Injection device for periodontal pocket gel administration

Abstract

The utility model relates to the technical field of periodontal pocket gel administration, in particular to an injection device for periodontal pocket gel administration, which comprises a needle cylinder, a push rod is slidably connected in the needle cylinder, the bottom end of the push rod is fixedly connected with a pressing plate, a positioning structure is mounted on the needle cylinder, the positioning structure comprises a fixing sleeve, and the fixing sleeve is fixedly connected with the needle cylinder. A fixing sleeve is detachably connected to the outer portion of the needle cylinder, a positioning groove is formed in the side wall of the fixing sleeve, a positioning block is slidably connected into the positioning groove, a connecting rod is fixedly connected to the outer end of the positioning block, an elastic abutting ring is fixedly connected to the bottom end of the connecting rod, and the elastic abutting ring abuts against the pressing plate. The bottom end of the positioning block is fixedly connected with a sliding block, the sliding block is connected with the positioning groove in a sliding mode, and a through groove is formed in the fixing sleeve; the amount of periodontal pocket gel needing to be extruded out can be controlled, and periodontal pocket gel waste is prevented.

Description

Technical Field

[0001] This utility model relates to an injection device, specifically an injection device for administering periodontal pocket gel, belonging to the field of periodontal pocket gel administration technology. Background Technology

[0002] The tissues surrounding the teeth are called periodontal tissues, also known as the supporting tissues of the teeth. When periodontal tissues are inflamed, a small-diameter, pointed drug delivery tube is usually used to deliver the drug into the edge of the periodontal pocket through an injection method. Then, a probe is used to insert the drug into the periodontal pocket to achieve the purpose of drug delivery.

[0003] When injecting periodontal pocket gel using a syringe, although the syringe is marked with graduations, if the squeezing force is not properly controlled, excessive periodontal pocket gel may accumulate, resulting in waste of periodontal pocket gel. Utility Model Content

[0004] The purpose of this invention is to provide an injection device for administering periodontal pocket gel in order to solve the above problems, which can control the amount of periodontal pocket gel that needs to be extruded and prevent waste of periodontal pocket gel.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an injection device for administering periodontal pocket gel, comprising a syringe, a push rod slidably connected inside the syringe, a pressure plate fixedly connected to the bottom end of the push rod, a positioning structure mounted on the syringe, the positioning structure comprising a fixing sleeve, a fixing sleeve detachably connected to the outside of the syringe, a positioning groove provided on the side wall of the fixing sleeve, a positioning block slidably connected in the positioning groove, a connecting rod fixedly connected to the outer end of the positioning block, an elastic abutment ring fixedly connected to the bottom end of the connecting rod, the elastic abutment ring abutting against the pressure plate, a slider fixedly connected to the bottom end of the positioning block, the slider slidably connected to the positioning groove, and a through groove provided on the fixing sleeve.

[0006] Preferably, the fixing sleeve has a semi-circular structure and is fitted to the syringe.

[0007] Preferably, the positioning grooves are arranged in a linear distribution, and the side ends of the positioning blocks have an arc-shaped structure.

[0008] Preferably, a clamping rod is fixedly connected to the top end of the elastic contact ring. The clamping rod is made of elastic material and engages with the pressure plate.

[0009] Preferably, the clamping rod has an overall L-shaped structure, and multiple clamping rods are arranged in a circular array.

[0010] Preferably, a rubber pad is fixedly connected inside the fixing sleeve, and the rubber pad abuts against the syringe.

[0011] Preferably, a first limiting ring is fixedly connected to the top of the fixing sleeve, and the first limiting ring abuts against the syringe.

[0012] Preferably, a second limiting ring is fixedly connected to the bottom end of the fixing sleeve, and the second limiting ring abuts against the syringe.

[0013] Preferably, the back end of the fixing sleeve is fixedly connected to an elastic clamp, and the elastic clamp engages with the syringe.

[0014] Preferably, multiple elastic clamps are arranged in a parallel and symmetrical manner, and the elastic clamps as a whole have an arc-shaped structure.

[0015] The beneficial effects of this invention are as follows: When periodontal pocket gel needs to be injected, the periodontal pocket gel is first drawn into the syringe by pushing and pulling the plunger and the pressure plate. Then, the fixing sleeve is installed on the outer end of the syringe. After determining the amount of periodontal pocket gel to be squeezed out, the elastic contact ring is installed on the plunger. Then, the positioning block is placed in the through groove by the slider. After the positioning block slides into the marked positioning groove, rotating the elastic contact ring to the left can drive the slider to rotate. When the positioning block rotates into the positioning groove, the slider and the fixing sleeve can limit the positioning block. Then, the pressure plate is pressed to squeeze out the periodontal pocket gel. The pressure plate and the elastic contact ring can position the pressure plate and the plunger, thereby limiting the amount squeezed out and preventing excessive squeezing and waste. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 The diagram shows an enlarged view of part A.

[0018] Figure 3 for Figure 1 The diagram shows an enlarged view of part B.

[0019] Figure 4 for Figure 1 The diagram shows an enlarged view of section C.

[0020] Figure 5 This is a schematic diagram of the connection structure between the syringe and the fixing sleeve of this utility model;

[0021] Figure 6 for Figure 5 The diagram shows an enlarged view of section D.

[0022] Figure 7 This is a schematic diagram of the connection structure between the positioning block and the slider of this utility model.

[0023] In the diagram: 1. Syringe; 2. Push rod; 3. Pressure plate; 4. Positioning structure; 401. Fixing sleeve; 402. Positioning groove; 403. Positioning block; 404. Connecting rod; 405. Elastic contact ring; 406. Clamping rod; 407. Rubber pad; 408. First limiting ring; 409. Second limiting ring; 410. Elastic clamping plate; 5. Slider; 6. Through groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-7 As shown, an injection device for administering periodontal pocket gel includes a syringe 1, a push rod 2 slidably connected inside the syringe 1, a pressure plate 3 fixedly connected to the bottom end of the push rod 2, a positioning structure 4 installed on the syringe 1, the positioning structure 4 including a fixing sleeve 401, the fixing sleeve 401 being detachably connected to the outside of the syringe 1, a positioning groove 402 provided on the side wall of the fixing sleeve 401, a positioning block 403 slidably connected inside the positioning groove 402, a connecting rod 404 fixedly connected to the outer end of the positioning block 403, an elastic abutment ring 405 fixedly connected to the bottom end of the connecting rod 404, the elastic abutment ring 405 abutting against the pressure plate 3, a slider 5 fixedly connected to the bottom end of the positioning block 403, the slider 5 being slidably connected to the positioning groove 402, and a through groove 6 provided on the fixing sleeve 401.

[0026] As a technical optimization of this utility model, the fixing sleeve 401 has a semi-circular structure, and the fixing sleeve 401 is attached to the syringe 1, so as to quantitatively dispense the periodontal pocket gel that needs to be extruded.

[0027] As a technical optimization of this utility model, the positioning grooves 402 are arranged in a linear distribution, and the side end of the positioning block 403 has an arc-shaped structure, so as to adjust the amount to be extruded.

[0028] As a technical optimization of this utility model, a clamping rod 406 is fixedly connected to the top of the elastic contact ring 405. The clamping rod 406 is made of elastic material. The clamping rod 406 engages with the pressure plate 3. The clamping rod 406 has an overall L-shaped structure. Multiple clamping rods 406 are arranged in a ring array to engage and fix the pressure plate 3 within the multiple clamping rods 406, thereby limiting the pressure plate 3 and preventing the pressure plate 3 from sliding back and forth when accidentally touched.

[0029] As a technical optimization of this utility model, a rubber pad 407 is fixedly connected inside the fixing sleeve 401. The rubber pad 407 abuts against the syringe 1, and the rubber pad 407 can limit the friction between the syringe 1 and the fixing sleeve 401.

[0030] As a technical optimization of this utility model, a first limiting ring 408 is fixedly connected to the top end of the fixing sleeve 401, and the first limiting ring 408 abuts against the syringe 1. A second limiting ring 409 is fixedly connected to the bottom end of the fixing sleeve 401, and the second limiting ring 409 abuts against the syringe 1. The first limiting ring 408 and the second limiting ring 409 can limit and fix the syringe 1 and the fixing sleeve 401.

[0031] As a technical optimization of this utility model, the back end of the fixing sleeve 401 is fixedly connected to an elastic clamp 410, the elastic clamp 410 engages with the syringe 1, and multiple elastic clamps 410 are arranged in a parallel and symmetrical relationship. The elastic clamp 410 has an overall arc-shaped structure, and the fixing sleeve 401 can be engaged and installed on the side end of the syringe 1 through the elastic clamp 410.

[0032] In use, when periodontal pocket gel needs to be injected, the periodontal pocket gel is first drawn into the syringe 1 by pushing and pulling the plunger 2 and the pressure plate 3. Then, the fixing sleeve 401 is installed on the outer end of the syringe 1. After determining the amount of periodontal pocket gel to be extruded, the elastic contact ring 405 is installed on the plunger 2. Then, the positioning block 403 is placed in the through groove 6 by the slider 5 and slides. After the positioning block 403 slides into the marked positioning groove 402, rotating the elastic contact ring 405 to the left can drive the slider 5 to rotate. When the positioning block 403 rotates into the positioning groove 402, the slider 5 and the fixing sleeve 401 can abut against the positioning block 403 to limit the positioning block 403. Then, the pressure plate 3 is pressed to extrude the periodontal pocket gel. The pressure plate 3 and the plunger 2 can be positioned by the contact between the pressure plate 3 and the elastic contact ring 405, thereby controlling the amount extruded. To prevent excessive extrusion and waste, when the periodontal pocket gel is used up and there is still some in the syringe 1, the elastic abutment ring 405 is rotated to the right, which can drive the positioning block 403 to slide in the positioning groove 402. When the slider 5 slides into the through groove 6, the elastic abutment ring 405 can be removed. Then, the elastic abutment ring 405 is slid off, and then the pressure plate 3 is locked in the multiple clamps 406, thereby limiting the pressure plate 3 and preventing it from sliding back and forth when accidentally touched, which would cause the periodontal pocket gel in the syringe 1 to be extruded and wasted. The rubber pad 407 can provide frictional limiting between the syringe 1 and the fixing sleeve 401. The first limiting ring 408 and the second limiting ring 409 can limit and fix the syringe 1 and the fixing sleeve 401. The elastic clamp 410 can lock the fixing sleeve 401 onto the side of the syringe 1.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An injection device for administering periodontal pocket gel, comprising a syringe (1), wherein a push rod (2) is slidably connected inside the syringe (1), and a pressure plate (3) is fixedly connected to the bottom end of the push rod (2), characterized in that: The syringe (1) is equipped with a positioning structure (4), which includes a fixing sleeve (401). The fixing sleeve (401) is detachably connected to the outside of the syringe (1). The fixing sleeve (401) has a positioning groove (402) on its side wall. A positioning block (403) is slidably connected in the positioning groove (402). A connecting rod (404) is fixedly connected to the outer end of the positioning block (403). An elastic abutment ring (405) is fixedly connected to the bottom end of the connecting rod (404). The elastic abutment ring (405) abuts against the pressure plate (3). A slider (5) is fixedly connected to the bottom end of the positioning block (403). The slider (5) is slidably connected to the positioning groove (402). The fixing sleeve (401) is provided with a through groove (6).

2. The injection device for periodontal pocket gel administration according to claim 1, characterized in that: The fixing sleeve (401) has a semi-circular structure and is attached to the syringe (1).

3. The injection device for periodontal pocket gel administration according to claim 1, characterized in that: The positioning grooves (402) are arranged in a linear relationship and there are multiple ones. The side end of the positioning block (403) has an arc-shaped structure.

4. The injection device for periodontal pocket gel administration according to claim 1, characterized in that: The top end of the elastic contact ring (405) is fixedly connected to a clamping rod (406), which is made of elastic material and engages with the pressure plate (3).

5. An injection device for administering periodontal pocket gel according to claim 4, characterized in that: The clamping rod (406) has an overall L-shaped structure, and multiple clamping rods (406) are arranged in a ring array.

6. The injection device for administering periodontal pocket gel according to claim 1, characterized in that: A rubber pad (407) is fixedly connected inside the fixing sleeve (401), and the rubber pad (407) abuts against the syringe (1).

7. The injection device for administering periodontal pocket gel according to claim 1, characterized in that: The top end of the fixed sleeve (401) is fixedly connected to a first limiting ring (408), and the first limiting ring (408) abuts against the syringe (1).

8. An injection device for administering periodontal pocket gel according to claim 1, characterized in that: The bottom end of the fixed sleeve (401) is fixedly connected to a second limiting ring (409), and the second limiting ring (409) abuts against the syringe (1).

9. An injection device for administering periodontal pocket gel according to claim 1, characterized in that: The back end of the fixed sleeve (401) is fixedly connected to an elastic clamp (410), and the elastic clamp (410) engages with the syringe (1).

10. An injection device for administering periodontal pocket gel according to claim 9, characterized in that: Multiple elastic clamps (410) are arranged in a parallel and symmetrical manner, and the elastic clamps (410) as a whole have an arc-shaped structure.

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