CN217960164U

CN217960164U - Thermal biopsy forceps with needle knife

Info

Publication number: CN217960164U
Application number: CN202220237151.9U
Authority: CN
Inventors: 秦文燕; 彭文平
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-12-06
Anticipated expiration: 2032-01-27

Abstract

The utility model provides a hot biopsy forceps with needle sword belongs to medical instrument technical field, include: a base provided with a sleeve having an opening; the number of the forceps heads is two, and the two forceps heads are hinged with the sleeve; the needle knife comprises a knife head and a knife handle, the knife head is in linkage connection with the knife handle, the knife handle is arranged in the sleeve and can drive the knife head to stretch out of the opening or retract from the opening into the sleeve, and the knife head is positioned between the two tong heads. The utility model has the advantages that: the user can control the working of the binding clip of the thermal biopsy forceps and the working of the tool bit of the needle knife, the tool bit is driven by the tool handle to stretch and contract, and the tool handle is clamped by the binding clip to realize the quick switching of surgical instruments, so that the problem that the needle knife and the thermal biopsy forceps are slower to replace is solved.

Description

Thermal biopsy forceps with needle knife

Technical Field

The utility model belongs to the technical field of medical instrument, a hot biopsy forceps with needle sword is related to.

Background

The mucosa dissection operation under the endoscope is the latest endoscope operation at present, is an operation mode for treating large-scale mucosa lesion, can effectively avoid surgical operation, and the mucosa dissection operation under the endoscope is an extremely fine operation process, the endoscope lens is basically attached to the operation wound surface, the operation space is extremely narrow, the whole operation process needs to frequently replace surgical instruments such as a mucosa incision knife, a thermal hemostatic forceps and the like, the incision knife and the thermal biopsy forceps have the highest use frequency and need to be used repeatedly, hundreds of times of reciprocating insertion can be repeated in a single operation, the insertion in each time needs 20 seconds to 30 seconds on average, and the operation efficiency is seriously influenced.

For example, an application number is 20192060929211.3's utility model patent, provides a hot biopsy pincers, including operating handle, pincers body, the binding clip that sets gradually, the pincers body is provided with the cavity along its length extending direction, it has the steel wire to alternate in the cavity, the one end of steel wire connect in operating handle, the other end of steel wire connect in the binding clip, the pincers body includes a plurality of hollow tubes, arbitrary adjacent two be connected with the transition pipe between the hollow tube, the periphery wall of transition pipe encircles and is provided with the gasbag, the surface of transition pipe is provided with the blow vent, it has the trachea to alternate in the transition pipe, tracheal one end is passed through the blow vent with the gasbag communicates each other, the tracheal other end is worn out the pincers body is close to operating handle's one end, the tracheal other end is provided with the sealing member.

In summary, although some prior art solutions reduce the feeding time of the thermal biopsy forceps, the needle knife still needs a long time to be fed, so that the problem that the needle knife and the thermal biopsy forceps are replaced slowly exists, and the improvement space is large.

Disclosure of Invention

The utility model aims at solving the problems in the prior art and providing a thermal biopsy forceps with a needle knife.

The purpose of the utility model can be realized by the following technical proposal: a thermal biopsy forceps having a needle knife, comprising:

a base provided with a sleeve having an opening;

the number of the forceps heads is two, and the two forceps heads are hinged with the sleeve;

the needle knife comprises a knife head and a knife handle, the knife head is in linkage connection with the knife handle, the knife handle is arranged in the sleeve and can drive the knife head to stretch out of the opening or retract from the opening into the sleeve, and the knife head is located between the two tong heads.

Preferably, the tool further comprises a moving rod, the base is provided with an adjusting handle, the moving rod is movably connected with the base, the tool handle is connected with the moving rod, and the adjusting handle is detachably connected with the moving rod so as to limit the moving rod to move.

Preferably, the movable rod is provided with at least two limiting holes which are axially arranged along the movable rod, and the adjusting handle can be arranged in any limiting hole in a penetrating manner so as to adjust the extending length of the movable rod.

Preferably, adjust the handle cover and be equipped with reset spring, reset spring's both ends respectively with adjust the handle and the base is contradicted and is connected.

Preferably, the moving rod is further provided with a limiting block which is used for being in interference connection with the base so as to limit the moving stroke of the moving rod.

Preferably, the base is further provided with an operating handle for controlling the forceps head.

Preferably, the base is further provided with an electric connector, the tool bit and the binding clip are both electrically connected to the electric connector, and the surfaces of the tool bit and the binding clip are both provided with an insulating layer.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the user can control the working of the binding clip of the thermal biopsy forceps and the working of the tool bit of the needle knife, the tool bit is driven by the tool handle to stretch and contract, and the tool handle is clamped by the binding clip to realize the quick switching of surgical instruments, so that the problem that the needle knife and the thermal biopsy forceps are changed slowly is solved.

2. The adjusting handle is detachably connected with the moving rod so as to limit the moving rod to move, the adjusting handle comprises a handle and a plug pin, the plug pin is fixedly connected with the handle, and a user can insert the plug pin into the limiting hole or separate the plug pin from the limiting hole by holding the handle to move.

3. The operating condition is different when adjusting the handle and being located different spacing holes, and the user can use the tool bit to carry out work when adjusting the handle and inserting first spacing hole, and the user can use the binding clip to carry out work when adjusting the handle and inserting the spacing hole of second.

4. Adjusting handle is provided with the bulge loop, and reset spring's both ends are contradicted with the inner wall of bulge loop and base respectively and are connected, and reset spring can promote the bulge loop and drive adjusting handle and remove towards spacing punch combination to play fine reset action.

5. The stopper can be contradicted with the base and be connected thereby the removal stroke of restriction carriage release lever, prevents that the tool bit from falling into and causing unexpected intraoperative hemorrhage and unnecessary injury to the patient under the condition that the carriage release lever does not have the chucking.

Drawings

Fig. 1 is a front view of the thermal biopsy forceps with needle-knife of the present invention.

Fig. 2 is a schematic view of the state that the adjusting handle is inserted into the second limiting hole.

Fig. 3 is a schematic diagram of the state of the adjusting handle separated from the second limiting hole.

Fig. 4 is a schematic view of the working state of the needle knife of the present invention.

Fig. 5 is a schematic view of the working state of the thermal biopsy forceps of the present invention.

In the figure, 100, base; 110. a sleeve; 120. adjusting the handle; 121. a return spring; 130. an operating handle; 140. an energized joint; 200. a binding clip; 300. a needle knife; 310. a cutter head; 320. a knife handle; 400. a travel bar; 410. limiting hole groups; 411. a first limit hole; 412. a second limiting hole; 420. and a limiting block.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

As shown in fig. 1-5, a thermal biopsy forceps having a needle blade 300 includes: a base 100, a forceps head 200, and a needle-knife 300.

The base 100 is provided with a sleeve 110, the sleeve 110 has an opening (not shown), the sleeve 110 is embedded with a wire for controlling the binding clip 200, and the needle knife 300 can extend out of the opening.

The number of the forceps heads 200 is two, the two forceps heads 200 are hinged to the sleeve 110, the forceps heads 200 are provided with hinged shafts, the forceps heads 200 are hinged to the sleeve 110 through the hinged shafts, and the forceps heads 200 can be pulled to move through metal wires.

The cutting head 310 is in linkage connection with the handle 320, the handle 320 is arranged in the sleeve 110 and can drive the cutting head 310 to extend out of the opening or retract into the sleeve 110 from the opening, the cutting head 310 is located between the two forceps heads 200, and the two forceps heads 200 can clamp the handle 320 and expose the cutting head 310.

In this embodiment, the user can control the forceps head 200 of the thermal biopsy forceps and the cutting head 310 of the needle knife 300 to work, and the knife handle 320 drives the cutting head 310 to extend and retract and the forceps head 200 clamps the knife handle 320 to realize the rapid switching of the surgical instrument, thereby overcoming the problem that the needle knife 300 and the thermal biopsy forceps are slowly replaced.

As shown in fig. 1, 2 and 3, in addition to the above embodiment, the present invention further includes a moving rod 400, the base 100 is provided with an adjusting handle 120, the moving rod 400 is movably connected to the base 100, the tool shank 320 is connected to the moving rod 400, and the adjusting handle 120 is detachably connected to the moving rod 400 so as to limit the movement of the moving rod 400.

In this embodiment, the adjusting handle 120 is detachably connected to the moving rod 400 to limit the moving rod 400 from moving, the adjusting handle 120 includes a handle and a plug pin fixedly connected to the handle, and the user can insert the plug pin into the limiting hole or separate the plug pin from the limiting hole by holding the handle to move.

As shown in fig. 1, 2 and 3, on the basis of the above embodiment, the moving rod 400 is provided with at least two limiting holes arranged along the axial direction of the moving rod, and the adjusting handle 120 can be inserted into any one of the limiting holes to adjust the extending length of the moving rod 400.

Specifically, at least two limiting holes arranged along the axial direction thereof are collectively referred to as a limiting hole set 410, the limiting hole set 410 includes a first limiting hole 411 and a second limiting hole 412, the tool bit 310 extends out of the sleeve 110 when the adjustment handle 120 is inserted into the first limiting hole 411, and the tool bit 310 is located in the sleeve 110 when the adjustment handle 120 is inserted into the second limiting hole 412.

In this embodiment, the adjustment handle 120 is located in different position-limiting holes, and the operation state is different, so that the user can use the cutter head 310 to operate when the adjustment handle 120 is inserted into the first position-limiting hole 411, and can use the pliers head 200 to operate when the adjustment handle 120 is inserted into the second position-limiting hole 412.

Preferably, in order to adjust the length of the cutting head 310 extending out of the sleeve 110, the limiting hole set 410 further includes other limiting holes such as a third limiting hole, which are sequentially arranged from the second limiting hole 412 toward the first limiting hole 411.

As shown in fig. 1, 2, and 3, in the above embodiment, the adjusting handle 120 is sleeved with a return spring 121, and two ends of the return spring 121 are respectively in interference connection with the adjusting handle 120 and the base 100.

In this embodiment, the adjusting handle 120 is provided with a protruding ring, two ends of the return spring 121 are respectively connected with the protruding ring and the inner wall of the base 100 in an abutting manner, and the return spring 121 can push the protruding ring to drive the adjusting handle 120 to move towards the limiting hole group 410, so as to achieve a good resetting effect.

As shown in fig. 1, 2, and 3, in addition to the above embodiments, the moving rod 400 is further provided with a stopper 420 for interference-connecting with the base 100 to limit the moving stroke of the moving rod 400.

In this embodiment, the stopper 420 may be in interference connection with the base 100 to limit the moving stroke of the moving bar 400, thereby preventing the cutter head 310 from falling in without jamming the moving bar 400 and causing unexpected intraoperative bleeding and unnecessary injury to the patient.

As shown in fig. 1, in addition to the above-mentioned embodiment, the base 100 is provided with the operating handle 130 for controlling the binding clip 200, in this embodiment, the operating handle 130 is used for controlling the binding clip 200 to work, specifically, the operating handle 130 is actually composed of two handles, and the two handles respectively control the two binding clips 200.

As shown in fig. 1, 4 and 5, in addition to the above embodiment, the base 100 is further provided with an electrical connector 140, the tool bit 310 and the bit 200 are both electrically connected to the electrical connector 140, and the surfaces of the tool bit 310 and the bit 200 are both provided with an insulating layer (not shown).

In the present embodiment, the cutting head 310 and the forceps 200 are both conductive metal members, and the insulating layer provided on the surfaces of the cutting head 310 and the forceps 200 can effectively prevent the patient from getting an electric shock.

As shown in fig. 1 to 5, in general operation, when the needle knife 300 is required to be used, the needle knife 300 can be used by moving the moving rod 400 and adjusting the adjusting knob 120 to insert into the second limiting hole 412, so that the knife head 310 extends out of the opening of the sleeve 110, and then controlling the two forceps heads 200 to clamp the knife handle 320 and expose the knife head 310 by operating the handle 130.

When the thermal biopsy forceps are required to be used, the movable rod 400 is moved and the adjustment knob 120 is inserted into the first limiting hole 411, the cutter head 310 is limited in the sleeve 110, and then the two forceps heads 200 are controlled to work by operating the handle 130.

Claims

1. A thermal biopsy forceps having a needle-knife, comprising:

a base provided with a sleeve having an opening;

2. The thermal biopsy forceps having a needle knife according to claim 1, wherein: the tool comprises a base and is characterized by further comprising a moving rod, the base is provided with an adjusting handle, the moving rod is movably connected with the base, the tool handle is connected with the moving rod, and the adjusting handle is detachably connected with the moving rod so as to limit the moving rod to move.

3. The thermal biopsy forceps having a needle knife according to claim 2, wherein: the movable rod is provided with at least two limiting holes which are arranged along the axial direction of the movable rod, and the adjusting handle can be arranged in any limiting hole in a penetrating manner so as to adjust the extending length of the movable rod.

4. A thermal biopsy forceps having a needle knife as claimed in claim 3, wherein: adjust the handle cover and be equipped with reset spring, reset spring's both ends respectively with adjust the handle and the base is contradicted and is connected.

5. The thermal biopsy forceps with a needle knife according to claim 2, wherein: the movable rod is further provided with a limiting block which is used for being in interference connection with the base so as to limit the moving stroke of the movable rod.

6. The thermal biopsy forceps having a needle knife according to claim 1, wherein: the base is further provided with an operating handle used for controlling the forceps head.

7. The thermal biopsy forceps having a needle-knife according to claim 6, wherein: the base is further provided with an electrified connector, the tool bit and the clamp head are electrically connected with the electrified connector, and insulating layers are arranged on the surfaces of the tool bit and the clamp head.