic sheet is released, and the first semi-conical tube 13 and the second semi-conical tube 14 are released. The cone 14 opens under the elastic force of the elastic sheet. It should be noted that in order to ensure safe operation, the constraint on the elastic sheet needs to be slowly released. The specific operation is to manually untie the binding of the pulling and untying rope 22 on the fixed hook 23, and at the same time hold the pulling and untying rope 22 tightly, and slowly loosen the pulling on the pulling and untying rope 22 to achieve the slow release of the constraint on the elastic sheet. In order to reduce the pulling on the human hands, the tail end of the pulling and untying rope 22 can be wrapped around the fixed hook 23 for more than 3 turns when binding the pulling and untying rope 22, so as to reduce the pulling on the human hands by the pulling and untying rope 22 at the moment of untying.

[0031] Depend on Figure 7 It can be seen that a first slot 15 extending axially is provided on one side of the supporting sleeve 11, and a Figure 2 a T-shaped operating rod 17 of the connecting rod 18 radially passes through the first slot 15 and the second slot 16 in sequence, and is inserted into the U-shaped groove 20 on the outer wall of the catheter 19 pre-placed in the tube body 12. The main purpose of setting up this structure is to achieve the fixation of the position of the urinary catheter 19 and facilitate the insertion operation, that is, by manually pushing the T-shaped operating rod 17, the urinary catheter 19 is pushed forward through the U-shaped groove 20 matched therewith until it is inserted to the set depth. In order to facilitate the determination of the appropriate insertion depth, this embodiment is provided with a marking ring 33 on the side wall of the urinary catheter 19. Through the first slot 15 and the second slot 16, when the marking ring 33 moves to the scale position corresponding to the scale mark on the supporting sleeve 11, the pushing can be stopped, the T-shaped operating rod 17 is pulled outward to be pulled out of the U-shaped groove 20, and then the tube body 12 is pulled out, that is, the puncture device 10 is pulled out. When the puncture device 10 is pulled out of the body, it is completely separated from the urinary catheter 19. At this time, the plug at the rear end of the urinary catheter 19 is removed and it can be plugged into the urine collection bag.

[0032] In order to ensure that the insertion depth meets the setting, the present embodiment provides a Figure 2 The marking ring 32 shown is used to determine whether to continue inserting by referring to the scale line set on the outer surface of the supporting sleeve 11, and the insertion can be stopped when the depth meets the surgical requirements. According to the usage habits, the marking ring 32 is set between the front end of the catheter and the U-shaped groove 20 in this embodiment.

[0033] In summary, it is not difficult to see that by pre-placing the catheter in the tube body, after the puncture device completes the puncture, manually untie the pulling and unfastening rope 22, slowly release the constraint on the elastic sheet, so that the cone head of the puncture device slowly opens, and then the catheter is inserted through the T-shaped operating rod. It should be noted here that the elastic sheet is generally in the shape of a narrow strip, which ensures that the elastic sheet will not hinder the axial movement of the catheter, and the normal insertion operation of the catheter can be achieved. While inserting, check the relative position of the marking ring 32 and the scale line through the first and second slots to keep track of the insertion depth of the catheter at any time. When it meets the surgical requirements, stop inserting. At this time, pull out the tube body until the tube body is separated from the catheter, then take out the plug cover at the rear end of the catheter, and plug it into the urine collection bag. During the entire operation process, the puncture device has a smooth appearance, without any part that can cause secondary damage to human tissue, and has few components, easy operation, and safety.

Claims

1. A bladder puncture fistula device, comprising a puncture device (10) and a supporting sleeve (11) sleeved outside the puncture device (10), characterized in that: The puncture device (10) is composed of a tube body (12), a first semi-conical tube (13) and a second semi-conical tube (14); The bottom ends of the first semi-conical tube (13) and the second semi-conical tube (14) are respectively hinged to the front end of the tube body (12); The top ends of the first semi-conical tube (13) and the second semi-conical tube (14) are buckled together; A pre-tensioning elastic mechanism is provided between the inner tops of the first semi-conical tube (13) and the second semi-conical tube (14) to repel the first semi-conical tube (13) and the second semi-conical tube (14); A first slot (15) extending axially is provided on one side of the supporting sleeve (11); The tube body (12) is provided with a second slot hole (16) extending axially; A connecting rod (18) of a T-shaped operating rod (17) radially passes through the first slot hole (15) and the second slot hole (16) in sequence, and is then inserted into a U-shaped slot (20) on the outer wall of a urinary catheter (19) pre-placed in the tube body (12).

2. The bladder puncture fistula device according to claim 1, characterized in that: The pre-tensioning elastic mechanism comprises at least one elastic sheet (21) arranged between the inner tops of the first semi-conical tube (13) and the second semi-conical tube (14), a pulling and releasing rope (22) passing through the tube body (12), and a fixing hook (23) fixed to the rear end of the tube body (12); An upper circular hole (24) and a lower circular hole (25) are respectively formed at two ends of the elastic sheet (21); One end of the pulling release rope (22) is fixed on the upper circular hole (24), and the other end passes through the lower circular hole (25), is pulled backward to the rear end of the tube body (12), and is hooked and fixed on the fixing hook (23) after being tensioned.

3. The bladder puncture fistula device according to claim 1 or 2, characterized in that: A semi-sphere (26) is arranged at the top end of the first semi-conical tube (13), which matches with a concave spherical surface (27) arranged at the top end of the second semi-conical tube (14), so that the top end of the first semi-conical tube (13) and the top end of the second semi-conical tube (14) are buckled.

4. The bladder puncture fistula device according to claim 3, characterized in that: A connecting ear (28) is respectively provided at the bottom end of the first semi-conical tube (13) and the second semi-conical tube (14); a countersunk hole (29) corresponding to the connecting ear (28) is provided at the front end of the tube body (12); and a transverse through hole (30) penetrating the outer wall of the tube body (12) is provided on the axial side wall of the countersunk hole (29); The latch pin (31) is inserted from one end of the transverse through hole (30), passes through a connecting ear (28) disposed in the counterbore (29), and then is inserted into the other end of the transverse through hole (30).

5. The bladder puncture fistula device according to claim 1 or 2, characterized in that: A marking ring (32) is arranged on the side wall of the urinary catheter (19).

6. The bladder puncture fistula device according to claim 3, characterized in that: A marking ring (32) is arranged on the side wall of the urinary catheter (19).

7. The bladder puncture fistula device according to claim 4, characterized in that: A marking ring (32) is arranged on the side wall of the urinary catheter (19).

8. A urinary catheter, characterized in that: The outer wall of the urinary catheter is provided with a U-shaped groove (20) whose axis is perpendicular to the axis of the urinary catheter.

9. The urinary catheter according to claim 8, characterized in that: A marking ring (32) is arranged on the side wall of the urinary catheter.

10. The urinary catheter according to claim 9, characterized in that: The marking ring (32) is located between the front end of the urinary catheter and the U-shaped groove (20).

Images