What does a support chip do? | Its shape determines its role [OK Prostate Chip]

This page is based on entries from "ok-lab's diary" (https://ok-lab.hatenablog.com/), the Japanese development diary written by Mr. Okada, founder of OK Lab, a small company in Japan (Okada Comfortable Life Laboratory). Only the entries about "support chip roles and shapes" are summarized here, in order of publication. Past prices and sizes are as written at the time. Current prices come from the official product list (retrieved September 4, 2026). Quotations are translated from Japanese.

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Note: This page is a personal reading log by someone with no connection to the maker or the seller. It reflects the source entries as of their publication dates and makes no guarantee of accuracy or safety. The product is not a medical device; talk to a doctor about any health decision. Check the official site for current information. This page contains advertising.

In short

Support chips have different jobs: assisting a main chip, connecting components, or providing a hollow passage.

Mr. Okada says a separate support chip is mainly useful with small main chips that are difficult to locate.

The separate resin support chip is on the current product list at ¥2,750 (about $18 at ¥156 = $1, rate as of 2026-09-04) including tax.

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

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About this product

The OK Prostate Chip is a small device that is placed in the urethra (the urine passage) so that it acts on the prostate; the maker sells it in several shapes, sizes and materials. It is made and sold by OK Lab (Okada Comfortable Life Laboratory), a small company in Japan, through its own online store, and prices are in Japanese yen (JPY).

The maker's development diary, "ok-lab's diary", is written in Japanese. This page is an English summary of it, and every quotation is translated. OK Lab ships internationally, so readers outside Japan can order (see "Buying from outside Japan" below). Product names on this page are plain-English descriptions. The official Japanese product name is shown once in the product table so you can find the same item in the store.

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Before you read: key terms

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What happens: support chip shapes and uses

The OK Prostate Chip is a device placed in the urethra (the urine passage) to act on the prostate. A support chip is an additional component whose job depends on its design. The March 2018 entry describes a separate receiving part behind the main chip, with its own thread. Later designs include flat connectors, hollow parts near the penis tip, and a disc attached to curved wire behind the prostate area.

Hollow support chips raised removal concerns during early resin testing

In an entry published in February 2018, Mr. Okada described testing a resin assembly with two hollow chips. He later found it unusually difficult to remove, although he eventually retrieved it. He suspected that its dry outer surfaces had stuck to the urine passage.

He reported a normal urological examination, but said the doctor rejected his suggestion that this established the device's safety. No matching product can be confirmed on the current list. Mr. Okada withheld sales pending a solution to the suspected drying problem.

(Source: ok-lab's diary, published February 2018)
https://ok-lab.hatenablog.com/entry/20180228/1519809422

The separate support chip had its own thread and receiving socket

In an entry published in March 2018, Mr. Okada introduced a separate support chip with a socket for the main component's rear rod. Each component had its own thread, unlike an earlier arrangement sharing one thread. He described the support as an additional aid behind the main chip within the urine passage.

He also connected the redesign to a report of entanglement requiring hospital care. Mr. Okada presented separate replacement of damaged components as another advantage of this design.

(Source: ok-lab's diary, published March 2018)
https://ok-lab.hatenablog.com/entry/20180317/1521275320

A vibrating support chip did not reliably vibrate the main component

In an entry published in December 2018, Mr. Okada described a vibrating support prototype intended to work behind a glass main chip. He found that vibration separated the components, so it did not reliably reach the main chip. His personal testing covered only the support component, whose sensation he described as mild.

No matching product can be confirmed on the current list. Mr. Okada said this experimental urethral model needed longer durability testing before release.

(Source: ok-lab's diary, published December 2018)
https://ok-lab.hatenablog.com/entry/20181215/1544857573

Flat support chip specifications were published with the November launch

An entry published in November 2021 announced a blue flat support chip (a flat connecting part). It measured 18mm long, 3mm thick, 7mm wide at the front, and 8mm wide at the rear. The published price was ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) excluding tax. No matching product can be confirmed on the current list.

(Source: ok-lab's diary, published November 2021)
https://ok-lab.hatenablog.com/entry/2021/11/20/125643

An inverted trapezoid support chip received favorable but limited feedback

In an entry published in September 2022, a customer reported receiving a custom assembly containing an inverted trapezoid support chip. That part measured 15mm and was listed at ¥1,650 (about $11 at ¥156 = $1, rate as of 2026-09-04) in the message. The customer described a favorable sensation from the support's position near the area between the scrotum and anus.

Mr. Okada explained that he could not personally assess the experience of this unusual custom design. He therefore limited his response to sharing the customer's account. No matching product can be confirmed on the current list.

(Source: ok-lab's diary, published September 2022)
https://ok-lab.hatenablog.com/entry/2022/09/10/122847

A stainless flat support chip accommodated four threads together

In an entry published in August 2023, a customer requested a stainless flat support chip with a main chip carrying four threads. Mr. Okada initially said he had not tried that connection and would test it. He then reported that all four threads fitted together through the flat part's larger opening.

He contrasted this with the screw support, which formally accommodated only two threads in that connection. The entry reports a successful connection, without describing how the finished assembly felt in use. No matching product can be confirmed on the current list.

(Source: ok-lab's diary, published August 2023)
https://ok-lab.hatenablog.com/entry/2023/08/19/123214

The hollow support chip offered a rigid passage but could slip

In an entry published in December 2023, Mr. Okada proposed a hollow support for a tail (thread enclosed in flexible tubing). It had a 2mm attachment opening and a separate 4mm passage intended for urine. He described its rigid passage as resistant to collapse, while warning that the smooth exterior could slide out of position.

The proposed length was about 15mm, with a published price of ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) excluding tax. No matching product can be confirmed on the current list. Mr. Okada cautioned that this newly made design had received little testing.

(Source: ok-lab's diary, published December 2023)
https://ok-lab.hatenablog.com/entry/2023/12/23/122035

A disc support chip formed part of the curved wire assembly

In an entry published in April 2024, Mr. Okada described shape-memory wire (a curved metal connector) linking the main chip to a support. The support was a short resin disc, approximately 10mm across, with narrower versions proposed for thinner main chips. He placed its intended location behind the prostate area, within the urine passage.

The proposed connecting-wire lengths were 4cm, 5cm, and 6cm, with curves of roughly 70–90 degrees. No matching product can be confirmed on the current list. Mr. Okada advised discontinuing use if the outer resin covering a connection became damaged.

(Source: ok-lab's diary, published April 2024)
https://ok-lab.hatenablog.com/entry/2024/04/13/123053

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The maker's answer to support chip shapes and uses

Mr. Okada describes support parts as responses to specific design problems, rather than additions every main chip needs.

Buying a separate support chip was conditional on needing assistance

In an entry published in March 2018, Mr. Okada suggested buying the separate main component alone before adding its receiving support. The resin main component cost ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04) excluding tax, and the glass version cost ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) excluding tax. The resin support component was listed separately at ¥2,500 (about $16 at ¥156 = $1, rate as of 2026-09-04).

He said the support could be unnecessary when the main component already reached its intended location. His purchasing advice was to consider the additional support only when that assistance was needed.

(Source: ok-lab's diary, published March 2018)
https://ok-lab.hatenablog.com/entry/20180317/1521275320

An added support chip aimed to limit sharp tube bends

In an entry published in July 2022, Mr. Okada reported that an earlier thread-based tube connection gradually shifted. His revised joint connected the main chip directly to silicone tubing, with an additional support inside the reinforced version. He thought the extra part could limit sharp bending and reduce strain near the surrounding muscle.

The reinforced-joint processing charges were ¥1,000 (about $6 at ¥156 = $1, rate as of 2026-09-04) excluding tax for ceramic chips and ¥1,500 (about $10 at ¥156 = $1, rate as of 2026-09-04) excluding tax for blue chips. No matching product can be confirmed on the current list. Mr. Okada specified that this connection required workshop processing of the chip.

(Source: ok-lab's diary, published July 2022)
https://ok-lab.hatenablog.com/entry/2022/07/23/123014

Longer support chip combinations still came with reservations for beginners

In an entry published in November 2022, a reader proposed a longer, thinner, less curved main chip for people struggling to reach the prostate. Mr. Okada discussed a short blue chip with a flat support, giving an approximate combined length of 45mm. He nevertheless expressed reservations about long, nearly straight designs.

He said he had passed the proposal to the chip maker and would consider a prototype if one arrived. The entry does not record a resulting prototype test. Mr. Okada did not recommend main chips over 40mm for beginners who had not reached the intended location.

(Source: ok-lab's diary, published November 2022)
https://ok-lab.hatenablog.com/entry/2022/11/12/122932

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

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How support chip shapes and uses changed over time

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OK Prostate Chip products related to support chip shapes and uses

The current list includes the separate resin support and the main chip and stopper discussed in a February 2020 exchange.

Products that appear in these entries

The separate resin support chip is listed in OK Lab's own online store.

(Source: ok-lab's diary, published February 2020)
https://ok-lab.hatenablog.com/entry/2020/02/29/155031

Products the diary mentioned as alternatives

Mr. Okada suggested buying the separate main chip alone first. If insertion succeeded, he said the support was unnecessary and recommended the regular single-chip type for later purchases.

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Common worries about support chip shapes and uses

The customer exchanges distinguish assistance, cable layout, and stopper placement as separate questions.

"Can a support chip keep the cable inside?"

In an entry published in July 2019, a customer wanted a ceramic main chip with cable contained inside the penis. Mr. Okada proposed a compromise including a support component and an additional thread for retrieval. His quote was ¥7,000 (about $45 at ¥156 = $1, rate as of 2026-09-04) excluding tax with the support, compared with ¥5,000 (about $32 at ¥156 = $1, rate as of 2026-09-04) excluding tax for the proposal without it.

The diary does not record whether the order was completed. No matching product can be confirmed on the current list. Mr. Okada favored the extra retrieval thread as part of the proposed design.

(Source: ok-lab's diary, published July 2019)
https://ok-lab.hatenablog.com/entry/2019/07/27/130537

"Does a support chip help with larger main models?"

In an entry published in February 2020, a customer asked about pairing the separate resin support with a larger ceramic twist chip. Mr. Okada explained that the support mainly assisted small chips that were difficult to locate by touch. He expected little benefit with the larger model.

The customer's follow-up reported bleeding and inability to urinate with a homemade device; it did not establish the ordered pairing's performance. On a related question about extended wear, Mr. Okada said he did not recommend 24 hours of continuous resin-chip use.

(Source: ok-lab's diary, published February 2020)
https://ok-lab.hatenablog.com/entry/2020/02/29/155031

"Can a stopper go on the separate support chip?"

A different question in the entry published in February 2020 concerned a sphincter stopper (a part intended to limit inward movement). The customer asked which component should carry it. Mr. Okada warned that, with a main chip ahead, a stopper on the support might act only after the main chip reached the bladder.

He also said a stopper on the main chip followed by the support was an untested arrangement that he suspected could hinder movement. The exchange does not establish the performance of either arrangement. Mr. Okada considered a stopper meaningful on the separate support when that support was the only chip involved.

(Source: ok-lab's diary, published February 2020)
https://ok-lab.hatenablog.com/entry/2020/02/29/155031

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Buying from outside Japan

OK Lab ships internationally to countries covered by Japan Post's EMS courier service. Overseas orders are paid in advance by PayPal. Each order carries a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and EMS shipping is charged on top. These terms come from OK Lab's official sales-terms page (written here as plain text, not a link: ok-lab.net/docs/law), checked on September 7, 2026; confirm them on the official store before you order, because they can change.

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Summary of this article

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Source: ok-lab's diary (Okada Comfortable Life Laboratory). The original entries are in Japanese; quotations on this page are translated. Photos and videos are on the original entries.