CN212661875U - Epiglottis forceps - Google Patents

Abstract

Epiglottis forceps are auxiliary instruments used in clinical procedures to expose the glottis using a laryngoscope. The epiglottis forceps comprise a forceps leaf, a forceps rod, a movable handle and a fixed handle. The pull rod is flexibly connected with the movable handle through a spring and a nut, the fixed handle and the movable handle are both provided with locking ratchet buckles, the relative positions of the fixed handle and the movable handle can be locked, and the clamp leaves are continuously closed and keep certain tension after being locked. The epiglottis forceps are mainly characterized in that the clamping force for clamping the epiglottis by the forceps leaves can be adjusted, the clamping force when the forceps leaves are closed can be adjusted by adjusting the position of the nut, and irreversible damage to epiglottis mucosa and even cartilage due to overlarge clamping force during use is avoided. The epiglottis clamp has the other characteristic that the locking ratchet buckles on the fixed handle and the movable handle can be mutually meshed so as to lock the relative positions of the fixed handle and the movable handle, so that the clamp leaves can continuously maintain the clamping force after being locked until the locking ratchet buckles are unlocked.

Description

Epiglottis forceps

Technical Field

The utility model relates to an operating forceps used in the operation of a laryngoscope in the department of otolaryngology and the manufacturing method thereof.

Background

The support laryngoscope is the most common surgical instrument for otolaryngological department, and is mainly used for biopsy of laryngopharyngeal diseases, surgical excision of benign and malignant tumors and voice operation clinically. During operation of a laryngoscope, picking up the epiglottis to fully expose the glottis is the most critical step in the use of a laryngoscope. Under normal conditions, the supporting laryngoscope is sent into the oral cavity along the center of the incisors, the tongue root is slightly pressed upwards, the endoscope is slowly and inwards inserted, when the epiglottis is seen from the laryngoscope, after the free edge of the epiglottis is crossed, the epiglottis is picked up by the left hand with parallel upward force, the glottis can be exposed, and the ideal result is that the anterior combination and the lesion range of the vocal cord can be well exposed. However, clinically, some patients (such as cervical spondylosis, small jaw, short and obese neck, too long incisors, too high throat, etc.) are forced to stop the operation because they cannot pick up the epiglottis to expose the glottis and further cannot expose the lesion. The most cases that the epiglottis cannot be picked up and the glottis is fully exposed mean that the epiglottis is reversely folded and cannot be combined before exposure; or the epiglottis with dysplasia of epiglottis is too soft, the supporting laryngoscope can only excessively surpass the epiglottis to pick up the epiglottis, but only the rear end of the glottis can be exposed at the moment; or the epiglottis is short and transverse and in the infant shape, the laryngoscope cannot pass through the epiglottis at all to expose the glottis. In addition, in a series of processes that the supporting laryngoscope enters the oral cavity, crosses the tongue root and picks up the epiglottis, along with the deepening of the supporting laryngoscope and approaches the glottis, the supporting tension required by the supporting laryngoscope is increased rapidly, and particularly for patients with short glottis and mandible and too close distance between the larynx and the mandible, the rapid increase of the tension not only greatly increases the risks of surgical complications (tooth falling off, palatal arch injury and the like) but also is a common reason for insufficient exposure of the glottis and surgical failure. Aiming at various special conditions causing operation failure in the use of a laryngoscope, a pair of operating forceps special for clamping the epiglottis is designed, and when a patient with difficulty in glottic exposure is clinically encountered, the epiglottis is clamped and locked by the operating forceps, so that the laryngoscope is easier to expose the glottis.

Disclosure of Invention

The epiglottis clamp is designed according to the throat anatomy and the problems encountered by the laryngoscope in the practical clinical application. Firstly, the clamping force of the epiglottis forceps cannot be too large, the tissues of the epiglottis can be subjected to edema, hemorrhage and necrosis due to the too large clamping force, secondly, the clamping force of the epiglottis forceps can be adjusted so as to prevent the mucosa and cartilage of the epiglottis from being damaged due to the too large clamping force for epiglottis with different development degrees, namely different thicknesses, and the epiglottis can be loosened due to the too small clamping force; third, when performing the surgical operation in clinical application, the operator needs to use both hands to perform the surgical operation, so the epiglottis forceps must be able to provide the holding force by themselves after leaving the operator's hand control, so as to prevent the epiglottis from loosening and affecting the glottic exposure again after the epiglottis forceps leave the operator's hand control. In addition, in order to prevent the clamped epiglottis from loosening, the surfaces of the forceps leaves are designed with smooth and dense tooth marks which are smooth to avoid damaging the mucosa of the epiglottis.

The utility model discloses a solve above technical scheme that problem adopted is:

in order to achieve the above object, the epiglottis clamp comprises a clamp blade, a clamp rod, a fixed handle and a movable handle. A pull rod is arranged in the clamp rod, one end of the pull rod is connected with the clamp blade through a pin shaft, and the other end of the pull rod is in flexible connection with the movable handle through a spring and a nut. The fixed handle and the movable handle are both provided with locking ratchet buckles which are saw-toothed protrusions, and when the locking ratchet buckles are in mutual contact and occlusion, the relative positions of the fixed handle and the movable handle can be locked. The epiglottis forceps are mainly characterized in that the elastic force of a spring can be adjusted by rotating a nut before the epiglottis forceps are used, so that the clamping force when the forceps leaves are closed in use can be adjusted. The epiglottis forceps are further characterized in that locking ratchet buckles on the fixed handle and the movable handle can be mutually occluded and locked, so that the relative position relationship between the fixed handle and the movable handle is fixed, and the blade of the epiglottis forceps is continuously closed and keeps a certain clamping force after the epiglottis forceps are locked.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a view showing the structure of an epiglottis forceps

FIG. 2 is a partial enlarged view of the epiglottis grip control portion

Reference numerals:

1 clamp leaf, 2 clamp rod, 3 fixed handle, 4 pull rod, 5 spring, 6 nut, 7 handle, screw, 8 movable handle, 9 locking ratchet buckle and 10 spinous process

Detailed Description

The epiglottis clamp leaf 1 is divided into an upper leaf and a lower leaf, and is connected with a pull rod 4 through a pin shaft, and the pull rod 4 is positioned in the clamp rod 2. The clamp rod 2 is fixed with the fixed handle 3, and the fixed handle 3 is connected with the movable handle 8 through a handle screw 7. The tail end of the pull rod 4 is sleeved with a spring 5, the spring 5 is fixed on a movable handle 8, and the tail end of the pull rod 4 is provided with threads and is matched with a nut 6 to adjust the elasticity of the spring 5. The surfaces of the fixed handle 3 and the movable handle 8 are provided with locking ratchet buckles 9, so that the relative positions of the fixed handle 3 and the movable handle 8 can be locked when the epiglottis is clamped. Because there is no pin connection between the back end of the pull rod and the movable handle 8, there is a spinous process 10 between the fixed handle 3 and the movable handle 8 in the pull rod 4, so that the pull rod 4 can be pushed forward to open the forceps leaf 1 when the movable handle 8 moves forward. When the movable handle 8 moves backwards, the clamp leaves are closed through the blocking of the spring 5 and the nut 6. The elastic force of the spring 5 and thus the clamping force when the jaw is closed can be adjusted by rotating the nut 6.

During a clinical procedure, the epiglottis is first exposed through the laryngoscope. The elastic force of the spring 5 is increased or decreased according to the thickness of the epiglottis, and the clamping force of the epiglottis forceps leaf 1 when closed is adjusted. After the clamping force of the epiglottis forceps is adjusted, the epiglottis forceps are closed through a manual control fixed handle 3 and a manual control movable handle 8 under direct vision, and a pull rod 4 moves to pull a forceps leaf 1 to close and clamp the epiglottis; when two-hand operation is required, the relative positions of the fixed handle 3 and the movable handle 8 are locked through the locking ratchet buckle 9, so that the epiglottis clamp blade 1 is still closed after being locked and continuously keeps a certain clamping force to clamp the epiglottis. The clamping force of the clamp leaf 1 kept closed at this time is the elastic force of the adjusting spring 5 before use. Because the clamping force of the clamp leaf 1 closing is adjusted according to the development condition of the epiglottis before use, the damage of mucosa and even cartilage caused by clamping epiglottis tissues by the clamp leaf 1 can be reduced to the maximum extent. The laryngoscope makes it easier to expose the glottis since the epiglottis is already held in place by the epiglottis clamp. The epiglottis forceps make it easier to expose the operative area of the laryngoscope and greatly reduce the tension required to expose the glottis.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions thought by the inventive work within the technical scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (3)

1. Epiglottis clamp includes pincers leaf, tong pole, moves handle and decides handle, its characterized in that: the pull rod and the movable handle form flexible connection through the spring and the nut, the clamping force when the clamp leaves are closed can be adjusted through adjusting the elasticity of the spring by rotating the nut, and thus the damage to epiglottis mucosa and even cartilage caused by overlarge clamping force during use can be avoided, and the epiglottis is loosened during clamping caused by undersize clamping force.

2. The epiglottis forceps of claim 1, wherein: the surfaces of the fixed handle and the movable handle are provided with locking ratchet buckles, the locking ratchet buckles are mutually contacted and meshed to lock the relative positions of the fixed handle and the movable handle, and the clamp leaves are still closed after being locked and continuously keep the clamping force until the locking ratchet buckles are loosened.

3. The epiglottis forceps of claim 1, wherein: the smooth and dense tooth marks are arranged on the surfaces of the clamp leaves, so that the epiglottis clamp can clamp the epiglottis with the minimum clamping force to prevent the epiglottis from loosening.

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