CN219070569U

CN219070569U - Percutaneous puncture instrument

Info

Publication number: CN219070569U
Application number: CN202223275896.3U
Authority: CN
Inventors: 王强
Original assignee: Affiliated Sir Run Run Shaw Hospital of School of Medicine Zhejiang University
Current assignee: Affiliated Sir Run Run Shaw Hospital of School of Medicine Zhejiang University
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-26
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a percutaneous puncture device which comprises an outer sleeve, a side drug delivery tube, a pointed end inner core and a blunt end inner core, wherein the side drug delivery tube, the pointed end inner core and the blunt end inner core are arranged in the outer sleeve, the side drug delivery tube comprises a drug delivery tube body, a second side hole, a depth marking line, a side hole marking line and a limiting clamping strip, and the right end of the wall surface of the drug delivery tube body is provided with the second side hole. The percutaneous puncture device has the advantages that the blunt end of the lateral drug delivery tube head and the blunt end structure of the whole head end formed by matching with the head end of the outer tube are used for puncturing in muscle tissues, the front end is blunt, the puncture of nerves, blood vessels, intestinal tracts and the like can be avoided, and the drug delivery tube body forms a clamping structure through the limiting clamping strips and the limiting grooves, so that the relative positions of the outer tube and the lateral drug delivery tube can be limited, the side holes of the outer tube and the lateral drug delivery tube are communicated, and the purpose of lateral drug delivery is achieved.

Description

Percutaneous puncture instrument

Technical Field

The utility model relates to the technical field of percutaneous puncture, in particular to a percutaneous puncture instrument.

Background

Percutaneous puncture is a common clinical diagnosis and treatment technology, sometimes is also used as a guiding means for establishing a large soft tissue internal passage, when percutaneous puncture is conducted, a large operation passage is established by expanding a soft tissue internal passage through an expander, the current puncture instrument can only be used for feeding medicine at the front end or near the front end, the range for injecting anesthetic after the establishment of the guide is limited to the vicinity of a target position, in order to inject anesthetic in the whole course of the passage to reduce pain of a patient in the expansion process, an operator can only inject anesthetic while puncturing, and when puncturing is conducted under the low-radiation B-ultrasonic guide, the method for injecting anesthetic while puncturing is accurate and effective, but when puncturing is conducted under the X-ray guide, in order to reduce radiation, the operator is punctured according to experience and then photographs X-ray film for verification, therefore, the injection range of anesthetic is often inconsistent with the finally established expansion passage, so that anesthetic is used excessively or the expansion passage is not effective for anesthesia, and pain is caused to the patient.

Disclosure of Invention

The utility model aims to provide a percutaneous puncture device, which solves the problems that the injection range of anesthetic is always inconsistent with the finally established expansion passage, so that the anesthetic is excessively used or the expansion passage cannot be effectively anesthetized to cause pain of a patient because the guide cannot be very accurate and needs to be adjusted for a plurality of times in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the percutaneous puncture device comprises an outer sleeve, a lateral drug delivery tube, a pointed end inner core and a blunt end inner core, wherein the outer sleeve comprises an outer sleeve body and first side holes, and the first side holes are a plurality of or one long side hole distributed along the wall of the outer sleeve; the inside of outer tube is provided with side delivery pipe, tip inner core and blunt tip inner core. The side delivery tube comprises a delivery tube body, second side holes, depth marking lines and side hole marking lines, the second side holes are distributed at the head end of the surface of the tube wall of the delivery tube body, the side hole marking lines horizontally span the middle part of the tail side direction of the second side holes, and the depth marking lines are arranged on the surface of the side delivery tube. The pointed inner core can form a solid structure with a sharp front end with the outer sleeve after being inserted into the outer sleeve; the blunt core is inserted into the outer sleeve and then can form a solid structure with the front end being blunt with the outer sleeve.

Preferably, the drug delivery tube body and the second side hole are of an integrated structure, and at least one second side hole is formed.

Preferably, the upper end and the lower end of the tube wall of the drug delivery tube body are fixedly provided with limiting clamping strips, the drug delivery tube body is fixedly connected with the limiting clamping strips, and the drug delivery tube body and the outer sleeve form a clamping structure through the limiting clamping strips.

Preferably, the outer sleeve comprises an outer sleeve body, first side holes and limiting grooves, wherein the first side holes are distributed on the surface of the pipe wall of the outer sleeve body, and the limiting grooves are formed in the upper end and the lower end of the inner wall of the outer sleeve body.

Preferably, the head end of the outer sleeve body is inactive, the inner cavity of the outer sleeve body is not closed, and the outer sleeve body, the first side hole and the limiting groove are of an integrated structure.

Preferably, the side drug delivery tube head end is blunt and is matched with the head end of the outer sleeve to form an integral head end blunt structure, the side drug delivery tube head end is closed, the outer diameter of the side drug delivery tube is matched with the inner diameter of the outer sleeve, and the side drug delivery tube is inserted into the outer sleeve in a specific direction through the limit clamping strip and the limit clamping groove of the outer sleeve in a matched mode, so that the side hole of the side drug delivery tube is communicated with the side hole of the outer sleeve.

Compared with the prior art, the utility model has the beneficial effects that: the percutaneous puncture device has the advantages that the end of the lateral drug delivery tube head is in blunt closure, the blunt structure of the whole head matched with the end of the outer tube is used for puncturing in muscle tissues, the front end is blunt, the puncture of nerves, blood vessels, intestinal tracts and the like can be avoided, the drug delivery tube body forms a clamping structure through the limiting clamping strips and the limiting grooves, the relative positions of the outer tube and the lateral drug delivery tube can be limited, the side holes of the outer tube and the lateral drug delivery tube are communicated, the purpose of lateral drug delivery is achieved, and meanwhile the relative positions of the first side hole of the outer tube and the lateral drug delivery tube are indicated through the depth mark line and the side hole mark line, so that an auxiliary effect is achieved. Because the end of the side drug delivery tube head is closed, and the outer diameter of the side drug delivery tube is matched with the inner diameter of the outer sleeve, the inner cavity of the outer sleeve is effectively closed, and the anesthetic is communicated only through the side hole to realize injection.

After the puncture is accurate under the guidance of imaging, anesthetic is injected into the tissue around the to-be-dilated passage through the side drug delivery tube and the side hole of the outer sleeve, so that the drug injection is more accurate, and the pain of a patient is reduced; meanwhile, the dosage of the medicine can be reduced, and the side effect of the medicine is reduced.

Drawings

FIG. 1 is a schematic view of a split structure of the present utility model;

FIG. 2 is a schematic view of the structure of the outer cannula and the lateral cannula of the present utility model;

FIG. 3 is a schematic side view of the outer cannula and side delivery tube assembly of the present utility model.

In the figure: 1. an outer sleeve; 101. an outer sleeve body; 102. a first side hole; 103. a limit groove; 2. a lateral drug delivery tube; 201. a delivery tube body; 202. a second side hole; 203. a depth mark line; 204. marking a line on the side hole; 205. limiting clamping strips; 3. a pointed core; 4. a blunt core.

Detailed Description

Example 1: a percutaneous transluminal device comprising: the drug delivery device comprises an outer sleeve 1, wherein a side drug delivery tube 2 and a pointed inner core 3 are arranged in the outer sleeve 1; the outer sleeve 1 comprises an outer sleeve body 101, a first side hole 102 and a limiting groove 103, wherein the first side hole 102 is distributed on the surface of the pipe wall of the outer sleeve body 101, the limiting groove 103 is formed at the upper end and the lower end of the inner wall of the outer sleeve body 101, the head end of the outer sleeve body 101 is blunt, the inner cavity of the outer sleeve body 101 is not closed, the outer sleeve body 101, the first side hole 102 and the limiting groove 103 are of an integral structure, and the head part of the pointed inner core 3 is sharp and matched with the head end of the outer sleeve 1 to form an integral sharp structure of the head end. The side drug delivery tube 2 comprises a drug delivery tube body 201, a second side hole 202, a depth marking line 203, a side hole marking line 204 and a limiting clamping strip 205, wherein the second side hole 202 is distributed at the head end of the tube wall surface of the drug delivery tube body 201, the side hole marking line 204 horizontally spans the middle part of the tail side direction of the second side hole 202, the depth marking line 203 is arranged on the surface of the tail side direction of the side hole marking line 204, the limiting clamping strip 205 is fixed at the upper end and the lower end of the tube wall of the drug delivery tube body 201, an integral structure is formed between the drug delivery tube body 201 and the second side hole 202, at least two second side holes 202 are arranged, the drug delivery tube body 201 and the limiting clamping strip 205 are fixedly connected, the drug delivery tube body 201 and the outer sleeve 1 form a clamping structure through the limiting clamping strip 205, the head end of the side drug delivery tube 2 is blunt and is matched with the head end 1 to form an integral head end blunt structure, the head end of the side drug delivery tube 2 is closed, and the outer diameter of the side drug delivery tube 2 is matched with the inner diameter of the outer sleeve 1. Because the drug delivery tube body 201 forms a clamping structure with the limiting groove 103 through the limiting clamping strip 205, the relative positions of the outer sleeve 1 and the side drug delivery tube 2 can be limited, so that the side holes of the outer sleeve 1 and the side drug delivery tube are communicated, the purpose of side drug delivery is achieved, meanwhile, the relative positions of the first side hole 102 of the outer sleeve 1 and the side drug delivery tube 2 are indicated through the depth mark line 203 and the side hole mark line 204, an auxiliary effect is achieved, the head end of the side drug delivery tube 2 is sealed, the outer diameter of the side drug delivery tube 2 is matched with the inner diameter of the outer sleeve 1, and therefore the inner cavity of the outer sleeve 1 is effectively sealed, and anesthetic liquid is communicated only through the side holes to achieve injection.

In summary, in the percutaneous puncture instrument, in the process of firstly puncturing, establishing and guiding, firstly, the outer sleeve 1 and the pointed inner core 3 are combined to puncture tough skin and fascia, then the pointed inner core 3 is pulled out, the side drug delivery tube 2 is inserted, the outer sleeve 1 and the side drug delivery tube 2 are combined to puncture in muscle tissues, and as the front end is inert, the puncture injuries of nerves, blood vessels, intestinal tubes and the like can be avoided, after establishing and guiding, the anesthetic is injected while the side drug delivery tube 2 is pulled out due to the fact that the first side holes 102 are uniformly distributed on the wall surface of the outer sleeve body 101, the purpose of accurately anesthetizing the whole course of a passage is achieved.

Example 2

As shown in fig. 1-3, a percutaneous transluminal device comprising: the drug delivery device comprises an outer sleeve 1, wherein a side drug delivery tube 2, a pointed core 3 and a blunt core 4 are arranged in the outer sleeve 1; the outer tube 1 includes outer tube body 101, first side hole 102 and spacing groove 103, and the pipe wall surface of outer tube body 101 distributes and has first side hole 102, and the inner wall upper and lower end of outer tube body 101 is provided with spacing groove 103, and outer tube body 101 head end passivity, and outer tube body 101 inner chamber is not closed, is integrated into one piece structure between outer tube body 101, first side hole 102, the spacing groove 103, sharp and the matching of sharp end inner core 3 head and outer tube 1 head end forms whole head end sharp structure, blunt end inner core 4 head round blunt and with outer tube 1 matching form whole head end round blunt structure. The side drug delivery tube 2 comprises a drug delivery tube body 201, a second side hole 202, a depth marking line 203, a side hole marking line 204 and a limiting clamping strip 205, wherein the second side hole 202 is distributed at the head end of the tube wall surface of the drug delivery tube body 201, the side hole marking line 204 horizontally spans the middle part of the tail side direction of the second side hole 202, the depth marking line 203 is arranged on the surface of the tail side direction of the side hole marking line 204, the limiting clamping strip 205 is fixed at the upper end and the lower end of the tube wall of the drug delivery tube body 201, an integral structure is formed between the drug delivery tube body 201 and the second side hole 202, at least two second side holes 202 are arranged, the drug delivery tube body 201 and the limiting clamping strip 205 are fixedly connected, the drug delivery tube body 201 and the outer sleeve 1 form a clamping structure through the limiting clamping strip 205, the head end of the side drug delivery tube 2 is blunt and is matched with the head end of the outer sleeve 1 to form an integral head end blunt structure, the head end of the side drug delivery tube 2 is open, and the outer diameter of the side drug delivery tube 2 is matched with the inner diameter of the outer sleeve 1. Because the drug delivery tube body 201 forms a clamping structure with the limiting groove 103 through the limiting clamping strip 205, the relative positions of the outer sleeve 1 and the side drug delivery tube 2 can be limited, so that the side holes of the outer sleeve 1 and the side drug delivery tube are communicated, the purpose of side drug delivery is achieved, meanwhile, the relative positions of the first side hole 102 of the outer sleeve 1 and the side drug delivery tube 2 are indicated through the depth mark line 203 and the side hole mark line 204, an auxiliary effect is achieved, the head end of the side drug delivery tube 2 is sealed, the outer diameter of the side drug delivery tube 2 is matched with the inner diameter of the outer sleeve 1, and therefore the inner cavity of the outer sleeve 1 is effectively sealed, and anesthetic liquid is communicated only through the side holes to achieve injection.

In summary, in the percutaneous puncture instrument, during the process of puncture establishment and guiding, firstly, the outer sleeve 1 and the pointed inner core 3 are combined to puncture tough skin and fascia, then the pointed inner core 3 is pulled out, the blunt inner core 4 is inserted, the outer sleeve 1 and the blunt inner core 4 are combined to puncture in muscle tissues, because the front end is inert, the puncture of nerves, blood vessels, intestinal tracts and the like can be avoided, after the guiding is established, the blunt inner core 4 is pulled out, the side drug delivery tube 2 is inserted to inject anesthetic, and because the first side holes 102 are uniformly distributed on the surface of the tube wall of the outer sleeve body 101, the anesthetic is injected while the side drug delivery tube 2 is inserted, and the purpose of full-course accurate anesthesia of a passage is achieved

Example 3

A percutaneous transluminal device comprising: the drug delivery device comprises an outer sleeve 1, wherein a drug delivery tube 2, a pointed end inner core 3 and a blunt end inner core 4 are arranged in the outer sleeve 1; the outer sleeve 1 comprises an outer sleeve body 101 and a first side hole 102, the first side hole 102 is distributed on the surface of the pipe wall of the outer sleeve body 101, the head end of the outer sleeve body 101 is blunt, the inner cavity of the outer sleeve body 101 is not closed, the outer sleeve body 101 and the first side hole 102 are of an integral structure, the head of the pointed inner core 3 is sharp and is matched with the head end of the outer sleeve 1 to form an integral head end sharp structure, and the head of the blunt inner core 4 is blunt and is matched with the outer sleeve 1 to form an integral head end blunt structure. The head end of the drug delivery tube 2 is open, and the outer diameter is matched with the inner diameter of the outer sleeve 1.

The percutaneous puncture device is used for the operation of targeting on the surface of bone tissue, and firstly, in the process of puncturing and establishing a guide, the outer sleeve 1 and the pointed inner core 3 are combined to puncture tough skin and fascia. And then the tip core 3 is pulled out, the blunt core 4 is inserted, and the outer sleeve 1 and the blunt core 4 are formed to be combined and puncture in muscle tissues. The blunt core 4 is pulled out, the outer sleeve is propped against the surface of the bone tissue, and a closed structure can be formed at the head end of the outer sleeve due to the existence of hard bones and periosteum with softer surface. Finally, the drug delivery tube 2 is inserted to inject anesthetic, and as the first side holes 102 are uniformly distributed on the surface of the tube wall of the outer sleeve body 101, the anesthetic is injected while the drug delivery tube 2 is inserted, so that the purpose of full-course accurate anesthesia of the passage is achieved.

Claims

1. Percutaneous puncture apparatus, including outer tube (1), side delivery pipe (2), tip inner core (3) and blunt end inner core (4), its characterized in that: the outer sleeve (1) comprises an outer sleeve body (101) and first side holes (102), wherein the number of the first side holes is at least one, and the head end of the outer sleeve is not closed; a lateral drug delivery tube (2), a pointed inner core (3) and a blunt inner core (4) are arranged in the outer sleeve (1); the side drug delivery tube (2) comprises a drug delivery tube body (201), a second side hole (202), a depth marking line (203) and a side hole marking line (204), wherein the second side hole (202) is distributed at the head end of the tube wall surface of the drug delivery tube body (201), the side hole marking line (204) horizontally stretches across the middle part of the tail side direction of the second side hole (202), and the depth marking line (203) is arranged on the side drug delivery tube surface; the pointed inner core can form a solid structure with a sharp front end with the outer sleeve after being inserted into the outer sleeve; the blunt core is inserted into the outer sleeve and then can form a solid structure with the front end being blunt with the outer sleeve.

2. The percutaneous transluminal device of claim 1, wherein: the drug delivery tube body (201) and the second side hole (202) are of an integrated structure, and at least one second side hole (202) is arranged.

3. The percutaneous transluminal device of claim 1, wherein: the upper end and the lower end of the tube wall of the drug delivery tube body (201) are fixedly provided with limiting clamping strips (205), the drug delivery tube body (201) is fixedly connected with the limiting clamping strips (205), and the drug delivery tube body (201) and the outer sleeve (1) form a clamping structure through the limiting clamping strips (205).

4. The percutaneous transluminal device of claim 1, wherein: the outer sleeve (1) comprises an outer sleeve body (101), a first side hole (102) and a limiting groove (103), wherein the first side hole (102) is distributed on the surface of the pipe wall of the outer sleeve body (101), and the limiting groove (103) is formed in the upper end and the lower end of the inner wall of the outer sleeve body (101).

5. The percutaneous penetration device of claim 4, wherein: the head end of the outer sleeve body (101) is inactive, the inner cavity of the outer sleeve body (101) is not closed, and the outer sleeve body (101), the first side hole (102) and the limiting groove (103) are of an integrated structure.

6. The percutaneous transluminal device of claim 1, wherein: the side delivery pipe (2) head end passivity and with outer tube (1) head end match form whole head end passivity structure, and side delivery pipe (2) head end seals, side delivery pipe (2) external diameter and outer tube (1) internal diameter match, and side delivery pipe makes it insert the outer tube through specific direction through spacing draw-in groove phase-match of spacing draw-in bar and outer tube, makes side delivery pipe's side opening and outer tube's side opening be linked together.