CN217430075U

CN217430075U - Novel laparoscope needle holder with needle adjustable in head end sliding manner

Info

Publication number: CN217430075U
Application number: CN202220329152.6U
Authority: CN
Inventors: 范傲宇; 李云鹏; 张云艳; 陈伟
Original assignee: Zhongshan Hospital Fudan University
Current assignee: Zhongshan Hospital Fudan University
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-09-16
Anticipated expiration: 2032-02-18

Abstract

The utility model relates to a novel laparoscope needle holder with a needle-adjustable head end in a sliding way, which comprises a movable tong head component, a hollow sleeve, a gear component and a clamping structure; the movable tong head component is used as one of a pair of tong head components and comprises a connecting rod, the tail end of the connecting rod is connected with one end of a spring, and the other end of the spring is fixed in the hollow sleeve; a section of sawtooth structure is arranged on the connecting rod; the gear assembly is fixed on the hollow sleeve and is meshed with the sawtooth structure; the clamping structure is also fixed on the hollow sleeve, and a controllable clamping tooth for unidirectionally locking the gear assembly is arranged on the clamping structure. The utility model discloses the accessible is controlled the gear assembly and is rotated the backshank when the centre gripping suture needle, and the position of direct adjustment needle need not use other apparatus to assist.

Description

Novel laparoscope needle holder with needle adjustable in head end sliding manner

Technical Field

The utility model relates to a peritoneoscope needle holder especially relates to a novel peritoneoscope needle holder of needle is transferred to head end slidable.

Background

Today, endoscopic techniques are widely used in almost all surgical fields, such as general surgery, urology surgery, and thoracic surgery, as an important implementation of minimally invasive surgery. The endoscopic equipment consists of 5 basic systems, wherein, an endoscopic surgical instrument needle holder is used for holding and suturing a needle under an endoscope, but the existing laparoscopic needle holder only has a simple clamping function, cannot directly adjust the angle of the suture needle, and needs the assistance of instruments such as tissue forceps and the like. This procedure is inconvenient to operate and extends the operative time and the learning curve of the doctor to some extent.

Disclosure of Invention

The utility model aims at providing a novel peritoneoscope needle holder of needle is transferred to head end slidable, can't direct adjustment when solving current chamber mirror needle holder centre gripping suture needle sew up the weak point of needle angle, can rotate the suture needle through adjusting needle holder head, and then can direct adjustment suture needle angle, need not other apparatus and supplementary, simplified the needle process of holding for the operation progress.

The utility model adopts the following technical proposal:

a novel needle holder of a laparoscope capable of adjusting needles in a sliding way comprises a movable tong head component 1, a hollow sleeve 2, a gear component 3 and a clamping structure 4; the movable tong head component 1 serves as one of a pair of tong head components and comprises a connecting rod, the tail end of the connecting rod is connected with one end of a spring 103, and the other end of the spring 103 is fixed in the hollow sleeve 2; a section of sawtooth structure is arranged on the connecting rod; the gear assembly 3 is fixed on the hollow casing 2 and is meshed with the sawtooth structure; the clamping structure 4 is also fixed on the hollow sleeve 2, and is provided with a controllable clamping tooth for unidirectionally locking the gear assembly 3.

Preferably, a sliding groove 201 is arranged on the hollow sleeve 2, and a sliding block 104 which is limited in the sliding groove 201 and can slide along the length direction of the hollow sleeve is arranged on the connecting rod.

Furthermore, the handle structure further comprises a pair of handles, wherein

corresponding sawtooth strips

11 and 12 are arranged on the pair of handles, and the sawtooth strips are distributed in a two-section mode.

Preferably, the other jaw assembly of the jaw members comprises a pull rod 5, and the end of the pull rod 5 is connected with one end of a pair of connecting rods 6 and 7, and the other end of the connecting rod is hinged with the handle.

Further, the front end of the pull rod 5 is hinged with the hollow sleeve 2 through a hinge 501.

Preferably, a fixing rod 202 is arranged in the hollow sleeve 2, and the other end of the spring is fixedly connected with the fixing rod 202.

The beneficial effects of the utility model reside in that: the needle tail can be rotated by controlling the gear assembly when the suture needle is clamped, the position of the needle can be directly adjusted, and other instruments do not need to be used for assistance.

Drawings

Fig. 1 is an overall schematic view of the novel laparoscope needle holder with the slidable needle adjustment of the present invention.

Fig. 2 is a partially enlarged view of fig. 1.

In the figure, 1, a movable tong head component, 2, a hollow sleeve, 3, a gear component, 4, a clamping component, 5, a pull rod, 6, a connecting rod, 7, a connecting rod, 8, a left handle, 9, a right handle, 11, a sawtooth strip, 12, a sawtooth strip, 13, a left tong head, 14, a seat body, 15, a suture needle, 201, a sliding groove, 401, a spring shaft, 501, a hinge, 601, a hinge and 701.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

When the existing laparoscope needle holder is used for clamping the suture needle, other instruments such as tissue forceps and the like are needed to continuously adjust the angle of the suture needle, and then the tissue can be successfully sutured. In the embodiment, the forceps head capable of moving back and forth is used, the needle tail can be rotated when the suture needle is clamped, the direction of the needle is directly adjusted, and other instruments are not needed for assistance.

Referring to fig. 1-2, 1 is a right jaw assembly comprising a jaw, a connecting rod, a spring 103, and a slider 104 fixed on the connecting rod, wherein the connecting rod has a saw-tooth structure at its end, as shown in fig. 2.

With continued reference to fig. 1-2, 2 is a hollow sleeve, the wall of which is provided with a sliding slot 201, and the sliding block 104 can slide back and forth in the sliding slot 201. 3 be the gear assembly, its gear shaft is fixed on the pipe wall, 4 are the screens structure, fix on the pipe wall through spring shaft 401, and the rear end has the tooth can block on gear 3, presses 4 front ends, and the rear end is lifted up and can be released gear 3, loosens the rear end and falls and block gear 3. The front end of the spring 103 is connected to the connecting rod 102, and the rear end is connected to the fixing rod 202.

The fixation rod 202 is fixed inside the vessel wall.

5 is a pull rod, 501 is a hinge. Connecting rods 6 and 7, a left handle 8, a right handle 9 and

hinges

801 and 901. 11, 12 are the sawtooth racks fixed on left and right handles, 11, 12 sawtooth racks are respectively provided with two sections of sawtooth structures, and a section of toothless section is arranged between the two sections of sawtooth structures. 13 is a left forceps head, 14 is a seat body.

The right tong head is clamped in the sliding groove 201 through the slider 104 and can move back and forth, a gear shaft of the gear assembly 3 is fixed on the pipe wall of the hollow casing 2, the clamping assembly 4 is also fixed on the pipe wall through the spring shaft 401, and the rear end of the clamping assembly 4 is provided with teeth which can be clamped on the gear 3.

The front end of the clamping component 4 is pressed, the rear end is lifted up to release the gear 3, and the rear end falls down to clamp the gear 3 after releasing. Preferably, the detent assembly 4 can be designed as a one-way stop, i.e. only restricts the counterclockwise rotation of the gear 3, but not the clockwise rotation of the gear 3.

The front end of the spring 103 is connected with the connecting rod, the rear end is connected with the fixed rod 202, and the fixed rod 202 is fixed on the inner side of the pipe wall. The right handle 8 is fixed on the seat body 14 through a hinge 801, the right handle 9 is fixed on the seat body 14 through a hinge 901, the upper end of the connecting rod 6 is connected with the right handle 9 through a hinge 601, and the lower end is connected with the pull rod 5 through a hinge 501.

The lower end of the connecting rod 7 is connected with the left handle 8 through a hinge 701, the lower end of the connecting rod is connected with the pull rod 5 through a hinge 501, the pull rod 5 is fixed on the pipe wall 2 through the hinge 501, and the front end of the connecting rod is connected with the left tong head 13.

When in use: the left and right handles 8 and 9 are held, the pull rod 5 is driven to move backwards through the connecting rods 6 and 7, and then the left tong head 13 is closed upwards. Two sections of sawtooth structures are arranged on the

sawtooth strips

11 and 12, along with the occlusion of the first section of the sawtooth structures of the

sawtooth strips

11 and 12, the left and right forceps heads 8 and 9 slightly close to clamp the suture needle 15, then the gear 3 rolls backwards, the sliding block 104 is driven by the connecting rod to slide forwards in the sliding groove 201, the right forceps head 101 moves forwards relative to the left forceps head 13, and then the suture needle 15 is twisted to rotate forwards along the tail shaft thereof, so that the position of the suture needle 15 is directly adjusted, in the process, the

sawtooth strips

11 and 12 are just positioned at the parts without the sawtooth strip sections, and the resistance can be reduced.

At the moment, the gear 3 is loosened, the gear 3 is fixed by the clamping device 4, and the left and right forceps heads 8 and 9 are continuously held to enable the forceps heads to be firmly clamped.

After the suturing is finished, the front end of the clamping device 4 is pressed to separate the rear end from the gear 3, and the spring 103 drives the connecting rod and the right forceps head 101 to return to the original position, so that the next suturing is facilitated.

Therefore, the utility model discloses the accessible is controlled the gear assembly and is rotated the backshank when the centre gripping suture needle, and the position of direct adjustment needle need not use other apparatus to assist.

The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention.

Claims

1. The utility model provides a novel peritoneoscope needle holder of needle is transferred to head end slidable which characterized in that:

comprises a movable tong head component (1), a hollow sleeve (2), a gear component (3) and a clamping structure (4);

the movable tong head component (1) is used as one of a pair of tong head components and comprises a connecting rod, the tail end of the connecting rod is connected with one end of a spring (103), and the other end of the spring (103) is fixed in the hollow sleeve (2); a section of sawtooth structure is arranged on the connecting rod;

the gear assembly (3) is fixed on the hollow sleeve (2) and is meshed with the sawtooth structure;

the clamping structure (4) is also fixed on the hollow sleeve (2), and is provided with a controllable clamping tooth for locking the gear assembly (3) in one direction.

2. The novel laparoscopic needle holder with a slidably adjustable needle at the head end as claimed in claim 1, wherein: the hollow sleeve (2) is provided with a sliding groove (201), and the connecting rod is provided with a sliding block (104) which is limited in the sliding groove (201) and can slide along the length direction of the hollow sleeve.

3. The novel laparoscopic needle holder with a slidably adjustable needle at the head end as claimed in claim 1, wherein: the pair of handles is provided with corresponding sawtooth strips (11, 12), and the sawtooth strips are distributed in a two-section mode.

4. The novel laparoscopic needle holder with a slidably adjustable needle at the head end as claimed in claim 1, wherein: the other forceps head component of the forceps head component comprises a pull rod (5), the tail end of the pull rod (5) is connected with one end of a pair of connecting rods (6, 7), and the other end of each connecting rod is hinged with the handle.

5. The novel laparoscopic needle holder with a slidable needle adjusting head end as claimed in claim 4, wherein: the front end of the pull rod (5) is hinged with the hollow sleeve (2) through a hinge (501).

6. The novel laparoscopic needle holder with a slidably adjustable needle at the head end as claimed in claim 1, wherein: a fixing rod (202) is arranged in the hollow sleeve (2), and the other end of the spring is fixedly connected with the fixing rod (202).