Guide wire locking device for endoscope

Abstract

The utility model discloses a guide wire locking device for an endoscope. The guide wire locking device comprises a main body seat, a biopsy valve, a driving mechanism and a clip, a mounting connector is arranged in the endoscope handle, a biopsy channel is arranged in the mounting connector, a limiting clamping groove is formed in the peripheral portion of the mounting connector, a cantilever portion used for fixing a guide wire is arranged on the main body seat, a mounting hole is formed in the lower end portion of the main body seat, and the mounting connector extends into the mounting hole. The biopsy valve is connected in the main body seat and is used for abutting against the mounting joint to seal and block the biopsy channel; the clamp is slidably connected to the lower end of the main body base in the radial direction, and the driving mechanism is used for driving the clamp to slide inwards in the radial direction till the clamp is clamped into the limiting clamping groove after the installation connector stretches into the installation hole. According to the utility model, the stability and firmness of the connection on the endoscope handle can be improved, the problems of loosening and displacement can be avoided, and further, the guide wire can be prevented from shifting and deviating from a preset position.

Description

TECHNICAL FIELD

[0001] The utility model relates to a guide wire locking device for endoscope. BACKGROUND

[0002] At present, the guide wire locking device is a device connected on the endoscope handle and used for fixing the guide wire to prevent the guide wire from moving, the guide wire can be fixed, and the surgical instrument can quickly enter the predetermined position along the guide wire and quickly exit along the guide wire, because the tail end of the guide wire can be fixed through the guide wire locking device, and the guide wire will not move during the process of the surgical instrument entering and exiting along the guide wire, for example, a guide wire locking device is disclosed in the Chinese patent with the publication number CN219814988U. However, the guide wire locking device is bound and connected on the endoscope handle, and the binding is not firm and loose, which can cause the guide wire locking device to loosen and move, and the guide wire fixed on the guide wire locking device will also move and deviate from the predetermined position. SUMMARY

[0003] The utility model solves the technical problem that the prior art has defects, provides a guide wire locking device for endoscope, which can improve the stability and firmness of the connection on the endoscope handle, avoid the problem of loosening and moving, and avoid the guide wire from moving and deviating from the predetermined position.

[0004] In order to solve the above technical problems, the technical scheme of the utility model is as follows: a guide wire locking device for endoscope, comprising a main body seat, a biopsy valve, a driving mechanism and at least one clamp;

[0005] The main body seat is provided with a cantilever part for fixing the guide wire, and the lower end of the main body seat is provided with a mounting hole for the mounting joint in the endoscope handle to extend into;

[0006] The biopsy valve is connected in the main body seat and used for abutting with the mounting joint extending into the mounting hole to seal and block the biopsy channel in the mounting joint;

[0007] The clamp is radially slidingly connected on the lower end of the main body seat;

[0008] The driving mechanism is connected on the main body seat, and the driving mechanism is used for driving the clamp to slide radially inward into the limiting clamping groove on the outer peripheral part of the mounting joint after the mounting joint extends into the mounting hole.

[0009] Further, a specific structure of the driving mechanism is provided, and the driving mechanism comprises a sleeve and a main elastic member;

[0010] The outer end of the card is provided with a matching inclined surface part, and the sleeve is provided with a driving inclined surface part corresponding to the matching inclined surface part;

[0011] The sleeve is slidably sleeved on the outside of the main body seat, and has an unlocking position of sliding upward to a position and a locking position of sliding downward to a position during sliding;

[0012] The main elastic member is installed between the main body seat and the sleeve, and is used to drive the sleeve to slide downward to the locking position by elastic force, so that the driving inclined surface part abuts against the matching inclined surface part on the corresponding card to drive the card to slide radially inward to be clamped into the limiting clamping groove.

[0013] Further, the driving mechanism further comprises a reset elastic member corresponding to the card, one end of the reset elastic member abuts against the main body seat, and the other end of the reset elastic member abuts against the corresponding card;

[0014] The main elastic member is used to drive the sleeve to slide downward to the locking position by elastic force, so that the driving inclined surface part abuts against the matching inclined surface part on the corresponding card to drive the card to slide radially inward to be clamped into the limiting clamping groove against the elastic force of the reset elastic member;

[0015] The reset elastic member is used to drive the card to move radially outward to exit the limiting clamping groove when the sleeve slides upward to the unlocking position.

[0016] Further, the card is provided with a mounting pin, and the reset elastic member is sleeved on the outside of the mounting pin on the corresponding card.

[0017] Further, the sleeve is provided with a sliding block part protruding radially inward, the sliding block part corresponds to the driving inclined surface part one by one, and the driving inclined surface part is arranged on the lower end of the corresponding sliding block part;

[0018] The outer side wall of the main body seat is provided with a sliding groove corresponding to the sliding block part one by one, and the sliding block part is slidably fitted in the sliding groove.

[0019] Further, the lower end of the main body seat is provided with a radially outward protruding abutting step part;

[0020] The inner circumferential part of the sleeve is connected with at least two abutting arms distributed in sequence in the circumferential direction;

[0021] The abutting arms extend inwardly from top to bottom, the upper end of the abutting arm is connected to the sleeve, and the lower end of the abutting arm is used to abut against the upper end surface of the abutting step part when the sleeve slides downward to the locking position to prevent the sleeve from sliding off the main body seat.

[0022] Further, the main body seat is provided with a sliding fitting hole corresponding to the clamping piece, and the clamping piece is arranged in the corresponding sliding fitting hole in a radial sliding manner.

[0023] Further, the outer peripheral part of the mounting connector is provided with an upper boss part above the limiting clamping groove and a lower boss part below the limiting clamping groove, and the lower boss part is used to abut against the lower end surface of the main body seat after the mounting connector is inserted into the mounting hole.

[0024] Further, the cantilever part is provided with a wire locking clamping groove for clamping the guide wire to fix the guide wire.

[0025] The cantilever part is further connected with a limiting block, and a limiting groove for clamping the guide wire to limit the guide wire is arranged between the limiting block and the cantilever part.

[0026] Further, the main body seat is provided with a mounting inner cavity, the mounting hole is below the mounting inner cavity and communicates with the mounting inner cavity, and a reference step part is arranged between the mounting inner cavity and the mounting hole.

[0027] The biopsy valve is mounted in the mounting inner cavity, the lower end part of the biopsy valve is provided with an end part and a limiting step part, the limiting step part abuts against the reference step part, and the end part is inserted into the mounting hole and used to abut against the mounting connector inserted into the mounting hole to seal and block the biopsy channel.

[0028] The main body seat is further provided with a limiting boss part used to abut against the upper end surface of the biopsy valve to limit the biopsy valve in the mounting inner cavity, and a wire passing channel is arranged on the inner side of the limiting boss part.

[0029] After the above technical scheme is adopted, the mounting connector is part of the endoscope handle, when the mounting connector is inserted into the mounting hole and is inserted into position, the clamping piece is driven to slide radially inwardly into the limiting clamping groove by the driving mechanism, and then the mounting connector is limited in the mounting hole, so that the main body seat is connected on the mounting connector. Then the head of the guide wire is inserted into the biopsy channel through the biopsy valve and then is inserted into the predetermined position in the human body through the endoscope handle, and then the tail of the guide wire is fixed on the cantilever part, at this time, the guide wire is fixed and thus cannot be displaced. In the embodiment of the present application, the mounting connector is inserted into the mounting hole, and then the clamping piece is clamped into the limiting clamping groove to limit the mounting connector in the mounting hole, so that the main body seat is stably, reliably and firmly connected on the mounting connector, the stability and firmness of the main body seat connected on the endoscope handle are greatly improved, the problem that the main body seat is loose and displaced can be avoided, and then the guide wire can be avoided from being displaced and deviated from the predetermined position. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the structure schematic view of endoscope guide wire locking device and mounting joint of the utility model;

[0031] Figure 2 It is the assembly explosion view of endoscope guide wire locking device and mounting joint of the utility model;

[0032] Figure 3 It is the sectional view when endoscope guide wire locking device and mounting joint of the utility model are separated;

[0033] Figure 4 It is the sectional view when endoscope guide wire locking device and mounting joint of the utility model are assembled;

[0034] Figure 5 It is the sectional view of endoscope guide wire locking device of the utility model;

[0035] Figure 6 It is the structure schematic view of main body seat of the utility model;

[0036] Figure 7 It is the structure schematic view of sleeve of the utility model. DETAILED DESCRIPTION

[0037] In order to make the content of the utility model more easily be clearly understood, the utility model is further explained in detail below according to specific embodiment and in conjunction with the drawings.

[0038] As Figures 1-6 Indicated, a kind of endoscope guide wire locking device, including main body seat 1, biopsy valve 2, driving mechanism and at least one card 3;

[0039] Endoscope handle has mounting joint 4, the mounting joint 4 is equipped with biopsy passage 5, the outer peripheral portion of the mounting joint 4 is equipped with the limiting card slot 6 recessed along radial direction inward;

[0040] The cantilever portion 7 for fixing guide wire is equipped on the main body seat 1, the lower end of the main body seat 1 is equipped with the installation hole 8 for the mounting joint 4 to extend into;

[0041] The biopsy valve 2 is connected in the main body seat 1 and is used to abut with the mounting joint 4 extending into the installation hole 8 to seal and block biopsy passage 5;

[0042] The card 3 is slidably connected on the lower end of the main body seat 1 along radial direction;

[0043] The driving mechanism is connected to the main body seat 1, and is used to drive the clamping piece 3 to slide radially inward to be clamped into the limiting clamping groove 6 after the mounting joint 4 extends into the mounting hole 8.

[0044] Specifically, the mounting joint 4 is a part of the endoscope handle. When the mounting joint 4 extends into the mounting hole 8 and is in place, the clamping piece 3 is driven to slide radially inward to be clamped into the limiting clamping groove 6 by the driving mechanism, so that the mounting joint 4 is limited in the mounting hole 8, and the main body seat 1 is connected to the mounting joint 4. Then the head of the guide wire is inserted into the biopsy channel 5 through the biopsy valve 2, and then inserted into the predetermined position in the human body through the endoscope handle. Then the tail of the guide wire is fixed to the cantilever part 7. At this time, the guide wire is fixed and cannot be displaced. In the embodiment of the application, the mounting joint 4 is inserted into the mounting hole 8, and then the clamping piece 3 is clamped into the limiting clamping groove 6 to limit the mounting joint 4 in the mounting hole 8, so that the main body seat 1 is stably and reliably and firmly connected to the mounting joint 4. The stability and firmness of the connection of the main body seat 1 to the endoscope handle are greatly improved, and the problem of loosening and displacement of the main body seat 1 is avoided, so that the guide wire cannot be displaced, and the guide wire cannot deviate from the predetermined position.

[0045] As shown in Figures 1-7 The driving mechanism can include a sleeve 9 and a main elastic member 10.

[0046] The outer end of the clamping piece 3 is provided with a matching inclined surface part 11, and the sleeve 9 is provided with a driving inclined surface part 12 corresponding to the matching inclined surface part 11.

[0047] The sleeve 9 is slidably connected to the outside of the main body seat 1, and has an unlocking position of sliding upward to a position and a locking position of sliding downward to a position.

[0048] The main elastic member 10 is installed between the main body seat 1 and the sleeve 9, and is used to drive the sleeve 9 to slide downward to the locking position by the elastic force, so that the driving inclined surface part 12 abuts against the corresponding matching inclined surface part 11 on the clamping piece 3 to drive the clamping piece 3 to slide radially inward to be clamped into the limiting clamping groove 6. Specifically, the outer periphery of the main body seat 1 is provided with a first step 13 downwardly arranged, and the inner periphery of the sleeve 9 is provided with a second step 14 upwardly arranged. The main elastic member 10 is compressed and installed between the first step 13 and the second step 14. In the embodiment, the clamping piece 3 is circumferentially distributed with two clamping pieces. Of course, in some embodiments, the clamping piece 3 can be provided with three or four or more clamping pieces.

[0049] As shown in Figures 1-5As shown, the driving mechanism further comprises a reset elastic member 16 corresponding to the clamping piece 3, one end of the reset elastic member 16 abuts against the main body seat 1, and the other end of the reset elastic member 16 abuts against the corresponding clamping piece 3;

[0050] The main elastic member 10 is used to drive the sleeve 9 to slide downward towards the locking position by elastic force, so as to make the driving inclined surface 12 abut against the matching inclined surface 11 on the corresponding clamping piece 3, and drive the clamping piece 3 to slide radially inward to be clamped into the limiting clamping groove 6 against the elastic force of the reset elastic member 16;

[0051] The reset elastic member 16 is used to drive the clamping piece 3 to move radially outward to exit the limiting clamping groove 6 when the sleeve 9 slides upward to the unlocking position;

[0052] The clamping piece 3 is provided with a mounting pin 17, and the reset elastic member 16 is sleeved on the outer side of the mounting pin 17 on the corresponding clamping piece 3; in this embodiment, the elastic force of the main elastic member 10 is much greater than that of the reset elastic member 16, the reset elastic member 16 corresponds to the clamping piece 3 one by one, and the main elastic member 10 and the reset elastic member 16 can both be springs. Specifically, when the main body seat 1 needs to be installed on the mounting connector 4, the sleeve 9 is first pulled upward to slide upward to the unlocking position against the elastic force of the main elastic member 10, at this time the reset elastic member 16 can drive the clamping piece 3 to move radially outward to the position, then the mounting connector 4 is inserted into the mounting hole 8, and then the sleeve 9 is released to drive the sleeve 9 to slide downward towards the locking position by the main elastic member 10, so as to make the driving inclined surface 12 abut against the matching inclined surface 11 on the corresponding clamping piece 3, and then drive the clamping piece 3 to slide radially inward to be clamped into the limiting clamping groove 6 under the guidance of the inclined surface against the elastic force of the reset elastic member 16, so as to limit the mounting connector 4 in the mounting hole 8, so that the main body seat 1 is connected on the mounting connector 4. Further specifically, when the main body seat 1 needs to be detached from the mounting connector 4, the sleeve 9 is pulled upward to slide upward to the unlocking position against the elastic force of the main elastic member 10, at this time the reset elastic member 16 can drive the clamping piece 3 to move radially outward to exit the limiting clamping groove 6, and then the mounting connector 4 is pulled out of the mounting hole 8. Wherein, the inner side end of the clamping piece 3 is the end close to the mounting hole 8, and the outer side end of the clamping piece 3 is the end away from the mounting hole 8.

[0053] As Figure 2 , 3, 4, 6, 7, the sleeve 9 is provided with a sliding block part 18 which protrudes radially inward, the sliding block part 18 corresponds to the driving inclined surface part 12 one by one, and the driving inclined surface part 12 is arranged on the lower end part of the corresponding sliding block part 18;

[0054] The outer side wall of the main body seat 1 is provided with a sliding groove 19 corresponding to the sliding block part 18 one by one, and the sliding block part 18 is slidingly matched in the sliding groove 19; specifically, the sleeve 9 can be circumferentially positioned through the cooperation of the sliding groove 19 and the sliding block part 18.

[0055] As shown in Figure 2 , 5 , 4, 6, 7, the lower end part of the main body seat 1 can be provided with a radial outward protruding abutting step part 20;

[0056] The inner circumferential part of the sleeve 9 is connected with at least two abutting arms 21 which are distributed in sequence in the circumferential direction;

[0057] The abutting arm 21 extends inwardly from top to bottom, the upper end part of the abutting arm 21 is connected on the sleeve 9, and the lower end part of the abutting arm 21 is used to abut against the upper end surface of the abutting step part 20 when the sleeve 9 slides downward to the upper locking position, so as to prevent the sleeve 9 from slipping off the main body seat 1.

[0058] As shown in Figure 2 , 3 , 4, 6, the main body seat 1 is provided with a sliding fitting hole 22 corresponding to the clamping piece 3 one by one, and the clamping piece 3 is arranged in the corresponding sliding fitting hole 22 in the radial direction.

[0059] As shown in Figures 1-4 , the outer circumferential part of the mounting connector 4 is provided with an upper boss part 15 located above the limiting clamping groove 6 and a lower boss part 23 located below the limiting clamping groove 6, and the lower boss part 23 is used to abut against the lower end surface of the main body seat 1 after the mounting connector 4 is inserted into the mounting hole 8.

[0060] As shown in Figures 1-6 , the cantilever part 7 is provided with a wire locking clamping groove 24 for clamping the guide wire to fix the guide wire;

[0061] The cantilever part 7 is further connected with a limiting block 25, and a limiting groove 26 for clamping the guide wire to limit the guide wire is arranged between the cantilever part 7 and the limiting block 25.

[0062] As shown in Figures 1-6 , the main body seat 1 is provided with a mounting inner cavity, the mounting hole 8 is located below the mounting inner cavity and communicates with the mounting inner cavity, and a reference step part 27 is arranged between the mounting inner cavity and the mounting hole 8.

[0063] The biopsy valve 2 is installed in the installation inner cavity, the lower end of the biopsy valve 2 is provided with a head part 28 and a limiting step part 29, the limiting step part 29 abuts on the reference step part 27, and the head part 28 extends into the installation hole 8 and abuts on the installation joint 4 extending into the installation hole 8 to seal and block the biopsy channel 5;

[0064] The main body seat 1 is further provided with a limiting protrusion 30 for abutting on the upper end surface of the biopsy valve 2 to limit the biopsy valve 2 in the installation inner cavity, and the inner side of the limiting protrusion 30 is provided with a wire passing channel 31; specifically, when the main body seat 1 is connected on the installation joint 4, the head of the guide wire passes through the wire passing channel 31, then passes through the biopsy valve 2 and extends into the biopsy channel 5, and then extends into the predetermined position in the human body through the endoscope handle, and then the tail of the guide wire is clamped into the limiting slot 26 and the wire clamping slot 24 to fix the guide wire, at this time, the guide wire will not be displaced. In the embodiment, the main body seat 1 is spliced by a left shell and a right shell.

[0065] In summary, the installation joint 4 is part of the endoscope handle, when the installation joint 4 extends into the installation hole 8 and extends to the position, the clip 3 is driven to slide radially inwardly to be clamped into the limiting clamping slot 6 through the driving mechanism, and then the installation joint 4 can be limited in the installation hole 8, so that the main body seat 1 is connected on the installation joint 4. Then the head of the guide wire extends into the biopsy channel 5 through the biopsy valve 2, and then extends into the predetermined position in the human body through the endoscope handle, and then the tail of the guide wire is fixed on the cantilever part 7, at this time, the guide wire is fixed and thus will not be displaced. In the embodiment, the installation joint 4 extends into the installation hole 8, and then the installation joint 4 is limited in the installation hole 8 by clamping the clip 3 into the limiting clamping slot 6, and then the main body seat 1 is stably, reliably and firmly connected on the installation joint 4, which greatly improves the stability and firmness of the main body seat 1 connected on the endoscope handle, avoids the problem that the main body seat 1 is loose and displaced, and then avoids the displacement of the guide wire and prevents the guide wire from deviating from the predetermined position.

[0066] The above specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the utility model, and it should be understood that the above is only a specific embodiment of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A guide wire locking device for an endoscope, characterized by comprising: The device comprises a main body seat (1), a biopsy valve (2), a driving mechanism and at least one clamping pin (3); The main body seat (1) is provided with a cantilever part (7) for fixing a guide wire, and the lower end of the main body seat (1) is provided with a mounting hole (8) for the mounting connector (4) in the handle of an endoscope to extend into; The biopsy valve (2) is connected in the main body seat (1) and used for abutting against the mounting connector (4) extending into the mounting hole (8) to seal and block the biopsy channel (5) in the mounting connector (4); The clamping pin (3) is radially and slidingly connected to the lower end of the main body seat (1); The driving mechanism is connected to the main body seat (1), and is used for driving the clamping pin (3) to slide radially inward to the limiting clamping groove (6) on the outer circumferential part of the mounting connector (4) after the mounting connector (4) extends into the mounting hole (8).

2. The guidewire locking device for endoscopy according to claim 1, characterized in that The driving mechanism comprises a sleeve (9) and a main elastic member (10); The outer side end of the clamping pin (3) is provided with a matching inclined surface part (11), and the sleeve (9) is provided with a driving inclined surface part (12) corresponding to the matching inclined surface part (11); The sleeve (9) is slidingly sleeved on the outer side of the main body seat (1), and has an unlocking position of sliding upward to a position and a locking position of sliding downward to a position in the sliding process; The main elastic member (10) is installed between the main body seat (1) and the sleeve (9), and is used for driving the sleeve (9) to slide downward to the locking position by elastic force, so that the driving inclined surface part (12) abuts against the corresponding matching inclined surface part (11) on the clamping pin (3) to drive the clamping pin (3) to slide radially inward to be clamped into the limiting clamping groove (6).

3. The guide wire locking device for an endoscope according to claim 2, wherein The driving mechanism further comprises a reset elastic member (16) corresponding to the clamping pin (3), one end of the reset elastic member (16) abuts against the main body seat (1), and the other end of the reset elastic member (16) abuts against the corresponding clamping pin (3); The main elastic member (10) is used for driving the sleeve (9) to slide downward to the locking position by elastic force, so that the driving inclined surface part (12) abuts against the corresponding matching inclined surface part (11) on the clamping pin (3) to drive the clamping pin (3) to slide radially inward to be clamped into the limiting clamping groove (6) against the elastic force of the reset elastic member (16); The reset elastic member (16) is used for driving the clamping pin (3) to move radially outward to exit the limiting clamping groove (6) when the sleeve (9) slides upward to the unlocking position.

4. The guidewire locking device for endoscopy according to claim 3, characterized in that The clamping pin (3) is provided with a mounting pin (17), and the reset elastic member (16) is sleeved on the outer side of the mounting pin (17) of the corresponding clamping pin (3).

5. The guide wire locking device for an endoscope according to claim 2, wherein The sleeve (9) is provided with a sliding block portion (18) protruding radially inward, which corresponds to the driving inclined surface portion (12) provided on the lower end of the sliding block portion (18); The outer side wall of the main body seat (1) is provided with a sliding groove (19) corresponding to the sliding block portion (18), and the sliding block portion (18) is slidingly fitted in the sliding groove (19).

6. The guide wire locking device for endoscope according to claim 2, characterized in that, The lower end of the main body seat (1) is provided with a radial outward protruding abutting step portion (20); The inner circumferential portion of the sleeve (9) is connected with at least two abutting arms (21) distributed circumferentially in sequence; The abutting arms (21) extend inwardly and downwardly from the upper end to the lower end, the upper end of the abutting arms (21) is connected to the sleeve (9), and the lower end of the abutting arms (21) is used to abut against the upper end surface of the abutting step portion (20) when the sleeve (9) slides downward to the locking position to prevent the sleeve (9) from sliding off the main body seat (1).

7. The guidewire locking device for endoscopy according to claim 1, characterized in that The main body seat (1) is provided with a sliding fitting hole (22) corresponding to the clip (3), and the clip (3) is radially slidingly arranged in the corresponding sliding fitting hole (22).

8. The guidewire locking device for endoscopy according to claim 1, characterized in that The outer circumferential portion of the mounting connector (4) is provided with an upper boss portion (15) above the limiting clamping groove (6) and a lower boss portion (23) below the limiting clamping groove (6), and the lower boss portion (23) is used to abut against the lower end surface of the main body seat (1) after the mounting connector (4) is inserted into the mounting hole (8).

9. The guide wire locking device for endoscope according to claim 1, characterized in that, The cantilever portion (7) is provided with a wire locking clamping groove (24) for clamping the guide wire to fix the guide wire; The cantilever portion (7) is further connected with a limiting block (25), and a limiting groove (26) for clamping the guide wire to limit the guide wire is arranged between the cantilever portion (7) and the limiting block (25).

10. The guidewire locking device for endoscopy according to claim 1, characterized in that The main body seat (1) is provided with an installation inner cavity, the mounting hole (8) is located below the installation inner cavity and communicates with the installation inner cavity, and a reference step portion (27) is arranged between the installation inner cavity and the mounting hole (8); The biopsy valve (2) is installed in the installation inner cavity, the lower end of the biopsy valve (2) is provided with a head portion (28) and a limiting step portion (29), the limiting step portion (29) abuts against the reference step portion (27), and the head portion (28) is inserted into the mounting hole (8) and used to abut against the mounting connector (4) inserted into the mounting hole (8) to seal and block the biopsy channel (5); The main body seat (1) is further provided with a limiting protrusion (30) for abutting against the upper end surface of the biopsy valve (2) to limit the biopsy valve (2) in the installation inner cavity, and a wire passing channel (31) is arranged on the inner side of the limiting protrusion (30).

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