CN217366760U

CN217366760U - Device for installing and removing special needle of implanted drug delivery device

Info

Publication number: CN217366760U
Application number: CN202220502739.2U
Authority: CN
Inventors: 谢书勤; 张志彪; 欧阳杰; 卢秀媚; 叶丽君
Original assignee: Dongguan Tungwah Hospital Co Ltd
Current assignee: Dongguan Tungwah Hospital Co Ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-09-06
Anticipated expiration: 2032-03-07

Abstract

The utility model discloses a device is pulled out in installation of special needle of implantable device of dosing, including first support and second support, first support includes holding ring and vertical pole. The second support includes sleeve pipe and double-deck splint, and double-deck splint are connected on the sleeve pipe, and the sleeve pipe cup joints on vertical pole and can follow vertical pole and reciprocate, and double-deck splint include upper plate and hypoplastron, have clearance space between upper plate and the hypoplastron, and the straight flute of a word form is seted up to the hypoplastron, and the straight flute includes first end and second end, and first end runs through the lateral wall of hypoplastron and forms the entry. Compared with the prior art, the utility model discloses with the help of holding ring location puncture point, with the help of double-deck splint the removal of the special needle of upper and lower direction restriction, thereby in special needle can follow the entrance and get into double-deck splint's clearance space simultaneously, thereby install special needle on the base or extract from the base with the help of the sleeve pipe along reciprocating of vertical pole, avoid stabbing the staff because the dynamics of extracting is too big.

Description

Installation and removal device for special needle of implanted drug delivery device

Technical Field

The utility model relates to a medical treatment appurtenance field especially relates to an installation pull out device of special needle of implanted device of dosing.

Background

The implanted drug delivery device is also called as an infusion port clinically, and is mainly used for chemotherapy of tumor patients, and is used for reducing pain caused by multiple times of puncture and reducing peripheral vascular injury. After the implanted drug delivery device is implanted into the subcutaneous part of a human body, the drug infusion is completed by puncturing and injecting the base. In order to reduce the shavings generated during the puncturing process and extend the useful life of the device, it is desirable to use atraumatic, i.e., implantable drug delivery device-specific needles. Medical personnel need wear aseptic gloves under aseptic condition and operate, because the syringe needle pierces the base after the syringe needle and the base combine very closely, need use great strength when pulling out the needle, consequently, sharp needle point often causes medical personnel's hand to stab easily to increase medical personnel's iatrogenic risk of infecting. At present, no device for completing the installation and removal operation of a special needle of an implanted drug delivery device exists, so that a device is needed to be designed to complete the operation, reduce the direct contact of a medical worker on the needle head during the operation, protect the medical worker and reduce the infection risk.

Therefore, there is a need for a device for attaching and removing a needle dedicated for an implantable drug delivery device, which can safely and efficiently complete the attachment and removal of the needle dedicated for an implantable drug delivery device, so as to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can accomplish the special needle of implanted drug delivery device's installation and pull out the special needle of implanted drug delivery device's installation pull out device of work safely, high-efficiently.

In order to achieve the above object, the device for installing and removing a needle dedicated for an implantable drug delivery device of the present invention comprises a first support and a second support, wherein the second support can move in the vertical direction relative to the first support, the first support comprises a positioning ring and a vertical rod connected to the middle part of the positioning ring, the second support comprises a sleeve and a double-layer splint for limiting the needle dedicated for the implantable drug delivery device, the double-layer splint is connected to the side wall of the sleeve, the sleeve is of a hollow structure penetrating from top to bottom, the sleeve is sleeved on the vertical rod and can move up and down along the vertical rod, the double-layer splint comprises an upper plate and a lower plate which are horizontally and parallelly arranged, a gap space is arranged between the upper plate and the lower plate, the lower plate is provided with straight grooves, and the straight grooves comprise a first end part and a second end part distributed at two ends, the first end portion penetrates through the side wall of the lower plate to form an inlet, and the inlet is used for being accessed by a special needle of an implanted drug delivery device.

Compared with the prior art, the utility model discloses a device is pulled out in installation of special needle of device is dosed to implanted has holding ring and vertical pole with the help of first support between with the help of the cooperation of first support and second support, with the help of holding ring location puncture point, have sleeve pipe and double-deck splint with the help of the second support, can drive double-deck splint with the help of the cover pipe box and reciprocate on vertical pole, with the help of double-deck splint the removal of the special needle of direction restriction from top to bottom, simultaneously special needle can follow the entrance and get into in the clearance space of double-deck splint, thereby install special needle on the base or extract from the base with the help of reciprocating of sleeve pipe along vertical pole, thereby make double-deck splint replace the staff, avoid stabbing the staff because the dynamics of extracting is too big, avoid iatrogenic source to infect.

Preferably, a connecting plate is further connected between the upper plate and the lower plate, the connecting plate is vertically arranged on the side walls of the upper plate and the lower plate, and the connecting plate is connected with the sleeve.

Preferably, the needle dedicated to the implanted drug delivery device enters the straight groove vertically from the inlet until abutting against the second end of the straight groove.

Preferably, the width of the straight groove is matched with the outer diameter of the special needle of the implanted drug delivery device.

Preferably, the positioning ring is of a semi-ring structure or a full-ring structure, and the center of the positioning ring is a puncture point.

Preferably, the center of the circle of the positioning ring and the second end are located on the same vertical line.

Preferably, the first support further comprises a cross bar connected to the top of the straight bar.

Preferably, the center of the cross bar is positioned at the top of the straight bar.

Preferably, the second support further comprises two handles, each handle is provided with a connecting rod, the handles are connected to the top of the corresponding sleeve through the connecting rods, and the two handles are symmetrically distributed in the left-right direction.

Preferably, the handle is of annular configuration.

Drawings

Fig. 1 is a schematic perspective view of the installation and removal device for the needle dedicated for the implanted drug delivery device of the present invention.

Fig. 2 is a schematic perspective view of the first bracket of the device for installing and removing the special needle of the implanted drug delivery device of the present invention.

Fig. 3 is a schematic perspective view of the second bracket of the device for installing and removing the needle dedicated for the implanted drug delivery device of the present invention.

Fig. 4 is a schematic perspective view of the double-layered splint for installing and removing the needle dedicated for the implanted drug delivery device of the present invention.

Fig. 5 is a side view of the special needle mounting and removing device of the implantable drug delivery device of the present invention before the special needle is inserted into the base.

Fig. 6 is a side view of the device for attaching and removing a needle specific to an implantable drug delivery device of the present invention after insertion of the needle specific into the base.

Fig. 7 is a schematic structural diagram of a dedicated needle of an implantable drug delivery device.

Detailed Description

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

Referring to fig. 5 to 7, the implantable drug delivery device 200 includes a base 201 and a dedicated needle 202, the base 201 is disposed under the skin, the dedicated needle 202 includes a needle body 2021, a perfusion tube 2022 and mounting wings 2023, the mounting wings 2023 are respectively connected to two sides of the needle body 2021, and the perfusion tube 2022 is connected to the end of the needle body 2021. It will be appreciated that the forward end of the needle body 2021 is used for puncture. The puncture end of the needle body 2021 is disposed downward.

Referring to fig. 1 to 4, the device 100 for installing and removing a needle dedicated for an implantable drug delivery device of the present invention includes a first bracket 1 and a second bracket 2. The second frame 2 is movable up and down with respect to the first frame 1, and the first frame 1 includes a positioning ring 11 and a vertical rod 12 connected to a middle portion of the positioning ring 11. The second bracket 2 comprises a sleeve 21 and a double-layer clamping plate 22 used for limiting the special needle 202, the double-layer clamping plate 22 is connected to the side wall of the sleeve 21, the sleeve 21 is of a hollow structure penetrating up and down, and the sleeve 21 is sleeved on the vertical rod 12 and can move up and down along the vertical rod 12. The double-layered splint 22 includes an upper plate 221 and a lower plate 222 horizontally and parallelly disposed, and a gap space 224 is formed between the upper plate 221 and the lower plate 222. The lower plate 222 is provided with a straight slot 2221, the straight slot 2221 includes a first end portion and a second end portion 2222 distributed at two ends, the first end portion penetrates through a sidewall of the lower plate 222 to form an inlet 2223, and the inlet 2223 is used for the special needle 202 to enter. Before installation, the special needle 202 is inserted into the bi-layer splint 22 from the inlet 2223 such that the special needle 202 faces downward toward the skin. It can be understood that the installation wing 2023 enters the double layer splint 22 from the entrance 2223, and the installation wing 2023 is vertically limited by the upper plate 221 and the lower plate 222, and the dedicated needle 202 is displaced in the vertical direction. The positioning ring 11 is positioned on the skin, and it is noted that the center of the positioning ring 11 is the puncture point. After the positioning ring 11 is positioned, the sleeve 21 is manually moved downward relative to the vertical rod 12, so that the special needle 202 penetrates the skin downward and is combined with the base 201 under the skin, and the installation work of the special needle 202 is completed. When the special needle 202 is to be pulled out from the base 201, the sleeve 21 is manually moved upwards relative to the vertical rod 12, so that the double-layer clamping plate 22 is driven to move upwards, the special needle 202 is driven to pull out the base 201, the pulling-out work of the special needle 202 is safely finished, and the risk that medical staff are hurt due to too large pulling-out force is avoided. More specifically, the following:

referring to fig. 4, a connecting plate 223 is further connected between the upper plate 221 and the lower plate 222, the connecting plate 223 is vertically disposed on the sidewalls of the upper plate 221 and the lower plate 222, and the connecting plate 223 is connected to the sleeve 21. The double layered splint 22 is attached to the sleeve 21 by means of the connecting plate 223 so as to follow the movement of the sleeve 21.

Referring to fig. 4 to 6, the straight grooves 2221 are distributed along the left and right direction of the lower plate 222. The dedicated needle 202 is vertically advanced from the entrance 2223 into the straight slot 2221 until it abuts against the second end 2222 of the straight slot 2221. Preferably, in this embodiment, the width of the straight slot 2221 matches the outer diameter of the special needle 202. Thereby enabling the dedicated needle 202 to move from the inlet 2223 to the second end 2222 along the straight groove 2221, preventing the dedicated needle 202 from moving in the front-rear direction, so that the sliding of the dedicated needle 202 is more reliably stabilized. On the other hand, when the special needle 202 is mounted on the base 201 after puncturing, the special needle 202 of the present invention is moved from the first end portion to the second end portion 2222 so as to withdraw the special needle 202 from the inlet 2223, thereby leaving the special needle 202 on the base 201 alone, and facilitating the subsequent infusion operation. When the special needle 202 needs to be pulled out, the utility model is moved from the direction of the second end 2222 pointing to the first end, so that the special needle 202 enters the gap space 224 through the entrance 2223 to move to the position of the second end 2222 again, and then the sleeve 21 is moved upwards, so that the sleeve 21 drives the double-layered clamp plate 22 and the special needle 202 to move upwards together to be pulled out from the base 201.

Referring to fig. 2, the positioning ring 11 is a semi-ring structure, the center of the semi-ring structure is a puncture point, and the center of the semi-ring structure and the second end 2222 are located on the same vertical line. After the special needle 202 moves from the first end portion to the second end portion 2222, the center of the circle of the positioning ring 11 is the position where the puncture point is found, so that the puncture error rate is reduced, and the puncture accuracy is improved. It is understood that in other embodiments, the positioning ring 11 may be a full ring structure, and therefore, the disclosure is not limited thereto.

Referring to fig. 2 and 3, the first frame 1 further includes a cross bar 13, and the cross bar 13 is connected to the top of the vertical bar 12. The sleeve 21 is prevented from being separated from the vertical rod 12 by the cross bar 13 when moving upward, thereby preventing the second bracket 2 from being separated from the first bracket 1. In particular, the centre of the crossbar 13 is located at the top of the straight bar. Preferably, the second frame 2 further comprises two handles 23, the handles 23 have a connecting rod 231, the handles 23 are connected to the top of the casing 21 through the connecting rod 231, and the two handles 23 are symmetrically arranged. Through the handle 23, the sleeve 21 can move relative to the vertical rod 12 by applying force with fingers, and operation of medical staff is more convenient. In addition, by means of the matching of the cross rod 13 and the handle 23, the force can be assisted by the cross rod 13, so that the second support 2 can be moved more easily. For example, the handle 23 has a ring-shaped structure, but the handle 23 may also have a bar-shaped structure in other embodiments, and thus the invention is not limited thereto.

The working principle and the operation mode of the device 100 for installing and removing the special needle of the implanted drug delivery device of the present invention will be described with reference to the accompanying drawings: before installation, the special needle 202 is moved from the first end to the second end 2222 along the straight slot 2221 through the inlet 2223, the installation wing 2023 is limited by the double-layered clamp plate 22 in the up-down direction, and then the handle 23 is pulled upwards, so that a certain distance is left between the special needle 202 and the positioning ring 11; then, the positioning ring 11 is placed on the base 201 of the patient to position the puncture point, and then the handle 23 is pushed downward, so that the sleeve 21 drives the double-layer splint 22 and the special needle 202 to move downward together until the puncture is completed, and after the puncture is completed, the whole body of the utility model is withdrawn from the inlet 2223, namely, the whole body moves along the direction from the first end to the second end 2222 of the straight groove 2221; when the special needle 202 needs to be removed, the whole body of the present invention is inserted from the inlet 2223, i.e. the straight groove 2221 is moved from the direction of the second end 2222 to the first end. Then, the handle 23 is pulled upward, so that the sleeve 21 carries the double layered splint 22 to move upward to extract the dedicated needle 202.

Compared with the prior art, the utility model discloses a device 100 is pulled out in installation of special needle of implanted device with the help of first support 1 and the cooperation between the second support 2, have holding ring 11 and vertical pole 12 with the help of first support 1, with the help of the 11 location puncture points of holding ring, have sleeve pipe 21 and double-deck splint 22 with the help of second support 2, can drive double-deck splint 22 on vertical pole 12 with the help of sleeve pipe 21 cover and reciprocate, the removal of special needle 202 is restricted at upper and lower direction with the help of double-deck splint 22, special needle 202 can follow entry 2223 department simultaneously and get into in double-deck splint 22's clearance space 224, thereby install special needle 202 on base 201 or extract from base 201 with the help of reciprocating of sleeve pipe 21 along vertical pole 12, thereby make double-deck splint 22 replace the staff, avoid stabbing the staff because the dynamics of extracting is too big, avoid iatrogenic source to infect.

The above disclosure is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and the equivalent changes made by the claims of the present invention are all covered by the present invention.

Claims

1. The device for installing and removing the special needle of the implantable drug delivery device is characterized by comprising a first support and a second support, wherein the second support can move up and down relative to the first support, the first support comprises a positioning ring and a vertical rod connected to the middle part of the positioning ring, the second support comprises a sleeve and a double-layer splint for limiting the special needle of the implantable drug delivery device, the double-layer splint is connected to the side wall of the sleeve, the sleeve is of a hollow structure penetrating up and down, the sleeve is sleeved on the vertical rod and can move up and down along the vertical rod, the double-layer splint comprises an upper plate and a lower plate which are horizontally and parallelly arranged, a gap space is arranged between the upper plate and the lower plate, the lower plate is provided with straight grooves, and the straight grooves comprise a first end part and a second end part which are distributed at two ends, the first end portion penetrates through the side wall of the lower plate to form an inlet, and the inlet is used for being accessed by a special needle of an implanted drug delivery device.

2. The needle mounting and removing device for the implantable drug delivery device according to claim 1, wherein a connecting plate is further connected between the upper plate and the lower plate, the connecting plate is vertically disposed on the side walls of the upper plate and the lower plate, and the connecting plate is connected to the sleeve.

3. The device for mounting and removing the needle dedicated to the implantable drug delivery device according to claim 1, wherein the needle dedicated to the implantable drug delivery device vertically enters the straight groove from the inlet until abutting against the second end of the straight groove.

4. The device for mounting and removing the needle special for the implantable drug delivery device according to claim 1, wherein the width of the straight groove is matched with the outer diameter of the needle special for the implantable drug delivery device.

5. The needle mounting and removing device for an implantable drug delivery device according to claim 1, wherein the positioning ring has a semi-ring structure or a full-ring structure, and the center of the positioning ring is a puncture point.

6. The needle mounting and removing device special for the implantable drug delivery device according to claim 5, wherein the center of the positioning ring is located on the same vertical line with the second end.

7. The needle mounting and removing device special for the implantable drug delivery device according to claim 1, wherein the first bracket further comprises a cross bar, and the cross bar is connected to the top of the straight bar.

8. The needle mounting and removing device special for the implantable drug delivery device according to claim 7, wherein the center of the cross rod is located at the top of the straight rod.

9. The needle mounting and removing device for an implantable drug delivery device according to claim 1, wherein the second frame further comprises two handles, the handles are provided with a connecting rod, the handles are connected to the top of the sleeve through the connecting rod, and the two handles are arranged in a left-right symmetrical manner.

10. The needle mounting and removing device special for the implantable drug delivery device according to claim 9, wherein the handle is in a ring-shaped structure.