CN219250300U

CN219250300U - Needle holding forceps

Info

Publication number: CN219250300U
Application number: CN202320249499.4U
Authority: CN
Inventors: 沈行
Original assignee: Bonnie Medical Technology Changzhou Co ltd
Current assignee: Bonnie Medical Technology Changzhou Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-27
Anticipated expiration: 2033-02-17

Abstract

The utility model provides needle holding forceps which comprise a fixed handle and a hinged movable handle, wherein the movable handle is rotated to drive a pull rod to stretch and retract so as to realize opening or closing of a forceps head, and a spring is arranged in the fixed handle and used for resetting the pull rod; the fixed handle and the movable handle are also clamped by the clamping teeth, so that the position of the movable handle is locked. The spring is hidden in the fixed handle, so that the space between the fixed handle and the movable handle is released, no part is arranged in the area between the fixed handle and the movable handle, the phenomenon of instrument collision during operation is avoided, and the normal operation of the operation is ensured. Through the joint of card tooth, the position of locking movable handle to under the circumstances of release both hands, the binding clip can also keep closed condition, not only make the operation more convenient, still improved operation efficiency.

Description

Needle holding forceps

Technical Field

The utility model relates to the technical field of medical appliances, in particular to needle holding forceps.

Background

Needle holders are mainly used for suturing wounds of patients.

Chinese patent CN109223079a discloses a micro needle holder comprising a rear handle and a front handle hinged to the rear handle. The rear handle is provided with a rear spring piece, the front handle is provided with a front spring piece, and the outer ends of the front spring piece and the rear spring piece are hinged. The front handle and the rear handle are held and driven to be close, so that the driving rod moves, and the front spring piece and the rear spring piece are used for driving the front handle and the rear handle to be open, so that the driving rod is reset.

Because the front and rear spring pieces are positioned outside the front and rear handles, not only space is occupied, but also the phenomenon that instruments collide with the front and rear spring pieces easily occurs during operation, thereby affecting the normal operation.

Therefore, how to overcome the above-mentioned drawbacks is a problem to be solved by the person skilled in the art.

Disclosure of Invention

In order to solve the technical problems in the background technology, the utility model discloses needle holding forceps.

The utility model provides needle holding forceps which comprise a fixed handle and a hinged movable handle, wherein the movable handle is rotated to drive a pull rod to stretch and retract so as to realize opening or closing of a forceps head, and a spring is arranged in the fixed handle and used for resetting the pull rod;

the fixed handle and the movable handle are also clamped by the clamping teeth, so that the position of the movable handle is locked.

The spring is hidden in the fixed handle, so that the space between the fixed handle and the movable handle is released, no part is arranged in the area between the fixed handle and the movable handle, the phenomenon of instrument collision during operation is avoided, and the normal operation of the operation is ensured. Through the joint of card tooth, the position of locking movable handle to under the circumstances of release both hands, the binding clip can also keep closed condition, not only make the operation more convenient, still improved operation efficiency.

The movable handle drives the telescopic concrete structure of pull rod to be: the fixed handle is internally provided with a driving block which is in sliding connection, the front end of the driving block is connected with a pull rod, and the rear end of the driving block is connected with a spring; the front end of the connecting rod is hinged with the movable handle, and the rear end is hinged with the driving block. When the movable handle approaches the fixed handle, the driving connecting rod moves backwards and drives the driving block to move backwards, and the spring is compressed; when the movable handle is loosened, the spring is reset, and the restoring force drives the movable handle and the driving block to reset.

In order to realize the quick connection of the pull rod and the driving block and improve the assembly efficiency of the utility model, the utility model is further designed as follows: the pull rod is clamped with the driving block, so that quick assembly and disassembly are realized. The specific structure is as follows: the front end of the driving block is provided with a clamping groove which is radially arranged, and the rear end of the pull rod is provided with a ball head; the ball head is inserted into the clamping groove to realize clamping.

The ball head is arranged at the tail end of the pull rod, the processing difficulty is high, the process is complex, and the cost is high, so that the problem is further improved and solved, and particularly, the rear end of the pull rod is connected with the fixing rod in a threaded manner, and the ball head is arranged at the rear end of the fixing rod.

The specific structure of the latch is as follows: the fixed handle is fixed with a first toothed plate, and a plurality of first clamping teeth are arranged on the first toothed plate; the movable handle is hinged with a second toothed plate, and a plurality of second clamping teeth are arranged on the second toothed plate; the first clamping teeth are clamped or separated from the second clamping teeth by rotating the second toothed plate.

The handle is both to be held to the singlehanded, still needs the simultaneous drive second pinion rack to rotate, and the degree of difficulty is higher, based on this, further design is: the movable handle is provided with an elastic sheet, and the second toothed plate is connected with the elastic sheet; when the second toothed plate is pressed to close to the movable handle, the first clamping teeth are separated from the second clamping teeth, and the elastic sheet deforms; when the second toothed plate is loosened, the elastic sheet resets and drives the second clamping teeth to be clamped with the first clamping teeth. When the movable handle is held and driven to be close to the fixed handle, the index finger can be used for driving the second toothed plate to rotate at the same time, so that the first clamping tooth is separated from the second clamping tooth; the index finger loosens the second pinion rack, can make the second pinion rack reset, realizes first card tooth joint second latch, realizes movable handle position locking, and easy operation is convenient.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a top view of the present utility model;

FIG. 4 is a cross-sectional view of E-E of FIG. 3;

fig. 5 is an enlarged view at B in fig. 4;

FIG. 6 is an enlarged view at C in FIG. 4;

FIG. 7 is a top view of a hidden portion of the present utility model with the ball and detent in a disengaged condition;

fig. 8 is an enlarged view of D in fig. 7;

in the figure: 1. a fixed handle; 2. a movable handle; 3. a pull rod; 4. a clamp head; 5. a spring; 6. a driving block; 7. a connecting rod; 8. ball head; 9. a first toothed plate; 10. a first latch; 11. a second toothed plate; 12. a second latch; 13. a spring plate; 14. a fixed rod; 15. a clamping groove.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

Embodiment one:

as shown in fig. 1 and 3, the utility model is a needle holder, comprising a fixed handle 1, a hinged movable handle 2 and a binding clip 4. The front end is set at the clamp head 4, and the rear end is set at the handle.

As shown in fig. 4, a mounting groove is formed in the inner side of the fixed handle 1, a driving block 6 and a spring 5 are mounted in the mounting groove, the front end of the spring 5 is connected with the driving block 6, and the rear end is connected with the groove wall of the mounting groove, so that the driving block 6 is elastically connected. The front end of the driving block 6 is connected with the pull rod 3.

As shown in fig. 2 and 4, a pull rod 3 is also connected between the movable handle 2 and the fixed handle 1. The pull rod 3 is obliquely arranged, the front end of the pull rod is hinged with the movable handle 2, and the rear end of the pull rod is hinged with the driving block 6. When the movable handle 2 is closed to the fixed handle 1, the driving connecting rod 7 moves backwards and drives the driving block 6 to move backwards, the clamp head 4 is closed, and the spring 5 is compressed; when the movable handle 2 is loosened, the spring 5 is reset, the restoring force drives the movable handle 2 and the driving block 6 to reset, and the clamp head 4 is opened.

As shown in fig. 4 and 6, the fixed handle 1 is mounted with a first toothed plate 9. The first toothed plate 9 is close to the hinged position of the movable handle 2, the upper end of the first toothed plate is fixedly connected with the fixed handle 1, the lower end of the first toothed plate is bent towards the hinged position of the movable handle 2, and a plurality of first clamping teeth 10 which are uniformly distributed are arranged on the outer side surface of the bent part. The movable handle 2 is hinged with a second toothed plate 11 at a position close to the hinge joint, and a plurality of second clamping teeth 12 corresponding to the first clamping teeth 10 are arranged on the second toothed plate 11; by rotating the second toothed plate 11, the first latch 10 is engaged with or disengaged from the second latch 12. When the first latch 10 is engaged with the second latch 12, the movable handle 2 is locked in position.

The spring 5 is hidden in the fixed handle 1, so that the space between the fixed handle 1 and the movable handle 2 is released, no part is arranged in the area between the holding parts of the fixed handle 1 and the movable handle 2, the phenomenon of instrument collision during operation is avoided, and the normal operation is ensured. Through the clamping tooth joint, the position of the movable handle 2 is locked, so that the clamp head 4 can also be kept in a closed state under the condition of releasing both hands, thereby not only facilitating the operation, but also improving the operation efficiency.

Embodiment two:

the difference from the first embodiment is that: as shown in fig. 4, 7 and 8, the front end of the driving block 6 is provided with radially arranged clamping grooves 15, the clamping grooves 15 are circular arc-shaped, and the width of the opening end is smaller than the diameter of the clamping grooves 15. The rear end of the pull rod 3 is provided with a ball head 8; the ball head 8 is inserted into the clamping groove 15 from the end part of the clamping groove 15 to realize clamping. Thus, the quick installation of the driving block 6 and the pull rod 3 is realized, and the assembly efficiency of the utility model is improved.

Embodiment III:

compared with the embodiment, the difference is that: as shown in fig. 5, the rear end of the pull rod 3 is screwed with a fixing rod 14, and the ball head 8 is disposed at the rear end of the fixing rod 14. Therefore, not only can the ball head 8 be detachably arranged with the pull rod 3, but also the structure of the pull rod 3 is simplified, and the cost is reduced.

Embodiment four:

the difference from the first embodiment is that: as shown in fig. 6, the inner side surface of the movable handle 2 is provided with a groove, a spring piece 13 is installed in the groove, one end of the spring piece is fixed by a bolt, and the other end of the spring piece is provided with a folded plate which is bent towards the inside of the movable handle 2. The folded plate is fixedly connected with the second toothed plate 11.

When the second toothed plate 11 is pressed to be close to the movable handle 2, the first clamping teeth 10 are separated from the second clamping teeth 12, and the elastic sheet 13 is deformed; when the second toothed plate 11 is loosened, the elastic sheet 13 resets and drives the second latch 12 to be clamped with the first latch 10. Thus, when the movable handle 2 is held and driven to approach the fixed handle 1, the index finger can be used to press the second toothed plate 11 at the same time, so that the first latch 10 is separated from the second latch 12; the index finger loosens second pinion rack 11, can make second pinion rack 11 reset, realizes first latch 10 joint second latch 12, realizes movable handle 2 position locking, easy operation is convenient.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. Needle holder, including fixed handle (1) and articulated movable handle (2), through rotating movable handle (2), drive pull rod (3) are flexible, realize binding clip (4) opening or closing, its characterized in that:

a spring (5) is arranged in the fixed handle (1) and used for resetting the pull rod (3);

the fixed handle (1) and the movable handle (2) are also clamped through clamping teeth, so that the position of the movable handle (2) is locked.

2. A needle holder according to claim 1, wherein: a driving block (6) which is connected in a sliding way is arranged in the fixed handle (1), the front end of the driving block is connected with the pull rod (3), and the rear end of the driving block is connected with the spring (5);

the front end of the connecting rod (7) is hinged with the movable handle (2), and the rear end is hinged with the driving block (6).

3. A needle holder as claimed in claim 2, wherein: the pull rod (3) is clamped with the driving block (6) to realize quick assembly and disassembly.

4. A needle holder according to claim 3, wherein: the front end of the driving block (6) is provided with a clamping groove (15) which is radially arranged, and the rear end of the pull rod (3) is provided with a ball head (8); the ball head (8) is inserted into the clamping groove (15) to realize clamping.

5. A needle holder as defined in claim 4, wherein: the rear end of the pull rod (3) is connected with a fixing rod (14) in a threaded mode, and the ball head (8) is arranged at the rear end of the fixing rod (14).

6. A needle holder according to claim 1, wherein: a first toothed plate (9) is fixed on the fixed handle (1), and a plurality of first clamping teeth (10) are arranged on the first toothed plate (9);

a second toothed plate (11) is hinged on the movable handle (2), and a plurality of second clamping teeth (12) are arranged on the second toothed plate (11);

and the first latch (10) is clamped or separated from the second latch (12) by rotating the second toothed plate (11).

7. A needle holder as defined in claim 6, wherein: an elastic sheet (13) is arranged on the movable handle (2), and the second toothed plate (11) is connected with the elastic sheet (13);

when the second toothed plate (11) is gripped, the first latch (10) is separated from the second latch (12), and the elastic sheet (13) is deformed;

when the second toothed plate (11) is loosened, the elastic sheet (13) resets and drives the second latch (12) to be clamped with the first latch (10).