Disposable guide wire for urinary tract

Abstract

The utility model discloses a disposable guide wire for a urinary tract, and belongs to the auxiliary field of urinary tract treatment. The guide wire comprises a guide wire structure, the head end comprises a built-in layer and an outer protective ball arranged on the outer surface of the built-in layer, adhesion layers are coated on the outer wall of the built-in layer and the inner wall of the outer protective ball, and a tough wire is arranged between the built-in layer and the outer protective ball. The guide wire structure is soaked in normal saline, the normal saline flows through the interior of the guide groove and is absorbed by the moisture absorption layer, after the guide wire structure is inserted into the urethra, when the head end is extruded by the inner wall of the urethra, the outer protection ball and the tough wire deform, force applied to a wound by the head end is reduced, the head end can move conveniently through the arranged smooth coating, and the wound can be prevented from being damaged. Tissue fluid generated by the inner wall of the urethra dissolves the polylactic acid ring, the urethra shrinks when a foreign matter is inserted into the urethra, the moisture absorption layer is extruded by the urethra to extrude normal saline, the normal saline sterilizes the urethra in the urethra, the urethra is prevented from being damaged by a guide wire structure, and the urethra protection device has the advantage of protecting the urethra of a patient.

Description

Technical Field

[0001] The utility model belongs to the field of urinary tract treatment aids, and specifically relates to a disposable urinary tract guide wire. Background Art

[0002] A urinary tract guide wire is a medical device used in the urinary system, usually used in urology and interventional therapy to assist doctors in performing various diagnostic and treatment operations. The guide wire is a very slender and flexible metal wire or plastic wire through which other medical devices (such as catheters, endoscopes, etc.) can be guided to specific parts of the urinary tract.

[0003] The existing Chinese patent with the publication number CN219804123U discloses a urinary tract guide wire, which includes a core wire, a winding wire and a tip; a spherical opening is provided at the head end of the tip, and a threaded structure with high hardness heat treatment is provided in the middle section and the tail section of the tip; the tail section of the tip is welded to the proximal end of the core wire; the winding wire is wound around the surface of the proximal end of the core wire; PTFE coatings are applied to the middle section and the distal end surfaces of the core wire; a hydrophilic coating is applied to the surface of the winding wire; the distal end of the core wire is connected to a catheter. The cooperation of the spherical opening at the tip and the threaded structure with high hardness heat treatment of this urinary tract guide wire can facilitate reducing resistance when entering the patient's urinary tract while reducing the risk of the guide wire breaking during use, and reducing friction and wear. The selection of the hydrophilic coating and the PTFE coating on the surfaces of the core wire and the winding wire can effectively reduce the trauma to the urethra or bladder wall during insertion and catheter removal, and these designs are convenient for the subsequent rehabilitation of the patient.

[0004] In view of the above related technologies, the head end of the guide wire is spherical. When inserted into the patient's body, since the inside of the head end is not hollow, the inner wall of the patient's urethra cannot judge whether there are wounds. As a result, when the doctor inserts the guide wire and the head end contacts the wound, it will cause pain to the patient and is inconvenient to use.

[0005] Therefore, we propose a disposable urinary tract guide wire to solve the problems raised above. Summary of the Utility Model

[0006] Aiming at the above problems existing in the prior art, the purpose of the present utility model is to provide a disposable urinary tract guide wire.

[0007] To solve the above problems, the technical solution adopted by the present utility model is as follows: a disposable urinary tract guide wire, including a guide wire structure, the guide wire structure includes a leading end and a head end installed at one end of the leading end, and a sealing ring is installed between the leading end and the head end;

[0008] The head end includes an inner layer and an outer protective ball provided on the outer surface of the inner layer. Adhesive layers are coated on the outer wall of the inner layer and the inner wall of the outer protective ball, and a toughness wire is installed between the inner layer and the outer protective ball.

[0009] Preferably, the built-in layer includes hollow marbles and a polytetrafluoroethylene coating provided on the outer surface of the hollow marbles.

[0010] Preferably, the outer protective ball includes a spherical body and a smooth coating provided on the outer surface of the spherical body, and an antibacterial layer is provided on the outer surface of the smooth coating.

[0011] Preferably, a spiral groove is formed on the outer surface of the leading end, and a moisture absorption layer is provided on the outer surface of the leading end inside the spiral groove.

[0012] Preferably, a guiding groove is formed on the outer surface of the leading end, and one end of the guiding groove is located on the outer surface of the moisture absorption layer.

[0013] Preferably, a polylactic acid ring is sleeved inside the spiral groove on the outer side of the moisture absorption layer.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] (1) For the single-use urethral guide wire provided by the present utility model, after the guide wire structure is inserted into the urethra, when the head end is squeezed by the inner wall of the urethra, the outer protective ball and the resilient wire are deformed, reducing the force exerted by the head end on the wound, and the provided smooth coating facilitates the movement of the head end.

[0016] (2) For the single-use urethral guide wire provided by the present utility model, before inserting it into the urethra, the guide wire structure is first immersed in physiological saline. The physiological saline flows through the inside of the guiding groove and is absorbed by the moisture absorption layer. The tissue fluid generated by the inner wall of the urethra dissolves the polylactic acid ring. When a foreign object is inserted into the urethra, the urethra will contract, and the moisture absorption layer is squeezed by the urethra to squeeze out the physiological saline. The physiological saline disinfects the urethra, avoiding damage to the urethra caused by the guide wire structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the head end structure of the present utility model;

[0019] Figure 3 is a schematic diagram of the outer protective ball structure of the present utility model;

[0020] Figure 4 is a schematic diagram of the leading end structure of the present utility model.

[0021] In the figure: 1. Guide wire structure; 11. Head end; 111. Inner layer; 1111. Hollow ball; 1112. Polytetrafluoroethylene coating; 112. Sealing ring; 113. Tough wire; 114. Outer protective ball; 1141. Ball body; 1142. Smooth coating; 1143. Antibacterial layer; 115. Adhesive layer; 12. Leading end; 121. Moisture-absorbing layer; 122. Spiral groove; 123. Polylactic acid loop; 124. Leading groove. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1: Please refer to Figures 1 - 3 , a single-use urethral guide wire, including a guide wire structure 1, the guide wire structure 1 includes a leading end 12 and a head end 11 installed at one end of the leading end 12, and a sealing ring 112 is installed between the leading end 12 and the head end 11.

[0024] The head end 11 includes an inner layer 111 and an outer protective ball 114 arranged on the outer surface of the inner layer 111. The outer walls of the inner layer 111 and the inner wall of the outer protective ball 114 are both coated with an adhesive layer 115. A tough wire 113 is installed between the inner layer 111 and the outer protective ball 114, and both ends of the tough wire 113 are adhered to the outer wall of the inner layer 111 and the inner wall of the outer protective ball 114 through the adhesive layer 115

[0025] The inner layer 111 includes a hollow ball 1111 and a polytetrafluoroethylene coating 1112 arranged on the outer surface of the hollow ball 1111. There is gas inside the hollow ball 1111, and the arranged polytetrafluoroethylene coating 1112 will prevent the hollow ball 1111 from being scratched by the tough wire 113

[0026] The outer protective ball 114 includes a ball body 1141 and a smooth coating 1142 arranged on the outer surface of the ball body 1141. An antibacterial layer 1143 is arranged on the outer surface of the smooth coating 1142. The arranged smooth coating 1142 will increase the smoothness of the movement of the head end 11 in the urethra, and the antibacterial layer 1143 will prevent the bacteria in the urethra from moving to other organs

[0027] In this embodiment: When the head end 11 is inserted into the urethra, the outer protection ball 114 contacts the inner wall of the urethra. When the head end 11 is squeezed by the inner wall of the urethra, the outer protection ball 114 and the resilient wire 113 are deformed, reducing the force exerted by the head end 11 on the wound. The gas is inside the hollow ball 1111, restricting the deformation range of the outer protection ball 114 and the resilient wire 113. The provided polytetrafluoroethylene coating 1112 increases the toughness of the hollow ball 1111, preventing damage to the hollow ball 1111 when the resilient wire 113 is deformed. The provided smooth coating 1142 facilitates the movement of the head end 11, and the provided antibacterial layer 1143 prevents bacteria in the urethra from being brought into other organs as the head end 11 moves.

[0028] Embodiment Two: Please refer to Figure 4 , a spiral groove 122 is formed on the outer surface of the leading end 12, and a moisture absorption layer 121 is provided on the outer surface of the leading end 12 inside the spiral groove 122. When using the guide wire structure 1, the guide wire structure 1 can be immersed in physiological saline, and the moisture absorption layer 121 absorbs the physiological saline.

[0029] A guiding groove 124 is formed on the outer surface of the leading end 12, and one end of the guiding groove 124 is located on the outer surface of the moisture absorption layer 121. The physiological saline flows through the inside of the guiding groove 124 and is absorbed by the moisture absorption layer 121.

[0030] A polylactic acid ring 123 is sleeved inside the spiral groove 122 on the outer side of the moisture absorption layer 121. When the polylactic acid ring 123 is in the urethra, it is dissolved by the tissue fluid generated by the inner wall of the urethra, and the inner wall of the urethra can absorb the dissolved polylactic acid ring 123.

[0031] In this embodiment: Before inserting into the urethra, first immerse the guide wire structure 1 in physiological saline. The physiological saline flows through the inside of the guiding groove 124 and is absorbed by the moisture absorption layer 121. After inserting the guide wire structure 1 into the urethra, the tissue fluid generated by the inner wall of the urethra dissolves the polylactic acid ring 123. When a foreign object is inserted into the urethra, it will contract, and the moisture absorption layer 121 is squeezed by the urethra and squeezes out the physiological saline. The physiological saline disinfects in the urethra, preventing the guide wire structure 1 from damaging the urethra.

[0032] Working principle: Immerse the guide wire structure 1 in physiological saline. The physiological saline flows through the inside of the guiding groove 124 and is absorbed by the moisture absorption layer 121. The outer protection ball 114 and the resilient wire 113 are deformed, reducing the force exerted by the head end 11 on the wound. The tissue fluid dissolves the polylactic acid ring 123, and the physiological saline disinfects in the urethra, ensuring safe use.

[0033] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0034] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A disposable urinary tract guidewire, comprising a guidewire structure (1), characterized in that: The guide wire structure (1) comprises a lead end (12) and a head end (11) installed at one end of the lead end (12), and a sealing ring (112) is installed between the lead end (12) and the head end (11); The head end (11) comprises an inner layer (111) and an outer protective ball (114) arranged on the outer surface of the inner layer (111); the outer wall of the inner layer (111) and the inner wall of the outer protective ball (114) are both coated with an adhesive layer (115); and a tough wire (113) is installed between the inner layer (111) and the outer protective ball (114).

2. The disposable urinary tract guidewire according to claim 1, characterized in that: The built-in layer (111) comprises a hollow marble (1111) and a polytetrafluoroethylene coating (1112) arranged on the outer surface of the hollow marble (1111).

3. The disposable urinary tract guidewire according to claim 1, characterized in that: The outer protective ball (114) comprises a sphere (1141) and a smooth coating (1142) arranged on the outer surface of the sphere (1141), and an antibacterial layer (1143) is arranged on the outer surface of the smooth coating (1142).

4. The disposable urinary tract guidewire according to claim 1, characterized in that: The outer surface of the lead end (12) is provided with a spiral groove (122), and a moisture absorbing layer (121) is provided inside the spiral groove (122) and on the outer surface of the lead end (12).

5. The disposable urinary tract guidewire according to claim 4, characterized in that: A guide groove (124) is provided on the outer surface of the guide end (12), and one end of the guide groove (124) is located on the outer surface of the moisture absorption layer (121).

6. The disposable urinary tract guidewire according to claim 5, characterized in that: A polylactic acid ring (123) is sheathed on the outside of the moisture absorbing layer (121) and inside the spiral groove (122).

Images