Filling device for filling material for ear endoscopic surgery

Abstract

The utility model discloses a filling material filler for ear endoscopic surgery. The filling material filler comprises a filling cylinder, a filling tube, a push rod, a piston and a holding rod, the filling pipe is detachably mounted at the head end of the filling cylinder; the filling pipe has plasticity; a piston is movably mounted in the filling cylinder and connected with one end of a push rod, and the other end of the push rod extends out of the filling cylinder; the holding rod is connected to the tail end of the filling cylinder and is perpendicular to the filling cylinder; the filling tube at the head end of the filling device has plasticity and can be plasticized according to the ear canal and the in-ear condition, so that the filling tube conforms to the in-ear structure, and a mastoid cavity or an upper tympanic cavity is smoothly filled; besides, the bone cement filling cylinder is provided with an auxiliary holding rod, and according to the characteristic that bone cement has viscosity, the bone cement can be better pushed out through the auxiliary holding rod; for the injection part, an injection force control constant-speed structure is further arranged, and constant-speed injection can be kept.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a filling material filler for ear endoscopic surgery. Background Art

[0002] Opening the mastoid under otoscope is a very common method in middle ear mastoid surgery. After the lesions are removed, a large cavity is often left. During the recovery process after the operation, these mastoid cavities need a long time to epithelialize, and at the same time, they need to match a larger ear canal opening. If the ear canal opening is not large enough, on the one hand, it will affect the epithelialization process, resulting in a long-term inability to dry the ears, or even infection; causing the patient to undergo a second operation; on the other hand, a small ear canal opening will also affect the postoperative cleaning of the large mastoid cavity; therefore, opening the mastoid cavity and performing concha molding surgery at the same time is a conventional treatment method for otologists in the past; in order to shorten the postoperative recovery time, avoid a larger mastoid cavity and ear canal opening, and meet the needs of patients after mastoid surgery to wear hearing aids; while completely removing the lesions, bone powder is used to fill the mastoid cavity and epitympanic cavity;

[0003] The filling material currently used is ear cartilage, but ear cartilage is an autologous tissue material. After filling, it will be gradually absorbed by the human body, causing the cavity to collapse. Therefore, the inventor uses bone cement material to fill the mastoid cavity and epitympanic cavity after surgery. The cavity can always be kept full, and the bone cement will not be absorbed by the human body. It replaces ear cartilage and has a good effect.

[0004] Due to the narrow ear canal, there are no dedicated tools for filling the mastoid cavity and epitympanic cavity. Currently, bone cement is injected using a device modified from a syringe. Since the head of the syringe is short, a suitable hose needs to be found for connection before injection. In addition, since bone cement itself is a viscous material, it is difficult to push it out of the syringe during injection, and the injection rate is uneven, which can easily lead to different injection amounts. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a filling material filler for ear endoscopic surgery. The filling tube at the head end of the filler has plasticity and can be plasticized according to the ear canal and the conditions in the ear, so that it conforms to the structure in the ear and smoothly fills the mastoid cavity or the epitympanic cavity. In addition, the bone cement filling tube is provided with an auxiliary holding rod. In view of the sticky characteristic of bone cement, the bone cement can be better pushed out by leveraging the auxiliary holding rod. For the pushing part, a pushing force control uniform speed structure is also provided, so that the pushing speed can be maintained.

[0006] In order to achieve the above technical objectives, the utility model is implemented through the following technical solutions:

[0007] A filling material filler for ear endoscopic surgery, comprising: a filling cylinder, a filling tube, a push rod, a piston, and a holding rod;

[0008] The filling tube is detachably mounted at the head end of the filling tube; the filling tube is plastic; a piston is movably mounted in the filling tube, the piston is connected to one end of a push rod, and the other end of the push rod extends out of the filling tube; a holding rod is connected to the rear end of the filling tube and is perpendicular to the filling tube;

[0009] Preferably, the filling tube is provided with a feeding port near the head end, so as to facilitate timely replenishment of bone cement during use;

[0010] Preferably, a spring is connected between the rear end of the piston and the rear end of the filling cylinder; due to the buffering effect of the spring, the injection force can be assisted in correcting the injection force during the injection process to avoid excessive injection force and uneven injection.

[0011] Preferably, the holding rod is vertically installed at the tail end of the filling cylinder in a movable manner. The specific movable installation structure is: an adjustment rail is connected to the filling cylinder, and the bottom end of the holding rod is movably installed in the adjustment rail; a locking knob is installed on the adjustment rail, and the locking knob can lock and fix the holding rod;

[0012] Preferably, the filling tube is divided into three layers, from outside to inside: a silicone layer, a shaping layer, and a silicone layer;

[0013] Preferably, the shaping layer is made of aluminum strip material;

[0014] Preferably, a seepage hole is provided on the side wall of the filling tube head end, and the direction of the seepage hole is inclined at 60°.

[0015] The beneficial effects of the utility model are:

[0016] Compared with the simple injection operation using a syringe, the filler provided by the utility model for ear endoscope surgery has a slender filling tube with plasticity, which can adapt to the structure in the ear canal and more accurately fill the bone cement into the mastoid cavity and the epitympanic cavity.

[0017] In addition, the utility model is provided with a holding rod on the filling tube, and the holding rod is held by hand, and then the thumb is used for pushing. The holding rod can be used as a force support point to push out the bone cement more easily, and it can also be operated with one hand;

[0018] A spring is connected between the piston and the bottom surface of the filling cylinder. Through the buffering auxiliary effect of the spring, the thrust can be balanced to avoid excessive thrust causing uneven bone cement discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the filling tube structure layer of the utility model;

[0022] Figure 3 This is a schematic diagram of the material seepage hole of the filling tube of the utility model;

[0023] Figure 4 This is a schematic diagram of the movable installation structure of the holding rod of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1-filling cylinder, 101-feeding port, 2-filling tube, 201-silicone layer, 202-shaping layer, 203-seepage hole, 3-push rod, 301-spring, 4-piston, 5-holding rod, 501-adjusting rail, 502-locking knob. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] A filling material filler for ear endoscopic surgery, comprising: a filling cylinder 1, a filling tube 2, a push rod 3, a piston 4, and a holding rod 5;

[0029] The filling tube 2 is detachably installed at the head end of the filling tube 1; the filling tube 2 is plastic; the shape of the filling tube 2 is adjusted according to the contour of the structure in the ear canal to make it adapt to the structure in the ear, and the mastoid cavity and the epitympanic cavity can be accurately filled with bone cement; a piston 4 is movably installed in the filling tube 1, the piston 4 is connected to one end of the push rod 3, and the other end of the push rod 3 extends out of the filling tube 1; a holding rod 5 is connected at the rear end of the filling tube 1 and perpendicular to the filling tube 1; the holding rod 5 can be used as a force support point, which saves more effort when injecting bone cement with higher viscosity.

[0030] Example 2

[0031] A filling material filler for ear endoscopic surgery, comprising: a filling cylinder 1, a filling tube 2, a push rod 3, a piston 4, and a holding rod 5;

[0032] The filling tube 2 is detachably installed at the head end of the filling tube 1; the filling tube 2 is plastic; the shape of the filling tube 2 is adjusted according to the contour of the structure in the ear canal to adapt it to the structure in the ear, and the mastoid cavity and epitympanic cavity can be accurately filled with bone cement; a piston 4 is movably installed in the filling tube 1, and the piston 4 is connected to one end of the push rod 3, and the other end of the push rod 3 extends out of the filling tube 1; a holding rod 5 is connected at the rear end of the filling tube 1 and perpendicular to the filling tube 1; the holding rod 5 can be used as a force support point, which is more labor-saving when injecting bone cement with high viscosity. A feeding port 101 is opened near the head end of the filling tube 1; it is convenient for timely replenishment of bone cement during use;

[0033] A spring 301 is connected between the rear end of the piston 4 and the rear end of the filling cylinder 1; due to the buffering effect of the spring 301, the injection force can be assisted in correction during the injection process to avoid excessive injection force and uneven injection.

[0034] Example 3

[0035] A filling material filler for ear endoscopic surgery, comprising: a filling cylinder 1, a filling tube 2, a push rod 3, a piston 4, and a holding rod 5;

[0036] The filling tube 2 is detachably installed at the head end of the filling tube 1; the filling tube 2 is plastic; the shape of the filling tube 2 is adjusted according to the contour of the structure in the ear canal to adapt it to the structure in the ear, and the mastoid cavity and epitympanic cavity can be accurately filled with bone cement; a piston 4 is movably installed in the filling tube 1, and the piston 4 is connected to one end of the push rod 3, and the other end of the push rod 3 extends out of the filling tube 1; a holding rod 5 is connected at the rear end of the filling tube 1 and perpendicular to the filling tube 1; the holding rod 5 can be used as a force support point, which is more labor-saving when injecting bone cement with high viscosity. A feeding port 101 is opened near the head end of the filling tube 1; it is convenient for timely replenishment of bone cement during use;

[0037] A spring 301 is connected between the rear end of the piston 4 and the rear end of the filling cylinder 1; due to the buffering effect of the spring 301, the injection force can be assisted in correction during the injection process to avoid excessive injection force and uneven injection.

[0038] In order to make the distance between the tail end of the push rod 3 and the holding rod 5 more appropriate and suitable for the push injection operation, the holding rod 5 in the present embodiment is designed to be movable and adjustable on the filling cylinder 1, and the holding rod 5 is vertically installed at the tail end of the filling cylinder 1 in a movable manner to the left and right; the specific movable installation structure is: the adjustment rail 501 is connected to the filling cylinder 1, and the bottom end of the holding rod 5 is movably installed in the adjustment rail 501; the locking knob 502 is installed on the adjustment rail 501, and the locking knob 502 can lock and fix the holding rod 5; loosening the locking knob 502 can move the position of the holding rod 5, and tightening the locking knob 502 can keep the holding rod 5 fixed.

[0039] Example 4

[0040] A filling material filler for ear endoscopic surgery, comprising: a filling cylinder 1, a filling tube 2, a push rod 3, a piston 4, and a holding rod 5;

[0041] The filling tube 2 is detachably installed at the head end of the filling tube 1; the filling tube 2 is plastic; the shape of the filling tube 2 is adjusted according to the contour of the structure in the ear canal to adapt it to the structure in the ear, and the mastoid cavity and epitympanic cavity can be accurately filled with bone cement; a piston 4 is movably installed in the filling tube 1, and the piston 4 is connected to one end of the push rod 3, and the other end of the push rod 3 extends out of the filling tube 1; a holding rod 5 is connected at the rear end of the filling tube 1 and perpendicular to the filling tube 1; the holding rod 5 can be used as a force support point, which is more labor-saving when injecting bone cement with high viscosity. A feeding port 101 is opened near the head end of the filling tube 1; it is convenient for timely replenishment of bone cement during use;

[0042] A spring 301 is connected between the rear end of the piston 4 and the rear end of the filling cylinder 1; due to the buffering effect of the spring 301, the injection force can be assisted in correction during the injection process to avoid excessive injection force and uneven injection.

[0043] In order to make the distance between the tail end of the push rod 3 and the holding rod 5 more appropriate and suitable for the push injection operation, the holding rod 5 in the present embodiment is designed to be movable and adjustable on the filling cylinder 1, and the holding rod 5 is vertically installed at the tail end of the filling cylinder 1 in a movable manner to the left and right; the specific movable installation structure is: the adjustment rail 501 is connected to the filling cylinder 1, and the bottom end of the holding rod 5 is movably installed in the adjustment rail 501; the locking knob 502 is installed on the adjustment rail 501, and the locking knob 502 can lock and fix the holding rod 5; loosening the locking knob 502 can move the position of the holding rod 5, and tightening the locking knob 502 can keep the holding rod 5 fixed.

[0044] The filling tube 2 is shaped by arranging a shaping material inside the filling tube 2; the filling tube 2 is divided into three layers, from outside to inside: a silicone layer 201, a shaping layer 202, and a silicone layer 201; the shaping layer 202 is made of an aluminum strip; the silicone layer 201 can prevent the filling tube 2 from causing damage to the ear canal after entering the ear canal;

[0045] A seepage hole 203 is provided on the side wall of the head end of the filling tube 2, and the direction of the seepage hole 203 is inclined at 60 degrees.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A filling material filler for ear endoscopic surgery, characterized in that: include: Filling cylinder, filling tube, push rod, piston, holding rod; The filling tube head end of the filling cylinder is detachably mounted with a filling pipe; The filling tube is plastic; a piston is movably installed in the filling tube, the piston is connected to one end of a push rod, and the other end of the push rod extends out of the filling tube; The holding rod is located at the rear end of the filling cylinder and is connected perpendicularly to the filling cylinder.

2. The filling material filler for ear endoscopic surgery according to claim 1, characterized in that: The filling tube is provided with a feeding port near the head end.

3. The filling material filler for ear endoscopic surgery according to claim 1, characterized in that: A spring is connected between the rear end of the piston and the rear end of the filling cylinder.

4. The filling material filler for ear endoscopic surgery according to claim 1, characterized in that: The holding rod is vertically installed at the tail end of the filling cylinder and can be moved left and right. The specific movable installation structure is: an adjustment rail is connected to the filling cylinder, and the bottom end of the holding rod is movably installed in the adjustment rail; a locking knob is installed on the adjustment rail, and the locking knob can lock and fix the holding rod.

5. The filling material filler for ear endoscopic surgery according to claim 1, characterized in that: The filling tube is divided into three layers, which are: a silicone layer, a shaping layer, and a silicone layer from the outside to the inside.

6. The filling material filler for ear endoscopic surgery according to claim 5, characterized in that: The shaping layer is made of aluminum strip material.

7. The filling material filler for ear endoscopic surgery according to claim 1, characterized in that: A material seepage hole is provided on the side wall of the filling tube head end, and the direction of the material seepage hole is inclined at 60 degrees.

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