CN215461308U - Intrarectal anesthetic administration device pre-packaged with lidocaine cream - Google Patents

Abstract

The utility model discloses an intrarectal anesthesia drug delivery device pre-packaged with lidocaine cream, which comprises a drug injection tube, a drug storage tube and a push rod, wherein a drug injection cavity is formed in the drug injection tube, a drug injection hole communicated with the drug injection cavity is formed in the tube wall of the drug injection tube, one end of the drug injection tube is provided with a puncture head, a drug storage cavity used for storing drugs is formed in the drug storage tube, the other end of the drug injection tube is connected with the drug storage tube so that the drug storage cavity is communicated with the drug injection cavity, the push rod is provided with a piston used for plugging the drug storage tube and arranged on the drug storage tube in a sliding mode, and the drug injection hole is used for injecting the drugs by pushing the push rod. The intrarectal anesthesia drug delivery device pre-packaged with the lidocaine cream has the advantages of comfort in use, excellent anesthesia effect, shortened operation time and the like.

Description

Intrarectal anesthetic administration device pre-packaged with lidocaine cream

Technical Field

The utility model relates to the field of medical instruments, in particular to an intrarectal anesthesia administration device pre-packaged with lidocaine cream.

Background

With the aggravation of aging society, the incidence of prostate diseases is increasing year by year, and the number of transrectal prostate puncture operations as a diagnostic gold standard is increasing. The transrectal prostate puncture is an operation for puncturing a prostate gland through a prostate horizontal section rectal wall, infiltration anesthesia is required to be carried out on the rectal wall by using lidocaine cream before the operation, but no device specially used for intrarectal administration of the lidocaine cream is provided at present, and the conventional ointment design is short and wide or thin tube.

However, there are certain problems in use, and the existing designs do not push the cream effectively to the prostate level in the rectum and are not effective for anesthesia. The distance between the prostate and the anus is about 30-40mm, even if the tube opening of the cream designed by the thin tube opening is only about 13mm, the cream cannot be delivered to the prostate level in the rectum, the anesthesia effect is poor, the pain of a patient in the operation is obvious, and even the operation cannot be smoothly carried out due to the pain. While attempts may be made to push the thin orifice as far into the anus as possible, excessive force tends to cause the orifice to scratch the rectal mucosa, while increasing the patient's mental and physical discomfort. If cream is pumped into a conventional 5ml syringe, the cream is pushed into the anus forcibly through the head end of the syringe after the needle is pulled out, but the mode still cannot ensure enough pressure to deliver the cream to enough depth, the anesthesia effect is still poor, and the surgical requirements cannot be met.

Accordingly, there is a need for an intrarectal anesthetic delivery device pre-packaged with lidocaine cream that overcomes the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an intrarectal anesthesia drug delivery device of prepackaged lidocaine cream for pushing the lidocaine cream, which has the advantages of comfortable use, excellent anesthesia effect, shortened operation time and the like.

In order to achieve the purpose, the utility model discloses an intrarectal anesthesia drug delivery device pre-packaged with lidocaine cream, which comprises a drug injection tube, a drug storage tube and a push rod, wherein a drug injection cavity is formed in the drug injection tube, a drug injection hole communicated with the drug injection cavity is formed in the tube wall of the drug injection tube, one end of the drug injection tube is provided with a puncture head, a drug storage cavity used for storing a drug is formed in the drug storage tube, the other end of the drug injection tube is connected with the drug storage tube so that the drug storage cavity is communicated with the drug injection cavity, the push rod is provided with a piston used for plugging the drug storage tube and arranged on the drug storage tube in a sliding mode, and the drug injection hole is pushed to inject the drug.

Preferably, the rectal anesthesia drug delivery device pre-packaged with lidocaine cream further comprises a protective sheath for preventing from being mistakenly pushed, the push rod has an initial position and a target position for pushing the drug relative to the drug storage cylinder, and the protective sheath is detachably arranged between the drug storage cylinder and the push rod and locks the push rod at the initial position.

Specifically, the one end of the push rod that is kept away from the piston has the push jack that is used for promoting, storage cartridge case outwards extends and forms supplementary edge, the protective sheath corresponds the push jack is equipped with first draw-in groove, first draw-in groove with the push jack block, the protective sheath corresponds supplementary edge is equipped with the second draw-in groove, the second draw-in groove with supplementary edge block.

Preferably, the distance between the medicine injection holes increases from small to big from the puncture head to the direction of the medicine storage barrel.

Preferably, the medicine injection tube is further provided with scale marks for marking.

Preferably, the drug injection tube is provided with a connecting tube corresponding to the drug storage tube.

Preferably, the puncture head is in a semi-spherical shape.

Preferably, the drug injection tube has flexibility.

Compared with the prior art, through with the injection pipe, storage cartridge case and push rod etc. combine together, the injection chamber has in the injection pipe, set up the injection hole with injection chamber intercommunication on the pipe wall of injection pipe, the one end of injection pipe has the puncture head, the setting of puncture head just does not take the hole can be convenient for push into the anus, avoid haring the rectum mucosa, storage cartridge case has the storage chamber that is used for saving the medicament in, the other end and the storage cartridge case of injection pipe are connected so that storage chamber and injection chamber intercommunication, the push rod has shutoff storage cartridge case and the smooth piston of locating storage cartridge case, borrow and promote the push rod and make the medicament in the storage cartridge case extrude and inject the medicament through the injection hole in toward the injection pipe, thereby reach the purpose of injection. The injection pipe and the combination formula of storage cartridge case set up, because the injection pipe can obtain better extension, the injection pipe can be better and stretch into internally, avoid traditional storage medicine structure excessively to stretch into the uncomfortable sense that brings internally to have and use advantages such as comfortable, anesthesia effect is good and shorten the operation time.

Drawings

FIG. 1 is a schematic view of the construction of an intrarectal anesthetic delivery device of the present invention pre-packaged with lidocaine cream in an elevational orientation.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1, the rectal anesthesia drug delivery device 100 of the pre-packaged lidocaine cream of the present invention includes a drug injection tube 1, a drug storage tube 2 and a push rod 3, the drug injection tube 1 has a drug injection cavity 11 therein, the wall of the drug injection tube 1 is provided with a drug injection hole 12 communicated with the drug injection cavity 11, one end of the drug injection tube 1 is provided with a puncture head 13, the puncture head 13 is provided without a hole to facilitate pushing into anus and avoid damaging rectal mucosa, the drug storage tube 2 has a drug storage cavity 21 for storing a drug 200 therein, the other end of the drug injection tube 1 is connected with the drug storage tube 2 to communicate the drug storage cavity 21 with the drug injection cavity 11, the push rod 3 has a piston 31 for plugging the drug storage tube 2 and slidably disposed in the drug storage tube 2, the piston 31 and the drug storage cavity 21 of the drug storage tube 2 are sealed with 5% lidocaine injection cream 10g, which is consistent with the specification of the commonly used lidocaine cream, most of the operation requirements can be satisfied, and the push rod 3 can push the drug 200 in the drug storage tube 2 to extrude into the drug injection tube 1 and pass through the drug injection hole 12 Medicament 200 to reach the purpose of injection, because injection pipe 1 and the combination formula setting of storage cartridge case 2, injection pipe 1 can be better with stretch into internally, avoid traditional storage medicine structure excessively to stretch into the internal uncomfortable sense that brings, thereby have use comfortable, anesthesia effect is good and shorten advantages such as operation time. More specifically, the following:

referring to fig. 1, the rectal anesthesia drug delivery device 100 of the pre-packaged lidocaine cream further includes a protective sheath 4 for preventing from being pushed by mistake, the push rod 3 has an initial position and a target position for pushing the drug 200 relative to the drug storage case 2, the protective sheath 4 is detachably disposed between the drug storage case 2 and the push rod 3 and locks the push rod 3 at the initial position, and since the drug 200 is filled in the drug storage case 2 in an original state and the drug 200 is extruded by pushing the push rod 3, the protective sheath 4 can effectively prevent the drug 200 from being extruded, and the drug 200 can be extruded by removing the protective sheath 4, thereby improving the convenience of use. Specifically, one end of the push rod 3, which is far away from the piston 31, is provided with a push sheet 32 for pushing, the drug storage cartridge 2 extends outwards to form an auxiliary edge 22, the protective sleeve 4 is provided with a first clamping groove 41 corresponding to the push sheet 32, the first clamping groove 41 is clamped with the push sheet 32, the protective sleeve 4 is provided with a second clamping groove 42 corresponding to the auxiliary edge 22, the second clamping groove 42 is clamped with the auxiliary edge 22, the first clamping groove 41 and the push sheet 32 are withdrawn, and the second clamping groove 42 and the auxiliary edge 22 are withdrawn to release the lock of the push rod 3, preferably, the push sheet 32 is an annular sheet structure with grooves, so that the push rod is convenient to push, the auxiliary edge 22 is a semicircular handheld edge, and the auxiliary edges 22 are symmetrically arranged at two sides of the drug storage cartridge 2.

Referring to fig. 1, the drug injection tube 1 is further provided with scale marks 5 for identification, so as to facilitate observation of the insertion depth, and the drug injection tube 1 is provided with a connection tube 14 corresponding to the drug storage cartridge 2. Preferably, the puncture head 13 is in the shape of a semi-sphere, but is not limited thereto. Injection pipe 1 has the flexibility, and injection pipe 1's body length 45mm, external diameter 5mm, internal diameter 3.5mm, 12 groups injection hole 12 of body design, every group two just are the symmetrical arrangement in the both sides of body, and the diameter is about 1.5mm, injection hole 12 the interval by puncture head 13 to storage cartridge case 2's direction is by little grow, and head end injection hole 12 arranges more densely, and tail end injection hole 12 arranges more sparsely, does benefit to and pushes away the cream most 30-40mm degree of depth.

In summary, referring to FIG. 1, a detailed description of the operation of the rectal anesthesia delivery device 100 of the present invention with pre-packaged lidocaine cream is provided:

during the use, unpack apart the sealed package bag of the intrarectal anesthesia medicine delivery device 100 of prepackaging the prepackage lidocaine emulsifiable paste, remove the device, the protective sheath 4 that is used for preventing the mistake to push away is got rid of, use paraffin oil or aseptic supersound couplant to lubricate the head end of injection tube 1, handheld injection tube 1 slowly pushes in its head end from the anus, it stops to observe the scale to about 40mm, the supplementary edge 22 of another hand forefinger and middle finger centre gripping storage cartridge 2, 3 tail end push tabs 32 of thumb pressurization push rod, until pushing out lidocaine emulsifiable paste totally, slowly withdraw from injection tube 1, the anesthetic operation is accomplished.

By combining the drug injection tube 1, the drug storage tube 2 and the push rod 3, the drug injection tube 1 is internally provided with the drug injection cavity 11, the wall of the drug injection tube 1 is provided with the drug injection hole 12 communicated with the drug injection cavity 11, one end of the drug injection tube 1 is provided with the puncture head 13, the puncture head 13 is arranged without a hole to facilitate pushing into the anus so as to avoid damaging the rectal mucosa, the drug storage tube 2 is internally provided with the drug storage cavity 21 for storing the drug 200, the other end of the drug injection tube 1 is connected with the drug storage tube 2 so as to communicate the drug storage cavity 21 with the drug injection cavity 11, the push rod 3 is provided with the piston 31 for plugging the drug storage tube 2 and being arranged in the drug storage tube 2 in a sliding way, the drug 200 in the drug storage tube 2 is extruded into the drug injection tube 1 by pushing the push rod 3 and is injected through the drug injection hole 12, thereby achieving the purpose of injection, because the drug injection tube 1 and the drug storage tube 2 are arranged in a combined way, the drug injection tube 1 can better stretch into the body, thereby avoiding the discomfort caused by the traditional drug storage structure stretching into the body excessively, thereby having the advantages of comfortable use, excellent anesthesia effect, shortened operation time and the like.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.

Claims (8)

1. The utility model provides an anesthesia device of dosing in rectum of prepackage lidocaine emulsifiable paste which characterized in that, includes injection tube, storage cartridge case and push rod, the injection chamber has in the injection tube, seted up on the pipe wall of injection tube with the injection hole of injection chamber intercommunication, the one end of injection tube has the puncture head, have the storage chamber that is used for saving the medicament in the storage cartridge case, the other end of injection tube with storage cartridge case is connected so that storage chamber with injection chamber intercommunication, the push rod has the shutoff storage cartridge case and smooth locate storage cartridge case's piston is borrowed by the promotion the push rod makes injection hole injection medicament.

2. The device for intrarectal anesthetic administration of a prepackaged lidocaine cream of claim 1, further comprising a protective sheath for preventing accidental pushing, the push rod having an initial position relative to the cartridge and a target position for pushing medication, the protective sheath being detachably disposed between the cartridge and the push rod and locking the push rod in the initial position.

3. The device for rectal anesthesia delivery with prepackaged lidocaine cream of claim 2, wherein the end of the push rod remote from the plunger has a push tab for pushing, the reservoir extends outward to form an auxiliary edge, the protective sheath has a first engaging groove corresponding to the push tab, the first engaging groove engages with the push tab, the protective sheath has a second engaging groove corresponding to the auxiliary edge, and the second engaging groove engages with the auxiliary edge.

4. The device for intrarectal anesthetic administration of a prepackaged lidocaine cream of claim 1, wherein the spacing of the administration holes increases from small to large from the piercing head toward the cartridge.

5. The device for intrarectal anesthetic administration of a prepackaged lidocaine cream of claim 1, wherein the administration tube is further provided with graduations for identification.

6. The device for intrarectal anesthetic administration of a prepackaged lidocaine cream of claim 1, wherein the administration tube is provided with a connection tube corresponding to the cartridge.

7. The device for intrarectal anesthetic administration of a pre-packaged lidocaine cream of claim 1, wherein the piercing head is in the shape of a half sphere.

8. The device for intrarectal anesthetic administration of a pre-packaged lidocaine cream of claim 1, wherein the administration tube is flexible.

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