Single-pole grasping forceps

Abstract

The utility model relates to single-pole grasping forceps, and belongs to the field of medical instruments. The forceps comprise a forceps handle mechanism, a forceps rod mechanism and a forceps head mechanism, the forceps head mechanism is installed at one end of the forceps rod mechanism, the forceps handle mechanism is installed at the other end of the forceps rod mechanism, and the forceps head mechanism is controlled by the forceps handle mechanism to be opened and closed, and is structurally characterized in that the forceps head mechanism comprises a first forceps head, a second forceps head, a forceps seat, a connecting piece and a connecting block, the first forceps head and the second forceps head are both rotationally installed on the forceps seat, the first forceps head and the second forceps head are each rotationally connected with one end of one connecting piece, the other ends of the two connecting pieces are both rotationally connected with the connecting block, the connecting block is located between the two connecting pieces, and the forceps rod mechanism comprises an inner pull rod, an outer sleeve and an insulating tube. The insulating tube is sleeved outside the outer sleeve, the outer sleeve is sleeved outside the inner pull rod, one end of the inner pull rod is connected with the connecting block, and one end of the outer sleeve and one end of the insulating tube are connected with the clamp seat.

Description

TECHNICAL FIELD

[0001] The utility model relates to a single pole grab pincers and belongs to the field of medical instruments. BACKGROUND

[0002] In clinic, laparoscope is one of the most widely used surgical operation modes. Laparoscopic operation is to use laparoscope and its related instruments to enter the body cavity from the puncture hole on the body surface to replace the glasses and hands of the operation doctor, and then to perform the operation. It has the advantages of safety, small trauma, fast recovery of patients after operation, less bleeding, short hospitalization time, less body surface scar and less adhesion.

[0003] The separation pincers are commonly used instruments for laparoscopic operation, which mainly include single pole and double pole. The separation pincers are usually controlled by the handle to move the lever, and the lever controls the opening and closing of the head. The connection mode of the head and the lever is disclosed in the patent document with the application number of 2017207072527, a double pole electrocoagulation separation pincers. When the lever controls the opening and closing of the head, the opening and closing range of the head is small, which is not conducive to grasping the tissue. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the above-mentioned deficiencies in the prior art, and provides a single pole grab pincers with reasonable structure design.

[0005] The utility model solves the above-mentioned technical scheme: the single pole grab pincers, including handle mechanism, lever mechanism and head mechanism, the head mechanism is installed at one end of the lever mechanism, the handle mechanism is installed at the other end of the lever mechanism, and the head mechanism is controlled to open and close by the handle mechanism, and its structural characteristics are that: the head mechanism includes first head, second head, pincette seat, connecting piece and connecting block, the first head and the second head are rotatably installed on the pincette seat, the first head and the second head are rotatably connected with one end of a connecting piece respectively, and the other end of the two connecting pieces is rotatably connected with the connecting block.

[0006] Further, the connecting block is located between the two connecting pieces.

[0007] Further, the lever mechanism includes inner pull rod, outer sleeve and insulating tube, the insulating tube is sleeved outside the outer sleeve, the outer sleeve is sleeved outside the inner pull rod, one end of the inner pull rod is connected with the connecting block, and one end of the outer sleeve and the insulating tube is connected with the pincette seat.

[0008] Further, one end of the inner pull rod is provided with a clamping block, the connecting block is provided with a clamping groove, and the clamping block is located in the clamping groove.

[0009] Further, the handle mechanism comprises a front handle, a rear handle, a rotating wheel, a plug, a fixing sleeve, a connecting seat, a nut and a first spring, the rear handle is rotatably installed on the front handle, the fixing sleeve is fixed on the front handle, the plug and the connecting seat are respectively installed on two ends of the fixing sleeve, the inner tube of the plug penetrates through the fixing sleeve, the connecting seat and the first spring, the nut is screwed on the inner tube of the plug, the two ends of the first spring are respectively in abutment with the connecting seat and the nut, the rotating wheel is fixed with the plug, and the other end of the outer sleeve is fixed with the plug.

[0010] Further, the rear handle is provided with a ball groove, and the other end of the inner pull rod is provided with a ball head, and the ball head is located in the ball groove.

[0011] Further, the fixing sleeve is provided with a cavity, and a second spring and a steel ball are installed in the cavity, the two ends of the second spring are respectively in abutment with the cavity and the steel ball, and the plug is provided with a recess hole matched with the steel ball.

[0012] Further, the front handle is installed with an electrode.

[0013] Compared with the prior art, the utility model has the advantages that the first clamp head and the second clamp head are installed on the clamp seat and are connected with the connecting block through two connecting sheets, so that the rear handle can make the first clamp head and the second clamp head have a larger opening and closing range when driving the inner pull rod to move in a small range, and the organization is more favorable to be grabbed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is the cross-sectional structure schematic view of the monopolar grab tongs of the utility model embodiment.

[0015] Fig. 2 is the cross-sectional structure schematic view of the handle mechanism of the utility model embodiment.

[0016] Fig. 3 is the front view structure schematic view of the clamp head mechanism of the utility model embodiment.

[0017] Fig. 4 is the top view structure schematic view of the clamp head mechanism of the utility model embodiment.

[0018] In the drawing: handle mechanism 1, clamp rod mechanism 2, clamp head mechanism 3,

[0019] front handle 11, rear handle 12, rotating wheel 13, plug 14, fixing sleeve 15, connecting seat 16, nut 17, ball groove 18, first spring 19, second spring 191, steel ball 192, electrode 193,

[0020] inner pull rod 21, outer sleeve 22, insulating tube 23, ball head 24, clamping block 25,

[0021] The first jaw 31, the second jaw 32, the jaw seat 33, the connecting piece 34, the connecting block 35 and the clamping groove 36. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail below by combining with the drawings and through examples, the following examples are the explanation of the utility model and the utility model is not limited to the following examples.

[0023] Embodiment

[0024] Reference Figs. 1 to 4 It is understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the limiting conditions that the utility model can be implemented, so they do not have the substantial meaning of technology, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose that the utility model can produce, should still fall within the range that the technical content disclosed by the utility model can cover. At the same time, if the words such as 'up', 'down', 'left', 'right','middle' and 'one' are used in the specification, they are only for the convenience of clear description, and are not used to limit the range that the utility model can be implemented, the change or adjustment of relative relationship, without substantially changing the technical content, is also regarded as the scope that the utility model can be implemented.

[0025] The single pole grabber in the embodiment comprises a handle mechanism 1, a lever mechanism 2 and a jaw mechanism 3, the jaw mechanism 3 is installed at one end of the lever mechanism 2, the handle mechanism 1 is installed at the other end of the lever mechanism 2, and the jaw mechanism 3 is controlled to open and close by the handle mechanism 1.

[0026] The jaw mechanism 3 in the embodiment comprises a first jaw 31, a second jaw 32, a jaw seat 33, a connecting piece 34 and a connecting block 35, the first jaw 31 and the second jaw 32 are both rotatably installed on the jaw seat 33, the first jaw 31 and the second jaw 32 are respectively rotatably connected with one end of a connecting piece 34, the other end of the two connecting pieces 34 are both rotatably connected with the connecting block 35, and the connecting block 35 is located between the two connecting pieces 34.

[0027] The lever mechanism 2 in the embodiment comprises an inner pull rod 21, an outer sleeve 22 and an insulating tube 23, the insulating tube 23 is sleeved outside the outer sleeve 22, the outer sleeve 22 is sleeved outside the inner pull rod 21, one end of the inner pull rod 21 is connected with the connecting block 35, one end of the outer sleeve 22 and the insulating tube 23 is connected with the jaw seat 33, one end of the inner pull rod 21 is provided with a clamping block 25, the connecting block 35 is provided with a clamping groove 36, and the clamping block 25 is located in the clamping groove 36.

[0028] The handle mechanism 1 in the embodiment comprises a front handle 11, a rear handle 12, a rotating wheel 13, a plug 14, a fixing sleeve 15, a connecting seat 16, a nut 17 and a first spring 19. The rear handle 12 is rotatably installed on the front handle 11. The fixing sleeve 15 is fixed on the front handle 11. The plug 14 and the connecting seat 16 are respectively installed on two ends of the fixing sleeve 15. An inner tube of the plug 14 penetrates through the fixing sleeve 15, the connecting seat 16 and the first spring 19. The nut 17 is screwed on the inner tube of the plug 14. Two ends of the first spring 19 respectively abut against the connecting seat 16 and the nut 17. The rotating wheel 13 is fixed with the plug 14. The plug 14 is fixed with the other end of an outer sleeve tube 22.

[0029] The rear handle 12 in the embodiment is provided with a ball groove 18. The other end of an inner pull rod 21 is provided with a ball head 24. The ball head 24 is located in the ball groove 18. The fixing sleeve 15 is provided with a cavity. A second spring 191 and a steel ball 192 are installed in the cavity. Two ends of the second spring 191 respectively abut against the cavity and the steel ball 192. The plug 14 is provided with a recess hole matched with the steel ball 192. The front handle 11 is installed with an electrode 193.

[0030] Specifically, the single-pole grabbing forceps can control the rear handle 12 to rotate on the front handle 11 in use. The rear handle 12 pushes and pulls the inner pull rod 21. The inner pull rod 21 pushes and pulls the connecting block 35, so that the connecting block 35 moves in the forceps seat 33. Since the first forceps head 31 and the second forceps head 32 are rotatably connected with the forceps seat 33, and the first forceps head 31 and the second forceps head 32 are rotatably connected with the connecting block 35 through the connecting piece 34, the first forceps head 31 and the second forceps head 32 can be pushed and pulled when the connecting block 35 moves forward and backward, and the opening and closing of the first forceps head 31 and the second forceps head 32 can be controlled through the connecting piece 34. In use, the rotating wheel 13 can be rotated to adjust the rotating angle of the first forceps head 31 and the second forceps head 32. When the rotating wheel 13 is rotated, the steel ball 192 can be bounced into the recess hole by the second spring 191 to make a sound. The plug 14 and the steel ball 192 are elastically contacted through the first spring 19 in the rotating process of the rotating wheel 13. That is to say, when the rotating wheel 13 is rotated, the rotating wheel 13 and the plug 14 will move along the axis of the outer sleeve tube 22 and be pulled tightly by the first spring 19.

[0031] Furthermore, it needs to explain, the specific embodiment described in this specification, the shape of zero, component, the name taken etc. can be different, the above contents described in this specification are only the example of the structure of the utility model. The equivalent change or simple change made according to the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. The skilled in the art to which the utility model belongs can make various modifications or supplements or adopt similar ways to replace the specific embodiments described, as long as not deviating from the structure of the utility model or beyond the range defined in the claims, should belong to the protection scope of the utility model.

Claims

1. A monopolar grasping forceps, comprising a handle mechanism (1), a rod mechanism (2) and a head mechanism (3), wherein the head mechanism (3) is mounted on one end of the rod mechanism (2), the handle mechanism (1) is mounted on the other end of the rod mechanism (2), and the head mechanism (3) is controlled to open and close by the handle mechanism (1), characterized in that: The clamp head mechanism (3) comprises a first clamp head (31), a second clamp head (32), a clamp seat (33), a connecting piece (34) and a connecting block (35). The first clamp head (31) and the second clamp head (32) are both rotatably mounted on the clamp seat (33). The first clamp head (31) and the second clamp head (32) are respectively rotatably connected to one end of a connecting piece (34). The other ends of the two connecting pieces (34) are both rotatably connected to the connecting block (35).

2. The monopolar grasping forceps according to claim 1, characterized in that: The connecting block (35) is located between the two connecting pieces (34).

3. The monopolar grasping forceps according to claim 1, characterized in that: The clamp rod mechanism (2) includes an inner pull rod (21), an outer sleeve (22) and an insulating tube (23), wherein the insulating tube (23) is sleeved outside the outer sleeve (22), and the outer sleeve (22) is sleeved outside the inner pull rod (21), one end of the inner pull rod (21) is connected to the connecting block (35), and one end of the outer sleeve (22) and the insulating tube (23) is connected to the clamp seat (33).

4. The monopolar grasping forceps according to claim 3, characterized in that: A clamping block (25) is provided at one end of the inner pull rod (21), a clamping slot (36) is provided on the connecting block (35), and the clamping block (25) is located in the clamping slot (36).

5. The monopolar grasping forceps according to claim 3 or 4, characterized in that: The clamp handle mechanism (1) comprises a front handle (11), a rear handle (12), a rotating wheel (13), a plug (14), a fixed sleeve (15), a connecting seat (16), a nut (17) and a first spring (19), wherein the rear handle (12) is rotatably mounted on the front handle (11), the fixed sleeve (15) is fixed on the front handle (11), the plug (14) and the connecting seat (16) are respectively mounted on two ends of the fixing sleeve (15), and the inner tube of the plug (14) penetrates the fixing sleeve (15), the connecting seat (16) and the first spring (19), the nut (17) is screwed on the inner tube of the plug (14), the two ends of the first spring (19) are respectively in contact with the connecting seat (16) and the nut (17), the rotating wheel (13) is fixed to the plug (14), and the plug (14) is fixed to the other end of the outer sleeve (22).

6. The monopolar grasping forceps according to claim 5, characterized in that: A ball groove (18) is provided on the rear handle (12), and a ball head (24) is provided on the other end of the inner pull rod (21), and the ball head (24) is located in the ball groove (18).

7. The monopolar grasping forceps according to claim 5, characterized in that: The fixing sleeve (15) is provided with a cavity, in which a second spring (191) and a steel ball (192) are installed, and two ends of the second spring (191) are respectively in contact with the cavity and the steel ball (192), and the plug (14) is provided with a concave hole that cooperates with the steel ball (192).

8. The monopolar grasping forceps according to claim 5, characterized in that: An electrode (193) is mounted on the front handle (11).

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