CN219480188U - Biopsy forceps with adjustable forceps head angle - Google Patents

Abstract

The utility model relates to the technical field of medical appliances, in particular to a biopsy forceps capable of adjusting the angle of a forceps head, which is used for taking tissue under an electronic endoscope for biopsy and solves the technical problems that the existing biopsy forceps cannot adjust the angle of the forceps head and cannot assist in endoscopic operation through adjusting the angle of the forceps head. A biopsy forceps with adjustable jaw angle comprising: a rod body; the side deflection mechanism is arranged at the proximal end of the rod body; the side deflection mechanism is provided with a rotation part, and the rotation part can deflect a preset angle range at two sides of the rod body part; the clamp structure is arranged on the rotating part and comprises a clamping mechanism which can be opened or closed by traction action by a preset clamping angle. The utility model has the beneficial effects that: the biopsy forceps head has a deflection function, can adjust an angle and is convenient to operate; can shorten the operation time and improve the operation experience of patients.

Description

Biopsy forceps with adjustable forceps head angle

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a biopsy forceps capable of adjusting the angle of a forceps head, which is used for taking tissue under an electronic endoscope for biopsy.

Background

In the current mode, various electronic endoscopes such as gastroscopes, colonoscopes, duodenoscopes and the like play an irreplaceable role in diagnosis and treatment of digestive tract mucous membrane diseases by other examination methods;

the biopsy forceps reach the biopsy site through the accessory pipeline of the electronic endoscope, the forceps take the digestive tract lesions such as polyps, tumors and other tissues, and the tissues taken off by the forceps can be sent to clear diagnosis of the pathology;

due to various natural curves and mucosal folds in the alimentary canal, when a biopsy forceps is used under an endoscope to take tissues, the biopsy forceps are difficult to accurately reach the part to be biopsied due to improper angles or blockage by the mucosal folds.

The forceps head of the biopsy forceps used conventionally cannot be bent, and at present, the position of a patient can be adjusted only or the angle of the end of an inner lens can be adjusted so as to facilitate the biopsy forceps to reach a target;

however, the existing various operation skills are difficult for a doctor with less experience to master, and even for a senior physician, the difficulties are also existed, so that the operation time is prolonged, and the discomfort of a patient is increased;

more importantly, the operation deflection and bending can be used as reference in the prior art, the lead wire is exposed, and the clamping operation is matched, so that no better implementation mode exists at present;

for example, in the prior art, the Chinese patent is called ZL202021992199.8, and the biopsy forceps head, the biopsy forceps and the endoscopic system are named as biopsy forceps heads, the biopsy forceps head comprises a clamping part, a receiving part and a connecting part which are connected with each other, the connecting part is used for being rotationally connected with a forceps head seat, a containing space for containing tissues is defined between the clamping part and the receiving part, and the biopsy forceps head, the biopsy forceps and the endoscopic system can control the forceps taking amount of the tissues, reduce the risk of tearing the tissues, reduce the bleeding amount and shorten the operation time;

the mode of this technical scheme solution problem is the centre gripping effect when improving the centre gripping.

Disclosure of Invention

The utility model aims to solve the problems in the prior art that the existing biopsy forceps cannot adjust the angle of the forceps head and can not assist in endoscopic operation by adjusting the angle of the forceps head.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a biopsy forceps with adjustable jaw angle comprising:

a rod body;

a side deflection mechanism disposed at a proximal end of the shaft portion;

the side deflection mechanism is provided with a rotation part, and the rotation part can deflect a preset angle range at two sides of the rod body part;

the side deflection mechanism can fix the rotating part in a locking state;

the side deflection mechanism can enable the rotating part to rotate in a preset angle range in an unlocking state;

the clamp structure is arranged on the rotating part and comprises a clamping mechanism which can be opened or closed by traction action by a preset clamping angle.

Specifically, the forceps structure includes:

one end of the checking forceps connecting part is connected with the radial direction of the rotating part, and the other end of the checking forceps connecting part is provided with the clamping mechanism;

the clamping mechanism comprises:

a first fixing part fixedly connected to a first end of the forceps connecting part;

the first clamping part is fixedly connected with the first fixing part;

and the second clamping part can be meshed together when the preset clamping angle is the same as the preset clamping angle.

Specifically, the method also comprises the following steps:

a second fixing part which is in a major arc shape and is fixedly connected with one end of the second clamping part;

the first fixing part is used for constructing a major arc space;

the second fixing part can be arranged in the major arc space and hinged with the first fixing part through a rotating shaft.

Specifically, a first threading hole is formed in one side of the second clamping part, which is located at the second fixing part;

a second threading hole is formed in one side of the second fixing part, which has the largest major arc diameter;

the clamping traction rope is wound on and connected with a first wheel spool, the first wheel spool is respectively connected with the first threading hole and the second threading hole, and the first wheel spool is driven by the micro motor to rotate positively and reversely.

Specifically, the clamping traction rope passes through a clamping threading hole formed in the rod body part and penetrates out of the distal end of the rod body part;

a rotatable first wheel spool is arranged at the distal end of the rod body;

the miniature motor is fixed on a bracket;

the support is fixedly connected with the rod body.

Specifically, the side-sway mechanism comprises:

the pressing mechanism can press the upper end and the lower end of the rotating part;

the hold-down mechanism includes:

the two groups of compression plates are respectively connected with the first end of the rod body part through the elastic component part;

in the locked state, the two groups of compacting plates can be parallel;

in the unlocking state, the second ends of the two groups of pressing plates incline away from the central line under the action of the elastic component parts;

and a rotating space is formed between the two groups of compacting plates, and the rotating part is positioned in the rotating space.

Specifically, the upper end and the lower end of the rotating part are provided with first pressing structures, and the first pressing structures are in wave shapes on the outer edge of the rotating part;

the second pressfitting structure, the pressure strip is located one side in the rotation space sets up the second pressfitting structure, the molding of second pressfitting structure with first pressfitting structure is the same, and the wavy mutually support between the two.

Specifically, a compression shaft hole is formed in the compression plate, and a rotation shaft hole is formed in the center of the rotation part;

the compression shaft hole and the rotation shaft hole have the same axis;

a rotary main shaft can be arranged in the compression shaft hole and the rotary shaft hole in a penetrating way;

the radial first side of rotation portion is connected with two parallel arrangement's threading portion, be provided with the third through wires hole on the threading portion, the second haulage rope can be worn to establish by the third through wires hole.

Specifically, the second end of the rotating main shaft penetrates out of one pressing plate and is connected with a rotating pin;

the first end of the rotating main shaft penetrates out of the other pressing plate and is connected with a pin, and the pin is rotationally connected with an eccentric shaft of an eccentric wheel;

in the locking state, the major arc part of the eccentric wheel is abutted against the upper surface of the adjacent compacting plate, and an operating rod connected with the eccentric wheel is parallel to the rod body;

the operating rod acts clockwise and can enter the unlocking state, and the pin columns can partially retract into the adjacent compression shaft holes.

Specifically, two second haulage ropes respectively penetrate into two adjusting holes formed in the rod body;

each adjusting hole is communicated with an adjusting outlet, and the adjusting outlets are arranged in the radial direction of the rod body part;

each second traction rope can penetrate out of the adjusting outlet and is connected with a rope head.

The utility model has the following beneficial effects:

the utility model has the beneficial effects that: 1. the device ensures that the forceps head of the biopsy forceps has a deflection function, can adjust the angle and is convenient to operate; 2. the device can shorten the operation time and improve the operation experience of patients.

Drawings

The utility model is described in further detail below with reference to the drawings and the detailed description.

FIG. 1 is an enlarged view of a portion of a side swing mechanism of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is a schematic top view of the present utility model in reverse configuration;

FIG. 4 shows an embodiment of the state of the pressing plate and the elastic member of the present utility model;

FIG. 5 is a schematic view of the arrangement of the adjustment holes and the clamping threading holes of the present utility model;

fig. 6 is a configuration embodiment of the first bonding structure and the second bonding structure according to the present utility model.

Reference numerals in the drawings denote:

the rod body part 10, the side deflection mechanism 20, the rotating part 210 and the checking forceps structure 30;

the forceps connecting part 301, the first fixing part 311, the second clamping part 322, the first clamping part 321, the second fixing part 312, the major arc space 302, the first threading hole 331 and the second threading hole 332;

a clamping traction rope 340, a first wheel spool 341, a micro motor 342 and a bracket 343;

a pressing plate 202, an elastic member portion 201, a rotation space 203;

a first press-fit structure 310, a second press-fit structure 320;

a pressing shaft hole 333, a rotation shaft hole 323, and a third threading hole 330;

the second traction rope 362, the pin 351, the eccentric 352, the operating lever 353, the adjustment hole 363, the adjustment outlet 364, the rope head 365.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model; it should be noted that, for convenience of description, in the present application, "left side" is "first end", "right side" is "second end", "upper side" is "first end", and "lower side" is "second end" in the current view, and the purpose of this description is to clearly express the technical solution, and should not be construed as unduly limiting the technical solution of the present application.

The utility model aims to solve the problems that the prior biopsy forceps cannot adjust the angle of the forceps head and can not assist in endoscopic operation by adjusting the angle of the forceps head, the technical scheme can improve the efficiency of endoscopic treatment by doctors and reduce the pain of patients by designing the biopsy forceps with the adjustable angle of the forceps head, and the biopsy forceps with the adjustable angle of the forceps head can have great help and significance for practical operation even if a small angle can be timely adjusted before operation in practical operation, and for this reason, the utility model provides the following design scheme, please refer to the biopsy forceps with the adjustable angle of the forceps head shown in the accompanying drawings 1-4, which comprises the following steps: a rod body 10; the lateral deflection mechanism 20 is arranged at the proximal end of the rod body 10; the side deflection mechanism 20 has a rotation part 210, and the rotation part 210 can deflect a preset angle range at two sides of the rod body part 10;

wherein, the side swing mechanism 20 can fix the rotating part 210 in a locked state;

wherein, the side swing mechanism 20 can enable the rotatable portion 210 to rotate within a preset angle range in an unlocked state;

the forceps structure 30 is mounted on the rotating section 210, and the forceps structure 30 includes a clamping mechanism capable of being opened or closed by a pulling action by a predetermined clamping angle.

In the prior art, the automatic design mode of the instrument is a design spool, the spool is relied on to maintain a stable state, the problems of an operator include control on angle maintenance, relative control on clamping is easier, the locking state of the technical scheme can remarkably solve the problem of deflection angle, and when the biopsy forceps provided by the scheme are used, the biopsy forceps are inserted into an accessory pipeline of an electronic endoscope, the lens end can be configured in the mode of the prior art, the biopsy forceps can reach a biopsy part to be taken more accurately after angle adjustment, and operation is completed.

The utility model has the beneficial effects that: 1. the device ensures that the forceps head of the biopsy forceps has a deflection function, can adjust the angle and is convenient to operate; 2. the device can shorten the operation time and improve the operation experience of patients.

In one specific embodiment, referring to fig. 1 and 2, the forceps structure 30 includes: a forceps connecting portion 301 having one end connected to the radial direction of the rotating portion 210 and the other end provided with a clamping mechanism;

the fixture includes: a first fixing portion 311 fixedly connected to a first end of the forceps connecting portion 301; a first clamping portion 321 fixedly connected to the first fixing portion 311; a second clamping portion 322, wherein the first clamping portion 321 and the second clamping portion 322 can be snapped together when the preset clamping angle is 0 degrees;

in a specific embodiment, referring to fig. 1 and 2, the method further includes: a second fixing portion 312 having a major arc shape and fixedly coupled to one end of the second clamping portion 322; the first fixing portion 311 constructs a major arc space 302; the second fixing portion 312 can be disposed in the major arc space 302 and hinged to the first fixing portion 311 through a rotation shaft.

Further, as shown in fig. 2, a first threading hole 331 is formed on a side of the second fixing portion 312 located at the second clamping portion 322; the second threading hole 332 is provided at the side of the second fixing portion 312 where the major arc diameter is the largest; the clamping traction rope 340 is wound around and connected with a first wheel spool 341, and is respectively connected with the first threading hole 331 and the second threading hole 332, and the first wheel spool 341 is driven by the micro motor 342 to rotate positively and negatively.

The clamping force is set by the first wheel spool 341 winding the clamping traction rope 340, so that the forward rotation can be set to be clamping, the reverse rotation can be set to be opening, and the operation is more flexible and simpler. Referring to fig. 1 to 6, the clamping pull rope 340 passes through the clamping threading hole 11 formed in the rod body 10 and passes out from the distal end of the rod body 10; the distal end of the rod body 10 is provided with a rotatable first spool 341; the micro motor 342 is fixed on a bracket 343; the bracket 343 is fixedly connected with the rod body 10; therefore, the overall structure configuration is more simplified, and the processing, the manufacturing and the maintenance are convenient.

Referring to fig. 1, 2 and 3, the yaw mechanism 20 includes: a pressing mechanism capable of pressing upper and lower ends of the rotating part 210; the compressing mechanism comprises: two groups of pressing plates 202 are respectively connected with the first end of the rod body 10 through elastic member parts 201;

in the locked state, the two sets of compression plates 202 can be parallel, as shown in fig. 1 and 2;

in the unlocking state, the second ends of the two groups of pressing plates 202 incline away from the central line under the action of the elastic member part, as shown in fig. 4, the locking of the deflection in the technical scheme uses the principle in fig. 4, which is equivalent to that the elastic member part inclines in a natural state, a rotation space 203 is formed between the two groups of pressing plates 202, and the rotation part 210 is positioned in the rotation space 203;

in a further technical solution, as shown in fig. 2 and 4, the upper and lower ends of the rotating portion 210 are provided with first pressing structures 310, and the first pressing structures 310 are configured to be wavy at the outer edge of the rotating portion 210;

the second pressing structure 320 is disposed on the side of the pressing plate 202 located in the rotating space 203, the second pressing structure 320 is identical to the first pressing structure in shape, and the two pressing structures are matched in a wavy manner. Referring to fig. 6, an embodiment of an arrangement is shown, in which the first pressing structure 310 and the second pressing structure 320 are configured such that the pressing force is more stable, and the deflection in the locked state is prevented, so that the deflection can be more effectively fixed.

For more detailed description, referring to fig. 4, the pressing plate 202 is provided with a pressing shaft hole 333, and the center of the rotating portion 210 is provided with a rotating shaft hole 323; the pressing shaft hole 333 and the rotation shaft hole 323 have the same axis; a rotating main shaft 304 can be penetrated in the pressing shaft hole 333 and the rotating shaft hole 323; referring to fig. 4, which is a schematic diagram illustrating an unlocked state, the second end of the rotating main shaft 304 penetrates out of a pressing plate 202 and is connected with a rotating pin; the first end of the rotating main shaft 304 penetrates out of the other pressing plate 202 and is connected with a pin 351, and the pin 351 is connected with an eccentric shaft of an eccentric wheel 352 in a rotating way;

in the locked state, the major arc portion of the eccentric wheel 352 abuts against the upper surface of the pressing plate 202 adjacent thereto, and the operating rod 353 of the eccentric wheel 352 is connected in parallel with the rod body 10; the operation lever 353 is moved clockwise to be in an unlocked state, and the pin 351 is partially retracted into the adjacent pressing shaft hole 333.

In a specific unlocking process, the eccentric wheel 352 releases the space with the diameter by actuating the operating rod 353, so that the pin 351 is retracted into the pressing shaft hole 333, and at this time, even if the two ends of the pin 351 are limited by the pressing shaft hole 333, the upper and lower ends of the rotating part 210 at the rotating shaft hole 323 are released, so that the rotating part 210 has a rotating condition.

Under the condition of rotation, two threading parts which are arranged in parallel are connected to the radial first side of the rotating part 210, a third threading hole 330 is arranged on the threading part, and the second traction rope 362 can be threaded through the third threading hole 330.

Referring to fig. 3, two second traction ropes 362 respectively penetrate into two adjustment holes 363 provided in the rod body 10; each adjusting hole 363 is communicated with an adjusting outlet 364 which is arranged in the radial direction of the rod body 10; each second traction rope 362 can be threaded out of the adjustment outlet 364 and connected to a rope head 365; thus, each second traction rope 362 can be independently adjusted to control a proper angle, and the locking is realized by pressing down the operation lever 353.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. A biopsy forceps with adjustable jaw angle, comprising:

a rod body (10);

a yaw mechanism (20) disposed at a proximal end of the shaft body (10);

the side deflection mechanism (20) is provided with a rotation part (210), and the rotation part (210) can deflect a preset angle range at two sides of the rod body part (10);

wherein the side swing mechanism (20) can fix the rotating part (210) in a locking state;

wherein the side swing mechanism (20) can enable the rotating part (210) to rotate in a preset angle range in an unlocking state;

and a forceps structure (30) mounted on the rotating portion (210), the forceps structure (30) including a clamping mechanism capable of being opened or closed by a traction motion by a predetermined clamping angle.

2. The adjustable jaw angle biopsy forceps of claim 1, wherein the forceps structure (30) comprises:

a forceps connecting section (301) having one end connected to the radial direction of the rotating section (210) and the other end provided with the clamping mechanism;

the clamping mechanism comprises:

a first fixing part (311) fixedly connected to a first end of the forceps connecting part (301);

a first clamping portion (321) fixedly connected to the first fixing portion (311);

and a second clamping part (322), wherein when the preset clamping angle is 0 degree, the first clamping part (321) and the second clamping part (322) can be meshed together.

3. The adjustable jaw angle biopsy forceps of claim 2, further comprising:

a second fixing portion (312) having a major arc shape and fixedly connected to one end of the second clamping portion (322);

the first fixing part (311) constructs a major arc space (302);

the second fixing part (312) can be placed in the major arc space (302) and hinged with the first fixing part (311) through a rotating shaft.

4. A biopsy forceps with adjustable jaw angle according to claim 3, characterized in that the second fixation part (312) is provided with a first threading hole (331) at one side of the second clamping part (322);

a second threading hole (332) is formed in one side of the second fixing part (312) with the largest major arc diameter;

the clamping traction rope (340) is wound and connected with a first wheel spool (341) and is respectively connected with the first threading hole (331) and the second threading hole (332), and the first wheel spool (341) is driven by the micro motor (342) to rotate positively and negatively.

5. The adjustable jaw angle biopsy forceps of claim 4, wherein the clamping pull wire (340) passes through a clamping threading hole (11) formed in the shaft body (10) and out of a distal end of the shaft body (10);

a rotatable first wheel spool (341) is arranged at the distal end of the rod body (10);

the miniature motor (342) is fixed on a bracket (343);

the bracket (343) is fixedly connected with the rod body (10).

6. Biopsy forceps with adjustable jaw angle according to any of claims 1-5, characterized in that the lateral deflection mechanism (20) comprises:

a pressing mechanism capable of pressing upper and lower ends of the rotating part (210);

the hold-down mechanism includes:

two groups of compression plates (202) are respectively connected with the first end of the rod body part (10) through elastic component parts (201);

in the locked state, the two sets of compacting plates (202) can be parallel;

in the unlocking state, the second ends of the two groups of pressing plates (202) incline away from the central line under the action of the elastic component parts;

a rotating space (203) is formed between the two groups of pressing plates (202), and the rotating part (210) is positioned in the rotating space (203).

7. The biopsy forceps of claim 6, wherein the upper and lower ends of the rotation part (210) are provided with first pressing structures (310), and the first pressing structures (310) are waved at the outer edge of the rotation part (210);

the second pressing structure (320), one side of the pressing plate (202) located in the rotating space (203) is provided with the second pressing structure (320), the shape of the second pressing structure (320) is the same as that of the first pressing structure, and the two pressing structures are matched with each other in a wavy mode.

8. The biopsy forceps of claim 7, wherein the pressing plate (202) is provided with a pressing shaft hole (333), and the center of the rotating part (210) is provided with a rotating shaft hole (323);

the pressing shaft hole (333) and the rotating shaft hole (323) have the same axis;

a rotary main shaft (304) can be arranged in the compression shaft hole (333) and the rotary shaft hole (323) in a penetrating way;

the radial first side of rotation portion (210) is connected with two parallel arrangement's threading portion, be provided with third through wires hole (330) on the threading portion, second haulage rope (362) can be worn to establish by third through wires hole (330).

9. The adjustable jaw angle biopsy forceps of claim 8, wherein the second end of the pivot spindle (304) extends through one of the compression plates (202) and is coupled to a pivot pin;

the first end of the rotating main shaft (304) penetrates out of the other pressing plate (202) and is connected with a pin (351), and the pin (351) is rotationally connected with an eccentric shaft of an eccentric wheel (352);

in the locking state, the major arc part of the eccentric wheel (352) is abutted against the upper surface of the adjacent pressing plate (202), and an operating rod (353) connected with the eccentric wheel (352) is parallel to the rod body (10);

the operating lever (353) is operable in a clockwise direction to be able to enter the unlock state, and the pin (351) is able to be partially retracted into the adjacent pressing shaft hole (333).

10. The biopsy forceps of claim 8, wherein the second pulling rope (362) is two and penetrates into two adjusting holes (363) formed in the rod body (10);

each adjusting hole (363) is communicated with an adjusting outlet (364), and the adjusting outlet is arranged in the radial direction of the rod body (10);

each second traction rope (362) can be threaded out of the adjustment outlet (364) and connected to a rope head (365).