CN115778494A - A chamber mirror clamp for stomach wall operation - Google Patents

Abstract

The invention discloses an endoscopic clamp for abdominal wall surgery, which comprises a clamp handle, a clamp rod and a clamp head, wherein the clamp rod comprises a fixed rod with one end connected with the clamp handle, a movable rod with one end hinged with the other end of the fixed rod and an elastic piece for driving the movable rod to keep an included angle trend relative to the fixed rod, the clamp handle and the movable rod are arranged on two sides of the fixed rod, and the clamp head is arranged at the other end of the movable rod. The invention can ensure that the forceps handle is convenient to hold by hands when in operation, and the moving rod upwards supports the forceps head to carry out operation clamping operation on the abdominal wall above the abdominal cavity. Thereby the operation doctor can keep the posture of normal handheld chamber mirror clamp, avoids the big rotatory waste time and energy of angle of wrist, has further also reduced the operation risk.

Description

A chamber mirror clamp for stomach wall operation

Technical Field

The invention relates to the field of medical instruments, in particular to an endoscopic clamp for abdominal wall surgery.

Background

At present, in the process of laparoscopic minimally invasive surgery, if the intestines such as the stomach and the intestine need to be operated under a laparoscope, the force direction of a surgeon is from top to bottom, the force direction accords with the motion direction and the anatomical function of the upper limb, and the operation is easy, which is shown in the attached drawing 1. However, if the surgical site is on the abdominal wall 10, the wrist needs to be rotated by a large angle from bottom to top, as if the surgical site is operated on the ceiling, the surgeon is highly stressed, very strenuous, easily damages the joints, and is difficult to operate, thereby easily bringing risks and accidents to the surgical procedure.

Chinese patent CN113616278B discloses a turnable endoscopic clamp, which comprises a clamp handle, a clamp rod and a clamp head, wherein the clamp handle and the clamp head are arranged at two ends of the clamp rod, and the clamp handle is connected with the clamp rod in a swinging manner. The swing setting of the pincers handle that can realize the chamber mirror clamp and the pincers pole to the turning can be realized for the pincers handle to the pincers pole, thereby can swing in a flexible way and give way partial external operating space when operation doctor operates the chamber mirror clamp, but above-mentioned problem can't be solved equally.

Disclosure of Invention

The invention aims to provide an endoscopic clamp for abdominal wall surgery, thereby solving the problems.

In order to achieve the purpose, the invention discloses an endoscopic clamp for abdominal wall surgery, which comprises a clamp handle, a clamp rod and a clamp head, wherein the clamp rod comprises a fixed rod, one end of the fixed rod is connected with the clamp handle, a movable rod and an elastic piece, the other end of the fixed rod is hinged with the movable rod, the elastic piece is used for driving the movable rod to keep an included angle trend relative to the fixed rod, the clamp handle and the movable rod are arranged on two sides of the fixed rod, and the clamp head is arranged at the other end of the movable rod.

Furthermore, the pincers handle is including the fixed handle of mutual articulated and moving the handle, decide the pole and move and pass a driving rope in the pole, decide the pole and install decide on the handle, the one end of driving rope with the actuating lever of binding clip is connected, the other end with the drive end of moving the handle is connected.

Further, the other end of deciding the pole with the one end of moving the pole is articulated through a pivot, the pivot rigid coupling is in decide on the pole, the center of pivot is provided with the driving rope clearing hole, the both ends of driving rope clearing hole are provided with the fan-shaped interference hole of preventing of pivot that interferes when being used for preventing the driving rope beat.

Furthermore, the one end of deciding the pole is provided with the U-shaped groove, the one end of moving the pole be provided with the pin joint portion of pivot pin joint, pin joint portion sets up the U-shaped inslot, pin joint portion is provided with the fan-shaped interference hole of preventing of pin joint portion that interferes when being used for preventing the driving rope beat.

Furthermore, the elastic part is a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixed on the moving rod, and the other end of the torsion spring is fixed on the fixed rod.

Furthermore, the middle part of the torsion spring is sunken to form a U-shaped clamp, the U-shaped clamp is clamped on the pivoting part, and two ends of the torsion spring are inserted and fixed on the side wall of the U-shaped groove.

Furthermore, the elastic piece is a bent elastic piece, one end of the bent elastic piece is fixed at the other end of the fixed rod, and the other end of the bent elastic piece is fixed at one end of the moving rod.

Furthermore, the fixed rod and the forceps handle are rotatably connected with the forceps handle in a lockable and fixed mode.

Further, still include the locking swivel nut, the one end of pincers handle is provided with the locking head of outband screw thread, the one end of deciding the handle is provided with the locking flange, be provided with on the locking swivel nut and be used for compressing tightly the clamping ring of locking flange, the clamping ring with decide the handle slip joint, the locking swivel nut cover is established outside the locking flange and with locking head threaded connection.

Furthermore, the quantity that moves the pole is two at least, move and articulate each other and pass through between the pole the elastic component keeps the contained angle trend, be provided with the arch and the recess of mutual gomphosis on the face that locking head and locking flange are relative, arch and recess along the circumference equipartition of tong lever.

Compared with the prior art, the invention has the advantages that:

according to the invention, through the elastic action of the elastic piece, when the forceps rod enters the surgical cannula, the movable rod can be aligned to the direction parallel to the fixed rod under the pressure of the surgical cannula, so that the forceps rod can conveniently enter the abdominal cavity, and after the forceps rod enters the abdominal cavity, the movable rod can keep the upward tilting posture under the driving of the elastic piece due to the disappearance of the pressure of the surgical cannula. Therefore, the forceps can be conveniently held by the handle at the lower part in the operation, and the movable rod upwards supports the forceps head to carry out operation clamping operation on the abdominal wall above the abdominal cavity. Thereby the operation doctor can keep the posture of normal handheld chamber mirror clamp, avoids the big rotatory waste time and energy of angle of wrist, has further also reduced the operation risk.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the operation of a prior art laparoscopic forceps;

FIG. 2 is a schematic front view of a disclosed laparoscopic forceps for abdominal wall surgery, in accordance with an embodiment of the present invention;

FIG. 3 is an enlarged schematic axial view at A of FIG. 2;

FIG. 4 is an enlarged view of FIG. 2 at B;

FIG. 5 is a schematic structural diagram of a torsion spring according to an embodiment of the present invention;

FIG. 6 is a schematic axial view of one end of the moving rod according to one embodiment of the present disclosure;

FIG. 7 is a schematic axial view of the other end of the stator bar according to one disclosed embodiment of the invention;

FIG. 8 is a schematic cross-sectional view of a shaft according to one disclosed embodiment of the invention;

FIG. 9 is a schematic view of the engagement of the fixed rod, the moving rod and the bent resilient piece disclosed in the second embodiment of the present invention;

fig. 10 is a schematic diagram of the cooperation of the fixed rod, the moving rod and the bent elastic sheet disclosed by the third embodiment of the invention.

Illustration of the drawings:

1. a forceps handle; 11. fixing a handle; 111. a locking flange; 12. a movable handle; 121. a driving end; 122. a handheld end; 13. a locking head; 2. a clamp lever; 21. fixing a rod; 211. a U-shaped groove; 22. a moving bar; 221. a pivot part; 222. the pivoting part is a fan-shaped interference preventing hole; 3. a binding clip; 31. a drive rod; 4. a drive rope; 5. a rotating shaft; 51. the driving rope passes through the hole; 52. a fan-shaped interference preventing hole of the rotating shaft; 6. a torsion spring; 61. a U-shaped card; 7. bending the elastic sheet; 8. locking the threaded sleeve; 81. pressing a ring; 82. a handle;

10. the abdominal wall.

Detailed Description

Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

The first embodiment is as follows:

as shown in fig. 2-8, the invention discloses an endoscopic forceps for abdominal wall surgery, which comprises a forceps handle 1, a forceps rod 2 and a forceps head 3, wherein the forceps rod 2 comprises a fixed rod 21 with one end connected with the forceps handle 1, a movable rod 22 with one end hinged with the other end of the fixed rod 21 and an elastic member for driving the movable rod 22 to keep an included angle trend relative to the fixed rod 21, and the elastic member can be set so as to ensure that the angle position between the movable rod 22 and the fixed rod 21 is variable, such as 120 degrees, 90 degrees and 60 degrees. The forceps handles 1 and the moving lever 22 are disposed on both sides of the fixed lever 21 so that the forceps handles 1 are on the lower side and the moving lever 22 extends in the upward direction. The tong head 3 is arranged at the other end of the moving rod 22, and particularly, the structure of the tong handle 1 and the tong head 3 and the driving mode thereof are the same as those in the patent CN 113616278B. Through the elastic action of elastic component, when the forceps lever 2 got into the operation sleeve pipe, move pole 22 and receive operation sleeve pipe pressure and can align to the direction parallel with fixed pole 21 to be convenient for get into the abdominal cavity, get into the abdominal cavity after, because operation sleeve pipe pressure disappears, move pole 22 and can keep the gesture of upwarping under the drive of elastic component. Therefore, the forceps handle 1 can be conveniently held at the lower part in the operation, and the moving rod 22 supports the forceps head 3 upwards to carry out operation clamping operation on the abdominal wall 10 above the abdominal cavity. Thereby the operation doctor can keep the posture of normal handheld chamber mirror clamp, avoids the big rotatory waste time and energy of angle of wrist, has further also reduced the operation risk.

In this embodiment, the forceps handle 1 includes a fixed handle 11 and a movable handle 12 hinged to each other, the movable handle 12 is driven by a thumb, the other four fingers hold the fixed handle 11, a driving rope 4 passes through the fixed rod 21 and the movable rod 22, the driving rope 4 is a flexible steel wire rope, the fixed rod 21 is installed on the fixed handle 11, one end of the driving rope 4 is connected with the driving rod 31 of the forceps head 3, and the other end is connected with the driving end 121 of the movable handle 12, when the thumb drives the handheld end 122 at the lower end of the movable handle 12 and the handheld end 122 to swing close to the fixed handle 11, the upper end of the movable handle 12 pulls the driving rope 4 backwards, so as to drive the driving rod 31 of the forceps head 3 to move backwards, and the forceps head 3 is closed for clamping operation.

In this embodiment, the other end of the fixed rod 21 and one end of the movable rod 22 are hinged by a rotating shaft 5, the rotating shaft 5 is fixed on the fixed rod 21, a driving rope passing hole 51 is provided in the center of the rotating shaft 5, the length of the driving rope passing hole 51 is as short as possible, the inner diameter of the driving rope passing hole 51 is slightly larger than the outer diameter of the driving rope 4, that is, the middle of the driving rope 4 passes through the driving rope passing hole 51, the two ends pass through the fixed rod 21 and the movable rod 22 respectively, the two ends of the driving rope passing hole 51 are provided with a rotating shaft fan-shaped interference preventing hole 52 for preventing the interference when the driving rope 4 swings, the rotating shaft fan-shaped interference preventing hole 52 is provided along the rotating direction of the movable rod 22, (if only the driving rope passing hole 51 is provided in a long strip shape, the end of the driving rope passing hole 51 will pull the driving rope 4 to drive the binding clip 3 when the movable rod 22 rotates).

In this embodiment, one end of the fixed rod 21 is provided with a U-shaped groove 211, one end of the moving rod 22 is provided with a pivoting portion 221 pivoted to the rotating shaft 5, the pivoting portions 221 are disposed in the U-shaped groove 211 and matched with each other, the pivoting portion 221 is provided with a pivoting portion sector interference preventing hole 222 for preventing interference when the driving rope 4 swings eccentrically, the pivoting portion sector interference preventing hole 222 is disposed along the pivoting direction of the moving rod 22, and the interference preventing principle is the same as that of the rotating shaft sector interference preventing hole 52.

In this embodiment, in order to realize the elastic driving of the moving rod 22, the elastic member is a torsion spring 6, the torsion spring 6 is sleeved on the rotating shaft 5, one end of the torsion spring 6 is fixed on the moving rod 22, and the other end is fixed on the fixed rod 21. Specifically, the middle of the torsion spring 6 is recessed to form a U-shaped clip 61, the U-shaped clip 61 is clipped on the pivoting part 221, and two ends of the torsion spring 6 are inserted and fixed on the side wall of the U-shaped groove 211. Through this kind of mode of setting, the elastic component can set up in the external diameter scope of pincers pole 2 to be convenient for convenient operation sleeve pipe of inserting and taking out.

In the present embodiment, in order to adjust the left and right deflection angles of the fixed rod 21 relative to the forceps handles 1, the fixed rod 21 and the forceps handles 1 are connected with each other in a lockable manner and rotatably with respect to the forceps handles 1, considering that the actual operation space of the abdominal wall 10 may be in the left abdominal wall or the right abdominal wall. Specifically, the clamp comprises a locking threaded sleeve 8, a locking head 13 with external threads is arranged at one end of a clamp handle 1, a locking flange 111 is arranged at one end of a fixed handle 11, so that one end of the fixed handle is of a T-shaped structure, a pressing ring 81 used for pressing the locking flange 111 is arranged on the locking threaded sleeve 8, the pressing ring 81 is connected with the fixed handle 11 in a sliding mode, the locking threaded sleeve 8 is sleeved outside the locking flange 111, and the internal threads of the locking threaded sleeve 8 are in threaded connection with the external threads of the locking head 13. The handles 82 are arranged on both sides of the locking screw sleeve 8, so that labor is saved by utilizing the lever principle. Furthermore, the opposite surfaces of the locking head 13 and the locking flange 111 are provided with mutually embedded protrusions and grooves, the protrusions and the grooves can also adopt a tooth-and-tooth slot matching mode similar to gear meshing, and the protrusions and the grooves are uniformly distributed along the circumferential direction of the clamp rod 2. Therefore, after locking, the protrusion and the groove can be locked in a matched mode, the locking head 13 and the locking flange 111 can be firmly connected, and circumferential movement is avoided.

Example two:

as shown in fig. 9, in this embodiment, the main structure of the endoscope clamp is the same as that of the first embodiment, except that the elastic member is a bent elastic sheet 7, the whole is in a V shape, the bent elastic sheet 7 is in a thin-wall spring steel structure, two ends of the bent elastic sheet 7 are in an arc structure attached to the clamp rod 2, one end of the bent elastic sheet 7 is fixed to the other end of the fixed rod 21, and the other end of the bent elastic sheet 7 is fixed to one end of the moving rod 22, and the fixed connection manner can be achieved by riveting, bonding or screwing. The arrangement structure and installation of the elastic piece are relatively simple. Meanwhile, it is convenient to increase the number of the moving rods 22, but since they are provided on the outer side wall of the forceps lever 2, there is a possibility that the scraping occurs with the surgical cannula, and a little attention is required to go in and out of the surgical cannula. Or require an appropriate increase in the inner diameter of the surgical cannula.

Example three:

as shown in fig. 10, in this embodiment, the main structure of the endoscopic clamp is substantially the same as that of the first and second embodiments, and similarly, the elastic member may be a bent elastic piece 7 or a torsion spring 6. The difference is that the number of the moving rods 22 is two or more, and the moving rods are hinged with each other and maintain a fixed angle through an elastic member, and the number of the moving rods is two in this embodiment. Therefore, the forceps rod 2 has more joints and is more flexible, the forceps head 3 can reach any position of the abdominal wall, the flexibility of the operation is improved, the operation range is expanded, and even as shown in the embodiment, the forceps head 3 can extend towards the back of the forceps rod 2 to form a U-shaped bending mode.

The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a laparoscopic forceps for abdominal wall operation, includes pincers handle (1), claw beam (2) and binding clip (3), its characterized in that, claw beam (2) include one end with decide pole (21), one end that pincers handle (1) is connected with decide pole (22) and be used for the drive of the other end articulated of pole (21) move pole (22) and keep the elastic component of contained angle trend relatively deciding pole (21), pincers handle (1) and move pole (22) and set up the both sides of deciding pole (21), install binding clip (3) move the other end of pole (22).

2. The laparoscopic forceps for abdominal wall operations as claimed in claim 1, wherein the forceps handle (1) comprises a fixed handle (11) and a movable handle (12) hinged to each other, a driving rope (4) passes through the fixed rod (21) and the movable rod (22), the fixed rod is mounted on the fixed handle (11), one end of the driving rope (4) is connected with the driving rod (31) of the forceps head (3), and the other end of the driving rope is connected with the driving end (121) of the movable handle (12).

3. The laparoscopic forceps for abdominal wall surgery as claimed in claim 2, wherein the other end of the fixed rod (21) and one end of the moving rod (22) are hinged through a rotating shaft (5), the rotating shaft (5) is fixedly connected to the fixed rod (21), a driving rope passing hole (51) is formed in the center of the rotating shaft (5), and rotating shaft sector interference preventing holes (52) for preventing interference when the driving rope (4) deflects are formed in the two ends of the driving rope passing hole (51).

4. The endoscopic forceps for abdominal wall surgery as claimed in claim 3, wherein one end of the fixed rod (21) is provided with a U-shaped groove (211), one end of the movable rod (22) is provided with a pivoting part (221) pivoted with the rotating shaft (1), the pivoting part (221) is arranged in the U-shaped groove (211), and the pivoting part (211) is provided with a sector interference preventing hole (222) of the pivoting part for preventing interference when the driving rope (4) swings.

5. Endoscopic forceps for abdominal wall surgery as claimed in claim 4, characterized in that the elastic member is a torsion spring (6), the torsion spring (6) is sleeved on the rotating shaft (1), one end of the torsion spring (6) is fixed on the moving rod (22), and the other end is fixed on the fixed rod (21).

6. The endoscopic forceps for abdominal wall surgery as claimed in claim 6, wherein the torsion spring (6) is recessed in the middle to form a U-shaped clip (61), the U-shaped clip (61) is clipped on the pivoting portion (211), and two ends of the torsion spring (6) are inserted and fixed on the side wall of the U-shaped groove (211).

7. An endoscopic forceps for abdominal wall operation as claimed in any of claims 1-4, characterized in that the elastic member is a bending spring (7), one end of the bending spring (7) is fixed on the other end of the fixed rod (21) and the other end is fixed on one end of the moving rod (22).

8. An endoscopic forceps for abdominal wall surgery as claimed in any one of claims 1 to 4, characterized in that the fixed rod (21) is connected with the forceps handle (1) in a lockable manner in a rotatable manner with the forceps handle (1).

9. The endoscopic forceps for abdominal wall surgery as claimed in claim 8, further comprising a locking screw sleeve (8), wherein a locking head (13) with external threads is arranged at one end of the forceps handle (1), a locking flange (111) is arranged at one end of the fixed handle (11), a pressing ring (81) for pressing the locking flange (111) is arranged on the locking screw sleeve (8), the pressing ring (81) is in sliding connection with the fixed handle (11), and the locking screw sleeve (8) is sleeved outside the locking flange (111) and in threaded connection with the locking head (8).

10. The laparoscopic forceps for abdominal wall surgery as claimed in claim 8, wherein the number of the moving rods (22) is at least two, the moving rods (22) are hinged to each other and maintain the inclination of included angle through the elastic piece, and the opposite surfaces of the locking head (13) and the locking flange (111) are provided with mutually embedded bulges and grooves which are uniformly distributed along the circumferential direction of the forceps rod (2).

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