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

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

A new type of laparoscopic needle holder with slidable head end for needle adjustment

technical field

The utility model relates to a laparoscopic needle holder, in particular to a novel laparoscopic needle holder whose head end can be slidably adjusted.

Background technique

Nowadays, as an important implementation of minimally invasive surgery, laparoscopy is widely used in almost all surgical fields such as general surgery, urology, and thoracic surgery. Laparoscopic equipment consists of 5 basic systems. Among them, the needle holder of the endoscopic surgical instrument is used for needle-holding suture under the laparoscope, but the existing laparoscopic needle holder only has a simple clamping function and cannot directly adjust the angle of the suture needle. Instead, it requires the assistance of instruments such as tissue forceps. This process is inconvenient to operate, which prolongs the operation time and the learning curve of doctors to a certain extent.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to provide a novel laparoscopic needle holder with a slidable head end for adjusting the needle, which solves the disadvantage that the angle of the suture needle cannot be directly adjusted when the existing laparoscopic needle holder holds the suture needle. The needle head can rotate the suture needle, and then the angle of the suture needle can be directly adjusted without the assistance of other instruments, which simplifies the needle holding process and speeds up the operation progress.

The utility model adopts the following technical solutions:

A novel laparoscopic needle holder with slidable needle adjustment, comprising a movable forceps head assembly 1, a hollow sleeve 2, a gear assembly 3, and a clamping structure 4; the movable forceps head assembly 1 serves as a pair of forceps heads One of the components includes a connecting rod, the end of the connecting rod is connected with one end of the 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 in the hollow sleeve. 2 , and meshes with the sawtooth structure; the latching structure 4 is also fixed on the hollow sleeve 2 , and is provided with a controllable latching tooth for unidirectional locking of the gear assembly 3 .

Preferably, 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.

Further, a pair of handles is also included, and corresponding sawtooth strips 11 and 12 are arranged on the pair of handles, and the sawtooth strips are distributed in two sections.

Preferably, the other pliers head assembly of the pliers head part includes a pull rod 5, 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 effect of the utility model is that the needle tail can be rotated when the suture needle is clamped by manipulating the gear assembly, and the orientation of the needle can be directly adjusted without using other instruments for assistance.

Description of drawings

FIG. 1 is an overall schematic diagram of the novel laparoscopic needle holder with slidable needle adjustment according to the present invention.

FIG. 2 is a partial enlarged view of FIG. 1 .

In the figure, 1. Movable clamp head assembly, 2. Hollow sleeve, 3. Gear assembly, 4. Positioning assembly, 5. Pull rod, 6. Connecting rod, 7. Connecting rod, 8. Left handle, 9. Right Handle, 11. Serrated bar, 12. Serrated bar, 13. Left pliers head, 14. Seat body, 15. Suture needle, 201. Chute, 401. Spring shaft, 501. Hinge, 601. Hinge, 701. Hinge.

Detailed ways

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

When using the existing laparoscopic needle holder to hold the suture needle, it is necessary to use other instruments such as tissue forceps to continuously adjust the angle of the suture needle, so that the tissue can be sutured smoothly. In this embodiment, a forceps head that can move back and forth can be used to rotate the needle tail when clamping the suture needle, so as to directly adjust the orientation of the needle without the assistance of other instruments.

For example, referring to 1-2, 1 is a right pliers head assembly, which includes a pliers head, a connecting rod, a spring 103, and a slider 104 fixed on the connecting rod, wherein the end of the connecting rod has a sawtooth structure, as shown in FIG. 2 .

Continuing to refer to Figures 1-2, 2 is a hollow casing, the wall of which is provided with a chute 201, and the slider 104 can slide back and forth in the chute 201. 3 is a gear assembly, its gear shaft is fixed on the pipe wall, 4 is a clamping structure, which is fixed on the pipe wall by the spring shaft 401, the rear end has teeth that can be clamped on the gear 3, press the front end of 4, the rear end can be lifted. Release gear 3, and after releasing, the rear end falls to hold gear 3. The front end of the spring 103 is connected with the connecting rod 102 , and the rear end is connected with the fixing rod 202 .

The fixing rod 202 is fixed on the inner side of the pipe wall.

5 is the pull rod, 501 is the hinge. 6 and 7 are connecting rods, 8 is the left handle, 9 is the right handle, and 801 and 901 are hinges. 11 and 12 are sawtooth strips fixed on the left and right handles. The sawtooth strips 11 and 12 are respectively provided with two sections of sawtooth structure, and there is a section of toothless section between the two sawtooth structures. 13 is the left clamp head, and 14 is the seat body.

Among them, the right pliers head can be moved forward and backward by engaging the slider 104 in the chute 201 , the gear shaft of the gear assembly 3 is fixed on the pipe wall of the hollow sleeve 2 , and the clamping element 4 is also fixed on the pipe wall through the spring shaft 401 , the rear end of the card position assembly 4 has teeth that can be locked on the gear 3 .

Press the front end of the clip assembly 4, the rear end lifts up to release the gear 3, and after loosening, the rear end falls down to lock the gear 3. As a preferred option, the locking assembly 4 can be designed in the form of a one-way limit, that is, only the counterclockwise rotation of the gear 3 is restricted, and the clockwise rotation of the gear 3 is not restricted.

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

The lower end of the connecting rod 7 is connected to the left handle 8 through the hinge 701, the lower end is connected to the pull rod 5 through the 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 and fixed to the left clamp head 13.

When in use: grip the left and right handles 8 and 9, and drive the pull rod 5 to move backward through the connecting rods 6 and 7, so that the left clamp head 13 is closed upward. There are two sawtooth structures on the sawtooth strips 11 and 12. With the engagement of the first sawtooth structure of the sawtooth strips 11 and 12, the left and right pliers 8 and 9 are slightly closed to hold the suture needle 15, and then the gear 3 is rolled backwards. The sliding block 104 is driven by the connecting rod to slide forward in the chute 201, the right forceps head 101 moves forward relative to the left forceps head 13, and then the suture needle 15 is rotated forward along its tail shaft, thereby directly adjusting the position of the suture needle 15 , During this process, the sawtooth bars 11 and 12 are just at the position without the rack segment, which can reduce the resistance.

At this time, the gear 3 is released, and the locking device 4 keeps the gear 3 stationary, and continues to hold the left and right pliers 8 and 9 so that the pliers are firmly clamped.

After the stitching is completed, press the front end of the clamping device 4 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 their positions, which is convenient for the next stitching.

It can be seen from this that the present invention can directly adjust the orientation of the needle by controlling the gear assembly to rotate the needle tail when clamping the suture needle, and does not need to use other instruments for assistance.

The above are the preferred embodiments of the present invention. Those of ordinary skill in the art can also carry out various transformations or improvements on this basis. Without departing from the general concept of the present invention, these transformations or improvements should belong to the present invention. within the scope of the new claims.

Claims (6)

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).

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