Ligation device for endoscope

Abstract

The utility model discloses a loop ligature device for an endoscope, and belongs to the technical field of medical instruments. A loop ligature device for an endoscope comprises a rotating handle, a handle seat and a release rope, a spring pressing piece is arranged on one side of the handle seat, a supporting column is arranged on the side face of the handle seat, and one end of the spring pressing piece is installed on the supporting column; the other end of the spring pressing sheet extends to the inner side of the rotating handle; the loop of the loop ligature device is fixed on the sleeve, the release rope is pressed between the loop and the sleeve, the release balls are arranged on the release rope at certain intervals, the release rope is connected with the handle, and the guide tube is arranged on the release rope between the sleeve and the handle. The pull rope is wound on the pull rope winding ring by rotating the rotating handle, and the pull rope drives the ferrule to fall off from the sleeve. A spring pressing piece is arranged on the handle, and the sleeve ring is released every time to give a release prompt.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and more specifically to an endoscope ligation device. Background Art

[0002] Endoscopic ligation device is a medical device used in conjunction with an endoscope. With the promotion and advancement of endoscopic ligation, its application field is becoming more and more extensive. It is currently mainly used for ligation of varicose veins and internal hemorrhoids in the human digestive tract. The mainstream endoscopic ligation device is a linear ligation device. The linear ligation device has the advantages of continuous multiple shots and can be operated directly with an endoscope. The principle of the ligation device to encircle the blood vessel: use a transparent cap to attract varicose veins. When the varicose veins or internal hemorrhoids are completely sucked into the inner side of the ligation device in an Ω shape, release the ligation ring to completely ligate it, interrupt the blood flow, vein atrophy - thrombus organization - scar and fibrosis, and finally degenerate and abolish varicose veins / internal hemorrhoids. At the same time, the ligated tissue and its surface necrotize and fall off after 5-7 days. However, the ligation device products currently on the market have limitations such as complex structure and inconvenient operation.

[0003] In view of this, we propose an endoscopic ligation device. Utility Model Content

[0004] The utility model aims to provide an endoscope ligation device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An endoscope ligation device comprises a rotating handle, a handle seat and a release rope, a spring pressing piece is arranged on one side of the handle seat, a support column is arranged on the side of the handle seat, and one end of the spring pressing piece is mounted on the support column;

[0007] The other end of the spring pressing piece extends to the inside of the rotating handle;

[0008] A pull rope is arranged on the handle seat, and one end of the pull rope is connected with the release rope.

[0009] Preferably, it also includes a sleeve and a plurality of loops, the loops are sleeved on the sleeve, the release rope is located between the loops and the sleeve, a plurality of groups of spherical release beads are arranged on the release rope, and a group of spherical release beads is arranged between two adjacent loops.

[0010] Preferably, a second circular ring and a first circular ring are sequentially arranged on the inner side of the rotating handle close to the handle seat, and the diameter of the second circular ring is larger than that of the first circular ring.

[0011] Preferably, a groove D is provided on the second circular ring, and a transition slope is provided on a side of the second circular ring close to the first circular ring.

[0012] Preferably, it also includes a fixing ring and a winding ring, the pull rope is wound around the winding ring, the winding ring is sleeved on the fixing ring, the fixing ring is installed on the handle seat, and the rotating handle is connected to the fixing ring.

[0013] Preferably, a guide tube is provided at the bottom of the handle seat, and the pull rope passes through the guide tube and extends to the outside.

[0014] Preferably, support walls are provided on both sides of the handle seat, a first circular hole and a second circular hole are respectively provided on the two support walls, and a protruding structure B is provided on the outer side of the second circular hole;

[0015] The winding ring is installed between the two supporting walls, and two ends of the fixing ring pass through the first circular hole and the second circular hole respectively.

[0016] Preferably, the fixing ring is a hollow cylinder, a groove A is provided on the first end surface of the fixing ring, and a side through groove is provided on the groove A;

[0017] A plurality of convex structures C distributed along the axial direction are arranged on the second end surface of the fixing ring close to the groove A, and a convex circular ring distributed along the radial direction is arranged on the second end surface of the fixing ring away from the groove A;

[0018] The inner surface of the third end face of the fixing ring is provided with a groove B distributed along the axial direction;

[0019] An inner hole is provided on the winding ring, and a plurality of grooves C distributed along the axial direction are arranged in the inner hole. The protruding structure C cooperates with the groove C. A wire clamping groove is provided on the outer wall of the winding ring, and the end of the pull rope is fixed in the wire clamping groove.

[0020] Preferably, a cylindrical tube is provided at the bottom of the handle seat, and the guide tube is connected to the cylindrical tube;

[0021] A sealing cap is arranged in the cylindrical tube, a through hole is opened on the sealing cap, and the pull rope passes through the through hole.

[0022] Preferably, a rotating shaft is provided on the rotating handle, and a first groove and a second groove are provided on an outer wall of one end of the rotating shaft, and a side of the second groove close to the first groove is provided with an inclined surface;

[0023] The outer wall of one inner end of the rotating shaft is provided with a plurality of protruding structures A, and there is a gap between the protruding structures A and the inner wall of the first circular ring.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] The utility model fixes the ferrule of the ligation device on the sleeve, presses the release rope between the ferrule and the sleeve, and sets release beads at a certain interval on the release rope. The release rope is connected to the handle, and the pull rope is wound around the pull rope winding ring by rotating the handle, and the pull rope drives the release rope to make the ferrule fall off the sleeve. A spring pressing piece is set at the handle, and when the spring pressing piece contacts the groove D during the rotation process, the ferrule is released synchronously, and a release prompt is given each time the ferrule is released, so that the operator can clearly know whether the ferrule is released, and the ligation device of the present application has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the endoscopic ligation device of the utility model;

[0027] Figure 2 This is a schematic diagram of the disassembly of the handle parts of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the rotary handle of the utility model;

[0029] Figure 4 This is a schematic diagram of the fixing ring structure of the utility model;

[0030] Figure 5 This is a schematic diagram of the winding ring structure of the utility model;

[0031] Figure 6 This is a schematic diagram of the spring pressing sheet structure of the utility model;

[0032] Figure 7 This is a schematic diagram of the handle base structure of the utility model;

[0033] Figure 8 This is a schematic diagram of the sealing cap structure of the utility model;

[0034] Fig. 9 This is a schematic diagram of the installation of the handle base and the spring pressing piece of the utility model.

[0035] Explanation of the reference numerals in the figure: 1. Rotating handle; 2. Fixing ring; 2101. Groove A; 2102. Side through groove; 2201. Protruding structure C; 2202. Protruding circular ring; 2301. Groove B; 3. Winding ring; 31. Groove C; 32. Wire clamping groove; 33. Inner hole; 4. Spring pressing plate; 41. Spring pressing plate circular hole; 42. Bending part; 5. Handle seat; 51. First circular hole; 52. Support column; 53. Protruding structure B; 54. Cylindrical tube ; 6. Sealing cap; 61. First end body; 62. Intermediate body; 63. Second end body; 64. Second end hole; 65. Inner hole; 66. First end hole; 7. Pull rope; 8. Guide tube; 9. Sleeve; 10. Ring; 11. First groove; 12. Second groove; 13. Raised structure A; 14. Rotating operation plane; 1501. First ring; 1502. Second ring; 1503. Groove D; 1504. Transition slope; 16. Release rope. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0037] Example:

[0038] See also Figure 1-9 An endoscope ligation device comprises a rotating handle 1, a handle seat 5 and a release rope 16, a spring pressing piece 4 is arranged on one side of the handle seat 5, a support column 52 is arranged on the side of the handle seat 5, and one end of the spring pressing piece 4 is mounted on the support column 52;

[0039] The other end of the spring pressing piece 4 extends to the inside of the rotating handle 1; Figure 6 As shown, the spring pressing piece 4 is fixed on the support column 52 in the handle seat 5, the circular hole 41 of the spring pressing piece is coaxial with the circular hole on the support column 52, and the spring pressing piece 4 is also provided with a bent portion 42.

[0040] It also includes a sleeve 9 and a plurality of ferrules 10, the ferrules 10 are sleeved on the sleeve 9, a release rope 16 is used to pull the ferrules 10 to release, the release rope 16 is located between the ferrules 10 and the sleeve 9, a plurality of groups of spherical release beads are arranged on the release rope 16, and a group of spherical release beads is arranged between two adjacent ferrules 10. The sleeve 9 is made of transparent material, and the spherical release beads push the ferrules 10 to slide out of the sleeve 9 by pulling the release rope 16.

[0041] By fixing the ligation device ring 10 on the sleeve 9 , the release rope 16 is pressed between the ring 10 and the sleeve 9 , and the release rope is provided with release beads at certain intervals, and the release rope 16 is connected to the rotating handle 1 .

[0042] In the present application, a pull rope 7 is provided on the handle seat 5, one end of the pull rope 7 is connected to the release rope 16, and the pull rope 7 is wound around the winding ring 3 by rotating the handle 1. The release rope 16 is connected to the rotating handle 1 through the pull rope 7.

[0043] A guide tube 8 is provided at the bottom of the handle base 5 , and the pull rope 7 passes through the guide tube 8 and extends to the outside, and the end of the pull rope 7 is connected to one end of the release rope 16 .

[0044] In the present application, a second ring 1502 and a first ring 1501 are sequentially arranged on the inner side of the rotating handle 1 near the handle seat 5, and the diameter of the second ring 1502 is larger than the first ring 1501. When the spring pressing sheet 4 is located on the first ring 1501 surface of the rotating handle 1, the rotating handle 1 can rotate in both forward and reverse directions.

[0045] In the present application, a groove D1503 is provided on the second circular ring 1502, and a transition slope 1504 is provided on the side of the second circular ring 1502 close to the first circular ring 1501. When the spring pressing piece 4 is located on the surface of the second circular ring 1502 of the rotating handle 1, the rotation will have a better damping feeling due to the pressure received by the spring pressing piece 4. During the rotation process, when the spring pressing piece 4 contacts the groove D1503, the ring 10 is released synchronously to provide a hand feeling prompt.

[0046] In the present application, a fixing ring 2 and a winding ring 3 are also included. The pull rope 7 is wound around the winding ring 3 . The winding ring 3 is sleeved on the fixing ring 2 . The fixing ring 2 is installed on the handle seat 5 . The rotating handle 1 is connected to the fixing ring 2 .

[0047] In the present application, support walls are provided on both sides of the handle base 5, and a first circular hole 51 and a second circular hole are respectively provided on the two support walls, and a protruding structure B53 is provided on the outer side of the second circular hole;

[0048] The winding ring 3 is installed between the two supporting walls, and two ends of the fixing ring 2 pass through the first circular hole 51 and the second circular hole respectively.

[0049] In the present application, the fixing ring 2 is a hollow cylinder, a groove A2101 is provided on the first end surface of the fixing ring 2, and a side through groove 2102 is provided on the groove A2101;

[0050] A plurality of axially distributed protrusion structures C2201 are provided on the second end surface of the fixing ring 2 close to the groove A2101, and a radially distributed protrusion ring 2202 is provided on the second end surface of the fixing ring 2 away from the groove A2101;

[0051] The inner surface of the third end face of the fixing ring 2 is provided with a groove B2301 distributed along the axial direction;

[0052] An inner hole 33 is provided on the winding ring 3, and a plurality of grooves C31 distributed along the axial direction are arranged in the inner hole 33. The protruding structure C2201 cooperates with the groove C31. A wire clamping groove 32 is provided on the outer wall of the winding ring 3, and the end of the pull rope 7 is fixed in the wire clamping groove 32.

[0053] The rotating handle 1 is provided with a rotating shaft, and the outer wall of one end of the rotating shaft is provided with a first groove 11 and a second groove 12, and the second groove 12 is provided with an inclined surface close to the first groove 11; wherein, when the first groove 11 contacts the side through groove 2102, the spring pressing piece 4 is located on the first circular ring 1501 surface of the rotating handle 1. When the second groove 12 contacts and fixes the side through groove 2102, the spring pressing piece 4 is located on the second circular ring 1502 surface of the rotating handle 1.

[0054] The outer wall of one end of the inner side of the rotating shaft is provided with a plurality of protrusion structures A13, and there is a gap between the protrusion structure A13 and the inner wall of the first ring 1501. The protrusion structure A13 is matched with the groove B2301.

[0055] In the present application, a cylindrical tube 54 is provided at the bottom of the handle base 5, and the guide tube 8 is connected to the cylindrical tube 54;

[0056] A sealing cap 6 is disposed in the cylindrical tube 54, and a through hole is formed in the sealing cap 6, through which the pull rope 7 passes. Figure 8 As shown in the figure, the sealing cap 6 is placed in the cylindrical tube 54, and the sealing cap 6 includes a first end body 61, an intermediate body 62, and a second end body 63. The sealing cap 6 is respectively provided with a second end hole 64, an inner hole 65, and a first end hole 66; the second end hole 64, the inner hole 65, and the first end hole 66 are interconnected but have different hole diameters.

[0057] Working principle: During installation, the winding ring 3 is placed between the two support arms of the handle base 5, and the winding ring 3 is coaxial with the first circular hole 51. Then the fixing ring 2 is passed through the handle base 5 and the winding ring 3 from one end of the first circular hole 51 of the handle base 5, and extends to the second circular hole and the raised structure B53, and the groove A2101 on the first end face of the fixing ring 2 is clamped and fixed with the raised structure B53 on the outer side of the handle base 5.

[0058] Will Figure 3 The end of the rotating handle 1 in the fixing ring 2 passes through one side of the groove B2301 in the fixing ring 2. A rotating operation plane 14 is provided on the rotating handle 1 for rotating the rotating handle 1 by hand.

[0059] like Figure 1As shown in the figure, the pull rope 7 is fixed in the wire clamping groove 32 of the winding ring 3, and the rotating handle 1 is turned to wind the pull rope 7 on the winding ring 3. The pull rope 7 passes through the inner hole 65 and passes through the sealing cap 6. After the pull rope 7 passes through the handle seat 5, it passes through the guide tube 8, and the pull rope 7 is fixedly connected with the release rope 16. The pull rope is wound on the pull rope winding ring by rotating the handle 1, and the pull rope drives the ring 10 to fall off the sleeve 9.

[0060] When in use: When the first groove 11 of the rotating handle 1 contacts the side groove 2102 of the fixing ring 2, the spring pressing piece 4 is located on the first circular ring 1501 of the rotating handle 1, and the rotating handle 1 can rotate in both directions. When the second groove 12 of the rotating handle 1 contacts and fixes the side groove 2102 of the fixing ring 2, the spring pressing piece 4 is located on the second circular ring 1502 of the rotating handle 1. At this time, due to the pressure on the spring pressing piece 4, the rotation will have a better damping feeling. During the rotation process, when the spring pressing piece 4 contacts the groove D1503, the ring 10 is released synchronously to give a hand feeling prompt.

[0061] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An endoscope ligation device, comprising a rotating handle (1), a handle seat (5) and a release rope (16), characterized in that: A spring pressing piece (4) is provided on one side of the handle seat (5), a support column (52) is provided on the side of the handle seat (5), and one end of the spring pressing piece (4) is mounted on the support column (52); The other end of the spring pressing sheet (4) extends to the inner side of the rotating handle (1); A pull rope (7) is provided on the handle seat (5), and one end of the pull rope (7) is connected to a release rope (16); It also comprises a sleeve (9) and a plurality of ferrules (10), wherein the ferrules (10) are sleeved on the sleeve (9), and the release rope (16) is used for pulling the ferrules (10) to release.

2. The endoscopic ligation device according to claim 1, characterized in that: The release rope (16) is located between the ring (10) and the sleeve (9), and a plurality of groups of spherical release beads are arranged on the release rope (16), and a group of spherical release beads is arranged between two adjacent rings (10).

3. The endoscopic ligation device according to claim 1, characterized in that: A second circular ring (1502) and a first circular ring (1501) are sequentially arranged on the inner side of the rotating handle (1) close to the handle seat (5), and the diameter of the second circular ring (1502) is greater than that of the first circular ring (1501).

4. The endoscopic ligation device according to claim 3, characterized in that: The second circular ring (1502) is provided with a groove D (1503), and a transition slope (1504) is provided on the side of the second circular ring (1502) close to the first circular ring (1501).

5. The endoscopic ligation device according to claim 1, characterized in that: It also comprises a fixing ring (2) and a winding ring (3), the pull rope (7) is wound around the winding ring (3), the winding ring (3) is sleeved on the fixing ring (2), the fixing ring (2) is mounted on the handle seat (5), and the rotating handle (1) is connected to the fixing ring (2).

6. The endoscopic ligation device according to claim 1, characterized in that: A guide tube (8) is provided at the bottom of the handle seat (5), and the pull rope (7) passes through the guide tube (8) and extends to the outside.

7. The endoscopic ligation device according to claim 5, characterized in that: Support walls are provided on both sides of the handle seat (5), a first circular hole (51) and a second circular hole are respectively provided on the two support walls, and a protruding structure B (53) is provided on the outer side of the second circular hole; The winding ring (3) is installed between two supporting walls, and two ends of the fixing ring (2) pass through the first circular hole (51) and the second circular hole respectively.

8. The endoscopic ligation device according to claim 7, characterized in that: The fixing ring (2) is a hollow cylinder, a first end surface of the fixing ring (2) is provided with a groove A (2101), and a side through groove (2102) is provided on the groove A (2101); A plurality of convex structures C (2201) distributed along the axial direction are arranged on the second end surface of the fixing ring (2) close to the groove A (2101), and a convex circular ring (2202) distributed along the radial direction is arranged on the second end surface of the fixing ring (2) away from the groove A (2101); The inner surface of the third end face of the fixing ring (2) is provided with a groove B (2301) distributed along the axial direction; The winding ring (3) is provided with an inner hole (33), and a plurality of grooves C (31) distributed along the axial direction are arranged in the inner hole (33). The protruding structure C (2201) cooperates with the groove C (31). The outer wall of the winding ring (3) is provided with a wire clamping groove (32), and the end of the pull rope (7) is fixed in the wire clamping groove (32).

9. The endoscopic ligation device according to claim 6, characterized in that: A cylindrical tube (54) is provided at the bottom of the handle seat (5), and the guide tube (8) is connected to the cylindrical tube (54); A sealing cap (6) is arranged inside the cylindrical tube (54), and a through hole is opened on the sealing cap (6), and the pull rope (7) passes through the through hole.

10. The endoscopic ligation device according to claim 3, characterized in that: The rotating handle (1) is provided with a rotating shaft, and an outer wall at one end of the rotating shaft is provided with a first groove (11) and a second groove (12), and a side of the second groove (12) close to the first groove (11) is provided with an inclined surface; The outer wall of one inner end of the rotating shaft is provided with a plurality of protruding structures A (13), and a gap exists between the protruding structures A (13) and the inner wall of the first circular ring (1501).

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