Safe needle recovery device

Abstract

The utility model provides a safe recovery device of a needle head, which comprises a recovery sleeve sleeved on the needle head, the needle head comprises a hollow needle head body and a needle head seat arranged at the rear end of the needle head body, a wing-shaped needle pushing part is arranged on one side of the needle head seat, the recovery sleeve is provided with a sliding groove which extends axially and is used for the needle pushing part to extend out, and the needle pushing part is arranged in the sliding groove. A positioning part is arranged on the side, away from the sliding groove, of the recycling sleeve in a protruding mode. The positioning part is sheet-shaped, and a bonding layer is arranged on one side of the positioning part; the sliding groove allowing the needle pushing part to extend out is formed in the recycling sleeve, a medical worker pushes the needle pushing part to slide along the sliding groove during needle pushing so as to drive the needle head body to pierce the vein for injection or blood collection, after the needle head body pierces the blood vessel, the thin film on the pasting layer of the positioning part is torn so that the pasting layer can be pasted to the skin of a patient, and then the needle head is indirectly positioned; the needle pushing part slides along the sliding groove to enable the needle head body to retract into the recycling sleeve, the positioning part is separated from the skin of a patient, recycling is completed, the overall structure is simple, and application is convenient.

Description

Technical Field

[0001] The utility model relates to a safe needle recovery device. Background Art

[0002] In the prior art, hospitals or clinics generally use disposable infusion needles for infusion therapy or blood collection. The disposable infusion needles usually include a hollow needle body (201), a needle seat, and an infusion tube. Used infusion needles need to be specifically recycled to avoid contamination. In order to prevent needles from stabbing people and causing secondary cross infection during the needle recycling process, existing intravenous infusion needles are equipped with safety protective covers to protect the used infusion needles. For example, a safety infusion needle (CN202569071U) provided by a Chinese utility model patent, It includes an infusion needle assembly and a safety shell. The infusion needle assembly and the needle seat are provided with symmetrically extending wings on both sides. The wings on both sides of the needle seat are exposed from the slide grooves on both sides of the safety shell. The ends of the slide grooves are provided with locking grooves for positioning the wings. A safety protrusion is also provided on the needle seat. A protrusion guide groove that matches the protrusion gap is provided at a position on the safety shell corresponding to the sliding trajectory of the safety protrusion. The safety protrusion is in the protrusion guide groove. The ends of the protrusion guide groove are connected to a slot hole that matches the shape of the safety protrusion to form a safety groove. The width of the end section of the protrusion guide groove becomes narrower and is smaller than the width of the safety protrusion.

[0003] The above-mentioned safety infusion needle has a relatively complex structure, and symmetrically extending wings are set on the needle seat, but the existing universal infusion needles usually only have wings on one side to facilitate medical staff to pinch the push needle for injection. Therefore, the versatility of the above-mentioned structure is limited and it is not convenient to directly apply it to the universal infusion needles that are widely used now.

[0004] In order to solve the above technical problems, the applicant has designed a safe needle recovery device, which can be adapted to the existing widely used infusion needles, has a simple structure and is easy to use. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and provide a safe needle recovery device. The technical solution adopted by the utility model is as follows:

[0006] A safe needle recovery device comprises a recovery sleeve sleeved on the needle, the needle comprising a hollow needle body and a needle seat arranged at the rear end of the needle body, a wing-shaped needle-pushing portion is arranged on one side of the needle seat, an axially extending slide groove is provided on the recovery sleeve for the needle-pushing portion to extend out, and a positioning portion is protrudingly provided on the side of the recovery sleeve away from the slide groove; the needle-pushing portion slides along the slide groove to drive the needle body to slide in the recovery sleeve, so that the needle body has a use position extending out of the recovery sleeve and a recovery position retracted into the recovery sleeve; the positioning portion is in the form of a sheet and an adhesive layer is arranged on one side of it.

[0007] Preferably, the positioning portion is made of a hard material, which is convenient for taking and fixing the recovery sleeve through the positioning portion; or, the positioning portion is made of a flexible material, which is convenient for closely fitting with the patient's skin and being retractable.

[0008] Preferably, the adhesive layer is covered with a film that is easy to tear off, and when in use, the film is torn off and the adhesive layer is adhered to the patient's skin.

[0009] Preferably, the slide groove extends to the front end of the recovery sleeve to form an opening, the front end of the recovery sleeve refers to the direction in which the needle tip is pushed out and then punctures the patient's skin, and the rear end of the recovery sleeve refers to the direction close to the infusion tube; this arrangement allows the needle pusher to move out of the slide groove from the front end opening of the recovery sleeve to facilitate medical staff to perform injections without interference from the recovery sleeve under special circumstances, and the rear end of the recovery sleeve closes the slide groove, so that the needle body will not retreat after being fully retracted into the recovery sleeve.

[0010] Furthermore, a notch for the needle pushing part to rotate into is set at the lateral position of the front end of the slide groove. When the positioning part is adhered to the patient's skin, the needle pushing part is simultaneously rotated into the notch, which further fixes the needle pushing part and prevents the positioning part from driving the recovery sleeve to rotate and affecting the stability of the needle. Preferably, notches for the needle pushing part to rotate into are set on both sides of the front end of the slide groove.

[0011] Preferably, a positioning groove is arranged on the side of the rear end of the slide groove, and a pair of elastic stop parts are arranged at the opening of the positioning groove near the slide groove, the width of the positioning groove is adapted to the width of the positioning part, and the width between the elastic stop parts is smaller than the width of the positioning part; when the needle retracts into the recovery sleeve, the positioning part is rotated to squeeze the elastic stop part until it is stuck in the positioning groove, so as to prevent the needle from sliding in the recovery sleeve and extending forward again.

[0012] The beneficial effects of the utility model are as follows: a slide groove is provided on the recovery sleeve of the device for the needle pushing part to extend out. When pushing the needle, the medical staff pushes the needle pushing part to slide along the slide groove and then drives the needle body to pierce the vein for injection or blood collection. After the needle is inserted into the blood vessel, the film on the adhesive layer of the positioning part is torn off so that the adhesive layer is adhered to the patient's skin, thereby indirectly positioning the needle. After the infusion is completed, the needle is first withdrawn by using the needle pushing part, and the needle pushing part slides along the slide groove to retract the needle body into the recovery sleeve. Finally, the positioning part is separated from the patient's skin to complete the recovery. The overall structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0014] Figure 1 This is a schematic diagram of the overall structure of Example 1 (the needle body is in the use position);

[0015] Figure 2 This is a schematic diagram of the overall structure of Example 1 (the needle body is in the recovery position);

[0016] Figure 3 This is a schematic diagram of the recovery sleeve and the needle in Example 1;

[0017] Figure 4 This is a schematic diagram of the back side of the overall structure of Example 1 (the needle body is in the use position);

[0018] Figure 5 This is a schematic diagram of the recovery sleeve structure of Example 1;

[0019] Figure 6 This is a schematic diagram of the recovery sleeve structure of Example 2.

[0020] In the figure, 1-recovery sleeve, 11-positioning part, 111-adhesive layer, 12-slide groove, 13-missing groove, 14-positioning groove, 141-stopper, 2-needle, 201-needle body, 21-needle pushing part, 22-infusion tube, 23-needle seat. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with embodiments and drawings.

[0022] It should be noted that the directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only references to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0023] Example 1

[0024] like Figure 1-5As shown, a safe needle recovery device is provided, wherein the needle 2 comprises a hollow needle body 201 and a needle seat 23 arranged at the rear end of the needle body 201, a wing-shaped needle pushing portion 21 is arranged on one side of the needle seat 23, an axially extending slide groove 12 is provided on the recovery sleeve 1 for the needle pushing portion 21 to extend out, and a positioning portion 11 is protrudingly provided on the side of the recovery sleeve 1 away from the slide groove 12; the needle pushing portion 21 slides along the slide groove 12 to drive the needle 2 to slide in the recovery sleeve 1, so that the needle body 201 has a use position extending out of the recovery sleeve 1 and a recovery position retracted into the recovery sleeve 1; the positioning portion 11 is in a sheet shape and an adhesive layer 111 is arranged on one side thereof, and the adhesive layer 111 is covered with a film that is easy to tear off.

[0025] The device is provided with a slide groove 12 on the recovery sleeve 1 for the needle pushing part 21 to extend out. When pushing the needle, the medical staff pushes the needle pushing part 21 to slide along the slide groove 12 and then drives the needle body 201 to penetrate the vein for injection or blood collection. After the needle body 201 is inserted into the blood vessel, the film on the adhesive layer 111 of the positioning part 11 is torn off so that the adhesive layer 111 is adhered to the patient's skin, thereby indirectly positioning the needle. After the infusion is completed, the needle 2 is first withdrawn by using the needle pushing part 21, and the needle pushing part 21 slides along the slide groove 12 to retract the needle body 201 into the recovery sleeve 1, and finally the positioning part 11 is separated from the patient's skin to complete the recovery.

[0026] Reference Figure 3 In this embodiment, the needle 2 is a universal injection needle, including a hollow needle body 201, the rear end of the needle body 201 is connected to the needle seat 23, and a needle pusher 21 is provided on one side of the needle seat 23. The existing needle seat 23 is made of hard plastic material, so the needle pusher 21 can stably drive the needle to slide in the recovery sleeve.

[0027] In this embodiment, the positioning portion 11 is made of a slightly harder material, which is convenient for taking and driving the recovery sleeve through the positioning portion; technicians in this field can also make the positioning portion 11 made of a flexible material to facilitate close fit with the patient's skin and be rollable.

[0028] Refer to the attached Figure 5 The slide groove 12 extends to the front end of the recovery sleeve 1 to form an opening. The front end of the recovery sleeve 1 refers to the direction in which the needle tip is pushed out and then punctures the patient's skin, and the rear end of the recovery sleeve 1 refers to the direction close to the infusion tube 22. This arrangement allows the needle pusher 21 to move out of the slide groove 12 from the front end opening of the recovery sleeve 1 to facilitate medical staff to perform injections without being disturbed by the recovery sleeve 1 under special circumstances. The rear end of the recovery sleeve 1 closes the slide groove, so that the needle will not retreat after being fully retracted into the recovery sleeve.

[0029] Both sides of the front end of the slide groove 12 are provided with notches 13 for the needle pushing part 21 to rotate into. When the positioning part 11 is pasted on the patient's skin, the needle pushing part 21 is simultaneously rotated into the notches 13, which further fixes the needle pushing part 21 and prevents the positioning part 11 from driving the recovery sleeve 1 to rotate when being pasted, affecting the stability of the needle.

[0030] Example 2

[0031] Reference Figure 6 The difference between the second embodiment and the first embodiment is that the front end of the slide groove 12 is only provided with a notch 13 for the needle pusher 21 to rotate into at the right position. When the positioning portion 11 is attached to the patient's skin (the adhesive layer 111 is provided at Figure 6 The back side position of the positioning portion 11 as shown in FIG), drives the recovery sleeve 1 to rotate slightly to the left (counterclockwise), so that the positioning portion 11 just enters the notch 13.

[0032] In addition, a positioning groove 14 is further arranged on the side of the rear end of the slide groove 12, and a pair of elastic stop portions 141 are arranged at the opening of the positioning groove 14 near the slide groove 12. The width of the positioning groove 14 is adapted to the width of the positioning portion 11. The positioning portion 11 is a hard wing-shaped structure similar to the needle-pushing portion 21, and the width between the elastic stop portions 141 is smaller than the width of the positioning portion 11; when the needle body 201 retracts into the recovery sleeve 1, the positioning portion 11 is rotated to squeeze the elastic stop portion 141 until it is stuck in the positioning groove 14, so as to prevent the needle body 201 from sliding in the recovery sleeve 1 and extending forward again.

[0033] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A needle safety recovery device, comprising a recovery sleeve (1) sleeved on a needle (2), wherein the needle (2) comprises a hollow needle body (201) and a needle seat (23) arranged at the rear end of the needle body (201), and a wing-shaped needle pushing portion (21) is arranged on one side of the needle seat (23), characterized in that: The recovery sleeve (1) is provided with an axially extending slide groove (12) for the push needle portion (21) to extend out, and a positioning portion (11) is protrudingly provided on a side of the recovery sleeve (1) away from the slide groove (12); The needle pushing portion (21) slides along the slide groove (12) to drive the needle body (201) to slide in the recovery sleeve (1), so that the needle body (201) has a use position extending out of the recovery sleeve (1) and a recovery position retracted into the recovery sleeve (1); The positioning portion (11) is in the form of a sheet and has an adhesive layer (111) disposed on one side thereof.

2. A needle safety recovery device according to claim 1, characterized in that: The positioning portion (11) is made of a hard material.

3. The needle safety recovery device according to claim 1, characterized in that: The positioning portion (11) is made of a flexible material.

4. A needle safety recovery device according to claim 2 or 3, characterized in that: The adhesive layer (111) is covered with a film that is easy to tear off.

5. The needle safety recovery device according to claim 1, characterized in that: The slide groove (12) extends to the front end of the recovery sleeve (1) to form an opening.

6. A needle safety recovery device according to claim 1, characterized in that: A notch (13) for the push needle portion (21) to rotate into is provided at the lateral position of the front end of the slide groove (12).

7. A needle safety recovery device according to claim 6, characterized in that: Both sides of the front end of the slide groove (12) are provided with notches (13) for the push needle portion (21) to rotate into.

8. The needle safety recovery device according to claim 6, characterized in that: A positioning groove (14) is arranged on the side of the rear end of the slide groove (12); a pair of elastic stop portions (141) are arranged on the positioning groove (14) near the opening of the slide groove (12); the width of the positioning groove (14) is adapted to the width of the positioning portion (11); and the width between the elastic stop portions (141) is smaller than the width of the positioning portion (11).

Images