Connecting and fixing device for injector and infusion bottle

Abstract

The utility model discloses an injector and infusion bottle connecting and fixing device which comprises a needle clamping sleeve provided with a clamping hole, and a first observation area arranged on the side wall of the needle clamping sleeve; the fixer comprises a first clamping seat and a second clamping seat which are connected in a sliding manner; a second observation area correspondingly communicating with the first observation area is arranged at the end, away from the sliding connection, between the first clamping base and the second clamping base. A clamping area is defined by the first clamping seat and the second clamping seat; the clamping area comprises a clamping sleeve connecting area and a bottle neck connecting area; the needle head clamping sleeve is arranged in the clamping sleeve connecting area and is clamped and connected by the fixer; a first pressing piece and a second pressing piece extend from the ends of the first guide rail and the second guide rail in the direction away from the clamping area, and the elastic piece abuts against the first pressing piece and the second pressing piece and is used for keeping the first pressing piece and the second pressing piece away from each other relatively. The connecting fixer is simple in structure, convenient to produce and manufacture, low in cost, simple to operate and beneficial to popularization and use.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically a syringe and infusion bottle connector. Background Technology

[0002] When treating patients, medications are administered orally, topically, or by injection. When a large amount of medication is being injected over a longer period, an intravenous drip is typically used, with a syringe connected to the infusion site and the bottle neck. Please refer to [reference needed]. Figure 13 The syringe structure includes a needle (a), a needle seat (b), and an infusion tube (c). The sharp needle (a) pierces the sealing layer of the infusion bottle opening, and the needle tip communicates with the inner cavity of the infusion bottle. This end of the syringe relies on the friction between the needle (a) and the sealing layer of the bottle opening to maintain the connection. This connection is unstable, and if the patient moves or drags the syringe, the needle (a) can easily become disconnected from the bottle opening.

[0003] Currently, patent documents such as the fixing mechanism for preventing the infusion tube from falling off the infusion bottle disclosed in patent announcement number CN217660946U, and the fixing and anti-pulling device for infusion cannulas for elderly care disclosed in announcement number CN219323734U, although they provide devices to prevent the needle a from being disconnected from the bottle mouth, these devices have complex structures, high manufacturing costs, and are difficult to operate and use. Utility Model Content

[0004] This utility model addresses the above-mentioned problems by proposing a syringe and infusion bottle connection and fixing device, aiming to solve the technical problems in the background art.

[0005] To achieve the above objectives, this utility model provides a syringe and infusion bottle connection and fixing device, comprising:

[0006] A needle holder sleeve, wherein the needle holder sleeve has a clamping hole corresponding to the needle seat, and the side wall of the needle holder sleeve has a first observation area communicating with the clamping hole and the outside world;

[0007] A retainer includes a first clamping seat and a second clamping seat. The first clamping seat has multiple first guide rails, and a first guide groove is provided between two first guide rails. The second clamping seat has a second guide groove and a second guide rail that correspond to and cooperate with the first guide rails and the first guide groove. The first clamping seat and the second clamping seat are slidably connected by the first guide rail extending into the second guide rail and the second guide rail extending into the first guide groove. The end of the first clamping seat and the second clamping seat away from the slidable connection has a second observation area that corresponds to and communicates with the first observation area. The first clamping seat and the second clamping seat enclose a clamping area. The clamping area includes a clamping sleeve connecting area and a bottle mouth connecting area. The needle clamping sleeve is placed into the clamping sleeve connecting area and clamped and connected by the retainer.

[0008] An elastic element is provided, wherein a first pressing element and a second pressing element extend from the ends of the first guide rail and the second guide rail away from the clamping area, respectively, and the elastic element abuts against the first pressing element and the second pressing element to keep the first pressing element and the second pressing element relatively far apart.

[0009] Furthermore, the needle holder is made of elastic plastic.

[0010] Furthermore, the elastic element is a curved spring rod, and both the first pressing element and the second pressing element are provided with a rotating connection limiting groove that cooperates with the spring rod.

[0011] Furthermore, the bottle nozzle connection area is provided with a retaining ring groove corresponding to the bottle cap limiting ring of the infusion bottle nozzle.

[0012] Furthermore, the outer walls of the first pressing member and the second pressing member are provided with anti-slip protrusions.

[0013] Furthermore, the second guide rail sidewall is provided with a sliding guide protrusion, and the first guide rail sidewall is provided with a sliding guide groove that corresponds to and cooperates with the sliding guide protrusion.

[0014] Compared with the prior art, the syringe and infusion bottle connector provided by this utility model has a simple structure, is easy to manufacture, has low cost, is easy to operate, and is conducive to widespread use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the syringe and infusion bottle connection and fixation device and the infusion bottle of this application.

[0016] Figure 2 This is a schematic diagram of the structure of the syringe and infusion bottle connection and fixation device of this application when connected to the infusion bottle.

[0017] Figure 3 This is a cross-sectional view of the syringe and infusion bottle connection and fixation device and the infusion bottle of this application.

[0018] Figure 4 This is a schematic diagram of the syringe and infusion bottle connection fixture of this application from another perspective when connected to the infusion bottle.

[0019] Figure 5 This is a schematic diagram of the syringe and infusion bottle connection and fixing device structure of this application.

[0020] Figure 6 This is an exploded view of the syringe and infusion bottle connection and fixing structure of this application.

[0021] Figure 7 This is an exploded view of the syringe and infusion bottle connection and fixing structure of this application.

[0022] Figure 8 This is a schematic diagram of the fixture structure for the syringe and infusion bottle connection fixture of this application.

[0023] Figure 9 This is a schematic diagram of the syringe and infusion bottle connection and fixation device and the infusion bottle of this application.

[0024] Figure 10 This is a schematic diagram of the elastic component structure of the syringe and infusion bottle connection and fixation device of this application.

[0025] Figure 11 This is a side view of the syringe and infusion bottle connection and fixation device of this application.

[0026] Figure 12 for Figure 11 An exploded view of the fixation device.

[0027] Figure 13 This is a schematic diagram of the syringe needle structure.

[0028] The reference numerals in the figure are as follows: 1. Needle clamp sleeve; 110. Clamping hole; 120. First observation area; 2. Fixer; 210. First clamping seat; 211. First guide rail; 2111. First pressing element; 2112. Sliding guide groove; 212. First guide groove; 220. Second clamping seat; 221. Second guide groove; 2166. Rotary connection limiting groove; 2167. Anti-slip protrusion; 222. Second guide rail; 2221. Second pressing element; 2222. Sliding guide protrusion; 230. Second observation area; 240. Clamping area; 241. Clamp sleeve connecting area; 242. Bottle mouth connecting area; 2421. Holding ring groove; 3. Elastic element; 310. Central section; 320. First abutment foot; 330. Second abutment foot; 340. First connecting section; 350. Second connecting section; 4. Bottle cap limiting ring. Detailed Implementation

[0029] Please refer to Figure 1 - Figure 13This embodiment provides a syringe and infusion bottle connection and fixing device, including:

[0030] The needle clamping sleeve 1 has a clamping hole 110 corresponding to the needle seat, and the side wall of the needle clamping sleeve 1 has a first observation area 120 that communicates with the clamping hole 110 and the outside.

[0031] Fixture 2, comprising a first clamping seat 210 and a second clamping seat 220; the first clamping seat 210 is provided with a plurality of first guide rails 211, and a first guide groove 212 is provided between two first guide rails 211; the second clamping seat 220 is provided with a second guide groove 221 and a second guide rail 222 corresponding to and cooperating with the first guide rail 211 and the first guide groove 212; the first clamping seat 210 and the second clamping seat 220 extend into the second guide rail 222 through the first guide rail 211 and the first guide groove 212. Two guide rails 222 extend into the first guide groove 212 and are slidably connected; the end of the first clamping seat 210 and the second clamping seat 220 away from the slidable connection has a second observation area 230 that is correspondingly connected to the first observation area 120; the first clamping seat 210 and the second clamping seat 220 enclose a clamping area 240; the clamping area 240 includes a clamping sleeve connecting area 241 and a bottle mouth connecting area 242; the needle clamping sleeve 1 is placed into the clamping sleeve connecting area 241 and is clamped and connected by the retainer 2.

[0032] The elastic member 3 has a first pressing member 2111 and a second pressing member 2221 extending from the ends of the first guide rail 211 and the second guide rail 222 away from the clamping area 240, respectively. The elastic member 3 abuts against the first pressing member 2111 and the second pressing member 2221 to keep the first pressing member 2111 and the second pressing member 2221 relatively far apart.

[0033] Working principle of the syringe and infusion bottle connection retainer: Medical personnel first insert the needle holder of the syringe into the clamping hole 110, then insert the needle into the cap of the infusion bottle. Next, the medical personnel can operate the retainer 2 with one hand, pressing the first pressing element 2111 and the second pressing element 2221 with their thumb and forefinger respectively. This causes the first clamping element 210 and the second clamping element 220 to slide through the sliding cooperation of the first guide rail 211, the first guide groove 212, the second guide rail 222, and the second guide rail 222, overcoming the elastic force of the elastic element 3 and compressing it. The first pressing element 2111 and the second pressing element 2221 then... As the two devices move closer together, the second observation area 230 at the other end of the fixture 2 is enlarged, and the clamping area 240 is enlarged. The entire fixture 2 is moved so that the clamping sleeve connecting area 241 and the bottle mouth connecting area 242 correspond to the positions of the ring needle clamping sleeve 1 and the infusion bottle mouth, respectively. The pressure on the first pressing member 2111 and the second pressing member 2221 is released. Under the action of the elastic member 3, the first pressing member 2111 and the second pressing member 2221 are kept relatively far apart. The clamping sleeve connecting area 241 and the bottle mouth connecting area 242 tightly cover the clamping needle clamping sleeve 1 and the infusion bottle mouth, thereby achieving a stable connection between the syringe needle and the infusion bottle and preventing them from separating.

[0034] The first observation area 120 and the second observation area 230 can serve as needle holders and infusion tubing that do not obstruct the needle tip, making it easier for medical staff to observe the medication administration.

[0035] This syringe and infusion bottle connector has a simple structure, is easy to manufacture, has low cost, is easy to operate, and is conducive to widespread use.

[0036] Preferably, the needle holder 1 is made of elastic plastic.

[0037] The needle holder 1 made of this material can have a clamping hole 110 slightly smaller than the needle base. When connecting the needle holder 1 to the needle base, the slots on both sides of the first observation area 120 can be bent to deform the needle holder 1, thereby expanding the space between the clamping hole 110 and the first observation area 120, so that the needle base can be better inserted into the clamping hole 110. After insertion, the external force is removed, and the connection between the needle holder 1 and the needle base is more secure and sufficient.

[0038] Please refer to Figure 7 and Figure 10 The elastic element 3 is a spring rod with a curved structure. The first pressing element 2111 and the second pressing element 2221 are both provided with a rotating connection limiting groove 2166 that cooperates with the spring rod.

[0039] This simple and easy-to-manufacture spring rod can effectively cooperate with the first pressing member 2111 and the second pressing member 2221, providing elastic support on the one hand and preventing the first clamping seat 210 and the second clamping seat 220 from separating on the other.

[0040] The curved spring rod consists of five sections: a central section 310, two supporting feet (first supporting foot 320 and second supporting foot 330), and two connecting sections (first connecting section 340 and second connecting section 350). The two ends of the central section 310 are connected to the first connecting section 340 and the second connecting section 350, respectively. The other end of the first connecting section 340 is connected to the first supporting foot 320, and the other end of the second connecting section 350 is connected to the second supporting foot 330. The connection points can be either curved or bent.

[0041] When the central section 310 is connected to the rotating connection limiting groove 2166 on the first pressing member 2111, the first supporting foot 320 and the second supporting foot 330 are respectively connected to the two rotating connection limiting grooves 2166 on the second pressing member 2221.

[0042] When the first pressing member 2111 and the second pressing member 2221 are pressed and brought close together, the spring rod of the curved structure deforms and tends to straighten. The first supporting foot 320 and the second supporting foot 330 slide between the rotating connection limiting groove 2166 and extend to the outside, thereby compressing the elastic member 3.

[0043] Please refer to Figure 3 and Figure 5 , Figure 9 The bottle nozzle connection area 242 is provided with a retaining ring groove 2421 corresponding to the bottle cap limiting ring 4 of the infusion bottle nozzle.

[0044] The retaining ring groove 2421 accommodates the bottle cap limiting ring 4, further enhancing the connection strength between the retainer 2 and the infusion bottle nozzle.

[0045] Please refer to Figure 5 The outer walls of the first pressing member 2111 and the second pressing member 2221 are provided with anti-slip protrusions 2167.

[0046] The anti-slip protrusions 2167 facilitate user operation by pressing the first pressing part 2111 and the second pressing part 2221.

[0047] Please refer to Figure 11 , Figure 12 The second guide rail 222 has a sliding guide protrusion 2222 on its side wall, and the first guide rail 211 has a sliding guide groove 2112 on its side wall that corresponds to and cooperates with the sliding guide protrusion 2222.

[0048] The sliding guide protrusion 2222 and the sliding guide groove 2112 cooperate to prevent the connection between the first clamping seat 210 and the second clamping seat 220 from flipping and separating, which would cause the fixture 2 to disintegrate.

Claims

1. A syringe and infusion bottle connector, characterized in that, include: A needle holder sleeve, wherein the needle holder sleeve has a clamping hole corresponding to the needle seat, and the side wall of the needle holder sleeve has a first observation area communicating with the clamping hole and the outside world; A retainer includes a first clamping seat and a second clamping seat. The first clamping seat has multiple first guide rails, and a first guide groove is provided between two first guide rails. The second clamping seat has a second guide groove and a second guide rail that correspond to and cooperate with the first guide rails and the first guide groove. The first clamping seat and the second clamping seat are slidably connected by the first guide rail extending into the second guide rail and the second guide rail extending into the first guide groove. The end of the first clamping seat and the second clamping seat away from the slidable connection has a second observation area that corresponds to and communicates with the first observation area. The first clamping seat and the second clamping seat enclose a clamping area. The clamping area includes a clamping sleeve connecting area and a bottle mouth connecting area. The needle clamping sleeve is placed into the clamping sleeve connecting area and clamped and connected by the retainer. An elastic element is provided, wherein a first pressing element and a second pressing element extend from the ends of the first guide rail and the second guide rail away from the clamping area, respectively, and the elastic element abuts against the first pressing element and the second pressing element to keep the first pressing element and the second pressing element relatively far apart.

2. The syringe and infusion bottle connection and fixing device according to claim 1, characterized in that, The needle holder is made of elastic plastic.

3. The syringe and infusion bottle connection and fixing device according to claim 1, characterized in that, The elastic element is a curved spring rod, and both the first pressing element and the second pressing element are provided with a rotating connection limiting groove that cooperates with the spring rod.

4. The syringe and infusion bottle connection and fixing device according to claim 1, characterized in that, The bottle nozzle connection area is provided with a retaining ring groove corresponding to the bottle cap limiting ring of the infusion bottle nozzle.

5. The syringe and infusion bottle connection and fixing device according to claim 1, characterized in that, The outer walls of the first pressing member and the second pressing member are provided with anti-slip protrusions.

6. The syringe and infusion bottle connection and fixing device according to claim 1, characterized in that, The second guide rail sidewall is provided with a sliding guide protrusion, and the first guide rail sidewall is provided with a sliding guide groove that corresponds to and cooperates with the sliding guide protrusion.

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