CN217244579U

CN217244579U - Handheld endoscope needle holding forceps

Info

Publication number: CN217244579U
Application number: CN202221000019.2U
Authority: CN
Inventors: 张大宏; 江业廷; 朱余忠; 许英杰
Original assignee: Hangzhou Huajiang Medical Robot Co ltd
Current assignee: Hangzhou Huajiang Medical Robot Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-23
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a hand-held endoscope needle holding forceps, comprising: a handle casing, a control end mounted on the handle casing, a connecting rod connected with the control end, and a connecting rod mounted on the connecting rod The pliers head part at the end, the control end is installed on the handle housing; the pliers head part includes: a swing assembly and a grasper assembly installed on the swing assembly; the control end includes : the rotation knob installed on the connecting rod; the yaw knob connected with the swing assembly of the pliers head part; and the trigger connected with the grasping pliers assembly of the pliers head part. The utility model is specially used for endoscopic surgery, and has a reasonable design and structure. The front end of the needle-holding forceps can be freely opened and closed, swayed and rotated, and can clamp and lock the suture needle. It is easy to control, convenient to use, flexible and practical, and has the advantages of Better economy and liquidity.

Description

Handheld endoscope needle holding forceps

Technical Field

The utility model relates to an endoscope needle holder field, concretely relates to hand-held type endoscope needle holder.

Background

Conventional laparoscopic surgical instruments are not ergonomic and are limited by less freedom of movement within the cavity, which results in the surgeon being severely limited in performing simple procedures, let alone complex procedures, making it difficult for many surgeons to perform a variety of minimally invasive procedures and operations. Most of the market are two types of laparoscopic surgical instruments: conventional straight-type hand-operated instruments and surgical instruments based on consoles and large surgical robots. Surgical robotic systems offer greater flexibility, stability, surgical field definition, and 3D vision, but require significant financial cost and logistical complexity. Moreover, the robotic devices do not show great enough advantages over the bulky surgical robots and traditional laparoscopic instruments in non-clinical environments, and current hand-held surgical instruments have a wide user base.

As the technology of multi-joint surgical instruments matured, handheld robotic surgical instruments became available, providing a transitional option between traditional laparoscopic instruments and surgical robots.

Compared to conventional surgical instruments, the novel handheld endoscopic needle forceps can provide at lower cost some functions that are currently only found in surgical robotic systems: 1. the multi-degree-of-freedom joint provides more flexible and natural operation experience without extreme movements of limbs; 2. realize many joints steady motion simultaneously, can shorten operation time, provide better operation incision etc to improve operation quality. Thereby affecting the minimally invasive surgery market.

Compared with a complicated surgical robot, the novel handheld endoscope needle holder is more flexible and practical than the traditional laparoscopic surgical instrument and has better economical efficiency and circulation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the problem that solves is: in order to overcome the problems, the handheld endoscope needle holder is specially used under the endoscopic surgery, has a reasonable design structure, can be freely opened, closed, deflected and rotated at the front end of the needle holder, and can clamp and lock a suture needle.

A hand-held endoscopic needle forceps comprising: the pliers comprise a handle shell, a control end arranged on the handle shell, a connecting rod connected with the control end and a pliers head part arranged at the end part of the connecting rod, wherein the control end is arranged on the handle shell;

the head of the pliers part comprises: the gripper assembly is arranged on the swing assembly;

the control end comprises:

a self-rotating knob (i.e. a self-rotating wheel) arranged on the connecting rod (particularly a carbon fiber rod can be selected);

a yaw knob connected to a swing assembly of the jaw member;

and a trigger coupled to the grasper assembly of the jaw member.

The utility model discloses in, it is rotatory through rotation knob control connecting rod to the binding clip head spare on the control connecting rod is rotatory, can make the binding clip head spare carry out the rotation, through driftage knob control swing subassembly beat, can make the apparatus binding clip (grab the pincers subassembly promptly) carry out the beat, can make the apparatus binding clip (grab the pincers subassembly promptly) and carry out the function of opening and shutting through controlling the trigger, snatchs.

The handle is characterized in that a connecting ring is installed in the handle shell, an outer ring bushing is fixed on the connecting ring, an inner ring bushing is fixed on the connecting rod, and the inner ring bushing and the outer ring bushing are in sliding fit. The utility model can drive the jaw part and the connecting rod to rotate by rotating the rotation knob. And a friction plate is arranged between the outer ring bushing and the inner ring bushing.

The yaw rotary knob is connected with a yaw rotating shaft, a cam is fixed on the yaw rotating shaft, a first control rod is connected onto the cam, and the first control rod is connected with the swinging assembly through a first control rope.

The handle shell in be fixed with the guide rail spout, the guide rail spout install the slider, the slider on be connected with the second control rod, the second control rod pass through the second control rope with the nipper subassembly is connected, the trigger with the slider is connected, can drive the slider through controlling the trigger to drive second control rod and second control rope, drive nipper subassembly and carry out the function of opening and shutting, snatch.

The trigger on be connected with reset spring, reset spring one end connect in on the trigger, the reset spring other end connect in on the handle casing.

Compared with the prior art, the utility model has the advantages of as follows:

the utility model discloses hand-held type endoscope needle forceps, the doctor can be through control rotation knob, driftage knob and trigger control binding clip (nipper subassembly) rotate, beat and press from both sides the action of getting, use under the endoscopic surgery is exclusively used in, its project organization is reasonable, the front end of needle forceps can freely open and shut, beat and rotate, can the centre gripping and lock the sewing needle, easily control, convenient to use, nimble practicality and have better economic nature and circulation.

Drawings

FIG. 1 is a schematic view of the internal structure of a needle holder of a hand-held endoscope according to the present invention;

FIG. 2 is a schematic view of the internal structure of the control end of the needle holder of the handheld endoscope of the present invention;

fig. 3 is a schematic view of the installation structure of the rotation knob of the present invention;

fig. 4 is a schematic view of the internal structure of the rotation knob according to the present invention;

fig. 5 is a schematic view of the installation structure of the yaw knob and the guide rail assembly of the present invention;

fig. 6 is a schematic view of the installation structure of the yaw knob of the present invention;

fig. 7 is a schematic structural view of the guide rail assembly of the present invention;

fig. 8 is a schematic structural view of the bottom view of the guide rail assembly of the present invention;

fig. 9 is an external view of the needle holder of the handheld endoscope of the present invention.

Detailed Description

The following describes the handheld endoscope needle holding forceps in further detail with reference to the attached drawings.

As shown in fig. 1, 2 and 9, a hand-held endoscope needle holder includes: the clamp comprises a handle shell 1, a control end arranged on the handle shell 1, a connecting rod 2 (a specific carbon fiber rod) connected with the control end and a head part 3 arranged at the end part of the connecting rod, wherein the control end is arranged on the handle shell 1.

As shown in fig. 1 and 9, the jaw member 3 includes: a swinging component 3-1 and a nipper component 3-2 arranged on the swinging component 3-1; the tong part is composed of a swing nipper, a nipper base, a nipper pin, a yaw wheel, a yaw shaft, a micro-joint base and a deep groove ball bearing.

As shown in fig. 1, 2, and 9, the control terminal includes: a self-rotating knob 4 (i.e. a self-rotating wheel) arranged on the connecting rod 2 (particularly a carbon fiber rod can be selected); a yaw knob 5 connected to the swing assembly 3-1 of the caliper head part 3; and a trigger 6 connected to the grasper assembly 3-2 of the nosepiece 3.

As shown in fig. 1, 2, 3 and 4, a connection ring 41 (i.e., a component connection ring) is mounted on the handle case 1, an outer ring bushing 44 is fixed to the connection ring 41 through a screw 46, an inner ring bushing 45 is fixed to the connecting rod 2 through a nut 42, the inner ring bushing 45 is slidably engaged with the outer ring bushing 44, and a friction plate 43 is disposed between the inner ring bushing 45 and the outer ring bushing 44, so that the caliper head component 3 and the connecting rod 2 can be driven to rotate by rotating the rotation knob 4.

As shown in fig. 2, 5 and 6, the yaw knob 5 is connected to a yaw rotating shaft 55, the yaw rotating shaft 55 is sleeved with the shaft sleeve 51, a cam 54 is fixed to the yaw rotating shaft 55, and the cam 54 is connected to a first control rod which is connected to the swing assembly 3-1 through a first control rope.

As shown in fig. 2, 5, 7 and 8, a guide rail sliding groove 68 is fixed in the handle housing 1, the guide rail sliding groove 68 is mounted on the shaft sleeve 51 through the connecting shaft 53 and the yaw outer ring bushing 52, a sliding block 67 is mounted on the guide rail sliding groove 68, a second control rod is connected to the sliding block 67, the second control rod is connected to the grasper assembly 3-1 through a second control rope, the sliding block 67 can be driven by operating the trigger 6, so that the second control rod and the second control rope are driven, and the grasper assembly 3-1 is driven to perform an opening and closing function to grasp. The guide rail assembly 61 is composed of a baffle plate 64, a baffle plate 65, a baffle plate 66, a slide block 67 and a guide rail sliding groove 68. The connecting plate 63 is fixed to the rail runner 68 by screws 62, and the connecting ring 41 is fixed to the connecting plate 63 by screws 46.

As shown in fig. 2, a return spring 7 (i.e., a tension spring) is connected to the trigger 6, one end of the return spring 7 is connected to the trigger 6, the other end of the return spring 7 is connected to the handle case 1,

the utility model discloses in, it is rotatory through rotation knob 4 control connecting rod 2 to jaw spare 3 on the control connecting rod 2 is rotatory, can make jaw spare 3 carry out the rotation, controls swing subassembly 31 beat through driftage knob 5, can make the apparatus binding clip (grab jaw subassembly 3 promptly) carry out the beat, can make the apparatus binding clip (grab jaw subassembly 3 promptly) function that opens and shuts through controlling trigger 6, snatchs.

A hand-held endoscope needle holder can make the forceps head of the instrument perform the functions of deflection and rotation by controlling a yaw knob 5 and a rotation knob 4 which are positioned on a control end, and can make the forceps head of the instrument perform the function of opening and closing by controlling a trigger 6.

The first control rod and the second control rod are both made of stainless steel capillary tubes, and the first control rope and the second control rope are both made of tungsten wire ropes.

The utility model discloses, trigger 6 is connected with handle shell 1 through the pin, and intermediate junction spare 8 is connected with handle shell 1 through the pin, and the bush cooperates with trigger 6, slider 67 simultaneously, and tension spring (being reset spring 7)'s one end hook is on trigger 6, and the other end is connected with handle shell 1 through the screw. The slide block 67 is fixed on the stainless steel capillary tube through a screw, the stainless steel capillary tube is connected with the tong head (the nipper assembly 3-2) through a tungsten wire rope, and a doctor can control the tong head to rotate, swing and clamp through controlling the autorotation knob 4, the yawing knob 5 and the trigger 6.

The carbon fiber rod is connected with the inner ring lining 45 through a groove, one end of the inner ring lining 45 is locked through a nut, the lining is fixed on the rotation knob 4 through a screw 46, and a doctor can drive the tong head and the carbon fiber rod to rotate by rotating the rotation knob 4.

The doctor drives the cam 54 to rotate by rotating the yaw knob 5, the cam 54 drives the sliding block to slide in the groove of the cam, and the sliding block is connected with the stainless steel capillary tube through the jackscrew, so that the forceps head is adjusted to swing.

The above-mentioned detailed description of the technical solution and the beneficial effects of the present invention have been described in detail, it should be understood that the above is only the most preferred embodiment of the present invention, not used for limiting the present invention, any modification, supplement, equivalent replacement, etc. made within the principle scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A hand-held endoscope needle holding forceps, comprising: a handle housing, a control end mounted on the handle housing, a connecting rod connected with the control end, and a connecting rod mounted on the end of the connecting rod; The pliers head part, the control end is mounted on the handle housing; it is characterized in that, the pliers head part comprises: a swing assembly and a grasper assembly installed on the swing assembly;

The control terminal includes:

a rotation knob installed on the connecting rod;

a yaw knob connected to the swing assembly of the pliers;

and a trigger connected to the jaw assembly of the jaw assembly.

2 . The hand-held endoscope needle holding forceps according to claim 1 , wherein the connecting rod is a carbon fiber rod. 3 .

3 . The hand-held endoscope needle holding forceps according to claim 1 , wherein a connecting ring is installed in the handle housing, the connecting ring is fixed with an outer ring bushing, and the connecting rod is 3. 4 . An inner ring bushing is fixed, and the inner ring bushing and the outer ring bushing are slidably matched.

4 . The hand-held endoscope needle holding forceps according to claim 3 , wherein a friction plate is arranged between the outer ring bushing and the inner ring bushing. 5 .

5 . The hand-held endoscope needle holding forceps according to claim 1 , wherein the yaw knob is connected with a yaw rotation shaft, the yaw rotation shaft is fixed with a cam, and the cam is connected with There is a first control rod, and the first control rod is connected with the swing assembly through a first control rope.

6 . The hand-held endoscope needle-holding forceps according to claim 1 , wherein a guide rail chute is fixed in the handle housing, a slider is installed on the guide rail chute, and the slider A second control rod is connected thereon, and the second control rod is connected with the grasping forceps assembly through a second control rope.

7 . The hand-held endoscope needle-holding forceps according to claim 6 , wherein the trigger is connected with the slider. 8 .

8 . The hand-held endoscope needle holding forceps according to claim 1 , wherein a return spring is connected to the trigger, one end of the return spring is connected to the trigger, and the return spring is connected to the trigger. 9 . The other end is connected to the handle housing.