Urethra distraction device

Abstract

The utility model discloses a urethra distraction device, and particularly relates to the field of medical instruments. The urethra distraction device comprises a hole closing device, an eight-claw distraction sheath and an outer sheath, the eight-claw distraction sheath is arranged on the hole closing device in a sleeved mode, a plurality of tooth-shaped structures are arranged at the front end of the eight-claw distraction sheath, a spacing groove allowing needles and threads to enter is formed between every two adjacent tooth-shaped structures, and the outer sheath is arranged in the spacing groove. And the outer sheath is arranged outside the eight-claw opening sheath.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, and in particular to a urethra dilating device. Background Art

[0002] During radical prostatectomy, the connection between the urethra and the bladder is cut off. At the end of the operation, the urethra and the bladder must be sutured to reconnect them. When the urethra is separated from the bladder, the urethra will shrink, resulting in no space for the needle and thread to enter during suturing, so a catheter must be used for expansion. However, existing catheters do not have a position for needle and thread suturing, so they need to be withdrawn repeatedly to allow the needle and thread to enter, which is extremely inconvenient and has low suturing efficiency. Utility Model Content

[0003] The purpose of the utility model is to overcome the above technical problems and provide a urethra dilating device.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a urethral dilation device, including an obturator, an octaplon dilation sheath, and an outer sheath, wherein the octaplon dilation sheath is sleeved on the obturator, a plurality of tooth-like structures are provided at the front end of the octaplon dilation sheath, a spacing groove for needle and thread to enter is formed between two adjacent tooth-like structures, and the outer sheath is arranged outside the octaplon dilation sheath.

[0005] Furthermore, the length of the tooth-like structure is 1 cm.

[0006] Furthermore, a conical head is provided at the front end of the obturator.

[0007] Furthermore, the rear end of the outer sheath is provided with an inverted cone-shaped guiding structure for guiding the octopus to open the sheath and enter the outer sheath.

[0008] Furthermore, the rear end of the obturator is provided with an auxiliary piece for assisting in withdrawing the obturator.

[0009] Furthermore, the diameter of the octopus-opening sheath is 6-8 mm.

[0010] Furthermore, the length of the octopus opening the sheath is 24 cm or 27 cm.

[0011] Furthermore, the length of the octopus opening the sheath is 1-2 cm longer than the length of the outer sheath.

[0012] Furthermore, the octopus opens its sheath to appear white or sky blue.

[0013] From the above description of the utility model, it can be seen that compared with the prior art, the urethral dilation device provided by the utility model has the following advantages: the obturator, the octopus dilation sheath and the outer sheath are nested in sequence from the inside to the outside to form a whole, and are inserted through the urethral opening of the penis, with the front end reaching the junction of the bladder and the urethra, and then the obturator is pulled out and the outer sheath is withdrawn 1 cm, so that the multiple tooth-shaped structures of the octopus dilation sheath are exposed. Since the front end of the octopus dilation sheath is provided with multiple tooth-shaped structures, and a spacing groove for needle and thread to enter is formed between two adjacent tooth-shaped structures, when suturing, the needle and thread can enter the suture through the spacing groove, avoiding the need to repeatedly withdraw the catheter to allow the needle and thread to enter the suture, making suturing more convenient and quick, and improving suturing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded view of the urethral dilator of the present invention.

[0015] Figure 2 The figure is a schematic diagram of the overall structure of the urethra dilator of the present invention.

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present utility model.

[0018] Reference Figure 1-Figure 3 As shown, a urethral dilation device comprises an obturator 1, an octopus dilation sheath 2, and an outer sheath 3. The octopus dilation sheath 2 is sleeved on the obturator 1. The front end of the octopus dilation sheath 2 is provided with a plurality of tooth structures 21. A spacing groove 22 for needle and thread to enter is formed between two adjacent tooth structures 21. The outer sheath 3 is sleeved on the octopus dilation sheath 2. The number of the tooth structures 21 is 8.

[0019] Specifically, the obturator 1, the octopus-opening sheath 2 and the outer sheath 3 are nested in sequence from the inside to the outside to form a whole, and are inserted through the urethral opening of the penis, with the front end reaching the junction of the bladder and the urethra. Then the obturator 1 is pulled out and the outer sheath 3 is withdrawn 1 cm backward, so that the multiple tooth-shaped structures of the octopus-opening sheath 2 are exposed. Since the front end of the octopus-opening sheath 2 is provided with multiple tooth-shaped structures, and a spacing groove 22 for needle and thread to enter is formed between two adjacent tooth-shaped structures 21, when suturing, the needle and thread can enter the suture through the spacing groove 22, avoiding the need to repeatedly withdraw to allow the needle and thread to enter the suture, making suturing more convenient and quick, and improving suturing efficiency.

[0020] The length of the toothed structure 21 is 1 cm.

[0021] The front end of the obturator 1 is provided with a conical head 11, which is used to gradually expand the urethra to prevent the front ends of the octopus expansion sheath 2 and the outer sheath 3 from damaging the urethra and causing urethral skin breakage and bleeding.

[0022] The rear end of the outer sheath 3 is provided with an inverted cone-shaped guiding structure 31 for guiding the octopus-opened sheath 2 to enter the outer sheath 3 .

[0023] The rear end of the obturator 1 is provided with an auxiliary piece 12 for assisting in pulling out the obturator 1, and the surface of the auxiliary piece 12 is provided with a plurality of small grooves for increasing the friction between the fingers and the auxiliary piece 12. When in use, the auxiliary piece 12 is pinched by hand and pulled backwards to pull out the obturator 1.

[0024] The diameter of the octopus-opening sheath 2 is 6-8 mm.

[0025] The length of the octopus-opening sheath 2 is 24 cm or 27 cm.

[0026] The length of the octopus-opened sheath 2 is 1-2 cm longer than the length of the outer sheath 3 .

[0027] The octopus opening sheath 2 is white or sky blue, or other colors that can be distinguished from human tissue.

[0028] The above are only some specific implementation methods of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A urethral dilation device, characterized in that: It includes an obturator, an octaplon sheath and an outer sheath. The octaplon sheath is sleeved on the obturator. A plurality of tooth structures are provided at the front end of the octaplon sheath. A spacing groove for needle and thread to enter is formed between two adjacent tooth structures. The outer sheath is arranged outside the octaplon sheath.

2. The urethral distraction device according to claim 1, characterized in that: The length of the tooth-like structure is 1 cm.

3. The urethral dilation device according to claim 2, characterized in that: The front end of the obturator is provided with a conical head.

4. The urethral dilation device according to claim 3, characterized in that: The rear end of the outer sheath is provided with an inverted cone-shaped guiding structure for guiding the octopus to open the sheath and enter the outer sheath.

5. The urethral dilation device according to claim 4, characterized in that: An auxiliary piece for assisting in pulling out the obturator is disposed at the rear end of the obturator.

6. The urethral dilation device according to claim 5, characterized in that: The diameter of the octopus-opened sheath is 6-8 mm.

7. The urethral dilation device according to claim 6, characterized in that: The length of the octopus opening the sheath is 24 cm or 27 cm.

8. The urethral dilation device according to claim 7, characterized in that: The length of the octopus opening the sheath is 1-2 cm longer than the length of the outer sheath.

9. The urethral dilation device according to claim 8, characterized in that: The octopus opens its sheath to appear white or sky blue.

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