CN218961481U

CN218961481U - Load type subcutaneous implantation injector

Info

Publication number: CN218961481U
Application number: CN202222828333.6U
Authority: CN
Inventors: 陈亮; 潘震
Original assignee: Shanghai Ruining Biotechnology Co ltd
Current assignee: Shanghai Ruining Biotechnology Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-05-05
Anticipated expiration: 2032-10-26

Abstract

The utility model provides a load type subcutaneous implantation syringe, including the cylinder, the needle head subassembly, push rod and implant load storehouse, the needle head subassembly is including implantation needle and needle file, the cylinder head end is open cassette structure, needle file embedding cassette and cylinder detachable rigid coupling, the cassette bottom has the through-hole that corresponds with the push rod, implantation needle embedding needle file and through-hole intercommunication, the push rod gets into the implantation needle pipe through the through-hole, side trompil has on the needle pipe of implantation needle embedding needle file, needle file inner duct one end is through side trompil and the needle pipe intercommunication other end of implantation needle and the load storehouse of detachable rigid coupling of cassette lateral wall pass through the storehouse mouth intercommunication. The utility model adopts the loading bin for preloading the implant to realize the integration of storage and use; the detachable fixedly connected load bin realizes the replacement of different implants; the detachable and fixedly connected needle head assembly improves the implantation efficiency and the recycling rate of the injector; the cutting piece can flexibly control the dosage of the implant according to the operation requirement. The syringe simple operation can promote medical personnel's operating efficiency.

Description

Load type subcutaneous implantation injector

Technical Field

The utility model relates to a load type subcutaneous implantation injector, belonging to the technical field of medical appliances.

Background

In the traditional method, most of subcutaneous injections are liquid injections, and the direct injection of solid implants into subcutaneous focus is a new medical method. The utility model patent CN202620375U discloses a solid implanter capable of implanting two solid medicines simultaneously or implanting a single solid medicine, wherein the solid medicines are placed in a needle head, and the two solid medicines in the needle head are sequentially implanted into subcutaneous tissues through the cooperation of a clamping block on a push rod and a clamping ring of a guide hole of a needle handle; chinese patent CN107456259a discloses a push injection device capable of measuring the length of injected solid, in which there is a linkage sleeve, the needle can be penetrated into human body by pressing the sleeve, the sleeve has the same track structure as the reciprocating push rod, the solid implant is ejected out and implanted into the reserved position by controlling the pulling-out of the needle by the reciprocating push rod, and the length of the solid implant can be recorded by the scale mark on the reciprocating push rod. The Chinese patent document of CN204636610U discloses a syringe for veterinary use with a replaceable needle for implanting an electronic chip, wherein a needle seat of the syringe is detachably connected with the front end of a needle cylinder, the needle seat and the needle are taken down from the needle cylinder after the electronic chip is implanted into an animal body, the other hollow needle is replaced, and the electronic chip is placed in the hollow needle, so that the electronic chip can be directly replaced without replacing the syringe.

The implantation device in the above patent has a needle which can only be implanted once, and at the same time, most of the solid implantation devices can only be loaded with one or two implants, when a plurality of positions need to be implanted or a plurality of implants need to be implanted continuously, the needle needs to be replaced or the implants need to be reloaded into the injector for completing the operation, so that the implantation or needle pollution exists, the risk of infection of patients is caused, the operation of medical staff is complicated, and the diagnosis and treatment time is delayed.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a subcutaneous implantation injector for loading a multi-dose implant, which is simple and convenient to operate, realizes implantation operation with different doses for a plurality of times without repeatedly adding the implant or disassembling a needle, and avoids pollution risks caused by exposing the implant and the injector to the environment in the operation process.

In order to achieve the above object, the technical scheme of the utility model is as follows:

the loading type subcutaneous implantation injector comprises a needle cylinder, a needle head assembly, a push rod and an implant loading bin, wherein the needle head assembly comprises an implantation needle and a needle seat, the head end of the needle cylinder is of an open clamping seat structure, the needle seat is embedded into the clamping seat and is detachably and fixedly connected with the needle cylinder, a through hole corresponding to the push rod is formed in the bottom of the clamping seat, the implantation needle is embedded into the needle seat and is communicated with the through hole, and the push rod can enter the implantation needle tube through the through hole and is pushed along the needle tube; the needle tube of the implantation needle embedded in the needle seat is provided with a side opening, a pore canal is arranged in the needle seat, one end of the pore canal is communicated with the needle tube of the implantation needle through the side opening, and the other end of the pore canal is communicated with a load bin detachably fixedly connected with the outer side wall of the clamping seat through a bin opening.

The loading subcutaneous implant injector of the present utility model is configured to load a predetermined dose of a plurality of implants into an implant loading chamber prior to use. When in use, single or multiple implants enter the inner pore canal of the needle seat through the bin opening of the load bin and enter the needle tube of the implantation needle through the side opening on the needle tube, push the push rod, the push rod enters the implantation needle tube through the through hole at the bottom of the clamping seat, and finally the implant is pushed along the needle tube to be buried under the skin. The size of the implant is smaller than the pore canal of the needle seat and the inner diameter of the needle tube, and the implant can smoothly roll/move in the pore canal.

According to the utility model, the through holes corresponding to the clamping seat bottom and the push rod are provided with the biodegradable film, so that the closed and clean space environment is formed by the clamping seat bottom before use and the space inside the needle cylinder where the push rod is positioned by the biodegradable film. When in use, the push rod punctures the biodegradable film and enters the implantation needle tube, even if a small amount of biodegradable film is implanted into a human body along with the implant, the biodegradable film can be degraded within a certain time so as to ensure the safety to the human body.

In a preferred embodiment of the present utility model, the implantation needle may be twisted relative to the needle holder, so that the connection point between the needle holder and the implantation needle is offset from the side opening of the implantation needle. Or the needle seat can be twisted relative to the needle cylinder in the clamping seat, so that the communication part of the needle seat and the load bin is staggered with the bin opening of the load bin. The design can ensure that the loading bin, the needle seat pore canal and the needle tube are mutually isolated when the injector is not used, and reduce the pollution risk.

According to a preferred scheme of the utility model, the load bin is further provided with a cutting part and/or a pushing part, the cutting part is movably fixedly connected to the load bin body, the load bin is provided with a working state of pushing down a cutting implant into the load bin and a static state of restoring to the original position, and the pushing part can push the implant to advance towards the communication position of the load bin and the outer side wall of the clamping seat. The design allows the operator to select implant doses independently as desired, cutting the entire (root, strip, block) implant into single dose sizes. The pushing member is preferably a push rod or a side wall of a pusher block disposed within the load compartment.

More preferably, the cutting member is movable transversely or longitudinally along the body of the load compartment to adjust the size of the implant to be implanted and cut.

More preferably, the load compartment is marked with graduations along the longitudinal direction of the compartment body, so that an operator can conveniently determine the dosage of the implant.

According to a preferred scheme of the utility model, the push rod is a cylinder with the diameter of 0.1-0.5 mm, and the end part is smooth. The diameter of the through hole at the bottom of the clamping seat and the inner diameter of the implantation needle are equal to or slightly larger than the diameter of the push rod,

preferably, the load bin is suitable for an implant body, the diameter of which is 0.5-1.0 mm, the length of which is 3-8 mm, and the implant body is cylindrical.

The utility model has the advantages that:

the utility model adopts the load bin preloaded with the implant to realize the integration of storage and use; the detachable and fixedly connected load bin can realize the replacement of different implants; the detachable and fixedly connected needle head assembly realizes the repeated use of other parts of the injector, improves the implantation efficiency and also improves the repeated utilization rate of the injector; the cutting piece of the load bin can flexibly control the dosage of the implant according to the operation requirement. The syringe simple operation can promote medical personnel's operating efficiency.

Drawings

The utility model is further described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present utility model.

Fig. 2 is a schematic view showing the structure of a needle assembly according to embodiment 1 of the present utility model.

Fig. 3 is a schematic view of the structure of an implantation needle according to embodiment 1 of the present utility model.

Fig. 4 is a schematic view of the structure of the syringe according to embodiment 1 of the present utility model.

Detailed Description

Example 1

As shown in fig. 1-4, the loading type subcutaneous implantation injector of the present embodiment comprises a syringe 1, a needle head assembly, a push rod 2 and an implant loading bin 7, wherein the needle head assembly comprises an implantation needle 4 and a needle seat 5, the head end of the syringe 1 is an open type clamping seat 3, the needle seat 5 is embedded into the clamping seat 3 to be detachably fixedly connected with the syringe 1, a through hole 11 corresponding to the push rod 2 is arranged at the bottom of the clamping seat 3, the implantation needle 4 is embedded into the needle seat 5 to be communicated with the through hole, and the push rod 2 can enter a tube of the implantation needle 4 through the through hole to be propelled along the needle tube; the needle tube of the implantation needle 4 embedded in the needle seat 5 is provided with a side opening 6, the inside of the needle seat 5 is provided with a pore canal, one end of the pore canal is communicated with the needle tube of the implantation needle 4 through the side opening 6, and the other end is communicated with a load bin 7 detachably fixedly connected with the outer side wall of the clamping seat 3 through a bin opening 8.

The through hole 11 at the bottom of the clamping seat 3 corresponding to the push rod 2 can be further provided with a biodegradable film, so that the inner space of the needle cylinder 1 where the push rod 2 is positioned is formed into a closed and clean space environment by the bottom of the clamping seat 3 and the biodegradable film before use. When in use, the push rod 2 punctures the biodegradable film and enters the implantation needle 4, even if a small amount of biodegradable film is implanted into a human body along with an implant, the biodegradable film can be degraded within a certain time so as to ensure the safety of the human body.

The implantation needle 4 can be twisted relative to the needle holder 5, so that the connection between the needle holder 5 and the implantation needle 4 is dislocated with the formation of the lateral opening 6 of the implantation needle 4. Or the needle seat 5 can be twisted relative to the needle cylinder 1 in the clamping seat 3, so that the communication part of the needle seat 5 and the load bin 7 is staggered with the bin opening 8 of the load bin 7. The design can ensure that the loading bin 7, the needle seat 5 pore canal and the needle tube are mutually isolated when the injector is not used, and reduce the pollution risk.

The load bin 7 is also provided with a cutting piece 9 and/or a pushing piece 10, the cutting piece 9 is movably fixedly connected to the load bin 7 body, the load bin 7 is provided with a working state of pushing down the cut implant into the load bin 7 and a static state of restoring to the original position, and the pushing piece 10 can push the implant to advance towards the communication position of the load bin 7 and the outer side wall of the clamping seat 3. The design allows the operator to select implant doses independently as desired, cutting the entire (root, strip, block) implant into single dose sizes. The pusher 10 is preferably a push rod 2 or a side wall dial provided in the load compartment 7.

The cutting member 9 is movable transversely or longitudinally along the body of the load compartment 7 to adjust the size of the implant to be implanted and cut.

The load cartridge 7 is marked with graduations along the longitudinal direction of the cartridge body, which facilitates the operator in determining the dose of the implant.

The push rod 2 is a cylinder with the diameter of 0.1-0.5 mm, and the end part is smooth. The diameter of the through hole at the bottom of the clamping seat 3 and the inner diameter of the implantation needle 4 are equal to or slightly larger than the diameter of the push rod 2,

the load bin 7 is suitable for an implant body, and has the diameter of 0.5-1.0 mm, the length of 3-8 mm and a cylindrical shape.

The specific use process of this embodiment is as follows:

the pushing piece 10 pushes the implant with the required dosage, the cutting piece 9 is reset after being pressed down and cut into the load bin 7, the pushing piece 10 is pushed again, single or multiple implants enter the inner pore canal of the needle seat 5 through the bin opening 8 of the load bin 7 and enter the needle tube of the implantation needle 4 through the side opening on the needle tube, the implantation needle 4 or the needle seat 5 is twisted to the state that the load bin 7, the pore canal of the needle seat 5 and the needle tube are isolated from each other, the push rod 2 is pushed, the biodegradable film is punctured by the push rod 2 to enter the implantation needle 4 tube through the through hole 11 at the bottom of the clamping seat 3, and finally the implant is pushed to be buried under the skin along the needle tube. The size of the implant is smaller than the pore canal of the needle seat 5 and the inner diameter of the needle tube, and can smoothly roll/move in the pore canal.

When it is desired to implant a different implant, the implant load cartridge 7 may be replaced directly.

In addition to the embodiments described above, other embodiments of the utility model are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the utility model.

Claims

1. The utility model provides a load type subcutaneous implantation syringe, its characterized in that includes cylinder, needle head subassembly, push rod and implant load storehouse, the needle head subassembly includes implantation needle and needle file, the cylinder head end is open cassette structure, and needle file embedding cassette and cylinder can dismantle the rigid coupling, the cassette bottom has the through-hole that corresponds with the push rod, implantation needle embedding needle file and through-hole intercommunication, the push rod can get into implantation needle tube through the through-hole, have the side trompil on the needle tubing of implantation needle embedding needle file, the inside pore that has of needle file, pore one end is through side trompil and implantation needle's needle tubing intercommunication, and the other end passes through the storehouse mouth intercommunication with the load storehouse of the detachable rigid coupling of cassette lateral wall.

2. The subcutaneous implant syringe of claim 1, wherein the through-hole of the cartridge base corresponding to the pushrod has a biodegradable film.

3. The subcutaneous implant syringe of claim 1, wherein the implant needle is torqued relative to the hub to misalign the hub in communication with the implant needle with the side aperture of the implant needle.

4. The subcutaneous implant injector of claim 1, wherein the hub is torsionable within the cartridge relative to the barrel such that the hub communicates with the load compartment in a staggered relationship with the compartment opening of the load compartment.

5. The subcutaneous implant injector according to any of claims 1-4, wherein the loading compartment further comprises a cutting member movably secured to the loading compartment body and having an operative condition for depressing the cut implant into the loading compartment and a rest condition for returning to its original position, and/or a pushing member for pushing the implant forward toward the connection between the loading compartment and the outer side wall of the cartridge.

6. The subcutaneous implant syringe of claim 5, wherein said cutting member is movable transversely or longitudinally along the body of the load compartment.

7. The subcutaneous implant syringe of claim 1, wherein the load cartridge is marked with graduations along the longitudinal direction of the cartridge body.