CN212438764U

CN212438764U - Laparoscopic surgery pincers with adjustable bend angle

Info

Publication number: CN212438764U
Application number: CN202022194989.8U
Authority: CN
Inventors: 黄超
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-02-02
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a laparoscopic surgery pincers of adjustable bent angle, including a pair of tong arm, pincers body and a pair of pincers handle, the tong arm is equipped with at least one rotation joint, be equipped with the rotation joint regulator on the pincers handle, the rotation joint regulator passes through the angle of acting as go-between regulation rotation joint. The utility model discloses rotatable tong arm can adapt to different pathological position and structure when carrying out the abdominal cavity operation, and the operation passageway is seted up to the minimizing, solves the unable crooked problem that leads to operation passageway opening big of adjusting of current abdominal cavity pincers.

Description

Laparoscopic surgery pincers with adjustable bend angle

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to peritoneoscope lower surgical forceps of adjustable bent angle.

Background

In clinical application, some surgical instruments with large bending angles are often used for separating and clamping tissues, stopping bleeding of blood vessels and the like, and the surgical instruments are widely applied to right-angle separating forceps, tracheal dilating forceps, lateral bending needle holding forceps, vena cava forceps, renal pedicle forceps and the like. The prior apparatus has the following disadvantages in the use process: firstly, in laparoscopic surgery, Trocar with a larger inner diameter is needed to establish a surgical channel for facilitating the entry of surgical instruments, but the too large surgical channel not only can increase the pain of a patient, but also is not beneficial to the postoperative recovery of the patient, and can influence the aesthetic degree after the recovery; secondly, the angle of the current common bending surgical instrument is fixed and can not be changed, so that the operation is sometimes inconvenient in the operation process of the abdominal cavity of a human body, and an operator needs to press surrounding tissues to achieve the optimal angle. Therefore, the surgical instrument which can meet the requirement of randomly adjusting the angle under the laparoscope and can reduce the wound of the surgical channel is particularly important.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects that the prior abdominal cavity forceps need to be established when in abdominal cavity operation and the prior angle is not adjustable, and provides the laparoscopic surgery forceps with adjustable bending angles.

The utility model adopts the following technical scheme:

the utility model provides a laparoscopic surgery pincers of adjustable bent angle which the key lies in: the clamp comprises a pair of clamp arms, a clamp body and a pair of clamp handles, wherein the clamp arms are provided with at least one rotating joint, the clamp handles are provided with rotating joint regulators, and the rotating joint regulators regulate the angles of the rotating joints through pull wires. The effect of this scheme is: rotatable tong arm can adapt to different pathology position and structure when carrying out abdominal cavity operation, and the operation passageway is seted up to the minimizing, solves the unable crooked problem that leads to operation passageway opening big of current abdominal cavity pincers.

Preferably, the forceps arm is provided with 3 rotary joints, a first rotary joint, a second rotary joint and a third rotary joint which are sequentially arranged, and the first rotary joint is arranged close to the forceps body.

Preferably, the first rotary joint, the second rotary joint and the third rotary joint are controlled by separate pull wires respectively;

the first rotary joints on the two forceps arms form a first rotary joint group, and two pull wires corresponding to the first rotary joint group are converged to form a first joint pull wire group;

the second rotary joints on the two forceps arms form a second rotary joint group, and two pull wires corresponding to the second rotary joint group are converged to form a second joint pull wire group;

third rotary joints on the two forceps arms form a third rotary joint group, and two corresponding pull wires of the third rotary joint group are converged to form a third joint pull wire group;

the forceps handle is provided with a first rotary joint adjuster corresponding to the first joint pull wire group;

the forceps handle is provided with a second rotary joint adjuster corresponding to the second joint pull wire group;

and the forceps handle is provided with a third rotary joint regulator corresponding to the third joint pull wire group.

The effect of this scheme is: the three-level rotation of the forceps arms can be beneficial to the operation of each pathological position and structure in the abdominal cavity operation, is beneficial to the operation space of an operating doctor, and does not need to provide a larger operation channel before the operation.

According to the preferable scheme, the clamp body is of a hollow tubular structure, a first rotating shaft is arranged at the position, close to the outer end, of the clamp body, the two clamp arms are rotatably hinged to the first rotating shaft, a second rotating shaft is arranged at the position, close to the inner end, of the clamp body, the two clamp handles are rotatably hinged to the second rotating shaft, a pushing rod axially penetrates through the clamp body, and the opening degree of the clamp arms is adjusted through the pushing rod penetrating through the clamp body. The effect of this scheme is: the operation is facilitated, the opening degree of the forceps arms can be conveniently and rapidly adjusted by a doctor through a flexible mechanical structure, and the time is saved.

Preferably, the outer walls of the first rotating shaft and the second rotating shaft are respectively provided with pull wire through holes which are uniformly distributed and correspond to the first joint pull wire group, the second joint pull wire group and the third joint pull wire group, and the pull wires sequentially penetrate through the first rotating shaft and the second rotating shaft from the clamp arms and then are connected with the rotating joint adjuster. The effect of this scheme is: the pull wires are arranged in order without affecting the operation.

According to the preferable scheme, the two forceps handles are oppositely provided with a pushing rod power-assisted mechanism, the pushing rod power-assisted mechanism comprises two pushing rod strips and a convex spring strip, one ends of the pushing rod strips are rotatably connected with the inner sides of the forceps handles, the other ends of the pushing rod strips are hinged with the end parts of the inner sides of the pushing rod strips, the two ends of the convex spring strip are respectively fixed on the inner sides of the two forceps handles, the pushing rod can be pushed and pulled by holding the two forceps handles, and therefore the opening degree between the two forceps arms is adjusted. The effect of this scheme is: the convex spring strips can save labor, and meanwhile, the operation forceps are convenient to open, thereby being beneficial to the operation of doctors.

As a preferred scheme, the two forceps handles are respectively provided with mutually adaptive locking strips, and the two locking strips are opened through a locking switch. The effect of this scheme is: the locking strip and the locking switch are matched, so that the operation of tissue hemostasis and the like by using the surgical forceps by a doctor can be facilitated, and the arrangement and the opening of the surgical forceps are facilitated.

Preferably, the front ends of the two forceps arms are respectively and oppositely provided with mutually adaptive meshing structures.

Preferably, the forceps handle is provided with a locking piece corresponding to each rotary joint adjuster, and the locking piece is used for fixing the rotation angle of the rotary joint adjuster.

Has the advantages that: the utility model discloses an operation pincers under peritoneoscope of adjustable bent angle can set up the operation passageway of abdominal cavity operation according to different pathological position and structure, minimizing, reduces patient's operation wound to alleviate patient's misery, do benefit to patient postoperative recovery and wound aesthetic measure.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the opened clamp arm 1 of the present invention;

fig. 3 is a schematic diagram of the rotary joint adjuster 5 of the present invention controlling the rotary joint 4;

FIG. 4 is a simplified cross-sectional view of FIG. 2;

FIG. 5 is a schematic view of the engagement of the jawarms 1 and the pull wires;

fig. 6 is a schematic diagram of the cooperation principle between the first joint wire set L41, the second joint wire set L42, the third joint wire set L43, the first rotating shaft 6, the second rotating shaft 7, the first rotating joint adjuster 51, the second rotating joint adjuster 52, and the third rotating joint adjuster 53;

fig. 7 is a schematic structural view of catch piece 13;

FIG. 8 is a schematic view showing the engagement between the rotary joint 4 and a pull wire in embodiment 1;

fig. 9 is a schematic diagram showing the engagement among the first rotary joint 41, the second rotary joint 42, and the third rotary joint 43 in embodiment 1;

FIG. 10 is a schematic view showing the engagement between the rotary joint 4 and a pull wire in embodiment 2;

fig. 11 is a schematic diagram showing the engagement among the first rotary joint 41, the second rotary joint 42, and the third rotary joint 43 in embodiment 2.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings:

as shown in the attached drawings 1-7, the utility model discloses a pair of laparoscopic surgery pincers with adjustable bent angle, which comprises a pair of forceps arms 1, a forceps body 2 and a pair of forceps handles 3, wherein the forceps arms 1 are provided with at least one rotating joint 4, the forceps handles 3 are provided with a rotating joint adjuster 5, and the rotating joint adjuster 5 adjusts the angle of the rotating joint 4 through a pull wire.

The forceps arm 1 is provided with 3 rotating joints 4, a first rotating joint 41, a second rotating joint 42 and a third rotating joint 43 which are respectively arranged in sequence, and the first rotating joint 41 is arranged close to the forceps body 2.

The first rotary joint 41, the second rotary joint 42 and the third rotary joint 43 are controlled by separate pull wires respectively;

the first rotary joints 41 on the two forceps arms 1 form a first rotary joint group, and two corresponding pull wires of the first rotary joint group are converged to form a first joint pull wire group L41;

the second rotary joints 42 on the two forceps arms 1 form a second rotary joint group, and two corresponding pull wires of the second rotary joint group are converged to form a second joint pull wire group L42;

the third rotary joints 43 on the two forceps arms 1 form a third rotary joint group, and two corresponding pull wires of the third rotary joint group are converged to form a third joint pull wire group L43;

the forceps handle 3 is provided with a first rotary joint adjuster 51 corresponding to the first joint pull line group L41;

the forceps handle 3 is provided with a second rotary joint adjuster 52 corresponding to the second joint pull line group L42;

the forceps handle 3 is provided with a third revolute joint adjuster 53 corresponding to the third joint wire group L43.

The pliers body 2 is hollow tubular structure, and the pliers body 2 is close to the outer end and is equipped with first axis of rotation 6, and two tong arms 1 rotate and articulate on first axis of rotation 6, and the pliers body 2 is close to the inner and is equipped with second axis of rotation 7, and two tong handles 3 rotate and articulate on second axis of rotation 7, and the axial runs through is equipped with catch bar 6 in the pliers body 2, and the opening of tong arm 1 is adjusted through catch bar 6 that runs through pliers body 2 to pincers handle 3.

The outer walls of the first rotating shaft 6 and the second rotating shaft 7 are respectively provided with pull wire through holes which are uniformly distributed and correspond to the first joint pull wire group L41, the second joint pull wire group L42 and the third joint pull wire group L43, and pull wires sequentially penetrate through the first rotating shaft 6 and the second rotating shaft 7 from the forceps arm 1 and then are connected with the rotating joint adjuster 5.

In order to save more labor and facilitate opening, the two forceps handles 3 are oppositely provided with a push rod power-assisted mechanism, the push rod power-assisted mechanism comprises two push rod strips 8 and a convex spring strip 9, one ends of the push rod strips 8 are rotatably connected with the inner sides of the forceps handles 3, the other ends of the push rod strips are hinged with the end parts of the inner sides of the push rods 6, the two ends of the convex spring strip 9 are respectively fixed on the inner sides of the two forceps handles 3, the push rods 6 can be pushed and pulled by holding the two forceps handles 3 together, and therefore the opening degree between the two forceps arms 1. In addition, the two forceps handles 3 are respectively provided with mutually adaptive locking strips 10, and the two locking strips 10 are opened through a locking switch 11.

In addition, for convenience of use, the front ends of the two forceps arms 1 are respectively and oppositely provided with meshing structures which are mutually adaptive, and the meshing structures can adopt various forms, such as frosted shapes, sawtoothed shapes and the like, so as to meet the requirements of various surgical forms; a locking fastener 13 is respectively arranged on the forceps handle 3 corresponding to each rotary joint adjuster 5, and the locking fastener 13 is used for fixing the rotary angle of the rotary joint adjuster 5; simultaneously should can adapt to the supporting apparatus of operation (for example surgical robot) afterwards, this scheme is under the unchangeable condition of tong arm 1, and the pincers body can carry out corresponding supporting structural change with the pincers handle, and the implementation scheme after the aforesaid changes again belongs to this patent.

In the scheme, two preferable embodiments of the clamp arm 1 are as follows:

embodiment 1 as shown in fig. 8 and 9, a spring fixing groove is formed in a rotary joint 4 of a clamp arm 1, a tabletting spring is installed in the spring fixing groove, a pull wire is connected with the tabletting spring, the clamp arm 1 is in a bending state in a normal state, and the clamp arm 1 is controlled to be gradually stretched through the pull wire, so that the aim of controlling the clamp arm 1 to adjust the rotary angle of the rotary joint 4 is achieved, and the state of controlling the clamp arm 1 is achieved.

Example 2: as shown in the attached figures 10 and 11, the pulling wire pulls the compression spring arranged in the jawarm 1 to adjust the rotation angle of the rotary joint 4, so as to control the bending angle of each rotary joint 4 of the jawarm 1.

The utility model discloses in the use, at first need establish the operation passageway in patient's belly with the help of trocar, the passageway is established the back, at first rotates carousel 5, drives the beneath gear revolve through carousel 5. The number of turns of acting as go-between through the roll-up of carousel 5 realizes controlling any joint and bends to open, realizes through carousel 5 that the revolute joint 4 of tong arm 1 rotates to the horizontality, through above-mentioned operation passageway to operation position, gets into operation position back, rotates carousel 5 once more, relaxs the automatic deformation of spring that revolute joint 4, and the spring through revolute joint 4 promotes revolute joint 4 and rotates, thereby realizes the rotation of joint 23 and realizes the crookedness of tong arm 1 and change through the rotation of joint pushing arm 24. After the operation is completed, the pull wire is also pulled tightly by the rotation of the rotary disc 5, so that the reverse movement is realized.

Realize that abdominal cavity pincers can change the crookedness at will in the use through above-mentioned structure to the realization reduces the internal diameter of operation passageway, reduces patient's misery, can satisfy medical staff to the demand of different angles through the aforesaid changes in addition. In addition, the medical operation pincers and the hemostatic forceps and other forceps instruments can adopt the rotatable forceps arms of the scheme for facilitating medical care operation, so that the operation and the control are more convenient, the medical care operation time can be saved, and the pain of a patient can be relieved to a certain extent.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a laparoscopic surgery pincers of adjustable bent angle which characterized in that: the novel multifunctional pliers comprise a pair of pliers arms (1), pliers bodies (2) and a pair of pliers handles (3), wherein at least one rotating joint (4) is arranged on each pliers arm (1), a rotating joint regulator (5) is arranged on each pliers handle (3), and the rotating joint regulator (5) regulates the angle of each rotating joint (4) through a pull wire.

2. The adjustable bend angle laparoscopic forceps of claim 1, wherein: the forceps are characterized in that the forceps arm (1) is provided with 3 rotating joints (4) which respectively comprise a first rotating joint (41), a second rotating joint (42) and a third rotating joint (43) which are sequentially arranged, and the first rotating joint (41) is close to the forceps body (2).

3. The adjustable bend angle laparoscopic forceps of claim 2, wherein: the first rotary joint (41), the second rotary joint (42) and the third rotary joint (43) are controlled by independent pull wires respectively;

the first rotating joints (41) on the two forceps arms (1) form a first rotating joint group, and two pull wires corresponding to the first rotating joint group are converged to form a first joint pull wire group (L41);

the second rotary joints (42) on the two forceps arms (1) form a second rotary joint group, and two pull wires corresponding to the second rotary joint group are converged to form a second joint pull wire group (L42);

third rotary joints (43) on the two forceps arms (1) form a third rotary joint group, and two corresponding pull wires are converged to form a third joint pull wire group (L43);

the forceps handle (3) is provided with a first rotary joint regulator (51) corresponding to the first joint pull line group (L41);

the forceps handle (3) is provided with a second rotary joint regulator (52) corresponding to the second joint pull line group (L42);

and the forceps handle (3) is provided with a third rotary joint regulator (53) corresponding to the third joint pull wire group (L43).

4. The adjustable bend angle laparoscopic forceps of claim 3, wherein: the utility model discloses a pincers, including pincers body (2), pincers handle (3) rotate and articulate on second axis of rotation (7), the pincers body (2) are hollow tubular structure, pincers body (2) are close to the outer end and are equipped with first axis of rotation (6), two pincers arm (1) rotate and articulate on first axis of rotation (6), pincers body (2) are close to the inner and are equipped with second axis of rotation (7), two pincers handle (3) are adjusted through catch bar (12) that run through pincers body (2) the aperture of pincers arm (1).

5. The adjustable bend angle laparoscopic forceps of claim 4, wherein: the outer walls of the first rotating shaft (6) and the second rotating shaft (7) are respectively provided with stay wire through holes which are uniformly distributed corresponding to the first joint stay wire group (L41), the second joint stay wire group (L42) and the third joint stay wire group (L43), and stay wires sequentially penetrate through the first rotating shaft (6) and the second rotating shaft (7) from the forceps arm (1) and then are connected with the rotating joint regulator (5).

6. An adjustable bend angle laparoscopic forceps as claimed in claim 1 or 3, wherein: two the pincers handle (3) are equipped with catch bar assist drive device relatively, catch bar assist drive device includes two ejector rod strips (8) and convex spring strip (9), ejector rod strip (8) one end with pincers handle (3) inboard is rotated and is connected, the other end with catch bar (12) medial extremity is articulated, convex spring strip (9) both ends are fixed respectively two pincers handle (3) are inboard, through holding two pincers handle (3) can the push-and-pull catch bar (12), thereby adjust two aperture between pincers arm (1).

7. The adjustable bend angle laparoscopic forceps of claim 1, wherein: the two clamp handles (3) are respectively provided with mutually adaptive locking strips (10), and the two locking strips (10) are opened through a locking switch (11).

8. The adjustable bend angle laparoscopic forceps of claim 1, wherein: the front ends of the two forceps arms (1) are respectively and oppositely provided with mutually adaptive meshing structures.

9. The adjustable bend angle laparoscopic forceps of claim 1, wherein: the clamp handle (3) is provided with a locking piece (13) corresponding to each rotary joint adjuster (5), and the locking piece (13) is used for fixing the rotary angle of the rotary joint adjuster (5).