Guide wire lock for endoscope

Abstract

The utility model discloses a guide wire lock for an endoscope. The guide wire lock comprises a shell and a biopsy valve, a biopsy opening is formed in the endoscope handle, a biopsy connector is arranged at the biopsy opening, a boss part protruding outwards in the radial direction and a groove part located below the boss part are arranged on the periphery of the biopsy connector, and the shell comprises a first main body part, a second main body part, a connecting part and a cantilever part. The first main body part is connected with the second main body part through the connecting part, and an upper opening groove located above the connecting part is formed between the upper end of the first main body part and the upper end of the second main body part. And a lower opening groove positioned below the connecting part is formed between the lower end part of the first main body part and the lower end part of the second main body part. The guide wire fixing device can be installed on an endoscope handle and fix the position of a guide wire to prevent the guide wire from shifting, so that the head of the guide wire can be kept and fixed at a preset position in a human body, and position deviation of the head of the guide wire is avoided.

Description

Technical Field

[0001] This utility model relates to a guide wire lock for endoscopes. Background Technology

[0002] Currently, endoscopic surgery typically requires the use of guidewires to precisely guide other surgical instruments to the lesion location. During the procedure, the guidewire is first inserted into the predetermined position within the body through the endoscope handle, and then the surgical instruments can be rapidly advanced into the predetermined position under the guidance of the guidewire. For example, Chinese patent CN108634920A discloses an endoscopic device in which the guidewire can pass through a valve cap and enter the predetermined position within the body via a biopsy port. However, as the surgical instruments enter or exit along the guidewire, they can cause the guidewire to shift, resulting in the guidewire tip deviating from its predetermined position within the body, thus affecting the execution of the surgery. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a guide wire lock for endoscopes. It can be installed on the endoscope handle and fix the position of the guide wire to prevent the guide wire from shifting, thereby keeping the head of the guide wire fixed in a predetermined position inside the human body and avoiding deviation of the guide wire head.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a guide wire lock for an endoscope, including a housing and a biopsy valve;

[0005] The housing is used to be installed and connected to the endoscope handle. The endoscope handle has a biopsy port, and a biopsy connector is provided at the biopsy port. The outer periphery of the biopsy connector has a radially outward protruding boss and a groove located below the boss.

[0006] The housing includes a first main body, a second main body, a connecting part, and a cantilever part;

[0007] The first main body is connected to the second main body through the connecting part. An upper opening groove is provided between the upper end of the first main body and the upper end of the second main body, located above the connecting part. A lower opening groove is provided between the lower end of the first main body and the lower end of the second main body, located below the connecting part.

[0008] The lower end of the first main body is provided with a first locking platform located on one side of the lower opening groove, and the lower end of the second main body is provided with a second locking platform located on the other side of the lower opening groove. The first locking platform and the second locking platform are respectively used to lock into the groove when the biopsy connector is inserted into the lower opening groove, thereby connecting the housing to the biopsy connector.

[0009] The biopsy valve is installed in the housing and is used to press against the biopsy connector to seal and block the biopsy port when the housing is connected to the biopsy connector;

[0010] The cantilever is connected to the upper end of the second main body, and the cantilever is provided with a clamping groove for locking the guide wire to fix the guide wire.

[0011] Furthermore, the upper end of the inner circumference of the biopsy connector is provided with a sealing conical part that is larger at the top and smaller at the bottom, and the lower end of the biopsy valve is provided with a sealing cone that is adapted to the sealing conical part. The sealing cone is used to press against the sealing conical part when the housing is connected to the biopsy connector.

[0012] Furthermore, the housing has an assembly space located between the first main body and the second main body, and the biopsy valve is installed in the assembly space.

[0013] Furthermore, the housing is also provided with a lower limiting part located below the assembly space, and the lower limiting part is provided with a through hole;

[0014] The sealing cone passes through the through hole and abuts against the sealing cone surface, and the lower end of the biopsy valve is provided with a limiting step that abuts against the upper surface of the lower limiting part;

[0015] The upper end of the first main body is provided with a first upper limit portion for abutting against the upper end face of the biopsy valve;

[0016] The upper end of the second main body is provided with a second upper limit part for abutting against the upper end face of the biopsy valve.

[0017] Furthermore, the first card platform is located below the lower limit portion, and a first interlayer cavity is provided between the first card platform and the lower limit portion;

[0018] The second card platform is located below the lower limit portion, and a second interlayer cavity is provided between the second card platform and the lower limit portion.

[0019] Furthermore, two clamping grooves are arranged side by side on the upper side of the cantilever, namely the left clamping groove and the right clamping groove.

[0020] Furthermore, the cantilever section is also provided with a limiting block, a left stop block, and a right stop block;

[0021] The left stop block and the right stop block are arranged side by side. The left stop block is located between the limiting block and the left locking groove, and the right stop block is located between the limiting block and the right locking groove.

[0022] The right end of the left stop has a first protrusion that protrudes to the right, and a first limiting groove is provided between the first protrusion and the cantilever portion.

[0023] The left end of the right stop has a second protrusion that protrudes to the left, and a second limiting groove is provided between the second protrusion and the cantilever portion;

[0024] A gap groove is provided between the first protrusion and the second protrusion;

[0025] The left end of the limiting block has a third protrusion that protrudes to the left, and a third limiting groove is provided between the third protrusion and the cantilever portion;

[0026] The right end of the limiting block has a fourth protrusion that protrudes to the right, and a fourth limiting groove is provided between the fourth protrusion and the cantilever portion.

[0027] Furthermore, the housing includes a left half-shell and a right half-shell, and the left half-shell is connected to the right half-shell;

[0028] A portion of the first main body, a portion of the second main body, a portion of the connecting portion, and a portion of the cantilever portion are all located on the left half-shell, while another portion of the first main body, another portion of the second main body, another portion of the connecting portion, and another portion of the cantilever portion are all located on the right half-shell;

[0029] A portion of the limiting block is located on the left half of the shell, and another portion of the limiting block is located on the right half of the shell;

[0030] The left locking groove and the left stop are connected to the left half shell, and the right locking groove and the right stop are connected to the right half shell.

[0031] Furthermore, the left half shell is provided with a plurality of connection holes, and the right half shell is provided with connection pins corresponding to the connection holes one by one. The connection pins are used to be inserted into the corresponding connection holes to connect the left half shell and the right half shell.

[0032] Furthermore, the endoscope handle also has a mounting plane.

[0033] The groove portion is located between the boss portion and the mounting plane portion;

[0034] The lower end face of the first main body and the lower end face of the second main body are respectively used to abut against the mounting plane when the housing is connected to the biopsy connector.

[0035] After adopting the above technical solution, during use, pressing the upper ends of the first main body and the second main body inward causes the housing to deform to a certain extent, with the upper opening groove shrinking inward and the lower opening groove expanding outward. Then, the biopsy connector is inserted into the expanded lower opening groove, and the biopsy valve is pressed against the biopsy connector. The pressing on the upper ends of the first and second main bodies is then released to allow the housing to return to its original deformation state. At this point, the first and second locking sections respectively engage inward in the groove, thereby locking the housing securely onto the biopsy connector. Simultaneously, the biopsy valve seals the biopsy port. After installation, the guidewire tip can pass through the biopsy valve and then extend into the endoscope handle from the biopsy port to the predetermined position in the human body. The tail of the guidewire is then clamped into the clamping groove to fix the tail of the guidewire. By locking the housing onto the biopsy connector on the endoscope handle and fixing the tail of the guidewire, displacement of the guidewire is prevented. This ensures that the guidewire tip remains fixed in the predetermined position in the human body, preventing deviation of the guidewire tip. The installation is very convenient and the connection is secure. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the guide wire lock for endoscope of this utility model when it is separated from the endoscope handle;

[0037] Figure 2 This is a schematic diagram of the assembly of the guide wire lock and endoscope handle of the present invention.

[0038] Figure 3 This is an exploded view of the assembly of the guidewire lock for endoscope according to the present invention.

[0039] Figure 4 This is a schematic diagram of the guidewire lock for endoscope according to the present invention;

[0040] Figure 5 This is a cross-sectional view of the guidewire lock for endoscope according to the present invention;

[0041] Figure 6 This is a schematic diagram of the shell structure of this utility model. Figure 1 ;

[0042] Figure 7 This is a schematic diagram of the shell structure of this utility model. Figure 2 . Detailed Implementation

[0043] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0044] like Figures 1-7 As shown, a guidewire lock for an endoscope includes a housing 1 and a biopsy valve 2;

[0045] The housing 1 is used to be installed and connected to the endoscope handle 3. The endoscope handle 3 has a biopsy port 4. The biopsy port 4 is provided with a biopsy connector 5. The outer periphery of the biopsy connector 5 is provided with a boss portion 6 that protrudes radially outward and a groove portion 7 located below the boss portion 6.

[0046] The housing 1 includes a first main body 8, a second main body 9, a connecting part 10, and a cantilever part 11;

[0047] The first main body 8 is connected to the second main body 9 through the connecting part 10. An upper opening groove 12 located above the connecting part 10 is provided between the upper end of the first main body 8 and the upper end of the second main body 9. A lower opening groove 13 located below the connecting part 10 is provided between the lower end of the first main body 8 and the lower end of the second main body 9.

[0048] The lower end of the first main body 8 is provided with a first locking platform 14 located on one side of the lower opening groove 13, and the lower end of the second main body 9 is provided with a second locking platform 15 located on the other side of the lower opening groove 13. The first locking platform 14 and the second locking platform 15 are respectively used to lock into the groove 7 when the biopsy connector 5 is inserted into the lower opening groove 13, thereby connecting the housing 1 to the biopsy connector 5.

[0049] The biopsy valve 2 is installed in the housing 1 and is used to press against the biopsy connector 5 to seal and block the biopsy port 4 when the housing 1 is connected to the biopsy connector 5;

[0050] The cantilever portion 11 is connected to the upper end of the second main body portion 9, and the cantilever portion 11 is provided with a clamping groove for clamping the guide wire 16 to fix the guide wire 16.

[0051] Specifically, during use, the upper ends of the first main body 8 and the second main body 9 are pressed inwards. At this time, the housing 1 will deform to a certain extent, and the upper opening groove 12 will shrink inwards while the lower opening groove 13 will expand outwards. Then, the biopsy connector 5 is inserted into the expanded and deformed lower opening groove 13 and the biopsy valve 2 is pressed against the biopsy connector 5. Then, the pressing on the upper ends of the first main body 8 and the second main body 9 is released to allow the housing 1 to deform and return to its original position. At this time, the first locking part 14 and the second locking part 15 are respectively inserted into the groove part 7, thereby locking the housing 1 tightly onto the biopsy connector 5. At the same time, the biopsy valve 2 seals and blocks the biopsy port 4. After installation, the head of the guidewire 16 can pass through the biopsy valve 2 and then extend from the biopsy port 4 into the endoscope handle 3 and into the predetermined position in the human body. Then, the tail of the guidewire 16 is locked in the locking groove to fix the tail of the guidewire 16. By locking the housing 1 onto the biopsy connector 5 on the endoscope handle 3 and fixing the tail of the guidewire 16, displacement of the guidewire 16 is prevented. This ensures that the head of the guidewire 16 is fixed in the predetermined position in the human body, avoiding deviation of the guidewire 16 head. The installation is very convenient and the connection is firm.

[0052] like Figure 1 , 5 As shown, the upper end of the inner circumference of the biopsy connector 5 is provided with a sealing conical part 17 that is larger at the top and smaller at the bottom. The lower end of the biopsy valve 2 is provided with a sealing cone 18 that is adapted to the sealing conical part 17. The sealing cone 18 is used to press against the sealing conical part 17 when the housing 1 is connected to the biopsy connector 5, thereby sealing and blocking the biopsy port 4. Specifically, the sealing cone 18 pressing against the sealing conical part 17 can also play a positioning role and can lock the housing 1 on the biopsy connector 5 to prevent the housing 1 from shifting.

[0053] like Figures 1-7 As shown, the housing 1 has an assembly space 19 located between the first main body 8 and the second main body 9, and the biopsy valve 2 is installed in the assembly space 19.

[0054] like Figure 3 , 5 As shown in Figures 6 and 7, the housing 1 is also provided with a lower limiting part 20 located below the assembly space 19, and the lower limiting part 20 is provided with a through hole 21;

[0055] The sealing cone 18 passes through the through hole 21 and abuts against the sealing cone part 17. The lower end of the biopsy valve 2 is provided with a limiting step 22 that abuts against the upper surface of the lower limiting part 20.

[0056] The upper end of the first main body 8 is provided with a first upper limit part 23 for abutting against the upper end face of the biopsy valve 2;

[0057] The upper end of the second main body 9 is provided with a second upper limit part 24 for abutting against the upper end face of the biopsy valve 2. The biopsy valve 2 can be confined in the assembly space 19 by the first upper limit part 23 and the second upper limit part 24. Specifically, the biopsy valve 2 is made of silicone.

[0058] like Figure 3 , 5 As shown, the first card platform 14 is located below the lower limit portion 20, and a first interlayer cavity 25 is provided between the first card platform 14 and the lower limit portion 20.

[0059] The second card platform 15 is located below the lower limit portion 20, and a second interlayer cavity 26 is provided between the second card platform 15 and the lower limit portion 20.

[0060] like Figures 1-4 As shown in Figures 6 and 7, two clamping grooves are arranged side by side on the cantilever portion 11, namely the left clamping groove 27 and the right clamping groove 28.

[0061] like Figures 1-4 As shown in Figures 6 and 7, the cantilever 11 is also provided with a limiting block 29, a left stop block 30 and a right stop block 31;

[0062] The left stop block 30 and the right stop block 31 are arranged side by side. The left stop block 30 is located between the limiting block 29 and the left locking groove 27, and the right stop block 31 is located between the limiting block 29 and the right locking groove 28.

[0063] The right end of the left stop block 30 has a first protrusion that protrudes to the right, and a first limiting groove 32 is provided between the first protrusion and the cantilever portion 11.

[0064] The left end of the right stop block 31 has a second protrusion that protrudes to the left, and a second limiting groove 33 is provided between the second protrusion and the cantilever portion 11;

[0065] A gap groove 34 is provided between the first protrusion and the second protrusion so that the guide wire 16 can pass through the gap groove 34 and be inserted into the first limiting groove 32 or the second limiting groove 33;

[0066] The left end of the limiting block 29 has a third protrusion that protrudes to the left, and a third limiting groove 35 is provided between the third protrusion and the cantilever portion 11;

[0067] The right end of the limiting block 29 has a fourth protrusion protruding to the right, and a fourth limiting groove 36 is provided between the fourth protrusion and the cantilever part 11. Specifically, the head of the guide wire 16 can pass through the biopsy valve 2 and then extend from the biopsy port 4 into the endoscope handle 3 and then into a predetermined position in the human body. Then, the tail of the guide wire 16 is sequentially inserted into the third limiting groove 35, the first limiting groove 32 and the left clamping groove 27 to fix the tail of the guide wire 16. Alternatively, the tail of the guide wire 16 can be sequentially inserted into the fourth limiting groove 36, the second limiting groove 33 and the right clamping groove 28 to fix the tail of the guide wire 16.

[0068] like Figure 3 As shown, the housing 1 may include a left half-shell 37 and a right half-shell 38, with the left half-shell 37 connected to the right half-shell 38;

[0069] A portion of the first main body 8, a portion of the second main body 9, a portion of the connecting portion 10, and a portion of the cantilever portion 11 are all located on the left half shell 37, while another portion of the first main body 8, another portion of the second main body 9, another portion of the connecting portion 10, and another portion of the cantilever portion 11 are all located on the right half shell 38.

[0070] A portion of the limiting block 29 is located on the left half shell 37, and another portion of the limiting block 29 is located on the right half shell 38;

[0071] The left locking groove 27 and the left stop block 30 are connected to the left half shell 37, and the right locking groove 28 and the right stop block 31 are connected to the right half shell 38.

[0072] like Figure 3 As shown, the left half shell 37 is provided with a plurality of connection holes 39, and the right half shell 38 is provided with connection pins 40 corresponding to the connection holes 39 one by one. The connection pins 40 are used to be inserted into the corresponding connection holes 39 to connect the left half shell 37 and the right half shell 38, thereby combining the left half shell 37 and the right half shell 38 to form the shell 1.

[0073] like Figure 1 , 5 As shown, the endoscope handle 3 also has a mounting surface portion 41;

[0074] The groove portion 7 is located between the boss portion 6 and the mounting plane portion 41;

[0075] The lower end face of the first main body part 8 and the lower end face of the second main body part 9 are respectively used to abut against the mounting plane part 41 when the housing 1 is connected to the biopsy connector 5.

[0076] In summary, during use, pressing the upper ends of the first main body 8 and the second main body 9 inward causes the housing 1 to deform to a certain extent, with the upper opening groove 12 contracting inward and the lower opening groove 13 expanding outward. Then, the biopsy connector 5 is inserted into the expanded and deformed lower opening groove 13, and the biopsy valve 2 is pressed against the biopsy connector 5. The pressing on the upper ends of the first main body 8 and the second main body 9 is then released to allow the housing 1 to return to its original deformation state. At this point, the first locking portion 14 and the second locking portion 15 respectively engage inward in the groove portion 7, thereby locking the housing 1 securely to the biopsy connector 5. Simultaneously, the biopsy valve 2 seals the biopsy port 4. After installation, the head of the guidewire 16 can pass through the biopsy valve 2 and then extend from the biopsy port 4 into the endoscope handle 3 and into the predetermined position in the human body. Then, the tail of the guidewire 16 is locked in the locking groove to fix the tail of the guidewire 16. By locking the housing 1 onto the biopsy connector 5 on the endoscope handle 3 and fixing the tail of the guidewire 16, displacement of the guidewire 16 is prevented. This ensures that the head of the guidewire 16 is fixed in the predetermined position in the human body, avoiding deviation of the guidewire 16 head. The installation is very convenient and the connection is firm.

[0077] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A guidewire lock for an endoscope, characterized in that, Includes a housing (1) and a biopsy valve (2); The housing (1) is used to be installed and connected to the endoscope handle (3). The endoscope handle (3) has a biopsy port (4). A biopsy connector (5) is provided at the biopsy port (4). The outer periphery of the biopsy connector (5) is provided with a boss (6) that protrudes radially outward and a groove (7) located below the boss (6). The housing (1) includes a first main body (8), a second main body (9), a connecting part (10), and a cantilever part (11); The first main body (8) is connected to the second main body (9) through the connecting part (10). An upper opening groove (12) located above the connecting part (10) is provided between the upper end of the first main body (8) and the upper end of the second main body (9). A lower opening groove (13) located below the connecting part (10) is provided between the lower end of the first main body (8) and the lower end of the second main body (9). The lower end of the first main body (8) is provided with a first locking plate (14) located on one side of the lower opening groove (13), and the lower end of the second main body (9) is provided with a second locking plate (15) located on the other side of the lower opening groove (13). The first locking plate (14) and the second locking plate (15) are respectively used to lock into the groove (7) when the biopsy connector (5) is inserted into the lower opening groove (13), thereby connecting the housing (1) to the biopsy connector (5). The biopsy valve (2) is installed in the housing (1) and is used to press against the biopsy connector (5) to seal and block the biopsy port (4) when the housing (1) is connected to the biopsy connector (5); The cantilever (11) is connected to the upper end of the second main body (9), and the cantilever (11) is provided with a clamping groove for clamping the guide wire (16) to fix the guide wire (16).

2. The guidewire lock for an endoscope according to claim 1, characterized in that, The upper end of the inner periphery of the biopsy connector (5) is provided with a sealing cone section (17) that is larger at the top and smaller at the bottom. The lower end of the biopsy valve (2) is provided with a sealing cone head (18) that is adapted to the sealing cone section (17). The sealing cone head (18) is used to press against the sealing cone section (17) when the housing (1) is connected to the biopsy connector (5).

3. The guidewire lock for an endoscope according to claim 2, characterized in that, The housing (1) has an assembly space (19) located between the first main body (8) and the second main body (9), and the biopsy valve (2) is installed in the assembly space (19).

4. The guidewire lock for an endoscope according to claim 3, characterized in that, The housing (1) is also provided with a lower limiting part (20) located below the assembly space (19), and the lower limiting part (20) is provided with a through hole (21); The sealing cone (18) passes through the through hole (21) and abuts against the sealing cone part (17). The lower end of the biopsy valve (2) is provided with a limiting step (22) that abuts against the upper surface of the lower limiting part (20). The upper end of the first main body (8) is provided with a first upper limit part (23) for abutting against the upper end face of the biopsy valve (2); The upper end of the second main body (9) is provided with a second upper limit part (24) for abutting against the upper end face of the biopsy valve (2).

5. The guidewire lock for an endoscope according to claim 4, characterized in that, The first card platform (14) is located below the lower limit part (20), and a first interlayer cavity (25) is provided between the first card platform (14) and the lower limit part (20); The second card plate portion (15) is located below the lower limit portion (20), and a second interlayer cavity (26) is provided between the second card plate portion (15) and the lower limit portion (20).

6. The guidewire lock for an endoscope according to claim 1, characterized in that, The cantilever (11) is provided with two locking grooves arranged side by side on the left and right, namely the left locking groove (27) and the right locking groove (28).

7. The guidewire lock for an endoscope according to claim 6, characterized in that, The cantilever (11) is also provided with a limiting block (29), a left stop block (30) and a right stop block (31); The left stop block (30) and the right stop block (31) are arranged side by side. The left stop block (30) is located between the limiting block (29) and the left locking groove (27), and the right stop block (31) is located between the limiting block (29) and the right locking groove (28). The right end of the left stop block (30) has a first protrusion protruding to the right, and a first limiting groove (32) is provided between the first protrusion and the cantilever part (11); The left end of the right stop block (31) has a second protrusion protruding to the left, and a second limiting groove (33) is provided between the second protrusion and the cantilever part (11); A gap groove (34) is provided between the first protrusion and the second protrusion; The left end of the limiting block (29) has a third protrusion protruding to the left, and a third limiting groove (35) is provided between the third protrusion and the cantilever (11); The right end of the limiting block (29) has a fourth protrusion protruding to the right, and a fourth limiting groove (36) is provided between the fourth protrusion and the cantilever (11).

8. The guidewire lock for an endoscope according to claim 7, characterized in that, The housing (1) includes a left half-shell (37) and a right half-shell (38), wherein the left half-shell (37) is connected to the right half-shell (38); A portion of the first main body (8), a portion of the second main body (9), a portion of the connecting portion (10), and a portion of the cantilever portion (11) are all located on the left half shell (37), and another portion of the first main body (8), another portion of the second main body (9), another portion of the connecting portion (10), and another portion of the cantilever portion (11) are all located on the right half shell (38); A portion of the limiting block (29) is located on the left half shell (37), and another portion of the limiting block (29) is located on the right half shell (38). The left locking groove (27) and the left stop block (30) are connected to the left half shell (37), and the right locking groove (28) and the right stop block (31) are connected to the right half shell (38).

9. The guidewire lock for an endoscope according to claim 8, characterized in that, The left half shell (37) is provided with a plurality of connection holes (39), and the right half shell (38) is provided with connection pins (40) corresponding to the connection holes (39). The connection pins (40) are used to be inserted into the corresponding connection holes (39) to connect the left half shell (37) and the right half shell (38).

10. The guidewire lock for an endoscope according to claim 1, characterized in that, The endoscope handle (3) also has a mounting surface (41); The groove (7) is located between the boss (6) and the mounting plane (41); The lower end face of the first main body (8) and the lower end face of the second main body (9) are respectively used to abut against the mounting plane (41) when the housing (1) is connected to the biopsy connector (5).

Images