Laparoscopic plastic clip applicator with adjustable head angle

Abstract

The utility model belongs to the technical field of medical devices, and specifically relates to a laparoscopic plastic clip applicator with adjustable head end angle, comprising a head end jaw assembly, a connection adjustment assembly and an operation control assembly, wherein the head end jaw assembly is connected to the operation control assembly through the connection adjustment assembly; the connection adjustment assembly comprises a swing arm sleeve, a front sleeve, a swing arm pull rod and a pull rope; the head end jaw assembly is connected to one end of the swing arm sleeve; the pull rope, the front sleeve and the swing arm pull rod are connected to the other end of the swing arm sleeve at one end close to the head end jaw assembly, and the pull rope, the front sleeve and the swing arm pull rod are connected to the operation control assembly at one end away from the head end jaw assembly; the swing arm sleeve is controlled to rotate by controlling the movement of the swing arm pull rod, thereby driving the head end jaw assembly to swing within the set angle range. The utility model makes the head end jaw assembly into an angle-adjustable form, which provides greater flexibility for clamping organs in different orientations during surgical operations, and improves the efficiency of the clamping steps during the operation.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a laparoscopic plastic clip applicator with adjustable head end angle. Background Art

[0002] Hemostasis is an important part of many surgical operations. The conventional surgical hemostasis method is ligation, which uses clip appliers for surgical hemostasis, so clip appliers have received a large market demand. However, the front end clamp assembly of the conventional clip appliers cannot adjust the angle relative to the sheath, and cannot be adjusted to the required angle according to actual needs during actual use. It can only clamp blood vessels and other organs at specific angles. When it is used for minimally invasive surgery through a cannula, it is limited by the cannula channel. When the clamped organ is at a certain angle with the cannula, it will cause inconvenience in clamping, which is a major pain point in the current surgical process. Utility Model Content

[0003] The utility model aims to provide a laparoscopic plastic clip applicator with adjustable head angle, so as to solve the problem that the front end clamp assembly of the existing clip applicator cannot adjust the angle relative to the sheath and can only clamp blood vessels and other organs at specific angles.

[0004] In order to solve the above problems, the utility model provides a laparoscopic plastic clip applier with adjustable head end angle, characterized in that it comprises: a head end jaw assembly, a connection adjustment assembly and an operation control assembly, wherein the head end jaw assembly is connected to the operation control assembly through the connection adjustment assembly;

[0005] The connection adjustment assembly includes a swing arm sleeve, a front sleeve, a swing arm pull rod and a pull rope;

[0006] The head end jaw assembly is connected to one end of the swing arm sleeve;

[0007] The pull rope is arranged inside the swing arm pull rod, and the swing arm pull rod is arranged inside the front sleeve. One end of the pull rope, the front sleeve and the swing arm pull rod close to the head end jaw assembly is connected to the other end of the swing arm sleeve, and one end of the pull rope, the front sleeve and the swing arm pull rod away from the head end jaw assembly is connected to the operation control assembly;

[0008] The swing arm sleeve is controlled to rotate by controlling the movement of the swing arm pull rod, thereby driving the head end jaw assembly to swing within a set angle range.

[0009] The head end jaw assembly comprises a head end jaw, a jaw connecting piece, a jaw sliding sleeve and a compression spring, and the head end jaw is connected to the jaw sliding sleeve via the jaw connecting piece;

[0010] The compression spring is arranged between the pliers mouth sliding sleeve and the swing arm sleeve.

[0011] In certain preferred embodiments, the set angle is 60°.

[0012] The operation control assembly includes a handle, a handle wrench and a handle spring;

[0013] The handle is connected to the handle wrench, and the handle spring is arranged between the handle and the handle wrench;

[0014] The handle and the handle wrench are provided with through holes.

[0015] The operation control assembly also includes a rear sleeve and a transmission mechanism;

[0016] One end of the rear sleeve is connected to the handle; the other end of the rear sleeve is connected to the transmission mechanism;

[0017] The swing arm pull rod is connected to the transmission mechanism through the through hole and the rear sleeve in sequence;

[0018] The swing arm pull rod is driven to move by controlling the movement of the transmission mechanism.

[0019] One end of the pull rope is connected to the pliers mouth sliding sleeve, and the other end of the pull rope is connected to the handle wrench.

[0020] The transmission mechanism comprises a first transmission assembly and a second transmission assembly;

[0021] The first transmission assembly is connected to the second transmission assembly;

[0022] The swing arm pull rod is connected to the first transmission assembly;

[0023] The other end of the rear sleeve is connected to the second transmission assembly.

[0024] In certain preferred embodiments, the swing arm sleeve is connected to the front sleeve and the swing arm pull rod by a pin.

[0025] In certain preferred embodiments, the head end pliers mouth and the pliers mouth connecting piece are connected by a pin, and the pliers mouth sliding sleeve and the pliers mouth connecting piece are connected by a pin.

[0026] In some preferred embodiments, the first transmission assembly is connected to the swing arm pull rod by a pin.

[0027] The above technical solution of the utility model has the following beneficial technical effects:

[0028] The utility model provides a laparoscopic plastic clip applicator with adjustable head end angle, wherein a head end jaw assembly is connected to an operation control assembly through a connection adjustment assembly, a swing arm sleeve, a front sleeve, a swing arm pull rod and a pull rope are provided, and the swing arm sleeve is controlled to rotate by controlling the movement of the swing arm pull rod, thereby driving the head end jaw assembly to swing within a set angle range. The head end jaw assembly of the clip applicator is made into an angle-adjustable form, which provides greater flexibility for clamping organs in different positions during surgical operations, and improves the efficiency of the clamping steps during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of a laparoscopic plastic clip applicator with adjustable head angle of the utility model;

[0030] Figure 2 It is a partial structural schematic diagram of a laparoscopic plastic clip applicator with adjustable head angle of the utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the jaw assembly of the head end of a laparoscopic plastic clip applier with adjustable head end angle;

[0032] Figure 4 This is a schematic diagram of the transmission mechanism of a laparoscopic plastic clip applicator with adjustable head angle of the utility model;

[0033] Figure 5 The utility model is a schematic diagram of the structure of a laparoscopic plastic clip applier with adjustable head end angle, a jaw assembly at the head end and a connection adjustment assembly.

[0034] Reference numerals:

[0035] 1-head end jaw; 2-jaw connecting plate; 3-jaw sliding sleeve; 4-compression spring; 5-swing arm sleeve; 6-front sleeve; 7-swing arm pull rod; 8-pull rope; 9-handle; 10-handle wrench; 11-handle spring; 12-rear sleeve; 13-transmission mechanism; 1301-first transmission assembly; 1302-second transmission assembly. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0037] The accompanying drawings show schematic diagrams of layer structures according to embodiments of the present invention. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clarity. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0038] In the description of the present invention, it should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] Based on the problems pointed out in the background technology that the front end clamp assembly of the existing clamp applicator cannot adjust the angle relative to the sheath, and cannot be adjusted to the required angle according to actual needs during actual use, and can only clamp blood vessels and other organs at specific angles, the utility model provides a laparoscopic plastic clip applicator with adjustable head end angle, and the jaw assembly at the head end of the clamp applicator is made into an angle-adjustable form, which provides greater flexibility for clamping organs in different orientations during surgical operations and improves the efficiency of the clamping steps during the operation.

[0040] like Figures 1 to 5 As shown, the laparoscopic plastic clip applicator with adjustable head end angle of the utility model comprises a head end jaw assembly, a connection adjustment assembly and an operation control assembly, wherein the head end jaw assembly is connected to the operation control assembly via the connection adjustment assembly.

[0041] The head end jaw assembly comprises a head end jaw 1, a jaw connecting piece 2, a jaw sliding sleeve 3 and a compression spring 4;

[0042] The head end forceps mouth 1 has two forceps mouth pieces, and the two forceps mouth pieces are cross-connected. The head end forceps mouth 1 is used to directly contact and clamp the organ, and the two forceps mouth pieces play the role of clamping the clamped organ;

[0043] The jaw connecting piece 2 has two jaw connecting pieces 2 corresponding to the two jaw pieces one by one; the two jaw pieces are respectively connected to one end of the two jaw connecting pieces 2, and the other ends of the two jaw connecting pieces 2 intersect at one point and are connected to one end of the jaw sliding sleeve 3;

[0044] The jaw connecting piece 2 opens and closes with the reciprocating movement of the jaw sliding sleeve 3, thereby controlling the opening and closing of the jaw 1 at the head end.

[0045] Preferably, the head end pliers mouth 1 and the pliers mouth connecting piece 2 are connected by a pin shaft;

[0046] Preferably, the pliers mouth connecting piece 2 and the pliers mouth sliding sleeve 3 are connected by a pin shaft.

[0047] The use of a pin connection can reduce energy loss during transmission and improve overall mechanical efficiency. Its structural design is relatively simple, making the assembly and maintenance of the entire mechanism relatively easy. Of course, in addition to the pin connection, those skilled in the art can also replace the pin with other rotating parts or rotatable mechanisms.

[0048] The connection adjustment assembly includes a swing arm sleeve 5, a front sleeve 6, a swing arm pull rod 7 and a pull rope 8;

[0049] The other end of the pliers mouth sliding sleeve 3 is connected to one end of the swing arm sleeve 5;

[0050] The compression spring 4 is arranged between the jaw sliding sleeve 3 and the swing arm sleeve 5, providing a reaction force for the jaw sliding sleeve 3, so that the jaw 1 at the head end remains in a normally open state when not subjected to external force, which helps to ensure that the clamp is in a safe state when not activated to avoid accidental clamping or damage to tissue.

[0051] Preferably, the other end of the jaw sliding sleeve 3 is connected to one end of the swing arm sleeve 5 by a pin;

[0052] The pull rope 8 is arranged inside the swing arm pull rod 7, and the swing arm pull rod 7 is arranged inside the front sleeve 6. One end of the swing arm pull rod 7 and the front sleeve 6 close to the head end jaw assembly is connected to the other end of the swing arm sleeve 5;

[0053] One end of the pull rope 8 close to the head end jaw assembly is connected to the jaw connecting piece 2. By dragging the pull rope 8, the compression spring 4 is compressed and released to control the jaw sliding sleeve 3 to move forward and backward, control the jaw connecting piece 2 to open and close, and then control the jaw 1 of the head end to open and close. This mechanical transmission method is simple and efficient, and can quickly respond to operating instructions.

[0054] Preferably, the front sleeve 6 and the swing arm tie rod 7 are connected to the swing arm sleeve 5 via a pin;

[0055] Preferably, the pull cord 8 is a flexible metal wire.

[0056] The operation control assembly includes a handle 9, a handle wrench 10, a handle spring 11, a rear sleeve 12 and a transmission mechanism 13;

[0057] The handle 9 is connected to the handle wrench 10;

[0058] The handle spring piece 11 is arranged between the handle 9 and the handle wrench 10. The handle spring piece 11 has a certain elastic force, which ensures that the handle wrench 10 and the handle 9 are in an open state without being subjected to external force, which helps to prevent misoperation or accidental closure. During surgery or precision operation, it can reduce the potential risks caused by mistouch or accidental action and improve the safety of operation.

[0059] Preferably, a groove is provided in the handle 9 to accommodate a corresponding handle wrench 10, and the handle 9 is connected to the handle wrench 10 via a pin;

[0060] In one embodiment, one end of the pull rope 8 away from the head end jaw assembly is connected to the handle wrench 10. When the handle wrench 10 is pressed, the handle spring piece 11 is further bent at the original bending degree, thereby compressing the compression spring 4 to control the jaw sliding sleeve 3 to move backward, control the jaw connecting piece 2 to close, and then control the closure of the head end jaw 1, thereby clamping the clamped organ; when the handle wrench 10 is released, the handle spring piece 11 is restored to its original bending degree, thereby releasing the compression spring 4 to control the jaw sliding sleeve 3 to move forward back to the original position, control the jaw connecting piece 2 to open, and then control the opening of the head end jaw 1.

[0061] Preferably, through holes are provided on the handle 9 and the handle wrench 10, and the swing arm pull rod 7 is connected to the transmission mechanism 13 through the through holes and the rear sleeve 12 in sequence.

[0062] One end of the rear sleeve 12 is connected to the handle 9, and the other end of the rear sleeve 12 is connected to the transmission mechanism 13. By controlling the movement of the transmission mechanism 13, the swing arm pull rod 7 is driven to move, thereby controlling the head end jaw assembly to swing left and right.

[0063] The transmission mechanism 13 includes a first transmission assembly 1301 and a second transmission assembly 1302;

[0064] The first transmission assembly 1301 is connected to the second transmission assembly 1302;

[0065] One end of the swing arm pull rod 7 away from the head end jaw assembly is connected to the first transmission assembly 1301;

[0066] The other end of the rear sleeve 12 is connected to the second transmission assembly 1302;

[0067] By controlling the second transmission component 1302 to move forward and backward relative to the rear sleeve 12, the first transmission component 1301 is controlled to move forward and backward, and the swing arm pull rod 7 is controlled to move forward and backward, and the head end jaw assembly is controlled to swing within a set angle range with the pin shaft connecting the swing arm sleeve 5 and the front sleeve 6 as the center.

[0068] In one embodiment, the first transmission assembly 1301 may adopt a first cylindrical cam, and the second transmission assembly 1302 may adopt a second cylindrical cam, and the first cylindrical cam is meshed with the second cylindrical cam;

[0069] Preferably, one end of the swing arm pull rod 7 away from the head end jaw assembly is connected to the first cylindrical cam via a pin;

[0070] Preferably, the other end of the rear sleeve 12 is connected to the second cylindrical cam by threaded engagement;

[0071] As the second cylindrical cam rotates and moves forward relative to the rear sleeve 12, the second cylindrical cam and the first cylindrical cam transmit force through the cam, so that the first cylindrical cam moves forward at the same time, thereby controlling the swing arm pull rod 7 to move forward, so that the head end jaw assembly swings to the left within the set angle range with the pin connecting the swing arm sleeve 5 and the front sleeve 6 as the center; as the second cylindrical cam rotates and moves backward relative to the rear sleeve 12, the second cylindrical cam and the first cylindrical cam transmit force through the cam, so that the first cylindrical cam moves backward at the same time, thereby controlling the swing arm pull rod 7 to move backward, so that the head end jaw assembly swings to the right within the set angle range with the pin connecting the swing arm sleeve 5 and the front sleeve 6 as the center.

[0072] In another embodiment, as the second cylindrical cam rotates to move forward relative to the rear sleeve 12, the second cylindrical cam and the first cylindrical cam transmit force through the cam, so that the first cylindrical cam moves forward at the same time, thereby controlling the swing arm pull rod 7 to move forward, so that the head end jaw assembly swings to the right within a set angle range with the pin connecting the swing arm sleeve 5 and the front sleeve 6 as the center; as the second cylindrical cam rotates to move backward relative to the rear sleeve 12, the second cylindrical cam and the first cylindrical cam transmit force through the cam, so that the first cylindrical cam moves backward at the same time, thereby controlling the swing arm pull rod 7 to move backward, so that the head end jaw assembly swings to the left within a set angle range with the pin connecting the swing arm sleeve 5 and the front sleeve 6 as the center. Of course, the above-mentioned first transmission assembly and second transmission assembly can also be replaced by a screw substructure.

[0073] Preferably, the setting angle is 60°;

[0074] Preferably, the range of the set angle includes 60°.

[0075] The above technical solution of the utility model has the following beneficial technical effects:

[0076] (1) The first transmission assembly 1301 is connected to the second transmission assembly 1302; one end of the swing arm pull rod 7 away from the head end jaw assembly is connected to the first transmission assembly 1301; the other end of the rear sleeve 12 is connected to the second transmission assembly 1302; by controlling the second transmission assembly 1302 to move forward and backward relative to the rear sleeve 12, the first transmission assembly 1301 is controlled to move forward and backward, and then the swing arm pull rod 7 is controlled to move forward and backward, and then the head end jaw assembly is controlled to swing left and right at a set angle with the pin connecting the swing arm sleeve 5 and the front sleeve 6 as the center. Making the head end jaw assembly into an angle-adjustable form provides greater flexibility for clamping organs in different orientations during surgery, increases the convenience of the operator to clamp and place the organs, and improves the efficiency of the clamping steps during surgery.

[0077] (2) The compression spring 4 is disposed between the jaw sliding sleeve 3 and the swing arm sleeve 5, and provides a reaction force for the jaw sliding sleeve 3, so that the jaw 1 at the head end remains in a normally open state when not subjected to external force, thereby helping to ensure that the clamp is in a safe state when not activated, thereby avoiding accidental clamping or damage to tissue.

[0078] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A laparoscopic plastic clip applicator with adjustable head angle, characterized in that: include: A head end jaw assembly, a connection adjustment assembly and an operation control assembly, wherein the head end jaw assembly is connected to the operation control assembly via the connection adjustment assembly; The connection adjustment assembly includes a swing arm sleeve, a front sleeve, a swing arm pull rod and a pull rope; The head end jaw assembly is connected to one end of the swing arm sleeve; The pull rope is arranged inside the swing arm pull rod, and the swing arm pull rod is arranged inside the front sleeve. One end of the pull rope, the front sleeve and the swing arm pull rod close to the head end jaw assembly is connected to the other end of the swing arm sleeve, and one end of the pull rope, the front sleeve and the swing arm pull rod away from the head end jaw assembly is connected to the operation control assembly; The swing arm sleeve is controlled to rotate by controlling the movement of the swing arm pull rod, thereby driving the head end jaw assembly to swing within a set angle range.

2. A laparoscopic plastic clip applier with adjustable head angle according to claim 1, characterized in that: The head end jaw assembly comprises a head end jaw, a jaw connecting piece, a jaw sliding sleeve and a compression spring, and the head end jaw is connected to the jaw sliding sleeve via the jaw connecting piece; The compression spring is arranged between the pliers mouth sliding sleeve and the swing arm sleeve.

3. The laparoscopic plastic clip applier with adjustable head angle according to claim 1, characterized in that: The setting angle is 60°.

4. The laparoscopic plastic clip applier with adjustable head angle according to claim 2, characterized in that: The operation control assembly includes a handle, a handle wrench and a handle spring; The handle is connected to the handle wrench, and the handle spring is arranged between the handle and the handle wrench; The handle and the handle wrench are provided with through holes.

5. The laparoscopic plastic clip applier with adjustable head angle according to claim 4, characterized in that: The operation control assembly also includes a rear sleeve and a transmission mechanism; One end of the rear sleeve is connected to the handle; the other end of the rear sleeve is connected to the transmission mechanism; The swing arm pull rod is connected to the transmission mechanism through the through hole and the rear sleeve in sequence; The swing arm pull rod is driven to move by controlling the movement of the transmission mechanism.

6. The laparoscopic plastic clip applier with adjustable head angle according to claim 4, characterized in that: One end of the pull rope is connected to the pliers mouth sliding sleeve, and the other end of the pull rope is connected to the handle wrench.

7. The laparoscopic plastic clip applier with adjustable head angle according to claim 5, characterized in that: The transmission mechanism comprises a first transmission assembly and a second transmission assembly; The first transmission assembly is connected to the second transmission assembly; The swing arm pull rod is connected to the first transmission assembly; The other end of the rear sleeve is connected to the second transmission assembly.

8. The laparoscopic plastic clip applier with adjustable head angle according to claim 1, characterized in that: The swing arm sleeve is connected with the front sleeve and the swing arm pull rod by a pin shaft.

9. The laparoscopic plastic clip applier with adjustable head angle according to claim 2, characterized in that: The head end pliers mouth and the pliers mouth connecting piece are connected by a pin shaft, and the pliers mouth sliding sleeve and the pliers mouth connecting piece are connected by a pin shaft.

10. The laparoscopic plastic clip applier with adjustable head angle according to claim 7, characterized in that: The first transmission assembly is connected to the swing arm pull rod by a pin.

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