A chuck for a soft tissue clamp

Abstract

The present invention relates to the field of endoscopic instruments, and in particular to a chuck of a soft tissue clamp. The chuck comprises a protective sleeve and a clamping unit installed in the protective sleeve, wherein the protective sleeve is arranged outside the clamping unit, one end of the protective sleeve is a clamping end, and the other end is a limiting end; one end of the clamping unit extending outside the clamping end of the protective sleeve is the clamping end, and the other end of the clamping unit extends into the interior of the protective sleeve, and a limiting piece is arranged at the other end of the clamping unit, and the protective sleeve is provided with a limiting hole corresponding to the limiting piece at its limiting end. The clamping end can be prevented from opening and separating from the soft tissue at the wound, so as to facilitate the healing of the wound.

Description

Technical Field

[0001] The invention relates to the field of endoscopic instruments, and in particular to a clamp head of a soft tissue clamp. Background Art

[0002] With the rapid development of endoscopic diagnosis and treatment, the commonly used endoscopic repair method for incisions or perforations in the digestive system caused by surgery or other reasons is soft tissue clip closure repair. The soft tissue clip is inserted into the patient's body through the endoscope, and the clamp head of the soft tissue clip can clamp the wound to facilitate wound healing.

[0003] The clamping head of the existing soft tissue clamp is easy to fall off from the wound, making the wound difficult to heal. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a chuck of a soft tissue clamp, which can prevent the chuck from falling off from the wound and facilitate the healing of the wound.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A chuck of a soft tissue clamp comprises a protective sleeve and a clamping unit installed in the protective sleeve, wherein the protective sleeve is arranged outside the clamping unit, one end of the protective sleeve is a clamping end, and the other end is a limiting end; one end of the clamping unit extending outside the clamping end of the protective sleeve is the clamping end, and the other end of the clamping unit extends into the interior of the protective sleeve, a limiting piece is arranged at the other end of the clamping unit, and the protective sleeve is provided with a limiting hole corresponding to the limiting piece at its limiting end.

[0007] Furthermore, the clamping unit includes a tissue clamping arm, and the end of the tissue clamping arm extending outside the clamping end of the protective sleeve constitutes a clamping end; the clamping unit also includes a pulling mechanism connected to the tissue clamping arm, and the limiting piece is arranged on the pulling mechanism. The pulling mechanism is squeezed into the protective sleeve and is used to fix the position of the tissue clamping arm extending into the protective sleeve.

[0008] Furthermore, the pulling mechanism includes an elastic clip connected to the tissue clamp arm, and the limiting member is a first elastic member and a second elastic member arranged on the side of the two elastic clamp arms of the elastic clip facing the inner wall of the protective cover, and the opening elasticity of the elastic clip makes the first elastic member and the second elastic member tightly pressed against the inner wall of the protective cover.

[0009] Furthermore, a first extrusion member and a second extrusion member are respectively provided on opposite sides of the two elastic clamp arms.

[0010] Further preferably, the protective sleeve is provided with an annular clamping groove on its outer wall surface close to the limiting end, and the annular clamping groove intersects or deviates from the limiting hole on the protective sleeve.

[0011] Further preferably, the first extrusion member and the second extrusion member are both provided with a slot at positions opposite to each other.

[0012] Further preferably, a first limiting portion is provided inside the protective cover, and the tissue clamping arms are located on both sides of the first limiting portion to prevent the clamping unit from falling out of the protective cover.

[0013] Further preferably, anti-rotation parts are provided inside the protective cover at both sides of the clamping unit to prevent the clamping unit from relatively rotating inside the protective cover.

[0014] Further preferably, a V-shaped protrusion is provided on one clamping end of the tissue clamp arm, and a V-shaped groove corresponding to the V-shaped protrusion is provided on the other clamping end of the tissue clamp arm.

[0015] Further preferably, the longitudinal cross-section of the tissue clamp arm is U-shaped.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) The protective cover and the clamping unit are separate structures. The clamping unit can move inside the protective cover. When the limiting member is placed in the limiting hole, the clamping end closes and clamps the wound. Since the limiting member is in the limiting hole, the clamping end can be prevented from opening and separating from the soft tissue at the wound, thereby facilitating the healing of the wound.

[0018] (2) The V-shaped protrusion and the V-shaped groove on the clamping end of the tissue clamp arm cooperate with each other to increase the clamping degree of the clamping end and prevent the tissue clamp arm from separating from the soft tissue incision.

[0019] (3) A first limiting portion is provided inside the protective cover. The first limiting portion is a limiting rod. Two tissue clamping arms are located on both sides of the limiting rod to prevent the entire clamping unit from falling out of the protective cover. Anti-rotation portions are provided on both sides of the clamping unit inside the protective cover to prevent the clamping unit from rotating relative to the protective cover, thereby improving the accuracy of the clamping position. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the soft tissue clip of the present invention;

[0021] Figure 2 and Figure 8 For the present invention Figure 1 A partial cross-sectional view of

[0022] Figure 3 It is a structural diagram of the release pliers of the present invention;

[0023] Figure 4 For the present invention Figure 3 AA section view in;

[0024] Figure 5 For the present invention Figure 1 The enlarged view of point I in the middle;

[0025] Figure 6 For the present invention Figure 2 The enlarged view of II in the middle;

[0026] Figure 7 It is a cross-sectional view of the protective cover of the present invention.

[0027] The meanings of the symbols in the figure are as follows:

[0028] 10-protective cover 100-annular clamping groove 11-tissue clamping arm 110-protruding part 111-groove part

[0029] 12-first limiting portion 13-elastic clip 130-first elastic member

[0030] 131 - first extrusion member 132 - second elastic member 133 - second extrusion member 14 - anti-rotation portion

[0031] 20-outer tube 200-second limiter 21-pull rod 210-cable cap 211-cable ring 22-handle

[0032] 220-first finger ring 221-limiting frame 30-release clamp body 31-second finger ring 32-push-pull rod

[0033] 33-Pull ring 34-Release clamp arm DETAILED DESCRIPTION

[0034] The following is a clear and complete description of the technical solution of the present invention in combination with the embodiments and the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] A chuck of a soft tissue clamp comprises a protective cover 10 and a clamping unit installed in the protective cover 10. The protective cover 10 is sleeved outside the clamping unit, one end of the protective cover 10 is a clamping end, and the other end is a limiting end. One end of the clamping unit extending outside the clamping end of the protective cover 10 is the clamping end, and the other end of the clamping unit extends into the interior of the protective cover 10. A limiting piece is arranged at the other end of the clamping unit, and the protective cover 10 is provided with a limiting hole corresponding to the limiting piece at its limiting end.

[0037] like Figure 1 and Figure 2As shown, the clamping unit includes two tissue clamping arms 11, which are opened at a certain angle, and one end of the tissue clamping arm 11 extending out of the protective cover 10 is the clamping end. Figure 5 As shown, one of the clamping ends is provided with a V-shaped protrusion 110, and the other clamping end is provided with a V-shaped groove 111. When the two clamping ends are closed, the protrusion 110 is stuck in the groove 111, which can better fix the soft tissue incision. Figure 1 and Figure 5 As shown, the tissue clamp arm 11 is arched to increase the tolerance. A pulling mechanism is connected to the tissue clamp arm 11 to pull the tissue clamp arm 11 to move in the protective cover 10. In this embodiment, the pulling mechanism includes an elastic clamp 13 connected to the tissue clamp arm 11, and a first elastic member 130 and a second elastic member 132 are provided on the end surface of the elastic clamp 13 facing the protective cover 10. Figure 6 As shown, the contact surfaces of the first elastic member 130 and the second elastic member 132 with the protective cover 10 are both arc-shaped, which facilitates the two elastic members to enter and exit the two limiting holes opened on the protective cover 10. In this embodiment, the two ends of the two elastic members can also be right angles, and the elastic clip 13 is provided with a first extrusion member 131 at a position corresponding to the first elastic member 130, and the elastic clip 13 is provided with a second extrusion member 133 at a position corresponding to the second elastic member 132. The first extrusion member 131 and the second extrusion member 133 are both provided with a card slot at the corresponding positions.

[0038] In this embodiment, Figure 8 As shown, two limiting holes are provided on the protective cover 10 so as to change the opening and closing state of the clamping end of the tissue clamp arm 11 by moving the positions of the first elastic member 130 and the second elastic member 132 in the protective cover 10. Alternatively, only one limiting hole may be provided on the protective cover 10, such as Figure 2 As shown, an annular clamp groove 100 is provided at a position opposite to the limiting hole. When the first elastic member 130 and the second elastic member 132 need to be moved, one clamp head clamps the annular clamp groove 100 and the other clamp head clamps the first elastic member 130 .

[0039] In this embodiment, the tissue clamp arm 11 is an integrated structure, and a torsion spring is provided on the tissue clamp arm 11 so that the tissue clamp arm 11 has opening elasticity.

[0040] The tissue clamp arm 11 and the pulling mechanism are both made of elastic materials. The first extrusion member 131 , the second extrusion member 133 , the first elastic member 130 and the second elastic member 132 are squeezed into the protective cover 10 to fix the position of the tissue clamp arm 11 extending into the protective cover 10 .

[0041] A first limiting portion 12 is provided inside the protective cover 10. In this embodiment, the first limiting portion 12 is a limiting rod. The tissue clamping arms 11 are located on both sides of the first limiting portion 12 to prevent the clamping unit from falling off from the protective cover 10. Figure 7 As shown, anti-rotation parts 14 are provided inside the protective cover 10 on both sides of the clamping unit, so that a channel matching the shape of the pulling mechanism is formed inside the protective cover 10 to prevent the clamping unit from relatively rotating inside the protective cover 10 .

[0042] Example 2

[0043] Based on Example 1, a soft tissue clamp includes the following components:

[0044] The chuck part includes a protective cover 10 and a clamping unit installed in the protective cover 10. The protective cover 10 is sleeved on the outside of the clamping unit. One end of the protective cover 10 is a clamping end, and the other end is a limiting end. One end of the clamping unit extending to the outside of the clamping end of the protective cover 10 is the clamping end, and the other end of the clamping unit extends into the interior of the protective cover 10.

[0045] The clamping part is used to be connected with the clamping unit and move the position of the clamping unit in the protective cover 10 to control the opening and closing state of the clamping end of the clamping unit; a fixing part is arranged on the clamping part, and when the clamping part moves the clamping unit toward the clamping end of the protective cover 10 until the clamping end reaches the maximum opening angle, the fixing part enables the clamping end to maintain the maximum opening angle.

[0046] like Figure 1 and Figure 2 As shown, the clamping part includes an outer tube 20 sleeved on the surface of the protective cover 10, a pull rod 21 is arranged in the outer tube 20, and a cable cap 210 is arranged at one end of the pull rod 21 extending into the protective cover 10, and the cable cap 210 is clamped in a clamping groove formed by the first extrusion member 131 and the second extrusion member 133. The pull rod 21 is a bendable metal rod, an elastic component, and the cable cap 210 can be wedge-shaped or spherical.

[0047] The outer tube 20 is provided with a positioning hole connected to the limiting hole. The outer tube 20 is connected with a second limiting portion 200 . The second limiting portion 200 cooperates with the limiting hole and the positioning hole to fix the protective cover 10 .

[0048] The tail end of the outer tube 20 is provided with a handle 22, and the tail end of the handle 22 is provided with a limit frame 221. The end of the pull rod 21 extending into the limit frame 221 is connected with a grommet 211, and the grommet 211 is slidably arranged in the limit frame 221. It can prevent the pull rod 21 from moving a distance exceeding a set value. When the grommet 211 touches the limit frame 221, the clamping end of the tissue clamp arm 11 is just closed, and the cable cap 210 is separated from the slot formed by the first extrusion member 131 and the second extrusion member 133, thereby improving the accuracy of the operation.

[0049] When the grommet 211 is pushed, the grommet 211 pushes the pull rod 21 toward the clamp end of the protective cover 10 until the pull rod 21 pushes the tissue clamp arm 11 to fully extend to the outside of the protective cover 10. At this time, the retaining part clamps the grommet 211, and the position of the grommet 211 is restricted, thereby restricting the position of the tissue clamp arm 11, so that the tissue clamp arm 11 maintains the maximum opening angle. When it is necessary to pull the grommet 211, the retaining part will be opened to separate the retaining part from the grommet 211. In this embodiment, the retaining part is a U-shaped elastic iron clamp.

[0050] Example 3

[0051] Based on the embodiments 1 and 2, a chuck release pliers comprises the following components:

[0052] The chuck part includes a protective sleeve 10 and a clamping unit installed in the protective sleeve 10. The protective sleeve 10 is sleeved outside the clamping unit. One end of the protective sleeve 10 is a clamping end, and the other end is a limit end. One end of the clamping unit extending outside the clamping end of the protective sleeve 10 is the clamping end, and the other end of the clamping unit extends into the interior of the protective sleeve 10.

[0053] The release clamp portion is used to drive the clamping unit to move toward the clamping end of the protective sleeve 10 to open the clamping end when the clamping end of the clamping unit is clamped.

[0054] The release clamp part includes a release clamp body 30, that is, a release clamp hose, a release clamp arm 34 and a push-pull rod 32. The release clamp arm 34 is cross-placed and hinged on the release clamp body 30. A clamp arm telescopic linkage unit is connected between the release clamp arm 34 and the push-pull rod 32. In this embodiment, the clamp arm telescopic linkage unit is two metal connecting rods connected to the push-pull rod 32. The metal connecting rod is hinged to the release clamp arm 34. The hinge point of the metal connecting rod and the push-pull rod 32, the two hinge points of the metal connecting rod and the release clamp arm 34, and the two hinge points of the release clamp arm 34 constitute the telescopic unit. One end of the push-pull rod 32 extending outside the adjustment clamp hose is connected to a pull ring 33.

[0055] There are two groups of limiting holes. The release clamp arm 34 adjusts the position of the pulling mechanism in the protective cover 10 by squeezing the first elastic member 130 and the second elastic member 132 respectively placed in the two groups of limiting holes, thereby reducing the length of the tissue clamp arm 11 extending into the protective cover 10, so that the clamping end of the tissue clamp arm 11 opens.

[0056] A limiting hole and an annular clamping groove 100 can also be set at the limiting end of the protective sleeve 10, and the clamp arm 34 is released to clamp the annular clamping groove 100 and the limiting hole, so that the limiting end of the protective sleeve 10 is deformed, the first elastic member 130 and the second elastic member 132 are forced to be squeezed into the inside of the protective sleeve 10, and the tissue clamping arm 11 moves toward the clamping end of the protective sleeve 10, and the clamping end of the tissue clamping arm 11 opens.

[0057] Example 4

[0058] Based on embodiments 1, 2, and 3, a soft tissue clamping device includes the following components:

[0059] The chuck part includes a protective sleeve 10 and a clamping unit installed in the protective sleeve 10. The protective sleeve 10 is sleeved outside the clamping unit. One end of the protective sleeve 10 is a clamping end, and the other end is a limit end. One end of the clamping unit extending outside the clamping end of the protective sleeve 10 is the clamping end, and the other end of the clamping unit extends into the interior of the protective sleeve 10.

[0060] The clamping part is used to connect with the clamping unit and move the position of the clamping unit in the protective cover 10 to control the opening and closing state of the clamping end of the clamping unit;

[0061] The release clamp portion is used to drive the clamping unit to move toward the clamping end of the protective sleeve 10 to open the clamping end when the clamping end of the clamping unit is clamped.

[0062] Example 5

[0063] Based on embodiments 1, 2, 3, and 4, the method for using the soft tissue clamping device includes the following steps:

[0064] S1, the clamp head and the clamping part form a soft tissue clamp, and the tissue clamp arm 11 and a part of the outer tube 20 of the soft tissue clamp are sent into the body through the channel of the endoscope until the clamping end of the opened tissue clamp arm 11 reaches the incision.

[0065] S2, pull the eyelet 211 until the eyelet 211 touches the inner wall of one side of the limit frame 221. At this time, the clamping end is closed, and the pull rod 21 carries the first elastic member 130 and the second elastic member 132 to move to the limit hole opened in the protective cover 10, and the first elastic member 130 and the second elastic member 132 pop up the second limit part 200 in the limit hole, and the first extrusion member 131 and the second extrusion member 133 are separated, and the cable cap 210 of the pull rod 21 is separated from the two extrusion members, and the outer tube 20 and the protective cover 10 are separated, that is, the clamping part is separated from the clamping part.

[0066] S3, by pulling the first finger ring 220, the outer tube 20 is moved outside the body. At this time, the clamping head closes the incision and remains in the body. If the clamping end of the tissue clamp arm 11 is clamped at the ideal position, the operation is ended; if the clamping end of the tissue clamp arm 11 is not in the ideal position, step S4 is performed.

[0067] S4, the release clamp is sent to the position of the clamp head through the endoscope channel, and the push-pull rod 32 is tightened by pulling the ring 33, so that the clamping ends of the two release clamp arms 34 squeeze the first elastic member 130 and the second elastic member 132, and the two elastic members and the protective cover 10 are relatively displaced, and the clamping ends of the tissue clamp arms 11 squeezed on the inner wall of the protective cover 10 are opened, and the tissue clamp arms 11 are separated from the soft tissue clamped in an undesirable position, and the second finger ring 31 is pulled, and the release clamp carries the clamp head out of the body. Repeat steps S1, S2 and S3 until the clamp head is clamped at the ideal position.

Claims

1. A soft tissue clamp, characterized in that: The invention comprises a protective sleeve (10) and a clamping unit installed in the protective sleeve (10), wherein the protective sleeve (10) is sleeved on the outside of the clamping unit, one end of the protective sleeve (10) is a clamping end, and the other end is a limiting end; the end of the clamping unit extending outside the clamping end of the protective sleeve (10) is the clamping end, and the other end of the clamping unit extends into the interior of the protective sleeve (10); a limiting member is arranged at the other end of the clamping unit, and the protective sleeve (10) is provided with a limiting hole corresponding to the limiting member at its limiting end; The clamping unit comprises a tissue clamping arm (11), the end of the tissue clamping arm (11) extending outside the clamping end of the protective sleeve (10) constituting a clamping end; the clamping unit further comprises a pulling mechanism connected to the tissue clamping arm (11), the limiting member being arranged on the pulling mechanism, the pulling mechanism being squeezed into the protective sleeve (10) and being used to fix the position of the tissue clamping arm (11) extending into the protective sleeve (10); The pulling mechanism comprises an elastic clip (13) connected to the tissue clip arm (11); the limiting member is a first elastic member (130) and a second elastic member (132) arranged on the side of the two elastic clip arms of the elastic clip (13) facing the inner wall of the protective sleeve (10); the opening elasticity of the elastic clip (13) causes the first elastic member (130) and the second elastic member (132) to be tightly pressed against the inner wall of the protective sleeve (10); The two elastic clamp arms are also provided with a first extrusion piece (131) and a second extrusion piece (133) on one side opposite to each other; The first extrusion piece (131) and the second extrusion piece (133) are both provided with a slot at positions opposite to each other; The clamping portion comprises an outer tube (20) sleeved on the surface of the protective sleeve (10), a pull rod (21) is provided in the outer tube (20), a cable cap (210) is provided at one end of the pull rod (21) extending into the interior of the protective sleeve (10), and the cable cap (210) is clamped in a clamping groove formed by the first extruded component (131) and the second extruded component (133); The outer tube (20) is provided with a positioning hole communicating with the limiting hole, the outer tube (20) is connected with a second limiting portion (200), and the second limiting portion (200) cooperates with the limiting hole and the positioning hole to fix the protective sleeve (10); The cable ring (211) is pulled, the clamping end is closed, and the pull rod (21) carries the first elastic member (130) and the second elastic member (132) to move to the limiting hole opened in the protective sleeve (10), the first elastic member (130) and the second elastic member (132) pop up the second limiting portion (200) in the limiting hole, and the first extrusion member (131) and the second extrusion member (133) are separated, the cable cap (210) of the pull rod (21) is separated from the two extrusion members, and the outer tube (20) and the protective sleeve (10) are separated, that is, the protective sleeve (10) and the clamping unit installed in the protective sleeve (10) are separated from the clamping portion.

2. The soft tissue clip according to claim 1, characterized in that: The protective sleeve (10) is provided with an annular clamping groove (100) on its outer wall surface close to the limiting end, and the annular clamping groove (100) intersects or deviates from the limiting hole on the protective sleeve (10).

3. The soft tissue clip according to claim 1, characterized in that: A first limiting portion (12) is provided inside the protective sleeve (10), and the tissue clamping arms (11) are located on both sides of the first limiting portion (12) to prevent the clamping unit from falling out of the protective sleeve (10).

4. The soft tissue clip according to claim 3, characterized in that: Anti-rotation parts (14) are provided inside the protective sleeve (10) on both sides of the clamping unit, for preventing the clamping unit from relatively rotating inside the protective sleeve (10).

5. The soft tissue clip according to claim 4, characterized in that: A V-shaped protrusion (110) is provided on one clamping end of the tissue clamp arm (11), and a V-shaped groove (111) corresponding to the V-shaped protrusion (110) is provided on the other clamping end of the tissue clamp arm (11).

6. The soft tissue clip according to claim 5, characterized in that: The longitudinal cross-section of the tissue clamp arm (11) is U-shaped.

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